PAGE 1 000 B000000 03/31/2013 000 C000000 0001258943 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 U 001 A000000 PIONEER MUNICIPAL HIGH INCOME ADVANTAGE TRUST 001 B000000 811-21409 001 C000000 6177427825 002 A000000 60 STATE STREET 002 B000000 BOSTON 002 C000000 MA 002 D010000 02109 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 007 C010200 2 007 C010300 3 007 C010400 4 007 C010500 5 007 C010600 6 007 C010700 7 007 C010800 8 007 C010900 9 007 C011000 10 008 A000001 PIONEER INVESTMENT MANAGEMENT, INC. 008 B000001 A 008 C000001 801-8255 008 D010001 BOSTON 008 D020001 MA 008 D030001 02109 010 A000001 PIONEER INVESTMENT MANAGEMENT, INC. 010 B000001 801-8255 010 C010001 BOSTON 010 C020001 MA 010 C030001 02109 010 A000002 BROWN BROTHERS HARRIMAN & CO. 010 C010002 BOSTON 010 C020002 MA 010 C030002 02109 011 A000001 PIONEER FUNDS DISTRIBUTOR, INC. 011 B000001 8-41256 011 C010001 BOSTON 011 C020001 MA PAGE 2 011 C030001 02109 011 C040001 1820 011 A000002 UBS INVESTMENT BANK 011 B000002 8-022651 011 C010002 STAMFORD 011 C020002 CT 011 C030002 06901 011 A000003 RBC CAPITAL MARKETS CORP. 011 B000003 8-045411 011 C010003 MINNEAPOLIS 011 C020003 MN 011 C030003 55402 011 C040003 4422 011 A000004 MERRILL LYNCH & CO. 011 B000004 8-7221 011 C010004 NEW YORK 011 C020004 NY 011 C030004 10281 011 C040004 1201 011 A000005 JANNEY MONTGOMERY SCOTT, LLC 011 B000005 8-462 011 C010005 PHILADELPHIA 011 C020005 PA 011 C030005 19103 011 C040005 1675 011 A000006 WACHOVIA CAPITAL MARKETS, LLC 011 B000006 8-99999 011 C010006 RICHMOND 011 C020006 VA 011 C030006 23219 012 A000001 PIONEER INVEST. MGMT. SHAREHOLDER SERV. INC. 012 B000001 85-01359 012 C010001 BOSTON 012 C020001 MA 012 C030001 02109 012 A000002 AMERICAN STOCK TRANSFER & TRUST CO. (COMMON) 012 B000002 85-00000 012 C010002 BROOKLYN 012 C020002 NY 012 C030002 11219 012 A000003 DEUTSCHE BANK TRUST COMPANY AMERICAS (PREF.) 012 B000003 85-05212 012 C010003 NEW YORK 012 C020003 NY 012 C030003 10005 013 A000001 ERNST & YOUNG, LLP 013 B010001 BOSTON 013 B020001 MA 013 B030001 02116 013 B040001 5072 015 A000001 BROWN BROTHERS HARRIMAN & CO. PAGE 3 015 B000001 C 015 C010001 BOSTON 015 C020001 MA 015 C030001 02109 015 E010001 X 015 A000002 CITIBANK, N.A. BUENOS AIRES BRANCH 015 B000002 S 015 C010002 BUENOS AIRES 015 D010002 ARGENTINA 015 E040002 X 015 A000003 HSBC BANK AUSTRALIA LIMITED 015 B000003 S 015 C010003 SYDNEY 015 D010003 AUSTRALIA 015 E040003 X 015 A000004 EUROCLEAR BANK SA NV 015 B000004 S 015 C010004 BRUSSELS 015 D010004 BELGIUM 015 E040004 X 015 A000005 CITIBANK, N.A.,SAO PAULO 015 B000005 S 015 C010005 SAO PAULO 015 D010005 BRAZIL 015 E040005 X 015 A000006 ING BANK, N.V.,SOFIA BRANCH 015 B000006 S 015 C010006 SOFIA 015 D010006 BULGARIA 015 E040006 X 015 A000007 RBC INVESTOR SERVICES TRUST 015 B000007 S 015 C010007 TORONTO 015 D010007 CANADA 015 E040007 X 015 A000008 BANCO DE CHILE 015 B000008 S 015 C010008 SANTIAGO 015 D010008 CHILE 015 E040008 X 015 A000009 STANDARD CHARTERED BANK(CHINA)LIMITED 015 B000009 S 015 C010009 SHANGHAI 015 D010009 CHINA 015 E040009 X 015 A000010 CITITRUST COLOMBIA S.A.,SOCIEDAD FIDUCIARA 015 B000010 S 015 C010010 BOGATA 015 D010010 COLOMBIA 015 E040010 X 015 A000011 CITIBANK EUROPE PLC,ORGANIZACNI SLOZKA PAGE 4 015 B000011 S 015 C010011 PRAGUE 015 D010011 CZECH REPUBLIC 015 E040011 X 015 A000012 STANDARD CHARTERED BANK GHANA LTD. 015 B000012 S 015 C010012 ACCRA 015 D010012 GHANA 015 E040012 X 015 A000013 STANDARD CHARTERED BANK(HONG KONG) LIMITED 015 B000013 S 015 C010013 KWUN TONG 015 D010013 HONG KONG 015 E040013 X 015 A000014 CITIBANK EUROPE PLC, HUNGARIAN BRANCH OFFICE 015 B000014 S 015 C010014 BUDAPEST 015 D010014 HUNGARY 015 E040014 X 015 A000015 CITIBANK, N.A.,JAKARTA BRANCH 015 B000015 S 015 C010015 JAKARTA 015 D010015 INDONESIA 015 E040015 X 015 A000016 BANK HAPOALIM BM 015 B000016 S 015 C010016 TEL AVIV 015 D010016 ISRAEL 015 E040016 X 015 A000017 SUMITOMO MITSU BANKING CORPORATION 015 B000017 S 015 C010017 TOKYO 015 D010017 JAPAN 015 E040017 X 015 A000018 CFC STANBIC BANK LIMITED 015 B000018 S 015 C010018 NAIROBI 015 D010018 KENYA 015 E040018 X 015 A000019 HSBC BANK MALAYSIA BERHAD 015 B000019 S 015 C010019 KUALA LUMPUR 015 D010019 MALAYSIA 015 E040019 X 015 A000020 BANCO NACIONAL DE MEXICO, S.A.(BANAMEX) 015 B000020 S 015 C010020 SANTA FE 015 D010020 MEXICO 015 E040020 X 015 A000021 CITIBANK MAGHREB 015 B000021 S PAGE 5 015 C010021 CASABLANCA 015 D010021 MOROCCO 015 E040021 X 015 A000022 STANBIC IBTC BANK PLC 015 B000022 S 015 C010022 LAGOS 015 D010022 NIGERIA 015 E040022 X 015 A000023 NORDEA BANK NORGE ASA 015 B000023 S 015 C010023 OSLO 015 D010023 NORWAY 015 E040023 X 015 A000024 CITIBANK DEL PERU S.A. 015 B000024 S 015 C010024 LIMA 015 D010024 PERU 015 E040024 X 015 A000025 HSBC LIMITED,PHILIPPINE BRANCH 015 B000025 S 015 C010025 TAGUIG CITY 015 D010025 PHILLIPINES 015 E040025 X 015 A000026 BANK HANDLOWY W WARSZAWIE SA 015 B000026 S 015 C010026 WARSAZAWA 015 D010026 POLAND 015 E040026 X 015 A000027 ING BANK N.V.,BUCHAREST BRANCH 015 B000027 S 015 C010027 BUCHAREST 015 D010027 ROMANIA 015 E040027 X 015 A000028 ZAO CITIBANK 015 B000028 S 015 C010028 MOSCOW 015 D010028 RUSSIA 015 E040028 X 015 A000029 STANDARD CHARTERED BANK SINGAPORE BRANCH 015 B000029 S 015 C010029 SINGAPORE 015 D010029 SINGAPORE 015 E040029 X 015 A000030 ING BANK NV, BRATISLAVA BRANCH 015 B000030 S 015 C010030 BRATISLAVA 015 D010030 SLOVAKIA 015 E040030 X 015 A000031 STANDARD BANK OF SOUTH AFRICA LIMITED 015 B000031 S 015 C010031 JOHANNESBURG PAGE 6 015 D010031 SOUTH AFRICA 015 E040031 X 015 A000032 SKANDINAVISKA ENSKILDA BANKEN AB(PUBL) 015 B000032 S 015 C010032 STOCKHOLM 015 D010032 SWEDEN 015 E040032 X 015 A000033 CREDIT SUISSE AG 015 B000033 S 015 C010033 ZURICH 015 D010033 SWITZERLAND 015 E040033 X 015 A000034 HSBC LIMITED,THAILAND BRANCH 015 B000034 S 015 C010034 BANGKOK 015 D010034 THAILAND 015 E040034 X 015 A000035 CITIBANK ANONIM SIRKETI 015 B000035 S 015 C010035 ISTANBUL 015 D010035 TURKEY 015 E040035 X 015 A000036 HSBC BANK PLC 015 B000036 S 015 C010036 LONDON 015 D010036 UNITED KINGDOM 015 E040036 X 015 A000037 UNICREDIT BANK AUSTRIA AG 015 B000037 S 015 C010037 VIENNA 015 D010037 AUSTRIA 015 E040037 X 015 A000038 BNP PARIBAS SECURITIES SERVICES 015 B000038 S 015 C010038 PANTIN 015 D010038 BELGIUM 015 E040038 X 015 A000039 UNICREDIT BANK AUSTRIA AG 015 B000039 S 015 C010039 VIENNA 015 D010039 CROATIA 015 E040039 X 015 A000040 SKANDINAVISKA ENSKILDA BANKEN AB (PUBL) 015 B000040 S 015 C010040 COPENHAGEN 015 D010040 DENMARK 015 E040040 X 015 A000041 CITIBANK, N.A., CAIRO BRANCH 015 B000041 S 015 C010041 CAIRO 015 D010041 EGYPT PAGE 7 015 E040041 X 015 A000042 NORDEA BANK FINLAND PLC 015 B000042 S 015 C010042 HELSINKI 015 D010042 FINLAND 015 E040042 X 015 A000043 BNP PARIBAS SECURITIES SERVICES 015 B000043 S 015 C010043 PANTIN 015 D010043 FRANCE 015 E040043 X 015 A000044 BNP PARIBAS SECURITIES SERVICES 015 B000044 S 015 C010044 FRANKFURT 015 D010044 GERMANY 015 E040044 X 015 A000045 HSBC BANK PLC, ATHENS BRANCH 015 B000045 S 015 C010045 ATHENS 015 D010045 GREECE 015 E040045 X 015 A000046 CITIBANK, N.A., MUMBAI BRANCH 015 B000046 S 015 C010046 MUMBAI 015 D010046 INDIA 015 E040046 X 015 A000047 CITIBANK, N.A., LONDON BRANCH 015 B000047 S 015 C010047 LONDON 015 D010047 IRELAND 015 E040047 X 015 A000048 BNP PARIBAS SECURITIES SERVICES, MILAN BRANCH 015 B000048 S 015 C010048 MILAN 015 D010048 ITALY 015 E040048 X 015 A000049 HSBC BANK MIDDLE EAST CORPORATION 015 B000049 S 015 C010049 AMMAN 015 D010049 JORDAN 015 E040049 X 015 A000050 HSBC BANK MIDDLE EAST LIMITED, KUWAIT BRANCH 015 B000050 S 015 C010050 SAFAT 015 D010050 KUWAIT 015 E040050 X 015 A000051 KBL EUROPEAN PRIVATE BANKERS SA 015 B000051 S 015 C010051 LUXEMBOURG 015 D010051 LUXEMBOURG 015 E040051 X PAGE 8 015 A000052 BNP PARIBAS SECURITIES SERVICES 015 B000052 S 015 C010052 PANTIN 015 D010052 NETHERLANDS 015 E040052 X 015 A000053 HSBC LIMITED, NEW ZEALAND BRANCH 015 B000053 S 015 C010053 AUCKLAND 015 D010053 NEW ZEALAND 015 E040053 X 015 A000054 BNP PARIBAS SECURITIES SERVICES 015 B000054 S 015 C010054 PANTIN 015 D010054 PORTUGAL 015 E040054 X 015 A000055 HSBC BANK MIDDLE EAST LIMITED, QATAR BRANCH 015 B000055 S 015 C010055 ST. HELIER 015 D010055 QATAR 015 E040055 X 015 A000056 HSBC SAUDI ARABIA LIMITED 015 B000056 S 015 C010056 RIYADH 015 D010056 SAUDI ARABIA 015 E040056 X 015 A000057 CITIBANK KOREA INC 015 B000057 S 015 C010057 SEOUL 015 D010057 SOUTH KOREA 015 E040057 X 015 A000058 BANCO BILBAO VIZCAYA AREGENTARIA SA 015 B000058 S 015 C010058 MADRID 015 D010058 SPAIN 015 E040058 X 015 A000059 HSBC, SRI LANKA BRANCH 015 B000059 S 015 C010059 COLOMBO 015 D010059 SRI LANKA 015 E040059 X 015 A000060 BANK OF TAIWAN 015 B000060 S 015 C010060 TAIPEI 015 D010060 TAIWAN 015 E040060 X 015 A000061 HSBC BANK PLC 015 B000061 S 015 C010061 LONDON 015 D010061 UNITED KINGDOM 015 E040061 X 015 A000062 CITIBANK, N.A., CARACAS BRANCH PAGE 9 015 B000062 S 015 C010062 CARACAS 015 D010062 VENEZUELA 015 E040062 X 015 A000063 HSBC BANK (VIETNAM) LTD 015 B000063 S 015 C010063 HO CHI MINH CITY 015 D010063 VIETNAM 015 E040063 X 018 000000 Y 019 A000000 Y 019 B000000 57 019 C000000 PIONEERFDS 020 A000001 SANFORD C. BERNSTEIN & CO., LLC 020 B000001 13-4132953 020 C000001 2430 020 A000002 UBS SECURITIES LLC 020 B000002 13-3873456 020 C000002 432 020 A000003 MERRILL LYNCH, PIERCE, FENNER & SMITH INC. 020 B000003 13-5674085 020 C000003 287 020 A000004 WELLS FARGO SECURITIES, LLC 020 B000004 94-3379992 020 C000004 172 020 C000005 0 020 C000006 0 020 C000007 0 020 C000008 0 020 C000009 0 020 C000010 0 021 000000 3322 022 A000001 J.P. MORGAN SECURITIES LLC 022 B000001 13-3299429 022 C000001 27783 022 D000001 2523 022 A000002 CITIGROUP GLOBAL MARKETS INC. 022 B000002 11-2418181 022 C000002 7425 022 D000002 0 022 A000003 BNY MELLON CAPITAL MARKETS, LLC 022 B000003 23-2384977 022 C000003 5791 022 D000003 0 022 A000004 RBC CAPITAL MARKETS, LLC 022 B000004 41-1228350 022 C000004 5269 022 D000004 0 022 A000005 MORGAN KEEGAN & COMPANY, INC. 022 B000005 64-0474907 022 C000005 4727 PAGE 10 022 D000005 0 022 A000006 BLACKROCK INVESTMENTS, LLC 022 B000006 13-3806694 022 C000006 0 022 D000006 3400 022 A000007 OPPENHEIMER & CO. INC. 022 B000007 13-5657518 022 C000007 2793 022 D000007 0 022 A000008 CLEARVIEW TRADING ADVISORS, INC. 022 B000008 14-1981175 022 C000008 2000 022 D000008 0 022 A000009 MESIROW FINANCIAL, INC. 022 B000009 36-3194849 022 C000009 0 022 D000009 2023 022 A000010 MERRILL LYNCH, PIERCE, FENNER & SMITH INC. 022 B000010 13-5674085 022 C000010 0 022 D000010 1990 023 C000000 70143 023 D000000 20157 024 000000 Y 025 A000001 BLACKROCK INVESTMENTS, LLC 025 B000001 13-3806694 025 C000001 D 025 D000001 7000 025 D000002 0 025 D000003 0 025 D000004 0 025 D000005 0 025 D000006 0 025 D000007 0 025 D000008 0 026 A000000 N 026 B000000 Y 026 C000000 N 026 D000000 Y 026 E000000 N 026 F000000 N 026 G010000 N 026 G020000 N 026 H000000 N 027 000000 N 028 A010000 0 028 A020000 0 028 A030000 0 028 A040000 0 028 B010000 0 028 B020000 0 PAGE 11 028 B030000 0 028 B040000 0 028 C010000 0 028 C020000 0 028 C030000 0 028 C040000 0 028 D010000 0 028 D020000 0 028 D030000 0 028 D040000 0 028 E010000 0 028 E020000 0 028 E030000 0 028 E040000 0 028 F010000 0 028 F020000 0 028 F030000 0 028 F040000 0 028 G010000 0 028 G020000 0 028 G030000 0 028 G040000 0 028 H000000 0 030 A000000 0 030 B000000 0.00 030 C000000 0.00 031 A000000 0 031 B000000 0 032 000000 0 033 000000 0 035 000000 0 036 B000000 0 038 000000 0 042 A000000 0 042 B000000 0 042 C000000 0 042 D000000 0 042 E000000 0 042 F000000 0 042 G000000 0 042 H000000 0 043 000000 0 044 000000 0 045 000000 Y 046 000000 N 047 000000 Y 048 000000 0.600 048 A010000 0 048 A020000 0.000 048 B010000 0 048 B020000 0.000 PAGE 12 048 C010000 0 048 C020000 0.000 048 D010000 0 048 D020000 0.000 048 E010000 0 048 E020000 0.000 048 F010000 0 048 F020000 0.000 048 G010000 0 048 G020000 0.000 048 H010000 0 048 H020000 0.000 048 I010000 0 048 I020000 0.000 048 J010000 0 048 J020000 0.000 048 K010000 0 048 K020000 0.000 049 000000 N 050 000000 N 051 000000 N 052 000000 N 053 A000000 N 054 A000000 Y 054 B000000 Y 054 C000000 Y 054 D000000 N 054 E000000 N 054 F000000 N 054 G000000 N 054 H000000 Y 054 I000000 N 054 J000000 Y 054 K000000 N 054 L000000 N 054 M000000 Y 054 N000000 N 054 O000000 N 055 A000000 N 055 B000000 N 056 000000 N 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 Y 060 B000000 Y 061 000000 0 062 A000000 Y 062 B000000 0.0 062 C000000 0.0 062 D000000 0.0 PAGE 13 062 E000000 0.0 062 F000000 0.0 062 G000000 0.0 062 H000000 0.0 062 I000000 0.0 062 J000000 0.0 062 K000000 0.0 062 L000000 0.0 062 M000000 0.0 062 N000000 0.0 062 O000000 146.2 062 P000000 0.0 062 Q000000 2.2 062 R000000 0.0 063 A000000 0 063 B000000 20.6 064 A000000 Y 064 B000000 Y 065 000000 N 066 A000000 N 067 000000 N 068 A000000 N 068 B000000 N 069 000000 N 070 A010000 Y 070 A020000 N 070 B010000 N 070 B020000 N 070 C010000 Y 070 C020000 N 070 D010000 N 070 D020000 N 070 E010000 Y 070 E020000 N 070 F010000 N 070 F020000 N 070 G010000 Y 070 G020000 N 070 H010000 N 070 H020000 N 070 I010000 N 070 I020000 N 070 J010000 Y 070 J020000 Y 070 K010000 Y 070 K020000 Y 070 L010000 N 070 L020000 N 070 M010000 N 070 M020000 N 070 N010000 N PAGE 14 070 N020000 N 070 O010000 Y 070 O020000 N 070 P010000 Y 070 P020000 N 070 Q010000 N 070 Q020000 N 070 R010000 N 070 R020000 N 071 A000000 69789 071 B000000 62319 071 C000000 456589 071 D000000 14 072 A000000 12 072 B000000 29387 072 C000000 0 072 D000000 0 072 E000000 0 072 F000000 2790 072 G000000 273 072 H000000 0 072 I000000 36 072 J000000 7 072 K000000 0 072 L000000 26 072 M000000 17 072 N000000 18 072 O000000 0 072 P000000 0 072 Q000000 0 072 R000000 61 072 S000000 124 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 535 072 X000000 3887 072 Y000000 0 072 Z000000 25500 072AA000000 418 072BB000000 0 072CC010000 16515 072CC020000 0 072DD010000 26607 072DD020000 0 072EE000000 0 073 A010000 1.1400 073 A020000 0.0000 073 B000000 0.0000 073 C000000 0.0000 074 A000000 0 PAGE 15 074 B000000 0 074 C000000 0 074 D000000 463254 074 E000000 0 074 F000000 0 074 G000000 0 074 H000000 0 074 I000000 7000 074 J000000 0 074 K000000 0 074 L000000 11546 074 M000000 173 074 N000000 481973 074 O000000 12808 074 P000000 230 074 Q000000 0 074 R010000 0 074 R020000 0 074 R030000 0 074 R040000 2055 074 S000000 150006 074 T000000 316874 074 U010000 23407 074 U020000 0 074 V010000 13.54 074 V020000 0.00 074 W000000 0.0000 074 X000000 0 074 Y000000 0 075 A000000 0 075 B000000 315018 076 000000 15.51 077 A000000 Y 077 B000000 Y 077 C000000 N 077 D000000 N 077 E000000 N 077 F000000 N 077 G000000 N 077 H000000 N 077 I000000 N 077 J000000 N 077 K000000 N 077 L000000 N 077 M000000 N 077 N000000 N 077 O000000 N 077 P000000 N 077 Q010000 N 077 Q020000 N 077 Q030000 N PAGE 16 078 000000 N 080 A000000 ICI MUTUAL INSURANCE COMPANY 080 C000000 45000 081 A000000 Y 081 B000000 57 082 A000000 Y 082 B000000 0 083 A000000 N 083 B000000 0 084 A000000 N 084 B000000 0 085 A000000 N 085 B000000 N 086 A010000 149 086 A020000 1961 086 B010000 0 086 B020000 0 086 C010000 0 086 C020000 0 086 D010000 0 086 D020000 0 086 E010000 0 086 E020000 0 086 F010000 0 086 F020000 0 087 A010000 COMMON STOCK 087 A020000 723762100 087 A030000 MAV 087 B010000 PREFERRED STOCK - SERIES A 087 B020000 723762209 087 C010000 PREFERRED STOCK - SERIES B 087 C020000 723762308 088 A000000 N 088 B000000 N 088 C000000 N 088 D000000 Y SIGNATURE MARK E. BRADLEY TITLE TREASURER