<PAGE> PAGE 1
000 A000000 04/30/95
000 C000000 0000764110
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 PUTNAM MANAGED INCOME TRUST
001 B000000 811-4242
001 C000000 6172921562
002 A000000 ONE POST OFFICE SQUARE
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 PUTNAM INVESTMENT MANAGEMENT, INC.
008 B000001 A
008 C000001 801-7974
008 D010001 BOSTON
008 D020001 MA
008 D030001 02109
011 A000001 PUTNAM MUTUAL FUNDS CORP.
011 B000001 8-5088
011 C010001 BOSTON
011 C020001 MA
011 C030001 02109
012 A000001 PUTNAM INVESTOR SERVICES, INC.
012 B000001 84-401299
012 C010001 BOSTON
012 C020001 MA
012 C030001 02190
018 000000 Y
019 A000000 Y
019 B000000 86
<PAGE> PAGE 2
019 C000000 PUTNAMFUND
020 A000001 BEAR STERNS & CO
020 B000001 13-4946705
020 C000001 56
020 A000002 STANDARD & POORS
020 B000002 22-2294542
020 C000002 38
020 A000003 PAINE WEBBER
020 B000003 13-2838166
020 C000003 25
020 A000004 PRUDENTIAL SECURITIES
020 B000004 22-2347336
020 C000004 23
020 A000005 LINSCO
020 B000005 04-1554520
020 C000005 22
020 A000006 JANEY MONTGOMERY
020 B000006 23-0731260
020 C000006 21
020 A000007 AG EDWARDS
020 B000007 43-0895477
020 C000007 20
020 A000008 FIRST BOSTON
020 B000008 13-5659485
020 C000008 17
020 A000009 KIDDER PEABODY
020 B000009 13-5650440
020 C000009 16
020 A000010 MERRILL LYNCHJ
020 B000010 13-5674085
020 C000010 15
021 000000 594
022 A000001 KIDDER PEABODY & CO.
022 B000001 13-5650440
022 C000001 1233573
022 D000001 0
022 A000002 LEHMAN BROTHERS
022 B000002 13-2518466
022 C000002 1093036
022 D000002 64202
022 A000003 JP MORGAN SECURITIES
022 C000003 609148
022 D000003 43208
022 A000004 GOLDMAN SACHS
022 B000004 13-5108880
022 C000004 153275
022 D000004 14823
022 A000005 PRUDENTIAL SECURITIES
022 B000005 13-5108880
022 C000005 115660
022 D000005 7295
<PAGE> PAGE 3
022 A000006 NOMURA SECURITIES
022 B000006 13-2642206
022 C000006 74729
022 D000006 0
022 A000007 SOLOMON BROTHERS
022 B000007 13-3082694
022 C000007 60149
022 D000007 17814
022 A000008 MORGAN STANLEY & CO., INC.
022 B000008 13-2655998
022 C000008 53233
022 D000008 50250
022 A000009 MERRILL LYNCH
022 B000009 13-5674085
022 C000009 53092
022 D000009 23960
022 A000010 GREENWICH SECURITIES
022 B000010 13-2697091
022 C000010 34795
022 D000010 18573
023 C000000 4162586
023 D000000 303627
024 000000 Y
025 A000001 BEAR STEARNS
025 C000001 E
025 D000001 3824
025 D000002 0
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
026 A000000 Y
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 Y
026 G020000 Y
026 H000000 N
027 000000 Y
028 A010000 1810
028 A020000 3647
028 A030000 0
028 A040000 7877
028 B010000 1694
028 B020000 0
028 B030000 0
028 B040000 8782
<PAGE> PAGE 4
028 C010000 1279
028 C020000 0
028 C030000 0
028 C040000 8418
028 D010000 1804
028 D020000 3578
028 D030000 0
028 D040000 5828
028 E010000 1804
028 E020000 0
028 E030000 0
028 E040000 8930
028 F010000 1126
028 F020000 0
028 F030000 0
028 F040000 7150
028 G010000 9517
028 G020000 7225
028 G030000 0
028 G040000 46985
028 H000000 9517
029 000000 Y
030 A000000 97
030 B000000 5.75
030 C000000 0.00
031 A000000 16
031 B000000 0
032 000000 81
033 000000 0
034 000000 Y
035 000000 1
036 A000000 N
036 B000000 0
037 000000 N
038 000000 0
039 000000 N
040 000000 Y
041 000000 Y
042 A000000 0
042 B000000 0
042 C000000 100
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 571
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
<PAGE> PAGE 5
048 000000 0.000
048 A010000 500
048 A020000 0.650
048 B010000 1000
048 B020000 0.550
048 C010000 1500
048 C020000 0.500
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 1500000
048 K020000 0.450
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 N
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 Y
055 A000000 N
055 B000000 N
056 000000 N
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
<PAGE> PAGE 6
061 000000 500
062 A000000 Y
062 B000000 0.0
062 C000000 2.2
062 D000000 1.4
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 12.7
062 N000000 10.3
062 O000000 0.0
062 P000000 20.9
062 Q000000 52.5
062 R000000 0.0
063 A000000 0
063 B000000 12.5
064 A000000 Y
064 B000000 N
066 A000000 Y
066 F000000 Y
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 Y
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 Y
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 N
<PAGE> PAGE 7
070 L010000 Y
070 L020000 Y
070 M010000 N
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 Y
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000 284241
071 B000000 302790
071 C000000 437106
071 D000000 65
072 A000000 6
072 B000000 9831
072 C000000 3967
072 D000000 0
072 E000000 0
072 F000000 1436
072 G000000 5
072 H000000 0
072 I000000 289
072 J000000 -80
072 K000000 46
072 L000000 38
072 M000000 9
072 N000000 0
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 24
072 S000000 10
072 T000000 571
072 U000000 0
072 V000000 0
072 W000000 18
072 X000000 2366
072 Y000000 0
072 Z000000 11432
072AA000000 0
072BB000000 6268
072CC010000 29359
072CC020000 0
072DD010000 12363
072DD020000 0
072EE000000 0
<PAGE> PAGE 8
073 A010000 0.2400
073 A020000 0.2120
073 B000000 0.0000
073 C000000 0.0000
074 A000000 0
074 B000000 6129
074 C000000 9964
074 D000000 151377
074 E000000 6256
074 F000000 186642
074 G000000 0
074 H000000 0
074 I000000 103655
074 J000000 10899
074 K000000 0
074 L000000 5489
074 M000000 793
074 N000000 481204
074 O000000 21413
074 P000000 866
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 7442
074 S000000 0
074 T000000 451483
074 U010000 48774
074 U020000 674
074 V010000 9.13
074 V020000 9.10
074 W000000 0.0000
074 X000000 32868
074 Y000000 0
075 A000000 0
075 B000000 445394
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 Q010000 Y
078 000000 N
080 A000000 FEDERAL INSURANCE COMPANY
080 B000000 NATIONAL UNION FIRE INSURANCE COMPANY
080 C000000 50000
081 A000000 Y
081 B000000 85
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
<PAGE> PAGE 9
084 B000000 0
085 A000000 Y
085 B000000 N
086 A010000 0
086 A020000 0
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
SIGNATURE GORDON H. SILVER
TITLE VICE PRESIDENT
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM Putnam Managed Income Trust Class A AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> SEMI
<FISCAL-YEAR-END> OCT-31-1995
<PERIOD-END> APR-30-1995
<INVESTMENTS-AT-COST> 456,955,930
<INVESTMENTS-AT-VALUE> 464,816,014
<RECEIVABLES> 16,388,398
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 481,204,412
<PAYABLE-FOR-SECURITIES> 21,412,534
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8,308,668
<TOTAL-LIABILITIES> 29,721,202
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 451,122,607
<SHARES-COMMON-STOCK> 48,773,983
<SHARES-COMMON-PRIOR> 52,429,311
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (931,464)
<ACCUMULATED-NET-GAINS> (6,607,974)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,900,041
<NET-ASSETS> 451,483,210
<DIVIDEND-INCOME> 3,966,572
<INTEREST-INCOME> 9,831,342
<OTHER-INCOME> 0
<EXPENSES-NET> 2,366,344
<NET-INVESTMENT-INCOME> 11,431,570
<REALIZED-GAINS-CURRENT> (6,264,079)
<APPREC-INCREASE-CURRENT> 29,336,993
<NET-CHANGE-FROM-OPS> 34,522,697
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (12,243,245)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 821,486
<NUMBER-OF-SHARES-REDEEMED> (5,315,136)
<SHARES-REINVESTED> 838,322
<NET-CHANGE-IN-ASSETS> (8,012,511)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (339,626)
<GROSS-ADVISORY-FEES> 1,435,630
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,366,344
<AVERAGE-NET-ASSETS> 445,394,146
<PER-SHARE-NAV-BEGIN> 8.68
<PER-SHARE-NII> (.22)
<PER-SHARE-GAIN-APPREC> .47
<PER-SHARE-DIVIDEND> (.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.13
<EXPENSE-RATIO> .52
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM Putnam Managed Income Trust Class B AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> SEMI
<FISCAL-YEAR-END> OCT-31-1995
<PERIOD-END> APR-30-1995
<INVESTMENTS-AT-COST> 456,955,930
<INVESTMENTS-AT-VALUE> 464,816,014
<RECEIVABLES> 16,388,398
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 481,204,412
<PAYABLE-FOR-SECURITIES> 21,412,534
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8,308,668
<TOTAL-LIABILITIES> 29,721,202
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 451,122,607
<SHARES-COMMON-STOCK> 670,248
<SHARES-COMMON-PRIOR> 483,994
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (931,464)
<ACCUMULATED-NET-GAINS> (6,607,974)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,900,041
<NET-ASSETS> 451,483,210
<DIVIDEND-INCOME> 3,966,572
<INTEREST-INCOME> 9,831,342
<OTHER-INCOME> 0
<EXPENSES-NET> 2,366,344
<NET-INVESTMENT-INCOME> 11,431,570
<REALIZED-GAINS-CURRENT> (6,264,079)
<APPREC-INCREASE-CURRENT> 29,336,993
<NET-CHANGE-FROM-OPS> 34,522,697
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (119,789)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 275,160
<NUMBER-OF-SHARES-REDEEMED> (97,063)
<SHARES-REINVESTED> 8,157
<NET-CHANGE-IN-ASSETS> (8,012,511)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (339,626)
<GROSS-ADVISORY-FEES> 1,435,630
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,366,344
<AVERAGE-NET-ASSETS> 0
<PER-SHARE-NAV-BEGIN> 8.67
<PER-SHARE-NII> .18
<PER-SHARE-GAIN-APPREC> .46
<PER-SHARE-DIVIDEND> (.21)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.10
<EXPENSE-RATIO> .89
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM Putnam Managed Income Trust Class M AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> SEMI
<FISCAL-YEAR-END> OCT-31-1995
<PERIOD-END> APR-30-1995
<INVESTMENTS-AT-COST> 456,955,930
<INVESTMENTS-AT-VALUE> 464,816,014
<RECEIVABLES> 16,388,398
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 481,204,412
<PAYABLE-FOR-SECURITIES> 21,412,534
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8,308,668
<TOTAL-LIABILITIES> 29,721,202
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 451,122,607
<SHARES-COMMON-STOCK> 4,825
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (931,464)
<ACCUMULATED-NET-GAINS> (6,607,974)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,900,041
<NET-ASSETS> 451,483,210
<DIVIDEND-INCOME> 3,966,572
<INTEREST-INCOME> 9,831,342
<OTHER-INCOME> 0
<EXPENSES-NET> 2,366,344
<NET-INVESTMENT-INCOME> 11,431,570
<REALIZED-GAINS-CURRENT> (6,264,079)
<APPREC-INCREASE-CURRENT> 29,336,993
<NET-CHANGE-FROM-OPS> 34,522,697
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4,825
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (8,012,511)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (339,626)
<GROSS-ADVISORY-FEES> 1,435,630
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,366,344
<AVERAGE-NET-ASSETS> 5,293
<PER-SHARE-NAV-BEGIN> 8.88
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> .22
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.12
<EXPENSE-RATIO> .64
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
