Use these links to rapidly review the document
Table of Contents
TABLE OF CONTENTS

Table of Contents

THE INFORMATION CONTAINED IN THIS PRELIMINARY PROSPECTUS SUPPLEMENT IS NOT COMPLETE AND MAY BE CHANGED. THIS PRELIMINARY PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS ARE NOT AN OFFER TO SELL NOR DO THEY SEEK AN OFFER TO BUY THE NOTES IN ANY JURISDICTION WHERE THE OFFER OR SALE IS NOT PERMITTED.

SUBJECT TO COMPLETION
PRELIMINARY PROSPECTUS SUPPLEMENT, DATED JANUARY 9, 2012

Filed Pursuant to Rule 424(b)(5)
Registration No. 333-159071

Prospectus Supplement to Prospectus Dated May 8, 2009


LOGO

 

$                

The Allstate Corporation

         % Senior Notes Due 2042

 

 



        The Allstate Corporation will pay interest on the notes on                  and                  of each year. The first payment of interest will be made on                  , 2012. The notes will be issued only in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Allstate Corporation may redeem some or all of the notes at any time at the redemption prices discussed under the caption "Description of the Notes—Optional redemption."

        Investing in the notes involves risks. See a discussion of certain risks in the "Risk Factors" section of The Allstate Corporation's filings with the Securities and Exchange Commission that should be carefully considered before investing in the notes.



        Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense.



 
  Per Note   Total  

Public offering price

      % $    

Underwriting discount

      % $    

Proceeds, before expenses, to The Allstate Corporation

      % $    

        The initial public offering price set forth above does not include accrued interest, if any. Interest on the notes will accrue from                  , 2012 and must be paid by the purchasers if the notes are delivered after                  , 2012.

        The notes will not be listed on any securities exchange. Currently there is no public trading market for the notes.

        The underwriters expect to deliver the notes through the facilities of The Depository Trust Company against payment in New York, New York on          , 2012.



Joint Book-Runners

J.P. Morgan   Goldman, Sachs & Co.



Barclays Capital



Prospectus Supplement dated          , 2012


Table of Contents


THE ALLSTATE CORPORATION

        The Allstate Corporation is a holding company that conducts its business primarily through its subsidiaries Allstate Insurance Company ("AIC") and Allstate Life Insurance Company and their affiliates (collectively, including The Allstate Corporation, "Allstate"). Allstate is primarily engaged in the personal property and casualty insurance business and the life insurance, retirement and investment products business. Customers can access Allstate products and services such as auto insurance and homeowners insurance through more than 13,000 exclusive Allstate agencies and financial representatives in the United States and Canada. The Allstate Corporation is the largest publicly held personal lines insurer in the United States and the second largest personal property and casualty insurer in the United States based on 2010 statutory direct premiums earned. In addition, according to A.M. Best, it is the nation's 16th largest issuer of life insurance business on the basis of 2010 ordinary life insurance in force and 21st largest on the basis of 2010 statutory admitted assets.

        Our main business segments include Allstate Protection and Allstate Financial. Allstate Protection principally sells private passenger auto and homeowners insurance, primarily through agencies. These products are marketed under the Allstate, Encompass® and Esurance® brand names. Allstate brand auto and homeowners insurance products are sold primarily through Allstate exclusive agencies and, to a lesser extent, through independent agencies in areas not served by exclusive agencies. Encompass brand auto and homeowners insurance products are sold through independent agencies. Esurance brand auto insurance products are sold direct to consumers online, through a call center and through select agents, including Answer Financial Inc. Allstate Financial provides life insurance, retirement and investment products and voluntary accident and health insurance products. Allstate Financial distributes its products to individuals through multiple distribution channels, including Allstate exclusive agencies and exclusive financial specialists, independent agents, and specialized structured settlement brokers. On an opportunistic basis, Allstate Financial has sold and may continue to sell funding agreements to unaffiliated trusts used to back medium-term notes.

        The Allstate Corporation was incorporated in Delaware on November 5, 1992. Our executive offices are located at 2775 Sanders Road, Northbrook, Illinois 60062, and at Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801. Our telephone number is (847) 402-5000.

        As a holding company with no significant business operations of our own, we rely on dividends from AIC as the principal source of cash to pay dividends to our stockholders and to meet our obligations, including the payment of principal and any interest on any notes and our other debt obligations. AIC is regulated as an insurance company in Illinois. The payment of dividends by AIC is limited by Illinois insurance law to formula amounts based on statutory net income and statutory surplus, as well as the timing and amount of dividends paid in the preceding twelve months. Based on the greater of 2010 statutory net income or 10% of 2010 statutory surplus as of December 31, 2010, the maximum amount of dividends that AIC was able to pay without prior Illinois Department of Insurance approval at any point in 2011 was $1.54 billion, less dividends paid during the preceding twelve months measured at that point in time. As of December 31, 2011, dividends paid by AIC during the preceding twelve-month period totaled $838 million. At any point in time during 2012, the maximum amount of dividends that AIC will be able to pay without prior Illinois Department of Insurance approval will be an amount equal to the greater of 2011 statutory net income or 10% of 2011 statutory surplus as of December 31, 2011, less dividends paid during the preceding twelve months measured at that point in time.

        The laws of other jurisdictions that generally govern our insurance subsidiaries contain similar limitations on the payment of dividends; however, in some jurisdictions the laws may be somewhat more restrictive.

        References to "Allstate," "we," "us" and "our" in this prospectus supplement are references to The Allstate Corporation, and not to any of our subsidiaries, unless we state otherwise or the context otherwise requires.

S-1


Table of Contents


USE OF PROCEEDS

        We estimate that the net proceeds, after expenses, from the sale of the notes will be approximately $                   million. We expect to use the net proceeds for general corporate purposes, including to facilitate the repayment of $350 million aggregate principal amount of our 6.125% Senior Notes due 2012 upon their maturity on February 15, 2012 and the repurchase of our common stock through open market purchases from time to time or through an accelerated repurchase program.


CAPITALIZATION

        The following table sets forth our consolidated short term debt and capitalization as of September 30, 2011 and as adjusted to give effect to this offering and the repayment at maturity of $350 million aggregate principal amount of our 6.125% Senior Notes due 2012. The following data should be read in connection with our condensed consolidated financial statements and notes, which are incorporated by reference.

 
  As of
September 30, 2011
 
 
  Actual   As Adjusted  
 
  (in millions)
 

Short-term debt

  $   $    
 

        % Senior Notes due 2042

             

Other long-term debt

    5,907        
           
   

Total debt

    5,907        
           

Common stock and additional capital paid-in

    3,186     3,186  

Unrealized net capital gains and losses

    1,032     1,032  

Unrealized foreign currency translation adjustments

    49     49  

Unrecognized pension and other post-retirement benefit costs

    (1,135 )   (1,135 )

Retained income

    31,704     31,704  

Deferred ESOP expense

    (43 )   (43 )

Treasury stock, at cost

    (16,693 )   (16,693 )
           
   

Total shareholders' equity

    18,100     18,100  
   

Noncontrolling interest

    29     29  
           
   

Total equity

    18,129     18,129  
           
   

Total capitalization

  $ 24,036   $    
           

S-2


Table of Contents


SELECTED CONSOLIDATED FINANCIAL INFORMATION

        The following table sets forth selected consolidated statement of operations and financial position data and other data for the periods indicated. The financial data for each of the five years in the period ended December 31, 2010 are derived from our audited consolidated financial statements. The financial data for the nine-month periods ended September 30, 2011 and 2010 are derived from our unaudited condensed consolidated financial statements. The following amounts should be read in conjunction with the consolidated financial statements and notes thereto contained in our other filings with the Securities and Exchange Commission available as described under "Where You Can Find More Information" in the accompanying prospectus.

 
  As of or for the
nine months
ended September 30,
  As of or for the year
ended December 31,
 
 
  2011   2010   2010   2009   2008   2007   2006  
 
  (Unaudited)
  (Unaudited)
   
   
   
   
   
 
 
  (Dollars in millions, except per share data)
 

Consolidated statements of operations data:

                                           

Insurance premiums and contract charges

  $ 21,005   $ 21,152   $ 28,125   $ 28,152   $ 28,862   $ 29,099   $ 29,333  

Net investment income

    2,996     3,104     4,102     4,444     5,622     6,435     6,177  

Realized capital gains and losses

    417     (943 )   (827 )   (583 )   (5,090 )   1,235     286  
 

Total revenues

    24,418     23,313     31,400     32,013     29,394     36,769     35,796  

Benefits, claims, expenses and other

    24,493     22,562     30,285     30,772     32,413     30,106     28,525  

(Loss) gain on disposition of operations

    (17 )   12     11     7     (6 )   (10 )   (93 )

Income tax (benefit) expense

    (156 )   131     198     394     (1,346 )   2,017     2,185  

Net income (loss)

  $ 64   $ 632   $ 928   $ 854   $ (1,679 ) $ 4,636   $ 4,993  

Per common share data:

                                           

Net income (loss) per share—basic

  $ 0.12   $ 1.17   $ 1.72   $ 1.58   $ (3.06 ) $ 7.80   $ 7.88  

Net income (loss) per share—diluted

  $ 0.12   $ 1.16   $ 1.71   $ 1.58   $ (3.06 ) $ 7.76   $ 7.83  

Cash dividends declared per common share

  $ 0.63   $ 0.60   $ 0.80   $ 0.80   $ 1.64   $ 1.52   $ 1.40  

Consolidated financial position data:

                                           

Investments

    97,525     102,214     100,483     99,833     95,998     118,980     119,757  

Total assets

    126,959     132,534     130,874     132,652     134,798     156,408     157,554  

Reserve for claims and claims expenses, life-contingent contract benefits and contractholder funds

    78,479     82,185     81,145     84,659     90,750     94,052     93,683  

Short-term debt

                            12  

Long-term debt

    5,907     5,909     5,908     5,910     5,659     5,640     4,650  

Shareholders' equity

    18,100     19,274     19,016     16,692     12,641     21,851     21,846  

Equity

    18,129     19,302     19,044     16,721     12,673     21,902     21,937  

Other data:

                                           

Ratio of earnings to fixed charges(1)(2)

        1.5     1.5     1.5         3.2     3.4  

(1)
For purposes of this computation, earnings consist of income from continuing operations before income tax expense and dividends on preferred securities. Fixed charges consist of interest expense, including interest credited to contractholder funds, amortization of financing costs, that portion of rental expense that is representative of the interest factor and dividends on redeemable preferred securities.

(2)
Earnings for the nine months ended September 30, 2011 were insufficient to cover fixed charges by $92 million. Earnings for the year ended December 31, 2008 were insufficient to cover fixed charges by $3.03 billion.

S-3


Table of Contents


DESCRIPTION OF THE NOTES

        We have summarized provisions of the notes below. This summary supplements and replaces (if inconsistent with) the description of debt securities and the general terms and provisions of debt securities under the caption "Description of Debt Securities" in the accompanying prospectus. This summary does not purport to be complete and is qualified in its entirety by reference to the indenture referred to below.

General

        The notes will be issued under an indenture, dated as of December 16, 1997, as amended by a third supplemental indenture, dated as of July 23, 1999, as amended by a sixth supplemental indenture, dated as of June 12, 2000, and as supplemented by a supplemental indenture to be dated as of                   , 2012, with respect to the issuance of the notes, between us and U.S. Bank National Association, as trustee (successor in interest to State Street Bank and Trust Company).

        The notes will initially be limited to a total principal amount of $                  . We may, without the consent of the holders of the notes, issue additional notes having the same interest rate, maturity date and other terms as described in this prospectus supplement and in the accompanying prospectus, except for the public offering price and issue date. Any additional notes, together with the notes offered by this prospectus supplement, will constitute a single series of notes under the indenture. No additional notes may be issued if an event of default under the indenture has occurred and is continuing with respect to the notes.

        The notes will mature on                   , 2042 and will bear interest at        % per year. Interest on the notes will accrue from                   , 2012. The notes provide that we will:

        In the event that any date on which interest is payable is not a business day, then payment of interest payable on that date will be made on the next business day (and without any interest or other payment in respect of any delay).

        "Business day" means any day, other than a Saturday or Sunday, on which banks in The City of New York and Boston, Massachusetts are not required by law to close.

        We will issue the notes only in fully registered form, without coupons, in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The notes will not be subject to any sinking fund.

Ranking

        The notes will be our senior unsecured obligations and will rank equally in right of payment with all of our other existing and future senior unsecured and unsubordinated indebtedness. The notes will rank senior to any subordinated indebtedness.

        All existing and future liabilities of our subsidiaries will be effectively senior to the notes. Since all of our operations are conducted through subsidiaries, our cash flow and subsequent ability to service debt, including the notes, are dependent on the earnings of our subsidiaries and the distribution of

S-4


Table of Contents


those earnings, or upon loans or other payments of funds by the subsidiaries, to us. The subsidiaries are separate and distinct legal entities and have no obligation to pay any amount pursuant to the notes or otherwise, whether by dividends, loans or other payments. In addition, since our subsidiaries are insurance companies, their ability to pay dividends to us is subject to regulatory limitations. See "Business—Regulation" in our Annual Report on Form 10-K for the year ended December 31, 2010, which is incorporated in this prospectus supplement by reference.

Optional redemption

        The notes are redeemable, in whole or in part, at any time at a redemption price equal to the greater of:

plus, in either of the above cases, accrued and unpaid interest thereon to the redemption date.

        "Adjusted Treasury Rate" means, with respect to any redemption date:

The Adjusted Treasury Rate shall be calculated on the third business day preceding the redemption date.

        "Comparable Treasury Issue" means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the securities to be redeemed that would be used, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of such securities ("Remaining Life").

        "Comparable Treasury Price" means (1) the average of five Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Independent Investment Banker obtains fewer than five such Reference Treasury Dealer Quotations, the average of all such quotations.

        "Independent Investment Banker" means one of the Reference Treasury Dealers appointed by us.

S-5


Table of Contents

        "Reference Treasury Dealer" means:

        "Reference Treasury Dealer Quotations" means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at 5:00 p.m., New York City Time, on the third business day preceding such redemption date.

        We will mail a notice of redemption at least 30 days but not more than 60 days before the redemption date to each holder of the notes to be redeemed. If less than all of the notes are to be redeemed, the trustee will select, by such method as it will deem fair and appropriate, including pro rata or by lot, the securities to be redeemed in whole or in part.

        Unless we default in payment of the redemption price, on and after the redemption date, interest will cease to accrue on the notes or portions thereof called for redemption.

Defeasance

        The defeasance and covenant defeasance provisions of the indenture described under the caption "Description of Debt Securities—Defeasance and Covenant Defeasance" in the accompanying prospectus will apply to the notes.

Notices

        We will mail notices and communications to the holder's address shown on the register of the notes.

The trustee; paying agents and transfer agents

        U.S. Bank National Association (successor in interest to State Street Bank and Trust Company) is the trustee under the indenture. The trustee and its affiliates also perform certain commercial banking services for us for which they receive customary fees. The trustee will be the paying agent and transfer agent for the notes.

Book-Entry System

        The Depository Trust Company, or DTC, which we refer to along with its successors in this capacity as the depositary, will act as securities depositary for the notes. The notes will be issued only as fully registered securities registered in the name of Cede & Co., the depositary's nominee. One or more fully registered global notes, representing the total aggregate principal amount of the notes, will be issued and will be deposited with the depositary or its custodian and will bear a legend regarding the restrictions on exchanges and registration of transfer referred to below.

        The laws of some jurisdictions may require that some purchasers of securities take physical delivery of securities in definitive form. These laws may impair the ability to transfer beneficial interests in the notes so long as the notes are represented by global notes.

        Investors may elect to hold interests in the notes in global form through either DTC in the United States or Clearstream Banking, societe anonyme ("Clearstream, Luxembourg") or Euroclear

S-6


Table of Contents


Bank S.A./N.V. ("Euroclear"), if they are participants in those systems, or indirectly through organizations which are participants in those systems. Clearstream, Luxembourg and Euroclear will hold interests on behalf of their participants through customers' securities accounts in Clearstream, Luxembourg's and Euroclear's names on the books of their respective depositaries, which in turn will hold such interests in customers' securities accounts in the depositaries' names on the books of DTC. Citibank, N.A. will act as depositary for Clearstream, Luxembourg and JPMorgan Chase Bank, N.A. will act as depositary for Euroclear (in such capacities, the "U.S. Depositaries").

        DTC advises that it is a limited-purpose trust company organized under the New York Banking Law, a "banking organization" within the meaning of the New York Banking Law, a member of the Federal Reserve System, a "clearing corporation" within the meaning of the New York Uniform Commercial Code and a "clearing agency" registered pursuant to the provisions of Section 17A of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The depositary holds securities that its participants (the "DTC Participants") deposit with the depositary. The depositary also facilitates the settlement among participants of securities transactions, including transfers and pledges, in deposited securities through electronic computerized book-entry changes in participants' accounts, thereby eliminating the need for physical movement of securities certificates. Direct participants include securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations. The depositary is owned by a number of its direct participants and by the New York Stock Exchange, the American Stock Exchange, Inc., and the Financial Industry Regulatory Authority, Inc. Access to the depositary's system is also available to others, including securities brokers and dealers, banks and trust companies that clear transactions through or maintain a direct or indirect custodial relationship with a direct participant either directly, or indirectly. The rules applicable to the depositary and its participants are on file with the SEC.

        Clearstream, Luxembourg advises that it is incorporated under the laws of Luxembourg as a professional depositary. Clearstream, Luxembourg holds securities for its participating organizations ("Clearstream Participants") and facilitates the clearance and settlement of securities transactions between Clearstream Participants through electronic book-entry changes in accounts of Clearstream Participants, thereby eliminating the need for physical movement of certificates. Clearstream, Luxembourg provides to Clearstream Participants, among other things, services for safekeeping, administration, clearance and settlement of internationally traded securities and securities lending and borrowing. Clearstream, Luxembourg interfaces with domestic markets in several countries. As a professional depositary, Clearstream, Luxembourg is subject to regulation by the Luxembourg Commission for the Supervision of the Financial Sector (Commission de Surveillance du Secteur Financier). Clearstream Participants are recognized financial institutions around the world, including underwriters, securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations and may include the underwriters. Indirect access to Clearstream, Luxembourg is also available to others, such as banks, brokers, dealers and trust companies that clear through or maintain a custodial relationship with a Clearstream Participant, either directly or indirectly.

        Distributions with respect to the notes held beneficially through Clearstream, Luxembourg will be credited to cash accounts of Clearstream Participants in accordance with its rules and procedures, to the extent received by the U.S. Depositary for Clearstream, Luxembourg.

        Euroclear advises that it was created in 1968 to hold securities for participants of Euroclear ("Euroclear Participants") and to clear and settle transactions between Euroclear Participants through simultaneous electronic book-entry delivery against payment, thereby eliminating the need for physical movement of certificates and any risk from lack of simultaneous transfers of securities and cash. Euroclear includes various other services, including securities lending and borrowing and interfaces with domestic markets in several countries. Euroclear is operated by Euroclear Bank S.A./N.V. (the "Euroclear Operator"). All operations are conducted by the Euroclear Operator, and all Euroclear securities clearance accounts and Euroclear cash accounts are accounts with the Euroclear Operator.

S-7


Table of Contents


Euroclear Participants include banks (including central banks), securities brokers and dealers and other professional financial intermediaries and may include the underwriters. Indirect access to Euroclear is also available to other firms that clear through or maintain a custodial relationship with a Euroclear Participant, either directly or indirectly.

        Securities clearance accounts and cash accounts with the Euroclear Operator are governed by the Terms and Conditions Governing Use of Euroclear and the related Operating Procedures of the Euroclear System, and applicable Belgian law (collectively, the "Terms and Conditions"). The Terms and Conditions govern transfers of securities and cash within the Euroclear System, withdrawals of securities and cash from the Euroclear System, and receipts of payments with respect to securities in the Euroclear System. All securities in the Euroclear System are held on a fungible basis without attribution of specific certificates to specific securities clearance accounts. The Euroclear Operator acts under the Terms and Conditions only on behalf of Euroclear Participants, and has no records of or relationship with persons holding through Euroclear Participants.

        Distributions with respect to the notes held beneficially through the Euroclear System will be credited to the cash accounts of Euroclear Participants in accordance with the Terms and Conditions, to the extent received by the U.S. Depositary for the Euroclear System.

        We will issue the notes in definitive certificated form if the depositary notifies us that it is unwilling or unable to continue as depositary or the depositary ceases to be a clearing agency registered under the Exchange Act, and a successor depositary is not appointed by us within 90 days. In addition, beneficial interests in a global note may be exchanged for definitive certificated notes upon request by or on behalf of the depositary in accordance with customary procedures following the request of a beneficial owner seeking to exercise or enforce its rights under such notes. If we determine at any time that the notes shall no longer be represented by global notes, we will inform the depositary of such determination who will, in turn, notify participants of their right to withdraw their beneficial interest from the global notes, and if such participants elect to withdraw their beneficial interests, we will issue certificates in definitive form in exchange for such beneficial interests in the global notes. Any global note, or portion thereof, that is exchangeable pursuant to this paragraph will be exchangeable for note certificates, as the case may be, registered in the names directed by the depositary. We expect that these instructions will be based upon directions received by the depositary from its participants with respect to ownership of beneficial interests in the global notes.

        As long as the depositary or its nominee is the registered owner of the global notes, the depositary or its nominee, as the case may be, will be considered the sole owner and holder of the global notes and all notes represented by these global notes for all purposes under the notes and the indenture governing the notes. Except in the limited circumstances referred to above, owners of beneficial interests in global notes:

        All payments on the notes represented by the global notes and all transfers and deliveries of related notes will be made to the depositary or its nominee, as the case may be, as the holder of the securities.

        Ownership of beneficial interests in the global notes will be limited to participants or persons that may hold beneficial interests through institutions that have accounts with the depositary or its nominee. Ownership of beneficial interests in global notes will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by the depositary or its nominee, with respect to participants' interests, or any participant, with respect to interests of persons held by the

S-8


Table of Contents


participant on their behalf. Payments, transfers, deliveries, exchanges and other matters relating to beneficial interests in global notes may be subject to various policies and procedures adopted by the depositary from time to time. Neither we nor the trustee will have any responsibility or liability for any aspect of the depositary's or any participant's records relating to, or for payments made on account of, beneficial interests in global notes, or for maintaining, supervising or reviewing any of the depositary's records or any participant's records relating to these beneficial ownership interests.

        Although the depositary has agreed to the foregoing procedures in order to facilitate transfers of interests in the global notes among participants, the depositary is under no obligation to perform or continue to perform these procedures, and these procedures may be discontinued at any time. We will not have any responsibility for the performance by the depositary or its direct participants or indirect participants under the rules and procedures governing the depositary.

        The information in this section concerning the depositary, its book-entry system, Clearstream, Luxembourg and the Euroclear System has been obtained from sources that we believe to be reliable, but we have not attempted to verify the accuracy of this information.

Global Clearance and Settlement Procedures

        Initial settlement for the notes will be made in immediately available funds. Secondary market trading between DTC Participants will occur in the ordinary way in accordance with DTC rules and will be settled in immediately available funds using DTC's Same-Day Funds Settlement System. Secondary market trading between Clearstream Participants and/or Euroclear Participants will occur in the ordinary way in accordance with the applicable rules and operating procedures of Clearstream, Luxembourg and the Euroclear System, as applicable.

        Cross-market transfers between persons holding directly or indirectly through DTC on the one hand, and directly or indirectly through Clearstream Participants or Euroclear Participants, on the other, will be effected through DTC in accordance with DTC rules on behalf of the relevant European international clearing system by its U.S. Depositary; however, such cross-market transactions will require delivery of instructions to the relevant European international clearing system by the counterparty in such system in accordance with its rules and procedures and within its established deadlines (European time). The relevant European international clearing system will, if the transaction meets its settlement requirements, deliver instructions to its U.S. Depositary to take action to effect final settlement on its behalf by delivering or receiving securities in DTC, and making or receiving payment in accordance with normal procedures for same-day funds settlement applicable to DTC. Clearstream Participants and Euroclear Participants may not deliver instructions directly to their respective U.S. Depositaries.

        Because of time-zone differences, credits of notes received in Clearstream, Luxembourg or the Euroclear System as a result of a transaction with a DTC Participant will be made during subsequent securities settlement processing and dated the business day following the DTC settlement date. Such credits or any transactions in such notes settled during such processing will be reported to the relevant Euroclear Participant or Clearstream Participant on such business day. Cash received in Clearstream, Luxembourg or the Euroclear System as a result of sales of the notes by or through a Clearstream Participant or a Euroclear Participant to a DTC Participant will be received with value on the DTC settlement date but will be available in the relevant Clearstream, Luxembourg or the Euroclear System cash account only as of the business day following settlement in DTC.

        Although DTC, Clearstream, Luxembourg and the Euroclear System have agreed to the foregoing procedures in order to facilitate transfers of notes among participants of DTC, Clearstream, Luxembourg and the Euroclear System, they are under no obligation to perform or continue to perform such procedures and such procedures may be discontinued or changed at any time.

S-9


Table of Contents


UNDERWRITING

        We have entered into an underwriting agreement with the underwriters for the offering with respect to the notes. Subject to certain conditions, each underwriter has severally agreed to purchase the principal amount of notes indicated in the following table:

Underwriter
  Principal
Amount
of Notes
 

J.P. Morgan Securities LLC

  $    

Goldman, Sachs & Co. 

  $    

Barclays Capital Inc. 

  $    
       

Total

  $    
       

        The underwriters are committed to take and pay for all of the notes being offered, if any are taken.

        Notes sold by the underwriters to the public will initially be offered at the initial public offering price set forth on the cover of this prospectus supplement. Any notes sold by the underwriters to securities dealers may be sold at a discount from the initial public offering price of up to        % of the principal amount of notes. Any such securities dealers may resell any notes purchased from the underwriters to certain other brokers or dealers at a discount from the initial public offering price of up to        % of the principal amount of notes. If all the notes are not sold at the initial offering price, the underwriters may change the offering price and the other selling terms.

        The following table shows the per note and total underwriting discounts and commissions to be paid to the underwriters.

 
  Per Note   Total  

Underwriting discount

  $     $    

        We estimate that our total expenses of the offering, excluding underwriting discounts and commissions, will be approximately $0.7 million.

        We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the "Securities Act"), or to contribute to payments the underwriters may be required to make because of any of those liabilities.

        The notes are a new issue of securities with no established trading market. We have been advised by the underwriters that the underwriters intend to make a market in the notes but are not obligated to do so and may discontinue market making at any time without notice. No assurance can be given as to the liquidity of the trading market for the notes.

        In connection with the offering the underwriters may purchase and sell notes in the open market. These transactions may include short sales, stabilizing transactions and purchases to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater number of notes than they are required to purchase in the offering. Stabilizing transactions consist of certain bids or purchases made for the purpose of preventing or retarding a decline in the market price of the notes while the offering is in progress.

        The underwriters also may impose a penalty bid. This occurs when one of the representatives repays to the underwriters a portion of the underwriting discount received by it, because the representatives have repurchased notes sold by or for the account of such underwriter in stabilizing or short covering transactions.

S-10


Table of Contents

        These activities by the underwriters, as well as other purchases by the underwriters for their own accounts, may stabilize, maintain or otherwise affect the market price of the notes. As a result, the price of the notes may be higher than the price that otherwise might exist in the open market. If these activities are commenced, they may be discontinued by the underwriters at any time. These transactions may be effected in the over-the-counter market or otherwise.

Sales Outside the United States

        Each of the underwriters has agreed that it will not offer, sell or deliver any of the notes in any jurisdiction outside the United States except under circumstances that are reasonably designed to result in compliance with the applicable laws thereof.

        In relation to each Member State of the European Economic Area which has implemented the Prospectus Directive (each, a "Relevant Member State"), each underwriter has represented and agreed that with effect from and including the date on which the Prospectus Directive is implemented in that Relevant Member State (the "Relevant Implementation Date") it has not made and will not make an offer of notes which are the subject of the offering contemplated by this prospectus supplement to the public in that Relevant Member State other than:

provided that no such offer of notes shall require us or any underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Directive or supplement a prospectus pursuant to Article 16 of the Prospectus Directive.

        For the purposes of the above, (i) the expression an "offer of notes to the public" in relation to any notes in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and the notes to be offered so as to enable an investor to decide to purchase or subscribe the notes, as the same may be varied in that Member State by any measure implementing the Prospectus Directive in that Member State, (ii) the expression "Prospectus Directive" means Directive 2003/71/EC (and amendments thereto, including the 2010 PD Amending Directive, to the extent implemented in the Relevant Member State), and includes any relevant implementing measure in the Relevant Member State, and (iii) the expression "2010 PD Amending Directive" means Directive 2010/73/EU.

        Each underwriter has represented and agreed that it has only communicated or caused to be communicated and will only communicate or cause to be communicated an invitation or inducement to engage in investment activity (within the meaning of Section 21 of the Financial Services and Markets Act 2000) in connection with the issue or sale of the notes in circumstances in which Section 21(1) of such Act does not apply to The Allstate Corporation, and that it has complied and will comply with all applicable provisions of such Act with respect to anything done by it in relation to any notes in, from or otherwise involving the United Kingdom.

S-11


Table of Contents

        The notes may not be offered or sold by means of any document other than (i) in circumstances which do not constitute an offer to the public within the meaning of the Companies Ordinance (Cap. 32, Laws of Hong Kong), or (ii) to "professional investors" within the meaning of the Securities and Futures Ordinance (Cap. 571, Laws of Hong Kong) and any rules made thereunder, or (iii) in other circumstances which do not result in the document being a "prospectus" within the meaning of the Companies Ordinance (Cap. 32, Laws of Hong Kong), and no advertisement, invitation or document relating to the notes may be issued or may be in the possession of any person for the purpose of issue (in each case whether in Hong Kong or elsewhere), which is directed at, or the contents of which are likely to be accessed or read by, the public in Hong Kong (except if permitted to do so under the laws of Hong Kong) other than with respect to notes which are or are intended to be disposed of only to persons outside Hong Kong or only to "professional investors" within the meaning of the Securities and Futures Ordinance (Cap. 571, Laws of Hong Kong) and any rules made thereunder.

        The notes have not been and will not be registered under the Financial Instruments and Exchange Law of Japan (the "Financial Instruments and Exchange Law") and each underwriter has agreed that it will not offer or sell any notes, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to others for re-offering or resale, directly or indirectly, in Japan or to a resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the Financial Instruments and Exchange Law and any other applicable laws, regulations and ministerial guidelines of Japan.

        This prospectus supplement and the accompanying prospectus have not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, this prospectus supplement, the accompanying prospectus, any free writing prospectus and any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the notes may not be circulated or distributed, nor may the notes be offered or sold, or be made the subject of an invitation for subscription or purchase, whether directly or indirectly, to persons in Singapore other than (i) to an institutional investor under Section 274 of the Securities and Futures Act, Chapter 289 of Singapore (the "SFA"), (ii) to a relevant person, or any person pursuant to Section 275(1A), and in accordance with the conditions, specified in Section 275 of the SFA or (iii) otherwise pursuant to, and in accordance with the conditions of, any other applicable provision of the SFA.

        Where the notes are subscribed or purchased under Section 275 by a relevant person which is: (a) a corporation (which is not an accredited investor) the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an accredited investor; or (b) a trust (where the trustee is not an accredited investor) whose sole purpose is to hold investments and each beneficiary is an accredited investor, shares, debentures and units of shares and debentures of that corporation or the beneficiaries' rights and interest in that trust shall not be transferable for 6 months after that corporation or that trust has acquired the notes under Section 275 except: (1) to an institutional investor under Section 274 of the SFA or to a relevant person, or any person pursuant to Section 275(1A), and in accordance with the conditions, specified in Section 275 of the SFA; (2) where no consideration is given for the transfer; or (3) by operation of law.

S-12


Table of Contents

Other Relationships

        The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities.

        Certain of the underwriters and their respective affiliates may have performed various financial advisory and investment banking services for us from time to time for which they received or will receive customary fees and expenses. The underwriters may, from time to time, engage in transactions with and perform services for us in the ordinary course of their business.

        In the ordinary course of their various business activities, the underwriters and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers, and such investment and securities activities may involve securities and/or instruments of the issuer. The underwriters and their respective affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

Settlement Cycle

        It is expected that delivery of the notes will be made against payment therefor on                        , 2012, which will be the second business day following the date of pricing of the notes (this settlement cycle being referred to as "T+2"). Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in three business days, unless the parties to a trade expressly agree otherwise. Purchasers of notes should be aware that the ability to settle secondary market trades of the notes effected on the date of pricing may be affected by the T+2 settlement and should consult their advisor.

S-13


Table of Contents


LEGAL MATTERS

        Certain matters in connection with this offering of the notes will be passed upon for The Allstate Corporation by Mary J. McGinn, Deputy General Counsel of The Allstate Corporation, and Dewey & LeBoeuf LLP, New York, New York. Certain matters will be passed upon for the underwriters by Willkie Farr & Gallagher LLP, New York, New York. Dewey & LeBoeuf LLP has from time to time represented, and continues to represent, certain of the underwriters on other legal matters. Ms. McGinn is a full-time employee of Allstate Insurance Company and an officer of The Allstate Corporation. As of November 30, 2011, Ms. McGinn beneficially owned 180,842 Allstate common shares, of which 155,777 were subject to options. These shares and options include awards under Allstate's employee benefit plans, subject to forfeiture under certain circumstances.


EXPERTS

        The consolidated financial statements and the related financial statement schedules, incorporated in this prospectus supplement by reference from The Allstate Corporation's Annual Report on Form 10-K, and the effectiveness of The Allstate Corporation's internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports which are incorporated herein by reference (which reports express an unqualified opinion on the financial statements and financial statement schedules and includes an explanatory paragraph relating to a change in the recognition and presentation for other-than-temporary impairments of debt securities in 2009). Such consolidated financial statements and financial statement schedules have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

        With respect to the unaudited interim financial information which is incorporated herein by reference, Deloitte & Touche LLP, an independent registered public accounting firm, have applied limited procedures in accordance with the standards of the Public Company Accounting Oversight Board (United States) for a review of such information. However, as stated in their reports included in the quarterly reports on Form 10-Q of The Allstate Corporation and incorporated by reference herein, they did not audit and they do not express an opinion on that interim financial information. Accordingly, the degree of reliance on their reports on such information should be restricted in light of the limited nature of the review procedures applied. Deloitte & Touche LLP are not subject to the liability provisions of Section 11 of the Securities Act for their reports on the unaudited interim financial information because those reports are not "reports" or a "part" of the Registration Statement prepared or certified by an accountant within the meaning of Sections 7 and 11 of the Securities Act.

S-14


Table of Contents

PROSPECTUS

THE ALLSTATE CORPORATION

Debt Securities
Common Stock
Preferred Stock
Depositary Shares
Warrants
Stock Purchase Contracts
Stock Purchase Units



ALLSTATE FINANCING III   ALLSTATE FINANCING V
ALLSTATE FINANCING IV   ALLSTATE FINANCING VI

Trust Preferred Securities
Fully and Unconditionally Guaranteed
as described in this Prospectus and the
accompanying prospectus supplement
by The Allstate Corporation



        By this prospectus, we, in conjunction with our trusts, may offer from time to time any combination of the securities described in this prospectus.

        We will provide the specific terms of these securities in supplements to this prospectus. We can only use this prospectus to offer and sell any specific security by also including a prospectus supplement for that security. You should read this prospectus and the prospectus supplements carefully before you invest.

        Unless stated otherwise in this prospectus or the applicable prospectus supplement, these securities will not be listed on any securities exchange.

        Investing in our securities or the securities of our trusts involves risks. See "Risk Factors" on page 3 of this prospectus.

        Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.



The date of this prospectus is May 8, 2009


Table of Contents


TABLE OF CONTENTS

 
  Page

ABOUT THIS PROSPECTUS

  i

THE ALLSTATE CORPORATION

 
1

THE TRUSTS

 
1

RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

 
2

RISK FACTORS

 
3

USE OF PROCEEDS

 
3

DESCRIPTION OF DEBT SECURITIES

 
3

DESCRIPTION OF CAPITAL STOCK

 
17

DESCRIPTION OF DEPOSITARY SHARES

 
21

DESCRIPTION OF WARRANTS

 
23

DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS

 
26

DESCRIPTION OF TRUST PREFERRED SECURITIES

 
26

DESCRIPTION OF PREFERRED SECURITIES GUARANTEES

 
28

PLAN OF DISTRIBUTION

 
32

WHERE YOU CAN FIND MORE INFORMATION

 
33

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

 
34

LEGAL OPINIONS

 
35

EXPERTS

 
35

ERISA MATTERS

 
35

Table of Contents

ABOUT THIS PROSPECTUS

        This prospectus is part of a registration statement that we and Allstate Financing III, Allstate Financing IV, Allstate Financing V and Allstate Financing VI, which we refer to as the trusts, have filed with the Securities and Exchange Commission using a "shelf" registration process. Under this shelf process, we and the trusts may sell the securities described in the prospectus from time to time. This prospectus provides you with a general description of the securities we and the trusts may offer. We and the trusts may also add, update or change information contained in this prospectus through one or more supplements to this prospectus. You should read both this prospectus and any prospectus supplement together with additional information described under the heading "Where You Can Find More Information."

        No person has been authorized to give any information or to make any representations, other than those contained or incorporated by reference in this prospectus and, if given or made, such information or representation must not be relied upon as having been authorized by The Allstate Corporation or the trusts, or any underwriter, agent, dealer or remarketing firm. Neither the delivery of this prospectus nor any sale made hereunder shall under any circumstances create any implication that there has been no change in the affairs of The Allstate Corporation since the date hereof or that the information contained or incorporated by reference herein is correct as of any time subsequent to the date of such information. This prospectus does not constitute an offer to sell or a solicitation of an offer to buy any securities by anyone in any jurisdiction in which such offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so or to any person to whom it is unlawful to make such offer or solicitation.

        References to "Allstate," "we," "us" and "our" in this prospectus are references to The Allstate Corporation, and not to any of our subsidiaries, unless we state otherwise or the context otherwise requires.

i


Table of Contents

THE ALLSTATE CORPORATION

        We are a holding company that conducts most of our business through our subsidiaries Allstate Insurance Company, or AIC, and Allstate Life Insurance Company. We are the largest publicly held personal lines insurer in the United States and the second largest personal property and casualty insurer in the United States based on 2007 statutory direct premiums earned. Our main business segments include Allstate Protection and Allstate Financial. Allstate Protection has more than 14,000 exclusive agencies and exclusive financial professionals in the United States and Canada. It also includes our Encompass® and Deerbrook® brands property and casualty products sold exclusively through approximately 8,800 independent agencies across the country. Allstate Financial provides life and supplemental accident and health insurance, annuity, banking and retirement products designed for individual, institutional and worksite customers that are distributed through Allstate agencies, independent agencies, financial institutions and broker-dealers. According to A.M. Best, as of December 31, 2007, the Allstate Financial segment is the nation's 16th largest issuer of life insurance business based on 2007 ordinary life insurance in force and the 17th largest based on 2007 statutory admitted assets.

        We were incorporated in Delaware on November 5, 1992. Our executive offices are located at 2775 Sanders Road, Northbrook, Illinois 60062, and at Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801. Our telephone number is (847) 402-5000.

        As a holding company with no significant business operations of our own, we rely on dividends from AIC as the principal source of cash to pay dividends to our stockholders and to meet our obligations, including the payment of principal of and any interest on our debt obligations. AIC is regulated as an insurance company in Illinois. Under Illinois law, AIC may not pay a dividend without notifying the Illinois Division of Insurance and providing specified financial information. Furthermore, Illinois law requires AIC to notify and receive approval from the Director of the Illinois Division of Insurance for the declaration or payment of any dividend which, together with other dividends or distributions made within the preceding twelve months, exceeds the greater of:

        The laws of other jurisdictions that generally govern our insurance subsidiaries contain similar limitations on the payment of dividends; however, in some jurisdictions the laws may be somewhat more restrictive.


THE TRUSTS

        The four trusts, Allstate Financing III, IV, V and VI, are Delaware statutory trusts formed to raise capital for us by issuing common securities to us and preferred securities issued under this prospectus and a prospectus supplement, and investing the proceeds in subordinated debt securities issued by us.

        We will directly or indirectly own all of the common securities of each of our trust subsidiaries. The common securities will rank equally with, and each trust will make payments on the common securities in proportion to, the trust preferred securities, except that if an event of default occurs under the declaration of one of the trusts, our rights, as holder of the common securities, to payments will be subordinated to your rights as holder of the trust preferred securities.

        Each of our trusts has a term of approximately 55 years, but may terminate earlier as provided in its declaration, each declaration being governed by Delaware law. As holder of the common securities of the trusts, we are entitled to appoint, remove or replace any of, or increase or decrease the number of, the trustees of each of our trusts. Each of our trusts' business and affairs will be conducted by the trustees we appoint. The trustees' duties and obligations are governed by the trusts' declarations and

1


Table of Contents


applicable law. Prior to the issuance of any trust preferred securities, we will ensure that a majority of the trustees of the applicable trust are persons who are our employees or officers or affiliates and that one trustee of each trust is a financial institution that will not be an affiliate of ours and that will act as property trustee, guarantee trustee and indenture trustee for purposes of the Trust Indenture Act of 1939. In addition, unless the property trustee maintains a principal place of business in the State of Delaware and meets the other requirements of applicable law, one other trustee of each of our trusts will have its principal place of business or reside in the State of Delaware.

        We will pay all of our trusts' fees and expenses, including those relating to any offering of trust preferred securities. In addition, we will guarantee payments on the trust preferred securities to the extent our trusts can themselves make payments on the trust preferred securities.

        The name and office of the Delaware trustee for each trust in the State of Delaware is Wachovia Bank of Delaware National Association (as successor in interest to Delaware Trust Capital Management, Inc.), 1 Rodney Square, 920 King Street, Suite 100, Wilmington, Delaware 19801. The principal place of business of each trust is 2775 Sanders Road, Northbrook, Illinois 60062. The telephone number of each trust in Northbrook, Illinois is (847) 402-5000.


RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS
TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

        The following table shows the ratio of earnings to fixed charges and the ratio of earnings to fixed charges and preferred stock dividends for Allstate and its subsidiaries for the periods indicated:

 
  For the
three months
ended March 31,
  For the year ended
December 31,
 
 
  2009   2008   2008   2007   2006   2005   2004  

Ratio of earnings to fixed charges(1)(2)(3)

        1.6X         3.2X     3.4X     1.8X     3.0X  

2


Table of Contents


RISK FACTORS

        Investing in our securities or the securities of our trusts involves risks. You should carefully consider the risks described in our filings with the Securities and Exchange Commission referred to below in "Where You Can Find More Information" as well as those included in any prospectus supplement hereto. For example, our Annual Report on Form 10-K for the year ended December 31, 2008 contains a discussion of significant risks under the caption "Risk Factors" which could be relevant to your investment in the securities. Our subsequent filings with the Securities and Exchange Commission may contain amended and updated discussions of significant risks.


USE OF PROCEEDS

        Unless we specify otherwise in the applicable prospectus supplement accompanying this prospectus, we will use the net proceeds from the sale of the securities for general corporate purposes. Each trust will invest all proceeds received from the sale of its trust preferred securities in a particular series of subordinated debt securities to be issued by us.


DESCRIPTION OF DEBT SECURITIES

        The following description of the debt securities and terms of the indentures is a summary. It summarizes only those aspects of the debt securities and those portions of the indentures which we believe will be most important to your decision to invest in our debt securities. You should keep in mind, however, that it is the indentures, and not this summary, which define your rights as a debtholder. There may be other provisions in the indentures which are also important to you. You should read the indentures for a full description of the terms of the debt. The senior indenture and the subordinated indenture are filed as exhibits to the Registration Statement that includes this prospectus. See "Where You Can Find More Information" for information on how to obtain copies of the senior indenture and the subordinated indenture.

        The debt securities may be issued from time to time in one or more series. The particular terms of the debt securities offered by any prospectus supplement and the extent to which the general provisions described below may apply to such debt securities will be outlined in the applicable prospectus supplement.

        We will issue the senior debt securities under a Senior Indenture, entered into between Allstate and U.S. Bank National Association (as successor in interest to State Street Bank and Trust Company), as trustee, dated December 16, 1997, as amended by a third supplemental indenture dated as of July 23, 1999 and as amended by a sixth supplemental indenture dated as of June 12, 2000 and as may be supplemented by one or more additional supplemental indentures. We will issue the subordinated debt securities under a separate Subordinated Indenture, entered into between Allstate and U.S. Bank National Association (as successor in interest to State Street Bank and Trust Company), as trustee, dated November 25, 1996, as amended by a third supplemental indenture dated as of July 23, 1999 and as amended by a fourth supplemental indenture dated as of June 12, 2000 and as may be supplemented by one or more additional supplemental indentures. The Senior Indenture and the Subordinated Indenture are sometimes referred to collectively as the "indentures." The trustees under the Senior Indenture and under the Subordinated Indenture are referred to herein as the "indenture trustees."

        In addition, as described under "Description of Depositary Shares," we may, at our option, offer depositary shares evidenced by depositary receipts, each representing a fractional interest in debt securities and deposited with a depositary. The fractional interest in the debt securities which each depositary share represents will be stated in the prospectus supplement relating to any debt securities offered through depositary shares.

3


Table of Contents

        Numerical references in parentheses below are to sections in the applicable indenture. Wherever we refer to particular sections or defined terms of an indenture, those sections or defined terms are incorporated by reference in this description as part of the statement made, and the statement is qualified in its entirety by such reference.

General

        The indentures provide that we may issue debt securities in separate series from time to time in an unlimited amount. We may specify a maximum aggregate principal amount for the debt securities of any series. (Section 301) The debt securities will have terms and provisions that are not inconsistent with the applicable indenture, including our determination as to maturity, principal and interest. Unless otherwise indicated in a prospectus supplement, the senior debt securities will be our unsecured obligations and will rank on a parity with all other unsecured and unsubordinated indebtedness. The subordinated debt securities will be our unsecured obligations, subordinated in right of payment to the prior payment in full of all our senior debt as described in the applicable prospectus supplement.

        Our assets consist primarily of the common stock of AIC and other subsidiaries, and we conduct no substantial business or operations of our own. We derive substantially all of our income from our operating subsidiaries. Accordingly, our cash flows and consequent ability to service our obligations, including our debt securities, are dependent upon the earnings of our subsidiaries, and distributions of those earnings to us, and other payments or distributions of funds by our subsidiaries to us.

        Except to the extent we or our creditors have a priority or equal claim as a creditor directly against our subsidiaries, payments due on the debt securities and any distribution of assets of any of our subsidiaries upon liquidation or reorganization effectively will be subordinated to the debt and preferred stock of the subsidiaries because, as the common stockholder of those subsidiaries, we will be subject to the prior claims of their creditors. Our debt securities effectively will also be subordinated to any of our secured indebtedness to the extent of any such security.

        If subordinated debt securities are issued to a trust in connection with the issuance of trust preferred securities, such subordinated debt securities may thereafter be distributed pro rata to the holders of such trust securities in connection with the dissolution of such trust upon the occurrence of certain events described in the applicable prospectus supplement.

        We will prepare a prospectus supplement for each series of debt securities that we issue. Each prospectus supplement will set forth the applicable terms of the debt securities to which it relates. These terms will include some or all of the following:

4


Table of Contents

5


Table of Contents

(Section 301)

        Debt securities, including original issue discount securities, may be sold at a substantial discount below their principal amount. Special United States federal income tax considerations applicable to debt securities sold at an original issue discount or which are denominated in a currency or currency unit other than United States dollars will be described in the applicable prospectus supplement.

Form, Exchange And Transfer

        The debt securities of a series shall be issued as registered securities, unless a supplemental indenture, as described in the applicable prospectus supplement, provides that debt securities of a series may be issued as bearer securities (with or without coupons attached) or as both registered securities and bearer securities. Debt securities may be issuable in the form of global debt securities, as described below under "Global Securities."

        Registered securities of any series will be exchangeable for other registered securities of the same series of any authorized denominations and of a like aggregate principal amount and tenor. If the supplemental indenture permits debt securities of any series to be issuable as both registered securities and as bearer securities, then at the option of the holder and subject to the terms of the applicable indenture, bearer securities of such series will be exchangeable for registered securities of the same series of any authorized denominations and of a like aggregate principal amount and tenor. Unless otherwise indicated in the applicable prospectus supplement, any bearer security surrendered in exchange for a registered security between a record date or a special record date for defaulted interest and the relevant date for payment of interest will be surrendered without the coupon relating to such date for payment of interest and interest represented by that coupon will not be payable in respect of the registered security issued in exchange for such bearer security, but will be payable only to the holder of such coupon when due in accordance with the terms of the applicable indenture. Bearer securities will not be issued in exchange for registered securities.

        No service charge will be made for any registration of transfer or exchange of debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. Such transfer or exchange will be effected upon the security registrar or such transfer agent, as the case may be, being satisfied with the documents of title and identity of the person making the request. We have appointed the applicable indenture trustee as security registrar. Any transfer agent (in addition to the security registrar) initially designated by us for any debt securities will be named in the applicable prospectus supplement. (Section 305)

        At any time, we may designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series. (Section 1002)

        In the event that we redeem in part debt securities of any series, we will not be required to:

(Section 305)

6


Table of Contents

Global Securities

        The debt securities of any series may be represented by global securities which will have an aggregate principal amount equal to that of the debt securities they represent. We will deposit the debt securities with, or on behalf of, a depositary identified in the prospectus supplement relating to such series. Each global security will bear a legend regarding the restrictions on exchanges and registration of transfer as may be provided by the indentures. The depositary shall at all times be a clearing agency registered under the Securities Exchange Act of 1934, as amended. (Section 101)

        No global security may be exchanged for debt securities registered, and no transfer of a global security may be registered, in the name of any person other than the depositary for such global security unless:

        All debt securities issued in exchange for a global security or any portion thereof will be registered in such names as the depositary may direct. (Section 305) The laws of some jurisdictions require that certain purchasers of debt securities take physical delivery of such debt securities in definitive form. Such laws may impair the ability to transfer beneficial interests in a global security.

        As long as the depositary, or its nominee, is the registered holder of a global security, the depositary or such nominee, will be considered the sole owner and holder of such global security and the debt securities represented by it. Except in the limited circumstances referred to above, owners of beneficial interests in a global security will not be entitled to have such global security or any debt securities represented thereby registered in their names, will not receive or be entitled to receive physical delivery of certificated debt securities in exchange therefor and will not be considered to be the owners or holders of such global security or any debt securities represented thereby for any purpose under the debt securities or the applicable indenture. All payments of principal, interest and premium on a global security will be made to the depositary or its nominee, as its holder.

        Ownership of beneficial interests in a global security will be limited to participants or to persons that may hold beneficial interests through institutions that have accounts with the depositary or its nominee. Ownership of beneficial interests in a global security will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by the depositary or any such participant. Payments, transfers, exchanges and other matters relating to beneficial interests in a global security may be subject to various policies and procedures adopted by the depositary from time to time. Neither Allstate, any indenture trustee or any agent of Allstate or of any indenture trustee will have any responsibility or liability for any aspect of the depositary or any participant's records relating to, or for payments made on account of, beneficial interests in a global security, or for maintaining, supervising or reviewing any of the depositary's records or any participant's records relating to such beneficial ownership interests.

Payment And Paying Agents

        Unless otherwise indicated in the applicable prospectus supplement, payment of interest on a debt security on any interest payment date will be made to the person in whose name such debt security is

7


Table of Contents


registered at the close of business on the record date for such interest, except in the case of defaulted interest. (Section 307)

        Unless otherwise indicated in the applicable prospectus supplement, principal, interest and premium on the debt securities of a particular series will be payable at the office of such paying agent or paying agents as we may designate for such purpose from time to time. Notwithstanding, at our option, payment of any interest may be made by check mailed to the address of the person entitled thereto as such address appears in the security register.

        Unless otherwise indicated in the applicable prospectus supplement, a paying agent designated by us and located in the Borough of Manhattan, The City of New York will act as paying agent for payments with respect to debt securities of each series. All paying agents initially designated by us for the debt securities of a particular series will be named in the applicable prospectus supplement. We may at any time designate additional paying agents or rescind the designation of any paying agent or approve a change in the office through which any paying agent acts, except that we will be required to maintain a paying agent in each place of payment for the debt securities of a particular series. (Section 1002)

        All moneys paid by us to a paying agent for the payment of the principal, interest or premium on any debt security which remain unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us upon request, and the holder of such debt security thereafter may look only to us for payment thereof. (Section 1003)

Conversion or Exchange

        We may convert or exchange the debt securities into our common stock or other securities. If so, we will describe the specific terms on which the debt securities may be converted or exchanged in the applicable prospectus supplement. The conversion or exchange may be mandatory, at your option, or at our option. The applicable prospectus supplement will describe the manner in which the shares of our common stock or other securities you would receive would be converted or exchanged.

Subordination of Subordinated Debt Securities

        Unless otherwise indicated in the prospectus supplement, the following provisions will apply to the subordinated debt securities.

        To the extent set forth in the Subordinated Indenture, the subordinated debt securities will be subordinate in right of payment to the prior payment in full of all senior indebtedness. (Section 1401 of the Subordinated Indenture) In the event of an insolvency, the holders of senior indebtedness shall be entitled to receive payment in full of all amounts due or to become due in respect of all senior indebtedness (or provisions shall be made for such payment in cash) before the holders of subordinated debt securities are entitled to receive any distribution on account of principal, interest or premium on subordinated debt securities. Consequently, the holders of senior indebtedness shall be entitled to receive all distributions of any kind which may be deliverable in respect of the subordinated debt securities in any insolvency, including any distribution which may be deliverable by reason of the payment of any of our other indebtedness being subordinated to the payment of subordinated debt securities. The holders of senior indebtedness shall apply such distributions to the payment of the senior indebtedness.

        "Insolvency" means any of the following events:

8


Table of Contents

        By reason of such subordination, in the event of liquidation or insolvency, our creditors may recover less, ratably, than holders of senior debt securities and may recover more, ratably, than the holders of the subordinated debt securities.

        In the event of the acceleration of the maturity of any subordinated debt securities, the holders of all senior debt securities outstanding at the time of such acceleration will first be entitled to receive payment in full of all amounts due on the senior debt securities before the holders of the subordinated debt securities will be entitled to receive any payment of principal, interest or premium on the subordinated debt securities. (Section 1404 of the Subordinated Indenture)

        No payment of principal, interest or premium on the subordinated debt securities is permitted if any of our senior indebtedness is not paid when due and any applicable grace period with respect to such default has ended and such default has not been cured or waived or ceased to exist, or if the maturity of any of our senior indebtedness has been accelerated because of a default. (Section 1402 of the Subordinated Indenture)

        The Subordinated Indenture does not limit or prohibit the issuance of additional senior debt securities, which may include indebtedness that is senior to the subordinated debt securities, but subordinate to our other obligations.

        The term "Senior Indebtedness" means, with respect to Allstate:

9


Table of Contents

Such senior indebtedness shall continue to be senior indebtedness and be entitled to the benefits of the subordination provisions irrespective of any amendment, modification or waiver of any term of such senior indebtedness. (Sections 101 and 1408 of the Subordinated Indenture)

        The prospectus supplement may further describe the provisions applicable to the subordination of the subordinated debt securities of a particular series.

Certain Covenants With Respect To Senior Debt Securities

        Limitation on Liens of Stock of AIC. The Senior Indenture prohibits us and our subsidiaries from directly or indirectly creating, assuming, incurring or permitting to exist any indebtedness secured by any lien on the capital stock of AIC unless the senior debt securities shall be secured equally and ratably with such indebtedness for at least the time period such indebtedness is so secured. (Section 1008 of the Senior Indenture)

        "Indebtedness" is defined in the Senior Indenture as the principal, premium and interest due on indebtedness of a person, whether outstanding on the date of such indenture or thereafter created, incurred or assumed, which is indebtedness for borrowed money, and any amendments, renewals, extensions, modifications and refundings of any such indebtedness. For purposes of this definition, "indebtedness for borrowed money" means:

        For purposes of this covenant only, indebtedness also includes any obligation of, or any obligation guaranteed by, any person for the payment of amounts due under a swap agreement or similar instrument or agreement, or under a foreign currency hedge exchange or similar instrument or agreement. (Sections 101 and 1008 of the Senior Indenture)

        Limitations on Disposition of Stock of AIC. Subject to limited exceptions, the Senior Indenture provides that as long as any senior debt securities are outstanding, we will not issue, sell, transfer or otherwise dispose of any shares of, securities convertible into, or warrants, rights or options to subscribe for or purchase shares of, capital stock of AIC, other than preferred stock having no voting rights of any kind, and that we will not permit AIC to issue any shares of, or securities convertible into, or warrants, rights or options to subscribe for or purchase shares of, capital stock of AIC, other than preferred stock having no voting rights of any kind if, after giving effect to any such transaction and the issuances of the maximum number of shares issuable upon the conversion or exercise of all such convertible securities, warrants, rights or options, we would own, directly or indirectly, less than 80% of the shares of AIC, other than preferred stock having no voting rights of any kind. The Senior Indenture also requires that any such issuance, sale, transfer or other disposition by AIC must be made for at least a fair market value consideration, as determined by our Board of Directors in good faith, and that the foregoing shall not prohibit any such issuance or disposition of securities if required by any law or any regulation or order of any governmental or insurance regulatory authority

10


Table of Contents

        Notwithstanding the foregoing, we may merge or consolidate AIC into or with another direct wholly owned subsidiary and we may, subject to the provisions set forth in "Consolidation, Merger and Sale of Assets" below, sell, transfer or otherwise dispose of the entire capital stock of AIC at one time for at least a fair market value consideration as determined by our Board of Directors in good faith. (Section 1009 of the Senior Indenture)

Certain Covenants with Respect to Subordinated Debt Securities

        If subordinated debt securities are issued to a trust in connection with the issuance of trust securities and there has occurred an event of default under the applicable declaration of trust, we are in default with respect to our payment of any obligations under the related preferred securities guarantee or common securities guarantee or we have given notice of our election to defer payments of interest on subordinated debt securities by extending the interest payment period as provided in the Subordinated Indenture, then we shall not:

        However, in such circumstances, we may:

(Section 1008 of the Subordinated Indenture)

        If subordinated debt securities are issued to a trust in connection with the issuance of trust securities, for so long as such securities remain outstanding, we covenant to:

11


Table of Contents

(Section 1009 of the Subordinated Indenture)

Consolidation, Merger and Sale of Assets

        Without the consent of the holders of any of the outstanding debt securities under the indentures, we may consolidate with or merge into, or convey, transfer or lease our properties and assets to any person and may permit any person to consolidate with or merge into us. However, in such event, any successor person must be a corporation, partnership, or trust organized and validly existing under the laws of any domestic jurisdiction and must assume our obligations on the debt securities and under the applicable indenture. We agree that after giving effect to the transaction, no event of default, and no event which, after notice or lapse of time or both, would become an event of default shall have occurred and be continuing and that certain other conditions are met; provided such provisions will not be applicable to the direct or indirect transfer of the stock, assets or liabilities of any of our subsidiaries to another of our direct or indirect subsidiaries. (Section 801)

        Except as provided in this prospectus or as may otherwise be provided in the accompanying prospectus supplement, there are no "event risks" or similar provisions of the indentures or the debt securities that are intended to afford protection to holders in the event of a merger or other significant corporate event involving us or our subsidiaries.

Outstanding Debt Securities

        "Outstanding," when used with respect to debt securities, means, as of the date of determination, all debt securities authenticated and delivered under the applicable indenture, except:

        Each indenture provides that in determining whether the holders of the requisite principal amount of the outstanding debt securities have given, made or taken any request, demand, authorization, direction, notice, consent, waiver or other action under the applicable indenture:

12


Table of Contents

        Debt securities so owned which have been pledged in good faith may be regarded as outstanding if the pledgee establishes to the satisfaction of the applicable indenture trustee the pledgee's right to act with respect to the debt securities and that the pledgee is not us or any other obligor upon the debt securities or any of our affiliates or of such other obligor. (Section 101)

Events of Default

        The following are events of default under the applicable indenture with respect to debt securities of any series:

(Section 501)

        Each indenture provides that if an event of default with respect to the debt securities of any series at the time outstanding shall occur and be continuing, either the indenture trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series may declare the principal amount of the debt securities of that series to be due and payable immediately. However, after such acceleration, but before a judgment or decree based on acceleration, the holders of a majority in aggregate principal amount of the outstanding debt securities of that series may, under

13


Table of Contents


certain circumstances, rescind and annul such acceleration if all events of default, other than the nonpayment of accelerated principal, have been cured or waived. (Section 502) For information as to waiver of defaults, see "Modification and Waiver."

        Subject to the provisions of the applicable indenture relating to the duties of the indenture trustee in case an event of default shall occur and be continuing, the indenture trustee will be under no obligation to exercise any of its rights or powers under the applicable indenture at the request or direction of any of the holders, unless such holders shall have offered to the indenture trustee reasonable indemnity. (Section 603) Subject to such provisions for the indemnification of the indenture trustee, the holders of a majority in aggregate principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the indenture trustee or exercising any trust or power conferred on the indenture trustee with respect to the debt securities of that series. (Section 512)

        No holder of a debt security of any series will have any right to institute any proceeding with respect to the applicable indenture, or for the appointment of a receiver or a trustee, or for any remedy thereunder, unless:

(Section 507)

        However, such limitations do not apply to a suit instituted by a holder of a debt security for the enforcement of payment of the principal, interest or premium on such debt security on or after the due dates expressed in the debt security. (Section 508)

        Annually, we are required to furnish to each indenture trustee a statement by certain of our officers as to whether we are in default in the performance or observance of any of the terms of the applicable indenture and, if so, specifying all such known defaults. (Section 1004)

Modification and Waiver

        We and the trustee under each indenture may, without the consent of the holders of the debt securities, amend, waive or supplement the indenture for specified purposes, including to:

14


Table of Contents

(Section 901)

        Each of the indentures provide that we and the applicable indenture trustee may modify and amend the applicable indenture with the consent of the holders of not less than a majority in principal amount of the outstanding debt securities of each series affected by such modification or amendment; provided, however, that no such modification or amendment may, without the consent of the holder of each outstanding debt security affected thereby:

(Section 902)

        The holders of a majority in principal amount of the outstanding debt securities of any series may waive compliance by us with certain restrictive provisions of the applicable indenture. (Section 1010 of the Senior Indenture and Section 1011 of the Subordinated Indenture) The holders of a majority in principal amount of the outstanding debt securities of any series may waive any past default under the applicable indenture, except a default in the payment of principal, premium or interest and certain covenants and provisions of the applicable indenture which cannot be amended without the consent of the holder of each outstanding debt security of such series affected. (Section 513)

        We will be entitled, except in certain limited circumstances, to set any day as a record date for the purpose of determining the holders of outstanding debt securities of any series entitled to give, make or take any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by the applicable indenture. To be effective, any such action for which we have set a record date must be taken by holders of the requisite principal amount of debt securities of the relevant series outstanding on such record date within 180 days after the record date, or within such shorter period as we may specify. (Section 104)

15


Table of Contents

Defeasance and Covenant Defeasance

        We may elect, at our option, to have the provisions of Section 1302, relating to defeasance and discharge of indebtedness, or Section 1303, relating to defeasance of certain covenants in the indentures, apply to the debt securities of any series, or to any specified part of a series. (Section 1301)

        Defeasance And Discharge. Each indenture provides that we may elect to be discharged from obligations with respect to any particular debt securities. Such discharge will take effect when we deposit in trust for the benefit of the holders of such debt securities money or U.S. government obligations, or both which, through the payment of principal and interest in respect thereof in accordance with their terms will provide money in an amount sufficient to pay the principal, interest and premium on such debt securities in accordance with their terms. However, such discharge shall not apply to our obligations to exchange or register the transfer of debt securities, to replace stolen, lost or mutilated debt securities, to maintain paying agencies and to hold moneys in trust. Such defeasance or discharge may occur only if, among other things, we have delivered to the indenture trustee an opinion of counsel stating that we have received from, or there has been published by, the United States Internal Revenue Service a ruling, or there has been a change in tax law, in either case to the effect that holders of the debt securities will not recognize gain or loss for federal income tax purposes as a result of such deposit, defeasance and discharge and will be subject to federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit, defeasance and discharge were not to occur. (Sections 1302 and 1304)

        Defeasance Of Certain Covenants. Each indenture provides that we may elect to defease certain covenants with respect to any particular debt securities. Such defeasance will take effect when we deposit, in trust for the benefit of the holders of such debt securities, money or U.S. government obligations, or both, which, through the payment of principal and interest in accordance with their terms, will provide money in an amount sufficient to pay the principal, interest and premium on such debt securities in accordance with their terms. Such defeasance may occur only if, among other things, we have delivered to the indenture trustee an opinion of counsel stating that holders of the debt securities will not recognize gain or loss for federal income tax purposes as a result of such deposit and defeasance and will be subject to federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit and defeasance were not to occur. In the event we exercise this option with respect to any debt securities and such debt securities are declared due and payable because of the occurrence of any event of default, the amount of money and U.S. government obligations so deposited in trust will be sufficient to pay amounts due on such debt securities at the time of their stated maturities but may not be sufficient to pay amounts due on the debt securities upon any acceleration resulting from such event of default. In such case, we will remain liable for such payments. (Sections 1303 and 1304)

Notices

        Notices to holders of debt securities will be given by mail to the addresses of such holders as they may appear in the security register. (Sections 101 and 106)

Title

        Allstate, the applicable indenture trustee and any agent of Allstate or the indenture trustee may treat the person in whose name a debt security is registered as the absolute owner for the purpose of making payment and for all other purposes. (Section 308)

Governing Law

        The indentures and the debt securities will be governed by, and construed in accordance with, the internal laws of the State of New York. (Section 112)

16


Table of Contents

Regarding the Indenture Trustee

        U.S. Bank National Association, which is the trustee under the indentures described in this prospectus, performs other services for us and our affiliates.


DESCRIPTION OF CAPITAL STOCK

        The following description of our capital stock is a summary. It summarizes only those aspects of our capital stock which we believe will be most important to your decision to invest in our capital stock. You should keep in mind, however, that it is our Restated Certificate of Incorporation, and our Amended and Restated Bylaws and the Delaware General Corporation Law, and not this summary, which define your rights as a securityholder. There may be other provisions in these documents which are also important to you. You should read these documents for a full description of the terms of our capital stock. Our Restated Certificate of Incorporation and our Amended and Restated Bylaws are incorporated by reference as exhibits to the Registration Statement that includes this prospectus. See "Where You Can Find More Information" for information on how to obtain copies of these documents.

        Our Restated Certificate of Incorporation authorizes us to issue 2,000,000,000 shares of common stock, par value of $0.01 per share, and 25,000,000 shares of preferred stock, par value $1.00 per share. As of May 1, 2009, there were 536,363,853 shares of common stock outstanding and we had no preferred stock issued or outstanding.

        The particular terms of the common stock or preferred stock offered by any prospectus supplement and the extent to which the general provisions described below may apply to such common stock or preferred stock will be outlined in the applicable prospectus supplement.

Common Stock

        Outstanding shares of our common stock are listed on the New York Stock Exchange and the Chicago Stock Exchange under the symbol "ALL." All outstanding shares of common stock are, and the shares of common stock issued under this prospectus, will be, fully paid and non-assessable.

        Dividends. Subject to the prior rights of the holders of shares of preferred stock that may be issued and outstanding, none of which are currently outstanding, the holders of common stock are entitled to receive dividends as and when declared by our Board of Directors. The issuance of dividends will depend upon, among other factors deemed relevant by our Board of Directors, our financial condition, results of operations, cash requirements, future prospects, changes in tax or other applicable laws relating to the treatment of dividends and regulatory restrictions on the payment of dividends that apply under applicable insurance laws. Dividends may be paid in cash, stock or other form. Each such dividend shall be payable to holders of record as they appear on our stock books on such record dates as shall be fixed by the Board of Directors.

        Voting Rights. Each holder of common stock is entitled to one vote for each share held of record on all matters presented to a vote at a stockholders meeting, including the election of directors. The holders of common stock are not entitled to cumulative voting rights. Directors are elected at a stockholders' meeting at which a quorum is present if they receive a majority of the votes present in person or represented by proxy. Except as otherwise provided in our Restated Certificate of Incorporation or Amended and Restated Bylaws or as required by law, all other matters can be approved by the affirmative vote of a majority of the shares represented at a meeting and entitled to vote on the matter.

        Liquidation Rights. In the event of any liquidation, dissolution or winding-up of Allstate, the holders of common stock will share equally in the assets remaining after creditors and preferred stockholders are paid.

17


Table of Contents

        Other Rights. The holders of common stock have no preemptive rights to purchase or subscribe for any additional shares of common stock or other securities and there are no conversion rights or redemption or sinking fund provisions with respect to the common stock.

Preferred Stock

        We are authorized to issue up to 25,000,000 shares of preferred stock, none of which is currently issued and outstanding. Our Board of Directors is authorized to provide for the issuance of the preferred stock in a series, to establish or change the number of shares to be included in each series and to fix the designation, relative rights, preferences and limitations of each series, subject to such limitations as may be prescribed by law. In particular, our Board of Directors is authorized, without limitation, to determine the number of shares, the designation of the series, the dividend rate, voting rights, conversion and exchange rights, redemption provisions, liquidation rights and sinking fund provisions, all without further action by our stockholders. The rights of holders of the preferred stock offered may be adversely affected by the rights of holders of any shares of preferred stock that may be issued in the future. Our Board of Directors may cause shares of preferred stock to be issued in public or private transactions for any proper corporate purpose. Examples of proper corporate purposes include issuances to obtain additional financing in connection with acquisitions or otherwise, and issuances to officers, directors and employees of Allstate and its subsidiaries pursuant to benefit plans or otherwise. Shares of preferred stock issued by us may have the effect of rendering more difficult or discouraging an acquisition of Allstate deemed undesirable by our Board of Directors.

        We will describe the terms, if any, on which shares of any series of preferred stock are convertible or exchangeable into our common stock or other securities in the prospectus supplement relating to the offering. The conversion or exchange may be mandatory, at your option or at our option. The applicable prospectus supplement will state the manner in which the shares of our common stock or other securities that you will receive as a holder of preferred stock would be converted or exchanged.

        The preferred stock will be fully paid and non-assessable. Unless otherwise indicated in an applicable prospectus supplement, holders of preferred stock will not have preemptive or subscription rights to acquire more of our stock. Unless otherwise indicated in an applicable prospectus supplement, the preferred stock will have preference over our common stock with respect to the payment of dividends and the distribution of assets in the event of a liquidation, winding-up or dissolution of Allstate. Unless otherwise indicated in an applicable prospectus supplement, each series of preferred stock will rank on a parity with each other series of preferred stock.

        In addition, as described under "Description of Depositary Shares," we may, at our option, instead of offering whole individual shares of any series of preferred stock, offer depositary shares evidenced by depositary receipts, each representing a fraction of a share or some multiple of shares of the particular series of preferred stock issued and deposited with a depositary. The fraction of a share of preferred stock which each depositary share represents will be stated in the prospectus supplement relating to any series of preferred stock offered through depositary shares.

        Dividends. Holders of shares of the preferred stock of each series shall be entitled to receive, as and when declared by our Board of Directors, cash or other dividends at such rates and on such dates as will be set forth in the applicable prospectus supplement. Each such dividend shall be payable to holders of record as they appear on our stock books or, if applicable, the records of the depositary referred to below under "Description of Depositary Shares," on such record dates as shall be fixed by the Board of Directors.

        Dividends on any series of the preferred stock may be cumulative or noncumulative, as provided in the applicable prospectus supplement. If our Board of Directors fails to declare a dividend payable on a dividend payment date on any series of the preferred stock for which dividends are noncumulative, then the holders of such series of the preferred stock will have no right to receive a dividend in respect

18


Table of Contents


of the dividend period ending on such dividend payment date, and we will have no obligation to pay the dividend accrued for such period, whether or not dividends on such series are declared payable on any future dividend payment date.

        Liquidation Rights. In the event of any liquidation, dissolution or winding-up of Allstate, the holders of preferred stock will be entitled to receive out of our assets, before any distribution of assets is made to holders of common stock, liquidating distributions in the amount of the liquidation price per share, as set forth in the applicable prospectus supplement, plus all accrued and unpaid dividends. If, upon any liquidation, dissolution or winding-up of Allstate, the amounts payable with respect to the preferred stock and any other shares of our stock ranking as to any such distribution on a parity with the preferred stock are not paid in full, the holders of the preferred stock and of such other shares will share ratably in any such distribution of our assets in proportion to the full respective preferential amounts to which they are entitled. After payment of the full amount of the liquidating distribution the holders of preferred stock will not be entitled to any further participation in any distribution of assets by us. A consolidation or merger of Allstate with or into any other corporation or corporations or a sale of all or substantially all of the assets of Allstate shall not be deemed to be a liquidation, dissolution or winding-up of Allstate.

        Redemption. The preferred stock will be redeemable at the times and at the redemption prices set forth in the applicable prospectus supplement.

        Unless otherwise indicated in the applicable prospectus supplement, we may not purchase or redeem any of the outstanding shares of any series of preferred stock unless full cumulative dividends, if any, have been paid or declared and set apart for payment upon all outstanding shares of any series of preferred stock for all past dividend periods, and unless all of our matured obligations with respect to all sinking funds, retirement funds or purchase funds for all series of preferred stock then outstanding have been met.

        Voting Rights. The holders of the preferred stock will have no voting rights, except:

Provisions of Our Restated Certificate of Incorporation and Amended and Restated Bylaws that May Delay or Make More Difficult Unsolicited Acquisitions or Changes of Our Control

        Some provisions of our Restated Certificate of Incorporation and Amended and Restated Bylaws may delay or make more difficult unsolicited acquisitions or changes of our control. We believe that these provisions will enable us to develop our business in a manner that will foster long-term growth without disruption caused by the threat of a takeover not thought by our Board of Directors to be in the best interests of Allstate and its stockholders.

        Those provisions could have the effect of discouraging third parties from making proposals involving an unsolicited acquisition or change of control of our company, although the proposals, if made, might be considered desirable by a majority of our stockholders. Those provisions may also have the effect of making it more difficult for third parties to cause the replacement of our current management without the concurrence of our Board of Directors.

        These provisions include:

19


Table of Contents

        In addition, we are subject to the provisions of Section 203 of the Delaware General Corporation Law. Generally, Section 203 prohibits a publicly held Delaware corporation from engaging in a "business combination" with an "interested stockholder" during the three years after the date the person became an interested stockholder, unless the business combination is approved in a prescribed manner. A "business combination" includes a merger, asset sale or a transaction resulting in a financial benefit to the interested stockholder. An "interested stockholder" is a person, who together with affiliates and associates, owns (or, in certain cases, within the preceding three years, did own) 15% or more of the corporation's outstanding voting stock. Under Section 203, a business combination between us and an interested stockholder is prohibited unless it satisfies one of the following conditions:

Limitations on Liability

        Our Restated Certificate of Incorporation limits our directors' liability to the fullest extent permitted by law. Generally, our directors will not be held liable for their actions. However, they will be held liable for:

        Because of these limitations on liability, our stockholders may not sue one of our directors for money unless the stockholder can show the director committed one of the offenses listed above. These provisions do not affect our directors' liability under federal securities laws. Also, our directors still have a duty of care. The limitation of our directors' liability may discourage or deter stockholders or management from suing directors for a breach of their duties, even though such an action, if successful, might otherwise have benefited us or our stockholders. This limitation on our directors' liability should not affect the availability of equitable remedies such as injunctions or rescissions based upon a director's breach of his duty of care.

20


Table of Contents


DESCRIPTION OF DEPOSITARY SHARES

        The following description of the depositary shares and the terms of the deposit agreement is a summary. It summarizes only those aspects of the depositary shares and those portions of the deposit agreement that we believe will be most important to your decision to invest in our depositary shares. You should keep in mind, however, that it is the deposit agreement, and not this summary, which defines your rights as a holder of depositary shares. There may be other provisions in the deposit agreement that are also important to you. You should read the deposit agreement for a full description of the terms of the depositary shares. The form of the deposit agreement is filed as an exhibit to the Registration Statement that includes this prospectus. See "Where You Can Find More Information" for information on how to obtain a copy of the deposit agreement.

        The particular terms of the depositary shares offered by any prospectus supplement and the extent to which the general provisions described below may apply to such depositary shares will be outlined in the applicable prospectus supplement.

General

        We may choose to offer fractional interests in debt securities or fractional shares of our common stock or preferred stock. If we decide to do so, we will issue fractional interests in debt securities, or fractional shares of our common stock or preferred stock, as the case may be, in the form of depositary shares. Each depositary share would represent a fractional interest in a security of a particular series of debt securities or a fraction of a share of common stock or of a particular series of preferred stock, as the case may be, and would be evidenced by a depositary receipt.

        We will deposit the debt securities or shares of common stock or preferred stock represented by depositary shares under a deposit agreement between us and a depositary which we will name in the applicable prospectus supplement. Subject to the terms of the deposit agreement, as an owner of a depositary share you will be entitled, in proportion to the applicable fraction of a debt security or share of common stock or preferred stock represented by the depositary share, to all the rights and preferences of the debt security, common stock or preferred stock, as the case may be, represented by the depositary share, including, as the case may be, interest, dividend, voting, conversion, redemption, sinking fund, repayment at maturity, subscription and liquidation rights.

Interest, Dividends and Other Distributions

        The depositary will distribute all payments of interest, cash dividends or other cash distributions received on the debt securities or preferred stock, as the case may be, to you in proportion to the number of depositary shares that you own.

        In the event of a distribution other than in cash, the depositary will distribute property received by it to you in an equitable manner, unless the depositary determines that it is not feasible to make a distribution. In that case, the depositary may sell the property and distribute the net proceeds from the sale to you.

Redemption of Depositary Shares

        If we redeem a debt security, common stock or series of preferred stock represented by depositary shares, the depositary will redeem your depositary shares from the proceeds received by the depositary resulting from the redemption. The redemption price per depositary share will be equal to the applicable fraction of the redemption price per debt security or share of common stock or preferred stock, as the case may be, payable in relation to the redeemed series of debt securities, common stock or preferred stock. Whenever we redeem debt securities or shares of common stock or preferred stock held by the depositary, the depositary will redeem as of the same redemption date the number of

21


Table of Contents


depositary shares representing, as the case may be, fractional interests in the debt securities or shares of common stock or preferred stock redeemed. If fewer than all the depositary shares are to be redeemed, the depositary shares to be redeemed will be selected by lot, proportionately or by any other equitable method as the depositary may determine.

Exercise of Rights under the Indentures or Voting the Common Stock or Preferred Stock

        Upon receipt of notice of any meeting at which you are entitled to vote, or of any request for instructions or directions from you as a holder of fractional interests in debt securities, common stock or preferred stock, the depositary will mail to you the information contained in that notice. Each record holder of the depositary shares on the record date will be entitled to instruct the depositary how to give instructions or directions with respect to the debt securities represented by that holder's depositary shares or how to vote the amount of the common stock or preferred stock represented by that holder's depositary shares. The record date for the depositary shares will be the same date as the record date for the debt securities, common stock or preferred stock, as the case may be. The depositary will endeavor, to the extent practicable, to give instructions or directions with respect to the debt securities or to vote the amount of the common stock or preferred stock, as the case may be, represented by the depositary shares in accordance with those instructions. We will agree to take all reasonable action which the depositary may deem necessary to enable the depositary to do so. The depositary will abstain from giving instructions or directions with respect to your fractional interests in the debt securities or voting shares of the common stock or preferred stock, as the case may be, if it does not receive specific instructions from you.

Amendment and Termination of the Deposit Agreement

        We and the depositary may amend the form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement at any time. However, any amendment which materially and adversely alters the rights of the holders of the depositary shares will not be effective unless the amendment has been approved by the holders of at least a majority of the depositary shares then outstanding.

        The deposit agreement will terminate if:

Resignation and Removal of Depositary

        The depositary may resign at any time by delivering to us notice of its election to do so. We also may, at any time, remove the depositary. Any resignation or removal will take effect upon the appointment of a successor depositary and its acceptance of such appointment. We must appoint the successor depositary within 60 days after delivery of the notice of resignation or removal. The successor depositary must be a bank or trust company having its principal office in the United States and having a combined capital and surplus of at least $50,000,000.

22


Table of Contents

Charges of Depositary

        We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangements. We will pay charges of the depositary in connection with the initial deposit of the debt securities, common stock or preferred stock, as the case may be, and issuance of depositary receipts, all withdrawals of depositary shares of debt securities, common stock or preferred stock, as the case may be, by you and any repayment or redemption of the debt securities, common stock or preferred stock, as the case may be. You will pay other transfer and other taxes and governmental charges, as well as the other charges that are expressly provided in the deposit agreement to be for your account.

Miscellaneous

        The depositary will forward all reports and communications from us which are delivered to the depositary and which we are required or otherwise determine to furnish to holders of debt securities, common stock or preferred stock, as the case may be.

        Neither we nor the depositary will be liable under the deposit agreement to you other than for its gross negligence, willful misconduct or bad faith. Neither we nor the depositary will be obligated to prosecute or defend any legal proceedings relating to any depositary shares, debt securities, common stock or preferred stock unless satisfactory indemnity is furnished. We and the depositary may rely upon written advice of counsel or accountants, or upon information provided by persons presenting debt securities or shares of common stock or preferred stock for deposit, you or other persons believed to be competent and on documents which we and the depositary believe to be genuine.


DESCRIPTION OF WARRANTS

        The following description of the warrants and terms of the warrant agreement is a summary. It summarizes only those aspects of the warrants and those portions of the warrant agreement which we believe will be most important to your decision to invest in our warrants. You should keep in mind, however, that it is the warrant agreement and the warrant certificate relating to the warrants, and not this summary, which defines your rights as a warrantholder. There may be other provisions in the warrant agreement and the warrant certificate relating to the warrants which are also important to you. You should read these documents for a full description of the terms of the warrants. Forms of these documents are filed as exhibits to the Registration Statement that includes this prospectus. See "Where You Can Find More Information" for information on how to obtain copies of these documents.

        We may issue warrants for the purchase of our debt securities, preferred stock or common stock or units of two or more of these types of securities. Warrants may be issued independently or together with debt securities, preferred stock or common stock and may be attached to or separate from these securities. Each series of warrants will be issued under a separate warrant agreement that we will describe in the prospectus supplement relating to the warrants that we offer.

Debt Warrants

        We will describe in the applicable prospectus supplement the terms of warrants to purchase debt securities that we may offer, the warrant agreement relating to the debt warrants and the warrant certificates representing the debt warrants. These terms will include the following:

23


Table of Contents

        We will also describe in the applicable prospectus supplement any provisions for a change in the exercise price or the expiration date of the debt warrants and the kind, frequency and timing of any notice to be given. You may exchange debt warrant certificates for new debt warrant certificates of different denominations and may exercise debt warrants at the corporate trust office of the warrant agent or any other office that we indicate in the applicable prospectus supplement.

Other Warrants

        We may issue other warrants. We will describe in the applicable prospectus supplement the following terms of those warrants:

24


Table of Contents

        We will also describe in the applicable prospectus supplement any provisions for a change in the exercise price or the expiration date of the warrants and the kind, frequency and timing of any notice to be given. You may exchange warrant certificates for new warrant certificates of different denominations and may exercise warrants at the corporate trust office of the warrant agent or any other office that we indicate in the applicable prospectus supplement.

Exercise of Warrants

        Each warrant will entitle the holder to purchase the principal amount of debt securities or other securities, including shares of preferred stock or common stock, at the exercise price as shall in each case be set forth in, or be determinable as set forth in the prospectus supplement relating to the warrants offered in the applicable prospectus supplement. Warrants may be exercised at any time up to the close of business on the expiration date set forth in the applicable prospectus supplement. After the close of business of the expiration date, unexercised warrants will become void.

        Upon receipt of payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will, as soon as practicable, forward the debt securities or other securities, including shares of preferred stock or common stock, to be purchased upon such exercise. If less than all of the warrants represented by a warrant certificate are exercised, a new warrant certificate will be issued for the remaining warrants.

        Prior to the exercise of any warrants to purchase debt securities or other securities, including shares of preferred stock or common stock, holders of the warrants will not have any of the rights of holders of the debt securities or other securities, including shares of preferred stock or common stock purchasable upon exercise, including:

25


Table of Contents


DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS

        We may issue stock purchase contracts, including contracts obligating you to purchase from us, and us to sell to you, a specified number of shares of common stock, shares of preferred stock or other property at a future date or dates. The consideration per share of common stock or preferred stock and the number of shares of each may be fixed at the time the stock purchase contracts are issued or may be determined by reference to a specific formula set forth in the stock purchase contracts. The stock purchase contracts may be issued separately or as part of units, often known as stock purchase units, consisting of a stock purchase contract and any combination of:

which may secure your obligations to purchase the common stock, preferred stock or other property under the stock purchase contracts. The stock purchase contracts may require us to make periodic payments to you or vice versa, and these payments may be unsecured or prefunded on some basis. The stock purchase contracts may require you to secure your obligations in a specified manner.

        The applicable prospectus supplement will describe the terms of the stock purchase contracts and stock purchase units, including, if applicable, collateral or depositary arrangements.


DESCRIPTION OF TRUST PREFERRED SECURITIES

        The following description of the trust preferred securities and the form of declaration of trust is a summary. It summarizes only those aspects of the trust preferred securities and portions of the form of declaration of trust which we believe will be most important to your decision to invest in the trust preferred securities. You should keep in mind, however, that it is the declaration of trust, and not this summary, which defines your rights as a holder. There may be other provisions in the declaration of trust which are also important to you. You should read the form of declaration of trust itself for a full description of the terms of the preferred securities. The form of declaration of trust is filed as an exhibit to the Registration Statement. See "Where You Can Find More Information" for information on how to obtain a copy of the declaration of trust.

        The trust preferred securities may be issued from time to time in one or more series. The particular terms of the trust preferred securities offered by any prospectus supplement and the extent to which the general provisions described below may apply to such securities will be outlined in the applicable prospectus supplement.

        Each trust may issue, from time to time, only one series of preferred securities. The trust preferred securities will represent preferred undivided beneficial interests in the assets of the related trust. Each of the trusts is a legally separate entity and the assets of one are not available to satisfy the obligations of any of the others. The declaration of trust for each trust will be qualified as an indenture under the Trust Indenture Act. The trust preferred securities will have such terms, including distributions,

26


Table of Contents


redemption, voting, liquidation and such other preferred, deferred or other special rights or such restrictions as shall be set forth in the declaration or made part of the declaration by the Trust Indenture Act, and which will mirror the terms of the subordinated debt securities held by the trust and described in the applicable prospectus supplement.

        Reference is made to the prospectus supplement relating to the preferred securities of any trust for specific terms, including:

        We will guarantee all trust preferred securities offered hereby to the extent set forth below under "Description of Preferred Securities Guarantees." Certain United States federal income tax considerations applicable to any offering of trust preferred securities will be described in the applicable prospectus supplement.

        In connection with the issuance of trust preferred securities, each trust will issue one series of common securities having such terms including distributions, redemption, voting and liquidation rights or such restrictions as shall be set forth in its declaration. The terms of the common securities will be substantially similar to the terms of the trust preferred securities issued by such trust and the common securities will rank equal with, and payments will be made thereon pro rata, with the trust preferred securities except that, upon an event of default under the declaration, the rights of the holders of the common securities to payment in respect of distributions and payments upon liquidation, redemption and otherwise will be subordinated to the rights of the holders of the trust preferred securities. Except in certain limited circumstances, the common securities will carry the right to vote to appoint, remove or replace any of the trustees of a trust. Directly or indirectly, we will own all of the common securities of each trust.

27


Table of Contents

Enforcement Of Certain Rights By Holders Of Preferred Securities

        If an event of default under the declaration of a trust occurs and is continuing, then the holders of trust preferred securities of such trust would rely on the enforcement by the property trustee of its rights as a holder of the applicable series of subordinated debt securities against us. In addition, the holders of a majority in liquidation amount of the trust preferred securities of such trust will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the property trustee or to direct the exercise of any trust or power conferred upon the property trustee to exercise the remedies available to it as a holder of the subordinated debt securities. If the property trustee fails to enforce its rights under the applicable series of subordinated debt securities, a holder of trust preferred securities of such trust may institute a legal proceeding directly against us to enforce the property trustee's rights under the applicable series of subordinated debt securities without first instituting any legal proceeding against the property trustee or any other person or entity.

        Notwithstanding, if an event of default under the applicable declaration has occurred and is continuing and such event is attributable to our failure to pay principal or interest on the applicable series of subordinated debt securities on the date such principal or interest is otherwise payable or in the case of redemption, on the redemption date, then a holder of trust preferred securities of such trust may directly institute a proceeding for enforcement of payment to such holder of the principal or interest on the applicable series of subordinated debt securities having a principal amount equal to the aggregate liquidation amount of the trust preferred securities of such holder on or after the respective due date specified in the applicable series of subordinated debt securities. In connection with such direct action, we will be subrogated to the rights of such holder of trust preferred securities under the applicable declaration to the extent of any payment made by us to such holder of trust preferred securities in such direct action.


DESCRIPTION OF PREFERRED SECURITIES GUARANTEES

        The following description of the terms of the preferred securities guarantee is a summary. It summarizes only those portions of the preferred securities guarantee which we believe will be most important to your decision to invest in the trust preferred securities. You should keep in mind, however, that it is the preferred securities guarantee, and not this summary, which defines your rights. There may be other provisions in the preferred securities guarantee which are also important to you. You should read the preferred securities guarantee itself for a full description of its terms. The preferred securities guarantee is filed as an exhibit to the Registration Statement that includes this prospectus. See "Where You Can Find More Information" for information on how to obtain a copy of the preferred securities guarantee. When we refer in this summary to trust preferred securities, we mean the trust preferred securities issued by a trust to which the preferred securities guarantee relates.

        At the same time as the issuance by a trust of its preferred securities, we will execute and deliver a preferred securities guarantee for your benefit, as a holder of the trust preferred securities. Each preferred securities guarantee will be qualified as an indenture under the Trust Indenture Act. U.S. Bank National Association will act as the independent preferred guarantee trustee under each preferred securities guarantee for purposes of compliance with the Trust Indenture Act. The terms of each preferred securities guarantee will be those set forth in such preferred securities guarantee. Each preferred securities guarantee will be held by the preferred guarantee trustee for the benefit of the holders of the trust preferred securities of the applicable trust.

General

        Pursuant to each preferred securities guarantee, we will agree to pay in full on a subordinated basis, to the holders of the trust preferred securities issued by a trust, the following guarantee payments, except to the extent paid by such trust, as and when due, regardless of any defense, right of

28


Table of Contents


set-off or counterclaim which such trust may have or assert. The following payments with respect to trust preferred securities, to the extent not paid by such trust, will be subject to the preferred securities guarantee:

        Our obligation to make a guarantee payment may be satisfied by direct payment of the required amounts by us to the holders of trust preferred securities or by causing the applicable trust to pay such amounts to such holders.

        The preferred securities guarantees will be guarantees on a subordinated basis of the related trust obligations under the preferred securities, but will apply only to the extent that the related trust has funds sufficient to make the payments. The preferred securities guarantees will constitute a guarantee of payment and not of collection. If we do not make interest payments on the corresponding subordinated debt securities held by the trust, we expect that the trust will not pay distributions on the preferred securities and will not have funds legally available for those payments.

        The preferred securities guarantee, when taken together with our obligations under the subordinated debt securities, the Subordinated Indenture and the declaration of trust, including our obligations to pay costs, expenses, debts and liabilities of such trust other than with respect to the trust securities, will provide a full and unconditional guarantee on a subordinated basis by us of payments due on the trust preferred securities.

        We have also agreed separately to irrevocably and unconditionally guarantee the obligations of the trusts with respect to the common securities (our common securities guarantee) to the same extent as the preferred securities guarantee, except that upon an event of default under the Subordinated Indenture, holders of trust preferred securities shall have priority over holders of common securities with respect to distributions and payments on liquidation, redemption or otherwise.

Status of the Preferred Securities Guarantees

        Unless otherwise indicated in an applicable prospectus supplement, the preferred securities guarantees will constitute our unsecured obligations and will rank:

29


Table of Contents

The terms of the trust preferred securities provide that each holder agrees to the subordination provisions and other terms of the preferred securities guarantee.

        The preferred securities guarantees will constitute a guarantee of payment and not of collection; that is, the guaranteed party may institute a legal proceeding directly against the guarantor to enforce its rights under the guarantee without instituting a legal proceeding against any other person or entity.

Certain Covenants of Allstate

        In each preferred securities guarantee, we will covenant that, so long as any trust preferred securities issued by the applicable trust remain outstanding, if there shall have occurred any event that would constitute an event of default under such preferred securities guarantee or the declaration of such trust, then, unless otherwise set forth in an applicable prospectus supplement, we shall not:

        However, in such circumstances we may:

Modification of the Preferred Securities Guarantees; Assignment

        Each preferred securities guarantee may be amended only with the prior approval of the holders of not less than a majority in liquidation amount of the outstanding trust preferred securities issued by the applicable trust except with respect to any changes which do not adversely affect the rights of holders of trust preferred securities in which case no vote will be required. The manner of obtaining any such approval of holders of such trust preferred securities will be as set forth in the applicable prospectus supplement. All guarantees and agreements contained in a preferred securities guarantee shall bind our successors, assigns, receivers, trustees and representatives and shall inure to the benefit of the holders of the trust preferred securities of the applicable trust then outstanding.

Termination

        Each preferred securities guarantee will terminate as to the trust preferred securities issued by the applicable trust:

30


Table of Contents

        Each preferred securities guarantee will continue to be effective or will be reinstated, as the case may be, if at any time any holder of trust preferred securities issued by the applicable trust must restore payment of any sums paid under such trust preferred securities or such preferred securities guarantee.

        The subordination provisions of the subordinated debt securities provide that in the event payment is made on the subordinated debt securities or the preferred securities guarantee in contravention of such provisions, such payments shall be paid over to the holders of senior indebtedness.

Events of Default

        An event of default under a preferred securities guarantee will occur upon our failure to perform any of our obligations thereunder.

        The holders of a majority in liquidation amount of the trust preferred securities relating to such preferred securities guarantee have the right to direct the time, method and place of conducting any proceeding for any remedy available to the preferred guarantee trustee in respect of the guarantee or to direct the exercise of any trust or power conferred upon the preferred guarantee trustee under such trust preferred securities. If the preferred guarantee trustee fails to enforce such preferred securities guarantee, any holder of trust preferred securities relating to such guarantee may institute a legal proceeding directly against us to enforce the preferred guarantee trustee's rights under such guarantee, without first instituting a legal proceeding against the relevant trust, the guarantee or any other person or entity. Notwithstanding, if we fail to make a guarantee payment, a holder of trust preferred securities may directly institute a proceeding against us for enforcement of the preferred securities guarantee for such payment. We waive any right or remedy to require that any action be brought first against such trust or any other person or entity before proceeding directly against us.

Information Concerning the Preferred Guarantee Trustee

        The preferred guarantee trustee, before the occurrence of a default with respect to a preferred securities guarantee, undertakes to perform only such duties as are specifically set forth in such preferred securities guarantee and, after default, shall exercise the same degree of care as a prudent individual would exercise in the conduct of his or her own affairs. The preferred guarantee trustee is under no obligation to exercise any of the powers vested in it by a preferred securities guarantee at the request of any holder of preferred securities, unless offered reasonable indemnity against the costs, expenses and liabilities which might be incurred.

Governing Law

        The preferred securities guarantees will be governed by and construed in accordance with the internal laws of the State of New York.

31


Table of Contents


PLAN OF DISTRIBUTION

        We may sell any series of debt securities, common stock, preferred stock, depository shares, warrants, stock purchase contracts and stock purchase units and the trusts may sell the trust preferred securities being offered directly to one or more purchasers, through agents, to or through underwriters or dealers, or through a combination of any such methods of sale. The distribution of the securities may be effected from time to time in one or more transactions at fixed prices, which may be changed, at market prices prevailing at the time of sale, at prices related to such prevailing market prices or at negotiated prices. The prospectus supplement will set forth the terms of the offering, including the names of any underwriters, dealers or agents, the purchase price of such securities and the proceeds to us and/or a trust from such sale, any underwriting discounts and commissions or agency fees and other items constituting underwriters' or agents' compensation, any initial public offering price and any discounts or concessions allowed or paid to dealers or any securities exchange on which such securities may be listed. Any initial public offering price, discounts or concessions allowed or paid to dealers may be changed from time to time.

        Any discounts, concessions or commissions received by underwriters or agents and any profits on the resale of securities by them may be deemed to be underwriting discounts and commissions under the Securities Act of 1933. Unless otherwise set forth in the applicable prospectus supplement, the obligations of underwriters to purchase the offered securities will be subject to certain conditions precedent, and such underwriters will be obligated to purchase all such securities, if any are purchased. Unless otherwise indicated in the applicable prospectus supplement, any agent will be acting on a best efforts basis for the period of its appointment.

        We, along with the trusts, may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or the trusts, as applicable, or borrowed from us or the trusts, as applicable, or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us or the trusts, as applicable, in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be identified in the applicable prospectus supplement (or a post-effective amendment).

        We, along with the trusts, may also offer and sell securities, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more firms referred to as remarketing firms, acting as principals for their own accounts or as agents for us or one of the trusts. Any remarketing firm will be identified and the terms of its agreement, if any, with us or one of the trusts, and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters under the Securities Act of 1933 in connection with the securities they remarket.

        We may authorize underwriters, dealers or other persons acting as agents for us or one of the trusts to solicit offers by certain institutions to purchase securities from us or one of the trusts, pursuant to contracts providing for payment and delivery on a future date. Institutions with which such contracts may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and others, but in all cases such institutions must be approved by us or one of the trusts. The obligations of any purchaser under any such contract will be subject to the conditions that the purchase of the offered securities shall not at the time of delivery be prohibited under the laws of the jurisdiction to which such purchaser is subject.

32


Table of Contents


The underwriters and such other agents will not have any responsibility in respect of the validity or performance of such contracts.

        In connection with the offering of securities, we or any trust, may grant to the underwriters an option to purchase additional securities to cover over-allotments at the initial public offering price, with an additional underwriting commission, as may be set forth in the accompanying prospectus supplement. If we or any trust grants any over-allotment option, the terms of such over-allotment option will be set forth in the prospectus supplement for such securities.

        The securities may be a new issue of securities that have no established trading market. Any underwriters to whom securities are sold for public offering and sale may make a market in such securities, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice. Such securities may or may not be listed on a national securities exchange. No assurance can be given as to the liquidity of or the existence of trading markets for any securities.

        We and the trusts may indemnify agents, underwriters, dealers and remarketing firms against certain liabilities, including liabilities under the Securities Act of 1933. Our agents, underwriters, dealers and remarketing firms, or their affiliates, may be customers of, engage in transactions with or perform services for us, in the ordinary course of business.


WHERE YOU CAN FIND MORE INFORMATION

        We and the trusts have filed a registration statement on Form S-3 with the Securities and Exchange Commission to register the securities covered by this prospectus. This prospectus forms a part of that registration statement and does not contain all of the information in the registration statement or the exhibits to the registration statement.

        We are subject to the informational requirements of the Securities Exchange Act of 1934. Accordingly, we file annual, quarterly and special reports, proxy statements and other information with the Securities and Exchange Commission. You may review a copy of those reports, statements or other information at the Securities and Exchange Commission's public reference room, which is located at Room 1580, 100 F Street, N.E., Washington, D.C. 20549. You can also request copies of such documents, upon payment of a duplicating fee, by writing to the SEC's public reference room. Please call the Securities and Exchange Commission at 1-800-SEC-0330 for further information on the public reference room.

        These Securities and Exchange Commission filings are also available to the public from commercial document retrieval services and at the Internet site maintained by the Securities and Exchange Commission at "http://www.sec.gov." Reports, proxy statements and other information concerning us may also be inspected at the offices of the New York Stock Exchange at 20 Broad Street, New York, New York 10005.

        We have not included any separate financial statements for the trusts. They were omitted because the trusts are our wholly owned subsidiaries, with no independent operations and we guarantee the fee obligations relating to the trust securities.

        The Securities and Exchange Commission allows us to "incorporate by reference" information into this prospectus, which means that we can disclose important information to you by referring you to other documents filed separately with the Securities and Exchange Commission. The information incorporated by reference is considered to be part of this prospectus. Any statement made in this prospectus or a document incorporated or deemed to be incorporated by reference in this prospectus will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or in any other subsequently filed document which is also incorporated or deemed to be incorporated by reference in this prospectus modifies or supersedes such statement. Any statement so modified or superseded will not be deemed, except as so modified or

33


Table of Contents

superseded, to constitute a part of this prospectus. This prospectus incorporates by reference the documents set forth below that we have previously filed with the Securities and Exchange Commission (File No. 001-11840) . These documents contain important business and financial information about us that is not included in or delivered with this prospectus.

        We are also incorporating by reference all other documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, prior to the termination of this offering.

        You can request a free copy of any or all of these documents, other than the exhibits to those documents, unless those exhibits are specifically incorporated by reference into these documents, by writing to: Investor Relations Department, The Allstate Corporation, 2775 Sanders Road, Northbrook, Illinois 60062-7127, or calling: (800) 416-8803.


SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

        This prospectus and the documents we incorporate by reference contain "forward-looking statements" that anticipate results based on management's estimates, assumptions and plans that are subject to uncertainty. These statements are made subject to the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. We assume no obligation to update any forward-looking statements as a result of new information or future events or developments.

        These forward-looking statements do not relate strictly to historical or current facts and may be identified by their use of words like "plans," "expects," "will," "anticipates," "estimates," "intends," "believes," "likely" and other words with similar meanings. These statements may address, among other things, our strategy for growth, product development, regulatory approvals, market position, expenses, financial results and reserves. Management believes that these statements are based on reasonable estimates, assumptions and plans. However, if the estimates, assumptions or plans underlying the forward-looking statements prove inaccurate or if other risks or uncertainties arise, actual results could differ materially from those communicated in these forward-looking statements. In addition to the normal risks of business, we are subject to significant risks and uncertainties which are described in our filings with the Securities and Exchange Commission referred to above in "Where You Can Find More Information," including those identified under the caption "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2008, and as may be described in our subsequent filings.

34


Table of Contents

LEGAL OPINIONS

        The validity of the securities offered hereby will be passed upon for us by Dewey & LeBoeuf LLP, New York, New York, counsel for Allstate, and certain matters of Delaware law relating to the validity of the trust preferred securities of Allstate Financing III, IV, V and VI will be passed upon for the trusts by Richards, Layton & Finger, P.A., Wilmington, Delaware, special Delaware counsel for the trusts.

EXPERTS

        The consolidated financial statements and the related financial statement schedules, incorporated in this Prospectus by reference from The Allstate Corporation's Annual Report on Form 10-K, and the effectiveness of The Allstate Corporation's internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports which are incorporated herein by reference. Such consolidated financial statements and financial statement schedules have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

        With respect to the unaudited interim financial information which is incorporated herein by reference, Deloitte & Touche LLP, an independent registered public accounting firm, have applied limited procedures in accordance with the standards of the Public Company Accounting Oversight Board (United States) for a review of such information. However, as stated in their reports included in the quarterly reports on Form 10-Q of The Allstate Corporation and incorporated by reference herein, they did not audit and they do not express an opinion on that interim financial information. Accordingly, the degree of reliance on their reports on such information should be restricted in light of the limited nature of the review procedures applied. Deloitte & Touche LLP are not subject to the liability provisions of Section 11 of the Securities Act of 1933 for their reports on the unaudited interim financial information because those reports are not "reports" or a "part" of the Registration Statement prepared or certified by an accountant within the meaning of Sections 7 and 11 of the Securities Act of 1933.


ERISA MATTERS

        The Employee Retirement Income Security Act of 1974, as amended, which we refer to as ERISA, and Section 4975 of the Internal Revenue Code of 1986, as amended, which we refer to as the Code, impose certain requirements on employee benefit plans and certain other plans and arrangements, including individual retirement accounts and annuities, Keogh plans and certain collective investment funds or insurance company general or separate accounts in which such plans, accounts or arrangements are invested, that are subject to the fiduciary responsibility provisions of ERISA and/or Section 4975 of the Code, and on persons who are fiduciaries with respect to the plans, in connection with the investment of "plan assets" of any plan which we refer to as Plan Assets. We refer to these types of plans or arrangements individually as the Plan and collectively, the Plans. ERISA generally imposes on Plan fiduciaries certain general fiduciary requirements, including those of investment prudence and diversification and the requirement that a Plan's investments be made in accordance with the documents governing the Plan. ERISA and Section 4975 of the Code prohibit a broad range of transactions involving Plan Assets and persons ("parties in interest" under ERISA and "disqualified persons" under the Code are collectively referred to as "Parties in Interest") who have certain specified relationships to a Plan or its Plan Assets, unless a statutory or administrative exemption is available. Parties in Interest that participate in a prohibited transaction may be subject to a penalty imposed under ERISA and/or an excise tax imposed pursuant to Section 4975 of the Code, unless a statutory or administrative exemption is available. These prohibited transactions generally are set forth in Section 406 of ERISA and Section 4975 of the Code.

35


Table of Contents

        Any fiduciary or other Plan investor considering whether to purchase the securities with Plan Assets should determine whether such purchase is consistent with its fiduciary duties and whether such purchase would constitute or result in a non-exempt prohibited transaction under ERISA and/or Section 4975 of the Code. We and certain of our affiliates may each be considered a Party in Interest with respect to many employee benefit plans. Prohibited transactions within the meaning of ERISA or the Code may arise, for example, if the offered securities are acquired by a pension or other employee benefit plan with respect to which we or any of our affiliates is a service provider (or otherwise is a Party in Interest), unless such offered securities are acquired pursuant to an exemption for transactions effected on behalf of such plan by a "qualified professional asset manager" or pursuant to any other available exemption. Accordingly, any fiduciary or other Plan investor considering whether to purchase or hold a security should consult with its counsel regarding the availability of exemptive relief under Department of Labor Prohibited Transaction Class Exemption 96-23 (relating to transactions determined by "in-house asset managers"), 95-60 (relating to transactions involving insurance company general accounts), 91-38 (relating to transactions involving bank collective investment funds), 90-1 (relating to transactions involving insurance company pooled separate accounts) or 84-14 (relating to transactions determined by independent "qualified professional asset managers") or any other statutory or administrative prohibited transaction exemption. A purchaser of a security should be aware, however, that even if the conditions specified in one or more of the above-referenced exemptions are met, the scope of the exemptive relief provided by the exemption might not cover all acts which might be construed as prohibited transactions. In any event, each purchaser or holder of a security or any interest therein will be deemed to have represented by its purchase and holding thereof that either (i) it is not a Plan or acting on behalf of a Plan or acquiring the security with the Plan Assets or (ii) the acquisition and holding of the security is exempt pursuant to one or more foregoing prohibited transaction exemptions issued by the Department of Labor or another applicable statutory or administrative exemption.

        Moreover, because the acquisition and holding of a security may be deemed to be an indirect extension of credit between an investor and The Allstate Corporation, the security may not be purchased or held by any Plan, or any person investing Plan Assets of any Plan, if we or any of our affiliates (a) has investment or administrative discretion with respect to the Plan Assets used to effect such purchase or (b) has authority or responsibility to give, or regularly gives, investment advice with respect to such Plan Assets, for a fee and pursuant to an agreement or understanding that such advice (1) will serve as a primary basis for investment decisions with respect to such Plan Assets, and (2) will be based on the particular investment needs of such Plan.

        The Department of Labor has promulgated a regulation, 29 C.F.R. §2510.3-101, which we refer to as the Plan Asset Regulation, describing what constitutes the assets of a Plan with respect to the Plan's investment in an entity for purposes of the fiduciary responsibility provisions of Title I of ERISA and Section 4975 of the Code. Under the Plan Asset Regulation, if a Plan invests in an "equity interest" of an entity that is neither a "publicly offered security" nor a security issued by an investment company registered under the 1940 Act, the Plan's assets are deemed to include both the equity interest itself and an undivided interest in each of the entity's underlying assets, unless it is established that the entity is an "operating company" or that equity participation by "benefit plan investors" is not "significant." The Plan Asset Regulation provides, however, that where the value of a plan's equity interest in an entity relates solely to identified property of the entity, such property shall be treated as the sole property of a separate entity. Any fiduciary or other Plan investor considering whether to purchase any securities on behalf of or with Plan Assets of any Plan should consult with its counsel and refer to this prospectus for guidance regarding the potential ERISA and Code consequences of an investment in the securities considering their specific circumstances.

        Certain employee benefit plans, such as governmental plans (as defined in Section 3(32) of ERISA) and certain church plans (as defined in Section 3(33) of ERISA), are not subject to the

36


Table of Contents


fiduciary responsibility provisions of ERISA or Section 4975 of the Code. Accordingly, assets of such plans may be invested in the securities without regard to the ERISA considerations described herein, subject to the provisions or other applicable federal and state law. However, any such plan that is qualified and exempt from taxation under Sections 401(a) and 501(a) of the Code is subject to the prohibited transaction rules set forth in Section 503 of the Code. Furthermore, a governmental plan may be subject to federal, state or local laws which are similar to the provisions of ERISA or Section 4975 of the Code.

        Due to the complexity of these rules and the penalties that may be imposed upon Parties in Interest in non-exempt prohibited transactions, it is particularly important that fiduciaries or other persons considering purchasing securities on behalf of, or with "plan assets" of, any Plan consult with their counsel regarding the potential consequences of such purchase and the availability of exemptive relief under Department of Labor Prohibited Transaction Class Exemption 96-23, 95-60, 91-38, 90-1 or 84-14 and determine on its own whether all of the conditions of the applicable prohibited transaction exemption (or any other statutory or administrative prohibited transaction exemption) have been satisfied and that its purchase and holding of the securities will be entitled to full exemptive relief. The fiduciary of an employee benefit plan that is not subject to ERISA or Section 4975 of the Code proposing to invest in the securities must make its own determination that such investment is permitted under applicable law.

37


Table of Contents

TABLE OF CONTENTS

 
  Page

About This Prospectus

  i

The Allstate Corporation

 
1

The Trusts

 
1

Ratio of Earnings to Fixed Charges and Ratio of Earnings to Fixed Charges and Preferred Stock Dividends

 
2

Risk Factors

 
3

Use of Proceeds

 
3

Description of Debt Securities

 
3

Description of Capital Stock

 
17

Description of Depositary Shares

 
21

Description of Warrants

 
23

Description of Stock Purchase Contracts and Stock Purchase Units

 
26

Description of Trust Preferred Securities

 
26

Description of Preferred Securities Guarantees

 
28

Plan of Distribution

 
32

Where You Can Find More Information

 
33

Special Note Regarding Forward-Looking Statements

 
34

Legal Opinions

 
35

Experts

 
35

Erisa Matters

 
35

TABLE OF CONTENTS

Prospectus Supplement

 
Page
 

The Allstate Corporation

  S-1

Use of Proceeds

 
S-2

Capitalization

 
S-2

Selected Consolidated Financial Information

 
S-3

Description of the Notes

 
S-4

Underwriting

 
S-10

Legal Matters

 
S-14

Experts

 
S-14

$                  

The Allstate Corporation

        % Senior Notes due 2042


LOGO


J.P. Morgan
Goldman, Sachs & Co.
Barclays Capital