<PAGE> PAGE 1
000 A000000 09/30/99
000 C000000 787980
000 D000000 N
000 E000000 F
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 STATE STREET RESEARCH INCOME TRUST
001 B000000 811-4559
001 C000000 6173577800
002 A000000 ONE FINANCIAL CENTER
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
002 D020000 2690
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 2
007 C010100 1
007 C020100 STATE STREET RESEARCH HIGH INCOME FUND
007 C030100 N
007 C010200 2
007 C010300 3
007 C020300 STATE STREET RESEARCH STRAT GROWTH & INCOME
007 C030300 N
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 STATE STREET RESEARCH & MANAGEMENT CO.
008 B00AA01 A
008 C00AA01 801-18538
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02111
008 D04AA01 2690
011 A00AA01 STATE STREET RESEARCH INVESTMENT SERVICES,INC
011 B00AA01 8-2646868
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02111
011 C04AA01 2690
012 A00AA01 STATE STREET RESEARCH SERVICE CENTER
<PAGE> PAGE 2
012 B00AA01 85-26468
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02111
012 C04AA01 2690
013 A00AA01 PRICEWATERHOUSECOOPERS LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
014 A00AA01 STATE STREET RESEARCH INVESTMENT SERVICES INC
014 B00AA01 8-35442
014 A00AA02 METROPOLITAN LIFE INSURANCE COMPANY
014 B00AA02 8-14901
014 A00AA03 DELETE
014 A00AA04 DELETE
014 A00AA05 DELETE
015 A00AA01 STATE STREET BANK AND TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 22
019 C00AA00 STATESTRES
020 A000001 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP
020 B000001 13-2741729
020 C000001 26
020 A000002 SMITH BARNEY INC
020 B000002 13-1912900
020 C000002 22
020 A000003 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC.
020 B000003 13-5674085
020 C000003 20
020 A000004 LEHMAN BROTHERS, INC.
020 B000004 13-2518466
020 C000004 18
020 A000005 MORGAN STANLEY & CO, INC
020 B000005 13-2655998
020 C000005 16
020 A000006 CS FIRST BOSTON CORP
020 B000006 13-5659485
020 C000006 15
020 A000007 SANFORD C. BERNSTEIN
020 B000007 13-2625874
020 C000007 14
020 A000008 RAYMOND JAMES & ASSOCIATES
020 B000008 59-1531281
020 C000008 12
020 A000009 DRESDNER KLEINWORT BENSON LLC
<PAGE> PAGE 3
020 B000009 13-3894311
020 C000009 12
020 A000010 SOUNDVIEW TECHNOLOGY GROUP, INC.
020 B000010 13-2998183
020 C000010 12
021 000000 458
022 A000001 GOLDMAN SACHS & CO
022 B000001 13-5108880
022 C000001 10439
022 D000001 0
022 A000002 FURMAN, SELZ, MAGERDIETZ
022 C000002 2952
022 D000002 0
022 A000003 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP
022 B000003 13-2741729
022 C000003 1866
022 D000003 0
022 A000004 DRESDNER KLEINWORT BENSON LLC.
022 B000004 13-3894311
022 C000004 1635
022 D000004 0
022 A000005 MERRILL LYNCH , PIERCE, FENNER & SMITH, INC
022 B000005 13-5674085
022 C000005 1557
022 D000005 0
022 A000006 MORGAN STANLEY & CO, INC
022 B000006 13-2655998
022 C000006 1461
022 D000006 0
022 A000007 CANTOR FITZGERALD & CO
022 B000007 13-3680184
022 C000007 1420
022 D000007 0
022 A000008 BANCBOSTON ROBERSTON STEPHENS
022 B000008 04-2472499
022 C000008 1299
022 D000008 0
022 A000009 WILLIAM BLAIR AND CO.
022 B000009 36-2214610
022 C000009 1250
022 D000009 0
022 A000010 RYAN, BECK & CO
022 B000010 22-1773796
022 C000010 1242
022 D000010 0
023 C000000 35816
023 D000000 63
024 00AA00 Y
026 A000000 N
026 B000000 Y
026 C000000 Y
<PAGE> PAGE 4
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 2500
077 A000000 Y
077 B000000 N
077 C000000 Y
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 Y
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
078 000000 N
080 A00AA00 FEDERAL INSURANCE COMPANY
080 C00AA00 25000
081 A00AA00 Y
081 B00AA00 35
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
<PAGE> PAGE 5
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
025 A000101 DELETE
025 D000101 0
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 16054
028 A020100 4953
028 A030100 0
028 A040100 26592
028 B010100 12870
028 B020100 4937
028 B030100 0
028 B040100 21574
028 C010100 11972
028 C020100 4923
028 C030100 0
028 C040100 19287
028 D010100 11964
028 D020100 4898
028 D030100 0
028 D040100 23808
028 E010100 12964
028 E020100 4843
028 E030100 0
028 E040100 29011
028 F010100 13272
028 F020100 6404
028 F030100 0
028 F040100 28437
028 G010100 79096
028 G020100 30958
028 G030100 0
028 G040100 148709
028 H000100 13724
029 000100 Y
030 A000100 925
030 B000100 4.50
030 C000100 0.00
<PAGE> PAGE 6
031 A000100 113
031 B000100 0
032 000100 211
033 000100 601
034 000100 Y
035 000100 427
036 A000100 N
036 B000100 0
037 000100 N
038 000100 0
039 000100 N
040 000100 Y
041 000100 Y
042 A000100 1
042 B000100 0
042 C000100 0
042 D000100 94
042 E000100 2
042 F000100 0
042 G000100 3
042 H000100 0
043 000100 2682
044 000100 656
045 000100 Y
046 000100 N
047 000100 Y
048 000100 0.000
048 A010100 500000
048 A020100 0.600
048 B010100 500000
048 B020100 0.550
048 C010100 0
048 C020100 0.550
048 D010100 0
048 D020100 0.550
048 E010100 0
048 E020100 0.550
048 F010100 0
048 F020100 0.550
048 G010100 0
048 G020100 0.550
048 H010100 0
048 H020100 0.550
048 I010100 0
048 I020100 0.550
048 J010100 0
048 J020100 0.550
048 K010100 0
048 K020100 0.500
049 000100 N
050 000100 N
<PAGE> PAGE 7
051 000100 N
052 000100 N
053 A000100 Y
053 B000100 Y
053 C000100 N
054 A000100 Y
054 B000100 Y
054 C000100 N
054 D000100 N
054 E000100 N
054 F000100 N
054 G000100 Y
054 H000100 Y
054 I000100 N
054 J000100 Y
054 K000100 N
054 L000100 N
054 M000100 Y
054 N000100 N
054 O000100 N
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 0.0
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 2.6
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 81.1
062 Q000100 0.0
062 R000100 16.3
063 A000100 0
063 B000100 7.8
066 A000100 N
067 000100 N
068 A000100 N
068 B000100 N
069 000100 N
070 A010100 Y
070 A020100 N
070 B010100 Y
070 B020100 N
070 C010100 Y
070 C020100 N
<PAGE> PAGE 8
070 D010100 Y
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 Y
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 Y
070 H020100 N
070 I010100 Y
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
070 M010100 Y
070 M020100 Y
070 N010100 Y
070 N020100 Y
070 O010100 Y
070 O020100 N
070 P010100 N
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 323300
071 B000100 362518
071 C000100 1012832
071 D000100 32
072 A000100 6
072 B000100 49009
072 C000100 5706
072 D000100 0
072 E000100 0
072 F000100 3016
072 G000100 0
072 H000100 0
072 I000100 823
072 J000100 131
072 K000100 0
072 L000100 49
072 M000100 12
072 N000100 115
072 O000100 0
072 P000100 0
072 Q000100 0
<PAGE> PAGE 9
072 R000100 23
072 S000100 35
072 T000100 2682
072 U000100 0
072 V000100 0
072 W000100 14
072 X000100 6900
072 Y000100 0
072 Z000100 47815
072AA000100 0
072BB000100 35222
072CC010100 0
072CC020100 23206
072DD010100 48643
072DD020100 0
072EE000100 0
073 A010100 0.2700
073 A020100 0.2400
073 B000100 0.0000
073 C000100 0.0000
074 A000100 1
074 B000100 0
074 C000100 26940
074 D000100 801175
074 E000100 102041
074 F000100 58475
074 G000100 0
074 H000100 0
074 I000100 27723
074 J000100 2929
074 K000100 0
074 L000100 23723
074 M000100 42
074 N000100 1043049
074 O000100 20822
074 P000100 642
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 33400
074 S000100 0
074 T000100 988185
074 U010100 185701
074 U020100 0
074 V010100 5.33
074 V020100 5.29
074 W000100 0.0000
074 X000100 44009
074 Y000100 0
075 A000100 0
<PAGE> PAGE 10
075 B000100 1054347
076 000100 0.00
025 A000301 MORGAN STANLEY & CO. INC
025 B000301 13-2655998
025 C000301 D
025 D000301 330
025 A000302 DELETE
025 D000302 0
025 A000303 DELETE
025 D000303 0
025 A000304 DELETE
025 D000304 0
025 D000305 0
025 D000306 0
025 D000307 0
025 D000308 0
028 A010300 7443
028 A020300 0
028 A030300 0
028 A040300 18909
028 B010300 5216
028 B020300 2396
028 B030300 0
028 B040300 13225
028 C010300 5487
028 C020300 2517
028 C030300 0
028 C040300 12625
028 D010300 5518
028 D020300 0
028 D030300 0
028 D040300 13450
028 E010300 4838
028 E020300 0
028 E030300 0
028 E040300 14165
028 F010300 4286
028 F020300 2506
028 F030300 0
028 F040300 10942
028 G010300 32788
028 G020300 7419
028 G030300 0
028 G040300 83316
028 H000300 3560
029 000300 Y
030 A000300 373
030 B000300 5.75
030 C000300 0.00
031 A000300 41
031 B000300 0
<PAGE> PAGE 11
032 000300 60
033 000300 272
034 000300 Y
035 000300 363
036 A000300 N
036 B000300 0
037 000300 N
038 000300 0
039 000300 N
040 000300 Y
041 000300 Y
042 A000300 0
042 B000300 0
042 C000300 0
042 D000300 95
042 E000300 1
042 F000300 0
042 G000300 4
042 H000300 0
043 000300 2350
044 000300 53
045 000300 Y
046 000300 N
047 000300 Y
048 000300 0.000
048 A010300 500
048 A020300 0.750
048 B010300 500
048 B020300 0.700
048 C010300 0
048 C020300 0.700
048 D010300 0
048 D020300 0.700
048 E010300 0
048 E020300 0.700
048 F010300 0
048 F020300 0.700
048 G010300 0
048 G020300 0.700
048 H010300 0
048 H020300 0.700
048 I010300 0
048 I020300 0.700
048 J010300 0
048 J020300 0.700
048 K010300 0
048 K020300 0.650
049 000300 N
050 000300 N
051 000300 N
052 000300 N
<PAGE> PAGE 12
053 A000300 Y
053 B000300 Y
053 C000300 N
054 A000300 Y
054 B000300 Y
054 C000300 N
054 D000300 N
054 E000300 N
054 F000300 N
054 G000300 Y
054 H000300 Y
054 I000300 N
054 J000300 Y
054 K000300 N
054 L000300 N
054 M000300 Y
054 N000300 N
054 O000300 N
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 0.0
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 6.3
062 J000300 0.0
062 K000300 0.0
062 L000300 0.0
062 M000300 2.2
062 N000300 10.0
062 O000300 0.0
062 P000300 10.2
062 Q000300 12.1
062 R000300 59.2
063 A000300 0
063 B000300 9.0
066 A000300 Y
066 B000300 N
066 C000300 N
066 D000300 N
066 E000300 N
066 F000300 N
066 G000300 Y
067 000300 Y
068 A000300 N
068 B000300 N
069 000300 N
070 A010300 Y
070 A020300 N
<PAGE> PAGE 13
070 B010300 Y
070 B020300 N
070 C010300 Y
070 C020300 N
070 D010300 Y
070 D020300 N
070 E010300 Y
070 E020300 Y
070 F010300 Y
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 Y
070 H020300 N
070 I010300 Y
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 N
070 L010300 Y
070 L020300 Y
070 M010300 Y
070 M020300 Y
070 N010300 Y
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 N
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 376246
071 B000300 437519
071 C000300 690099
071 D000300 55
072 A000300 6
072 B000300 9397
072 C000300 1998
072 D000300 0
072 E000300 0
072 F000300 2625
072 G000300 0
072 H000300 0
072 I000300 699
072 J000300 232
072 K000300 0
072 L000300 33
072 M000300 16
<PAGE> PAGE 14
072 N000300 74
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 16
072 S000300 11
072 T000300 2350
072 U000300 0
072 V000300 0
072 W000300 16
072 X000300 6072
072 Y000300 0
072 Z000300 5323
072AA000300 9028
072BB000300 0
072CC010300 0
072CC020300 7595
072DD010300 5182
072DD020300 0
072EE000300 2485
073 A010300 0.1100
073 A020300 0.0600
073 B000300 0.0400
073 C000300 0.0000
074 A000300 1
074 B000300 0
074 C000300 56840
074 D000300 233013
074 E000300 0
074 F000300 400124
074 G000300 0
074 H000300 0
074 I000300 72636
074 J000300 17666
074 K000300 0
074 L000300 3971
074 M000300 16
074 N000300 784267
074 O000300 32449
074 P000300 873
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 75665
074 S000300 0
074 T000300 675280
074 U010300 65260
074 U020300 0
074 V010300 10.37
074 V020300 10.32
<PAGE> PAGE 15
074 W000300 0.0000
074 X000300 45539
074 Y000300 0
075 A000300 0
075 B000300 714483
076 000300 0.00
SIGNATURE DOUGLAS A. ROMICH
TITLE ASSISTANT TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 011
<NAME> STATE STREET RESEARCH HIGH INCOME FUND CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1,130,306,963
<INVESTMENTS-AT-VALUE> 1,016,354,178
<RECEIVABLES> 26,651,942
<ASSETS-OTHER> 42,883
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,043,049,003
<PAYABLE-FOR-SECURITIES> 20,822,054
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,042,332
<TOTAL-LIABILITIES> 54,864,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,151,451,404
<SHARES-COMMON-STOCK> 109,893,342
<SHARES-COMMON-PRIOR> 114,689,932
<ACCUMULATED-NII-CURRENT> 1,845,763
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (50,998,764)
<ACCUM-APPREC-OR-DEPREC> (114,113,786)
<NET-ASSETS> 988,184,617
<DIVIDEND-INCOME> 5,706,029
<INTEREST-INCOME> 49,008,804
<OTHER-INCOME> 0
<EXPENSES-NET> 6,900,047
<NET-INVESTMENT-INCOME> 47,814,786
<REALIZED-GAINS-CURRENT> (35,221,740)
<APPREC-INCREASE-CURRENT> (23,205,665)
<NET-CHANGE-FROM-OPS> (10,612,619)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (29,654,247)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7,373,435
<NUMBER-OF-SHARES-REDEEMED> (15,678,028)
<SHARES-REINVESTED> 3,508,003
<NET-CHANGE-IN-ASSETS> (97,911,353)
<ACCUMULATED-NII-PRIOR> 2,674,214
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 15,777,024
<GROSS-ADVISORY-FEES> 3,016,167
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,933,815
<AVERAGE-NET-ASSETS> 1,054,347,317
<PER-SHARE-NAV-BEGIN> 5.65
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> (0.32)
<PER-SHARE-DIVIDEND> (0.26)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.33
<EXPENSE-RATIO> 1.06
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 012
<NAME> STATE STREET RESEARCH HIGH INCOME FUND CLASS B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1,130,306,963
<INVESTMENTS-AT-VALUE> 1,016,354,178
<RECEIVABLES> 26,651,942
<ASSETS-OTHER> 42,883
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,043,049,003
<PAYABLE-FOR-SECURITIES> 20,822,054
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,042,332
<TOTAL-LIABILITIES> 54,864,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,151,451,404
<SHARES-COMMON-STOCK> 54,445,815
<SHARES-COMMON-PRIOR> 59,860,235
<ACCUMULATED-NII-CURRENT> 1,845,763
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (50,998,764)
<ACCUM-APPREC-OR-DEPREC> (114,113,786)
<NET-ASSETS> 988,184,617
<DIVIDEND-INCOME> 5,706,029
<INTEREST-INCOME> 49,008,804
<OTHER-INCOME> 0
<EXPENSES-NET> 6,900,047
<NET-INVESTMENT-INCOME> 47,814,786
<REALIZED-GAINS-CURRENT> (35,221,740)
<APPREC-INCREASE-CURRENT> (23,205,665)
<NET-CHANGE-FROM-OPS> (10,612,619)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (13,906,572)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,068,759
<NUMBER-OF-SHARES-REDEEMED> (7,893,686)
<SHARES-REINVESTED> 1,410,507
<NET-CHANGE-IN-ASSETS> (97,911,353)
<ACCUMULATED-NII-PRIOR> 2,674,214
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 15,777,024
<GROSS-ADVISORY-FEES> 3,016,167
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,933,815
<AVERAGE-NET-ASSETS> 1,054,347,317
<PER-SHARE-NAV-BEGIN> 5.62
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> (0.32)
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.30
<EXPENSE-RATIO> 1.81
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 013
<NAME> STATE STREET RESEARCH HIGH INCOME FUND CLASS S
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1,130,306,963
<INVESTMENTS-AT-VALUE> 1,016,354,178
<RECEIVABLES> 26,651,942
<ASSETS-OTHER> 42,883
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,043,049,003
<PAYABLE-FOR-SECURITIES> 20,822,054
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,042,332
<TOTAL-LIABILITIES> 54,864,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,151,451,404
<SHARES-COMMON-STOCK> 8,833,710
<SHARES-COMMON-PRIOR> 8,620,570
<ACCUMULATED-NII-CURRENT> 1,845,763
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 50,998,764
<ACCUM-APPREC-OR-DEPREC> (114,113,786)
<NET-ASSETS> 988,184,617
<DIVIDEND-INCOME> 5,706,029
<INTEREST-INCOME> 49,008,804
<OTHER-INCOME> 0
<EXPENSES-NET> 6,900,047
<NET-INVESTMENT-INCOME> 47,814,786
<REALIZED-GAINS-CURRENT> (35,221,740)
<APPREC-INCREASE-CURRENT> (23,205,665)
<NET-CHANGE-FROM-OPS> (10,612,619)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,348,770)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 175,148
<NUMBER-OF-SHARES-REDEEMED> (380,106)
<SHARES-REINVESTED> 418,098
<NET-CHANGE-IN-ASSETS> (97,911,353)
<ACCUMULATED-NII-PRIOR> 2,674,214
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 15,777,024
<GROSS-ADVISORY-FEES> 3,016,167
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,933,815
<AVERAGE-NET-ASSETS> 1,054,347,317
<PER-SHARE-NAV-BEGIN> 5.61
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> (0.32)
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.29
<EXPENSE-RATIO> 0.81
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 014
<NAME> STATE STREET RESEARCH HIGH INCOME FUND CLASS C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1,130,306,963
<INVESTMENTS-AT-VALUE> 1,016,354,178
<RECEIVABLES> 26,651,942
<ASSETS-OTHER> 42,883
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,043,049,003
<PAYABLE-FOR-SECURITIES> 20,822,054
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,042,332
<TOTAL-LIABILITIES> 54,864,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,151,451,404
<SHARES-COMMON-STOCK> 6,715,185
<SHARES-COMMON-PRIOR> 7,169,487
<ACCUMULATED-NII-CURRENT> 1,845,763
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (50,998,764)
<ACCUM-APPREC-OR-DEPREC> (114,113,786)
<NET-ASSETS> 988,184,617
<DIVIDEND-INCOME> 5,706,029
<INTEREST-INCOME> 49,008,804
<OTHER-INCOME> 0
<EXPENSES-NET> 6,900,047
<NET-INVESTMENT-INCOME> 47,814,786
<REALIZED-GAINS-CURRENT> (35,221,740)
<APPREC-INCREASE-CURRENT> (23,205,665)
<NET-CHANGE-FROM-OPS> (10,612,619)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,728,142)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,702,073
<NUMBER-OF-SHARES-REDEEMED> (2,323,997)
<SHARES-REINVESTED> 167,622
<NET-CHANGE-IN-ASSETS> (97,911,353)
<ACCUMULATED-NII-PRIOR> 2,674,214
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 15,777,024
<GROSS-ADVISORY-FEES> 3,016,167
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,933,815
<AVERAGE-NET-ASSETS> 1,054,347,317
<PER-SHARE-NAV-BEGIN> 5.62
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> (0.31)
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.31
<EXPENSE-RATIO> 1.81
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 015
<NAME> STATE STREET RESEARCH HIGH INCOME FUND CLASS B1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 1,130,306,963
<INVESTMENTS-AT-VALUE> 1,016,354,178
<RECEIVABLES> 26,651,942
<ASSETS-OTHER> 42,883
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,043,049,003
<PAYABLE-FOR-SECURITIES> 20,822,054
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,042,332
<TOTAL-LIABILITIES> 54,864,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,151,451,404
<SHARES-COMMON-STOCK> 5,812,718
<SHARES-COMMON-PRIOR> 2,267,532
<ACCUMULATED-NII-CURRENT> 1,845,763
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (50,998,764)
<ACCUM-APPREC-OR-DEPREC> (114,113,786)
<NET-ASSETS> 988,184,617
<DIVIDEND-INCOME> 5,706,029
<INTEREST-INCOME> 49,008,804
<OTHER-INCOME> 0
<EXPENSES-NET> 6,900,047
<NET-INVESTMENT-INCOME> 47,814,786
<REALIZED-GAINS-CURRENT> (35,221,740)
<APPREC-INCREASE-CURRENT> (23,205,665)
<NET-CHANGE-FROM-OPS> (10,612,619)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,005,506)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,926,571
<NUMBER-OF-SHARES-REDEEMED> (481,261)
<SHARES-REINVESTED> 99,876
<NET-CHANGE-IN-ASSETS> (97,911,353)
<ACCUMULATED-NII-PRIOR> 2,674,214
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 15,777,024
<GROSS-ADVISORY-FEES> 3,016,167
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,933,815
<AVERAGE-NET-ASSETS> 1,054,347,317
<PER-SHARE-NAV-BEGIN> 5.62
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> (0.32)
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 5.29
<EXPENSE-RATIO> 1.81
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 031
<NAME> STATE STREET RESEARCH STRATEGIC GROWTH & INCOME FUND CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 708,649,963
<INVESTMENTS-AT-VALUE> 762,613,313
<RECEIVABLES> 21,637,422
<ASSETS-OTHER> 16,444
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 784,267,179
<PAYABLE-FOR-SECURITIES> 32,448,537
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,538,737
<TOTAL-LIABILITIES> 108,987,274
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 614,465,927
<SHARES-COMMON-STOCK> 27,854,288
<SHARES-COMMON-PRIOR> 29,778,612
<ACCUMULATED-NII-CURRENT> 1,685,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 6,688,287
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 52,440,679
<NET-ASSETS> 675,279,905
<DIVIDEND-INCOME> 1,998,014
<INTEREST-INCOME> 9,396,559
<OTHER-INCOME> 0
<EXPENSES-NET> 6,071,806
<NET-INVESTMENT-INCOME> 5,322,767
<REALIZED-GAINS-CURRENT> 9,028,439
<APPREC-INCREASE-CURRENT> (7,595,315)
<NET-CHANGE-FROM-OPS> 6,755,891
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,825,880)
<DISTRIBUTIONS-OF-GAINS> (1,065,884)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,079,063
<NUMBER-OF-SHARES-REDEEMED> (3,357,988)
<SHARES-REINVESTED> 354,601
<NET-CHANGE-IN-ASSETS> (43,947,500)
<ACCUMULATED-NII-PRIOR> 1,544,151
<ACCUMULATED-GAINS-PRIOR> 144,809
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,625,316
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,104,588
<AVERAGE-NET-ASSETS> 714,483,308
<PER-SHARE-NAV-BEGIN> 10.40
<PER-SHARE-NII> 0.10
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> (0.10)
<PER-SHARE-DISTRIBUTIONS> (0.04)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.37
<EXPENSE-RATIO> 1.30
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 032
<NAME> STATE STREET RESEARCH STRATEGIC GROWTH & INCOME FUND CLASS B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 708,649,963
<INVESTMENTS-AT-VALUE> 762,613,313
<RECEIVABLES> 21,637,422
<ASSETS-OTHER> 16,444
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 784,267,179
<PAYABLE-FOR-SECURITIES> 32,448,537
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,538,737
<TOTAL-LIABILITIES> 108,987,274
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 614,465,927
<SHARES-COMMON-STOCK> 32,033,386
<SHARES-COMMON-PRIOR> 35,086,230
<ACCUMULATED-NII-CURRENT> 1,685,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 6,688,287
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 52,440,679
<NET-ASSETS> 675,279,905
<DIVIDEND-INCOME> 1,998,014
<INTEREST-INCOME> 9,396,559
<OTHER-INCOME> 0
<EXPENSES-NET> 6,071,806
<NET-INVESTMENT-INCOME> 5,322,767
<REALIZED-GAINS-CURRENT> 9,028,439
<APPREC-INCREASE-CURRENT> (7,595,315)
<NET-CHANGE-FROM-OPS> 6,755,891
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,962,846)
<DISTRIBUTIONS-OF-GAINS> (1,246,379)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 225,047
<NUMBER-OF-SHARES-REDEEMED> (3,572,003)
<SHARES-REINVESTED> 294,112
<NET-CHANGE-IN-ASSETS> (43,947,500)
<ACCUMULATED-NII-PRIOR> 1,544,151
<ACCUMULATED-GAINS-PRIOR> 144,809
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,625,316
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,104,588
<AVERAGE-NET-ASSETS> 714,483,308
<PER-SHARE-NAV-BEGIN> 10.36
<PER-SHARE-NII> 0.06
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> (0.06)
<PER-SHARE-DISTRIBUTIONS> (0.04)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.33
<EXPENSE-RATIO> 2.05
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 033
<NAME> STATE STREET RESEARCH STRATEGIC GROWTH & INCOME FUND CLASS S
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 708,649,963
<INVESTMENTS-AT-VALUE> 762,613,313
<RECEIVABLES> 21,637,422
<ASSETS-OTHER> 16,444
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 784,267,179
<PAYABLE-FOR-SECURITIES> 32,448,537
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,538,737
<TOTAL-LIABILITIES> 108,987,274
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 614,465,927
<SHARES-COMMON-STOCK> 1,275,412
<SHARES-COMMON-PRIOR> 1,456,078
<ACCUMULATED-NII-CURRENT> 1,685,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 6,688,287
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 52,440,679
<NET-ASSETS> 675,279,905
<DIVIDEND-INCOME> 1,998,014
<INTEREST-INCOME> 9,396,559
<OTHER-INCOME> 0
<EXPENSES-NET> 6,071,806
<NET-INVESTMENT-INCOME> 5,322,767
<REALIZED-GAINS-CURRENT> 9,028,439
<APPREC-INCREASE-CURRENT> (7,595,315)
<NET-CHANGE-FROM-OPS> 6,755,891
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (148,785)
<DISTRIBUTIONS-OF-GAINS> (52,203)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 157,021
<NUMBER-OF-SHARES-REDEEMED> (356,502)
<SHARES-REINVESTED> 18,815
<NET-CHANGE-IN-ASSETS> (43,947,500)
<ACCUMULATED-NII-PRIOR> 1,544,151
<ACCUMULATED-GAINS-PRIOR> 144,809
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,625,316
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,104,588
<AVERAGE-NET-ASSETS> 714,483,308
<PER-SHARE-NAV-BEGIN> 10.40
<PER-SHARE-NII> 0.11
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> (0.11)
<PER-SHARE-DISTRIBUTIONS> (0.04)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.37
<EXPENSE-RATIO> 1.05
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 034
<NAME> STATE STREET RESEARCH STRATEGIC GROWTH & INCOME FUND CLASS C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 708,649,963
<INVESTMENTS-AT-VALUE> 762,613,313
<RECEIVABLES> 21,637,422
<ASSETS-OTHER> 16,444
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 784,267,179
<PAYABLE-FOR-SECURITIES> 32,448,537
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,538,737
<TOTAL-LIABILITIES> 108,987,274
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 614,465,927
<SHARES-COMMON-STOCK> 1,741,176
<SHARES-COMMON-PRIOR> 1,976,716
<ACCUMULATED-NII-CURRENT> 1,685,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 6,688,287
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 52,440,679
<NET-ASSETS> 675,279,905
<DIVIDEND-INCOME> 1,998,014
<INTEREST-INCOME> 9,396,559
<OTHER-INCOME> 0
<EXPENSES-NET> 6,071,806
<NET-INVESTMENT-INCOME> 5,322,767
<REALIZED-GAINS-CURRENT> 9,028,439
<APPREC-INCREASE-CURRENT> (7,595,315)
<NET-CHANGE-FROM-OPS> 6,755,891
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (105,952)
<DISTRIBUTIONS-OF-GAINS> (68,666)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 95,591
<NUMBER-OF-SHARES-REDEEMED> (344,428)
<SHARES-REINVESTED> 13,297
<NET-CHANGE-IN-ASSETS> (43,947,500)
<ACCUMULATED-NII-PRIOR> 1,544,151
<ACCUMULATED-GAINS-PRIOR> 144,809
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,625,316
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,104,588
<AVERAGE-NET-ASSETS> 714,483,308
<PER-SHARE-NAV-BEGIN> 10.38
<PER-SHARE-NII> 0.06
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> (0.06)
<PER-SHARE-DISTRIBUTIONS> (0.04)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.35
<EXPENSE-RATIO> 2.05
[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
<CIK> 0000787980
<NAME> STATE STREET RESEARCH INCOME TRUST
<SERIES>
<NUMBER> 035
<NAME> STATE STREET RESEARCH STRATEGIC GROWTH & INCOME FUND CLASS B(1)
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-END> SEP-30-1999
<INVESTMENTS-AT-COST> 708,649,963
<INVESTMENTS-AT-VALUE> 762,613,313
<RECEIVABLES> 21,637,422
<ASSETS-OTHER> 16,444
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 784,267,179
<PAYABLE-FOR-SECURITIES> 32,448,537
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,538,737
<TOTAL-LIABILITIES> 108,987,274
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 614,465,927
<SHARES-COMMON-STOCK> 2,355,996
<SHARES-COMMON-PRIOR> 993,052
<ACCUMULATED-NII-CURRENT> 1,685,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 6,688,287
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 52,440,679
<NET-ASSETS> 675,279,905
<DIVIDEND-INCOME> 1,998,014
<INTEREST-INCOME> 9,396,559
<OTHER-INCOME> 0
<EXPENSES-NET> 6,071,806
<NET-INVESTMENT-INCOME> 5,322,767
<REALIZED-GAINS-CURRENT> 9,028,439
<APPREC-INCREASE-CURRENT> (7,595,315)
<NET-CHANGE-FROM-OPS> 6,755,891
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (138,443)
<DISTRIBUTIONS-OF-GAINS> (51,829)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,521,173
<NUMBER-OF-SHARES-REDEEMED> (176,091)
<SHARES-REINVESTED> 17,862
<NET-CHANGE-IN-ASSETS> (43,947,500)
<ACCUMULATED-NII-PRIOR> 1,544,151
<ACCUMULATED-GAINS-PRIOR> 144,809
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,625,316
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6,104,588
<AVERAGE-NET-ASSETS> 714,483,308
<PER-SHARE-NAV-BEGIN> 10.36
<PER-SHARE-NII> 0.06
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> (0.07)
<PER-SHARE-DISTRIBUTIONS> (0.04)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.32
<EXPENSE-RATIO> 2.05
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>