<PAGE> PAGE 1
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<PAGE> PAGE 2
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 9
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<PAGE> PAGE 10
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015 A000201 STATE STREET BANK AND TRUST COMPANY
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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<PAGE> PAGE 14
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<PAGE> PAGE 15
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<PAGE> PAGE 16
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<PAGE> PAGE 17
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<PAGE> PAGE 18
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<PAGE> PAGE 19
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<PAGE> PAGE 20
015 A000405 THE CHASE MANHATTAN CORPORATION
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028 C020400 115
028 C030400 0
028 C040400 1596
028 D010400 966
028 D020400 117
028 D030400 0
028 D040400 4257
028 E010400 754
028 E020400 115
028 E030400 0
028 E040400 1398
028 F010400 803
028 F020400 115
028 F030400 0
028 F040400 2273
028 G010400 6670
028 G020400 586
028 G030400 0
028 G040400 11830
028 H000400 6412
029 000400 Y
030 A000400 287
030 B000400 4.50
030 C000400 0.00
<PAGE> PAGE 21
031 A000400 39
031 B000400 0
032 000400 248
033 000400 0
034 000400 Y
035 000400 127
036 A000400 Y
036 B000400 0
037 000400 N
038 000400 0
039 000400 N
040 000400 Y
041 000400 Y
042 A000400 0
042 B000400 0
042 C000400 100
042 D000400 0
042 E000400 0
042 F000400 0
042 G000400 0
042 H000400 0
043 000400 102
044 000400 0
055 A000400 Y
055 B000400 N
056 000400 N
057 000400 N
058 A000400 N
059 000400 Y
060 A000400 N
060 B000400 N
061 000400 1500
062 A000400 Y
062 B000400 0.0
062 C000400 0.0
062 D000400 0.0
062 E000400 4.4
062 F000400 0.0
062 G000400 0.0
062 H000400 0.0
062 I000400 0.0
062 J000400 0.0
062 K000400 0.0
062 L000400 0.0
062 M000400 0.0
062 N000400 0.0
062 O000400 97.1
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.0
063 A000400 0
<PAGE> PAGE 22
063 B000400 15.5
064 A000400 Y
064 B000400 N
070 A010400 Y
070 A020400 N
070 B010400 N
070 B020400 N
070 C010400 N
070 C020400 N
070 D010400 N
070 D020400 N
070 E010400 N
070 E020400 Y
070 F010400 N
070 F020400 N
070 G010400 N
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 Y
070 K010400 N
070 K020400 N
070 L010400 N
070 L020400 N
070 M010400 N
070 M020400 N
070 N010400 N
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400 26507
071 B000400 21642
071 C000400 55141
071 D000400 39
072 A000400 6
072 B000400 1680
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 122
072 G000400 74
072 H000400 0
<PAGE> PAGE 23
072 I000400 35
072 J000400 3
072 K000400 0
072 L000400 12
072 M000400 2
072 N000400 13
072 O000400 0
072 P000400 0
072 Q000400 30
072 R000400 7
072 S000400 2
072 T000400 240
072 U000400 0
072 V000400 0
072 W000400 6
072 X000400 546
072 Y000400 261
072 Z000400 1395
072AA000400 0
072BB000400 1571
072CC010400 0
072CC020400 700
072DD010400 643
072DD020400 752
072EE000400 0
073 A010400 0.2600
073 A020400 0.2200
073 B000400 0.0000
073 C000400 0.0000
074 A000400 36
074 B000400 0
074 C000400 2500
074 D000400 55170
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 0
074 K000400 0
074 L000400 887
074 M000400 0
074 N000400 58593
074 O000400 1509
074 P000400 0
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 281
074 S000400 0
<PAGE> PAGE 24
074 T000400 56803
074 U010400 2243
074 U020400 3371
074 V010400 10.12
074 V020400 10.12
074 W000400 0.0000
074 X000400 745
074 Y000400 0
075 A000400 0
075 B000400 61127
076 000400 0.00
015 A000501 STATE STREET BANK AND TRUST COMPANY
015 B000501 C
015 C010501 BOSTON
015 C020501 MA
015 C030501 02266
015 C040501 8600
015 E010501 X
015 A000502 PNC BANK, NA
015 B000502 S
015 C010502 PITTSBURGH
015 C020502 PA
015 C030502 15265
015 E010502 X
015 A000503 NATIONSBANK OF NORTH CAROLINA
015 B000503 S
015 C010503 CHARLOTTE
015 C020503 NC
015 C030503 28255
015 E010503 X
015 A000504 MORGAN GUARANTY BANK & TRUST CO.
015 B000504 S
015 C010504 NEW YORK
015 C020504 NY
015 C030504 10015
015 E010504 X
015 A000505 THE CHASE MANHATTAN CORPORATION
015 B000505 S
015 C010505 NEW YORK
015 C020505 NY
015 C030505 10006
015 E010505 X
015 A000506 BANK OF NEW YORK
015 B000506 S
015 C010506 NEW YORK
015 C020506 NY
015 C030506 10006
015 E010506 X
015 A000507 BANKERS TRUST CO.
015 B000507 S
015 C010507 NEW YORK
<PAGE> PAGE 25
015 C020507 NY
015 C030507 10015
015 E010507 X
028 A010500 258
028 A020500 13
028 A030500 0
028 A040500 225
028 B010500 59
028 B020500 31
028 B030500 0
028 B040500 480
028 C010500 431
028 C020500 31
028 C030500 0
028 C040500 885
028 D010500 755
028 D020500 29
028 D030500 0
028 D040500 653
028 E010500 37
028 E020500 29
028 E030500 0
028 E040500 427
028 F010500 120
028 F020500 28
028 F030500 0
028 F040500 255
028 G010500 1660
028 G020500 161
028 G030500 0
028 G040500 2925
028 H000500 1411
029 000500 Y
030 A000500 21
030 B000500 4.50
030 C000500 0.00
031 A000500 6
031 B000500 0
032 000500 15
033 000500 0
034 000500 Y
035 000500 0
036 A000500 N
036 B000500 0
037 000500 N
038 000500 0
039 000500 N
040 000500 Y
041 000500 Y
042 A000500 0
042 B000500 0
<PAGE> PAGE 26
042 C000500 100
042 D000500 0
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 58
044 000500 0
055 A000500 N
055 B000500 N
056 000500 N
057 000500 N
058 A000500 N
059 000500 Y
060 A000500 N
060 B000500 N
061 000500 1500
062 A000500 Y
062 B000500 0.0
062 C000500 0.0
062 D000500 0.0
062 E000500 4.9
062 F000500 0.0
062 G000500 0.0
062 H000500 0.0
062 I000500 0.0
062 J000500 0.0
062 K000500 0.0
062 L000500 0.0
062 M000500 0.0
062 N000500 0.0
062 O000500 93.5
062 P000500 0.0
062 Q000500 0.0
062 R000500 0.0
063 A000500 0
063 B000500 12.7
064 A000500 Y
064 B000500 N
070 A010500 N
070 A020500 N
070 B010500 N
070 B020500 N
070 C010500 N
070 C020500 N
070 D010500 N
070 D020500 N
070 E010500 Y
070 E020500 N
070 F010500 N
070 F020500 N
<PAGE> PAGE 27
070 G010500 N
070 G020500 N
070 H010500 N
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 N
070 K010500 N
070 K020500 N
070 L010500 N
070 L020500 N
070 M010500 N
070 M020500 N
070 N010500 N
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 Y
070 Q010500 N
070 Q020500 N
070 R010500 N
070 R020500 N
071 A000500 4466
071 B000500 6204
071 C000500 22035
071 D000500 20
072 A000500 6
072 B000500 697
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 46
072 G000500 56
072 H000500 0
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072 P000500 0
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072 R000500 6
072 S000500 2
072 T000500 86
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072 W000500 2
<PAGE> PAGE 28
072 X000500 253
072 Y000500 164
072 Z000500 608
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072CC020500 606
072DD010500 608
072DD020500 0
072EE000500 0
073 A010500 0.2600
073 A020500 0.0000
073 B000500 0.0000
073 C000500 0.0000
074 A000500 89
074 B000500 0
074 C000500 1100
074 D000500 20837
074 E000500 0
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074 J000500 0
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074 L000500 352
074 M000500 11
074 N000500 22389
074 O000500 0
074 P000500 0
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074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 96
074 S000500 0
074 T000500 22293
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074 V010500 9.95
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074 Y000500 0
075 A000500 0
075 B000500 23201
076 000500 0.00
015 A000601 STATE STREET BANK AND TRUST COMPANY
015 B000601 C
015 C010601 BOSTON
015 C020601 MA
<PAGE> PAGE 29
015 C030601 02266
015 C040601 8600
015 E010601 X
015 A000602 PNC BANK, NA
015 B000602 S
015 C010602 PITTSBURGH
015 C020602 PA
015 C030602 15265
015 E010602 X
015 A000603 NATIONSBANK OF NORTH CAROLINA
015 B000603 S
015 C010603 CHARLOTTE
015 C020603 NC
015 C030603 28255
015 E010603 X
015 A000604 MORGAN GUARANTY BANK & TRUST CO.
015 B000604 S
015 C010604 NEW YORK
015 C020604 NY
015 C030604 10015
015 E010604 X
015 A000605 THE CHASE MANHATTAN CORPORATION
015 B000605 S
015 C010605 NEW YORK
015 C020605 NY
015 C030605 10006
015 E010605 X
015 A000606 BANK OF NEW YORK
015 B000606 S
015 C010606 NEW YORK
015 C020606 NY
015 C030606 10006
015 E010606 X
015 A000607 BANKERS TRUST CO.
015 B000607 S
015 C010607 NEW YORK
015 C020607 NY
015 C030607 10015
015 E010607 X
028 A010600 350
028 A020600 0
028 A030600 0
028 A040600 691
028 B010600 686
028 B020600 13
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028 B040600 543
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028 C020600 20
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<PAGE> PAGE 30
028 D010600 2072
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028 E040600 409
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029 000600 Y
030 A000600 8
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032 000600 7
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034 000600 N
035 000600 0
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039 000600 N
040 000600 Y
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043 000600 51
044 000600 0
055 A000600 N
055 B000600 N
056 000600 N
057 000600 N
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061 000600 1500
<PAGE> PAGE 31
062 A000600 Y
062 B000600 0.0
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062 D000600 0.0
062 E000600 10.4
062 F000600 0.0
062 G000600 0.0
062 H000600 0.0
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062 J000600 0.0
062 K000600 0.0
062 L000600 2.7
062 M000600 0.0
062 N000600 0.0
062 O000600 90.5
062 P000600 0.0
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062 R000600 0.0
063 A000600 0
063 B000600 14.4
064 A000600 Y
064 B000600 N
070 A010600 Y
070 A020600 N
070 B010600 N
070 B020600 N
070 C010600 N
070 C020600 N
070 D010600 N
070 D020600 N
070 E010600 N
070 E020600 Y
070 F010600 N
070 F020600 N
070 G010600 N
070 G020600 N
070 H010600 N
070 H020600 N
070 I010600 N
070 I020600 N
070 J010600 Y
070 J020600 N
070 K010600 N
070 K020600 N
070 L010600 N
070 L020600 N
070 M010600 N
070 M020600 N
070 N010600 N
070 N020600 N
070 O010600 Y
<PAGE> PAGE 32
070 O020600 N
070 P010600 Y
070 P020600 Y
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070 Q020600 N
070 R010600 N
070 R020600 N
071 A000600 17375
071 B000600 19483
071 C000600 38267
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072 B000600 1115
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<PAGE> PAGE 33
074 D000600 37443
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075 B000600 40749
076 000600 0.00
SIGNATURE STEVE KEANE
TITLE GENERAL COUNSEL
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 041
<NAME> California Municipal Income Fund - Class A Shares
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 59,451,588
<INVESTMENTS-AT-VALUE> 57,669,869
<RECEIVABLES> 887,246
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 36,470
<TOTAL-ASSETS> 58,593,585
<PAYABLE-FOR-SECURITIES> 1,509,032
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 281,376
<TOTAL-LIABILITIES> 1,790,408
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 61,369,314
<SHARES-COMMON-STOCK> 2,242,988
<SHARES-COMMON-PRIOR> 2,674,691
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (2,782,480)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1,783,657)
<NET-ASSETS> 22,693,531
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,679,628
<OTHER-INCOME> 0
<EXPENSES-NET> (285,108)
<NET-INVESTMENT-INCOME> 1,394,520
<REALIZED-GAINS-CURRENT> (1,570,971)
<APPREC-INCREASE-CURRENT> (700,291)
<NET-CHANGE-FROM-OPS> (876,742)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (642,593)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 194,367
<NUMBER-OF-SHARES-REDEEMED> (647,387)
<SHARES-REINVESTED> 21,317
<NET-CHANGE-IN-ASSETS> (4,573,521)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1,211,509)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 121,587
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 546,011
<AVERAGE-NET-ASSETS> 25,791,093
<PER-SHARE-NAV-BEGIN> 10.490
<PER-SHARE-NII> 0.260
<PER-SHARE-GAIN-APPREC> (0.370)
<PER-SHARE-DIVIDEND> (0.260)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.120
<EXPENSE-RATIO> 0.50
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 042
<NAME> California Municipal Income Fund - Class B Shares
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 59,451,588
<INVESTMENTS-AT-VALUE> 57,669,869
<RECEIVABLES> 887,246
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 36,470
<TOTAL-ASSETS> 58,593,585
<PAYABLE-FOR-SECURITIES> 1,509,032
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 281,376
<TOTAL-LIABILITIES> 1,790,408
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 61,369,314
<SHARES-COMMON-STOCK> 3,371,213
<SHARES-COMMON-PRIOR> 3,393,659
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (2,782,480)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1,783,657)
<NET-ASSETS> 34,109,646
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,679,628
<OTHER-INCOME> 0
<EXPENSES-NET> (285,108)
<NET-INVESTMENT-INCOME> 1,394,520
<REALIZED-GAINS-CURRENT> (1,570,971)
<APPREC-INCREASE-CURRENT> (700,291)
<NET-CHANGE-FROM-OPS> (876,742)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (751,927)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 454,733
<NUMBER-OF-SHARES-REDEEMED> (513,303)
<SHARES-REINVESTED> 36,124
<NET-CHANGE-IN-ASSETS> (4,573,521)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1,211,509)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 121,587
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 546,011
<AVERAGE-NET-ASSETS> 35,336,321
<PER-SHARE-NAV-BEGIN> 10.490
<PER-SHARE-NII> 0.220
<PER-SHARE-GAIN-APPREC> (0.370)
<PER-SHARE-DIVIDEND> (0.220)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.120
<EXPENSE-RATIO> 1.25
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 06
<NAME> Federated North Carolina Municipal Income Fund
<S> <C>
<PERIOD-TYPE> 6-Mos
<FISCAL-YEAR-END> Aug-31-1999
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 42,137,359
<INVESTMENTS-AT-VALUE> 41,743,467
<RECEIVABLES> 668,133
<ASSETS-OTHER> 23,710
<OTHER-ITEMS-ASSETS> 74,101
<TOTAL-ASSETS> 42,509,411
<PAYABLE-FOR-SECURITIES> 988,600
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 168,732
<TOTAL-LIABILITIES> 1,157,332
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 42,542,985
<SHARES-COMMON-STOCK> 4,075,644
<SHARES-COMMON-PRIOR> 3,943,813
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (796,626)
<ACCUM-APPREC-OR-DEPREC> (394,280)
<NET-ASSETS> 41,352,079
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,115,398
<OTHER-INCOME> 0
<EXPENSES-NET> (160,971)
<NET-INVESTMENT-INCOME> 954,427
<REALIZED-GAINS-CURRENT> (635,850)
<APPREC-INCREASE-CURRENT> (470,151)
<NET-CHANGE-FROM-OPS> (151,574)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (955,347)
<DISTRIBUTIONS-OF-GAINS> (57,169)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 451,443
<NUMBER-OF-SHARES-REDEEMED> (327,930)
<SHARES-REINVESTED> 8,318
<NET-CHANGE-IN-ASSETS> 1,334,294
<ACCUMULATED-NII-PRIOR> 920
<ACCUMULATED-GAINS-PRIOR> (103,607)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 81,053
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 312,899
<AVERAGE-NET-ASSETS> 40,749,055
<PER-SHARE-NAV-BEGIN> 10.440
<PER-SHARE-NII> 0.240
<PER-SHARE-GAIN-APPREC> (0.280)
<PER-SHARE-DIVIDEND> (0.240)
<PER-SHARE-DISTRIBUTIONS> (0.010)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.150
<EXPENSE-RATIO> 0.79
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 05
<NAME> Federated New York Municipal Income Fund
<S> <C>
<PERIOD-TYPE> 6-Mos
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 22,182,363
<INVESTMENTS-AT-VALUE> 21,936,687
<RECEIVABLES> 351,595
<ASSETS-OTHER> 11,550
<OTHER-ITEMS-ASSETS> 89,269
<TOTAL-ASSETS> 22,389,101
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 96,276
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 22,292,825
<SHARES-COMMON-STOCK> 2,240,786
<SHARES-COMMON-PRIOR> 2,350,142
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1,375,835)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (245,676)
<NET-ASSETS> 22,292,825
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 696,814
<OTHER-INCOME> 0
<EXPENSES-NET> (88,955)
<NET-INVESTMENT-INCOME> 607,859
<REALIZED-GAINS-CURRENT> (344,632)
<APPREC-INCREASE-CURRENT> (606,059)
<NET-CHANGE-FROM-OPS> (342,832)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (607,859)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 164,903
<NUMBER-OF-SHARES-REDEEMED> (290,272)
<SHARES-REINVESTED> 16,013
<NET-CHANGE-IN-ASSETS> (1,103,344)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1,031,203)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 46,148
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 253,401
<AVERAGE-NET-ASSETS> 23,200,910
<PER-SHARE-NAV-BEGIN> 10.360
<PER-SHARE-NII> 0.260
<PER-SHARE-GAIN-APPREC> (0.410)
<PER-SHARE-DIVIDEND> (0.260)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 9.950
<EXPENSE-RATIO> 0.77
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 03
<NAME> Federated Michigan Intermediate Municipal Trust
<S> <C>
<PERIOD-TYPE> 6-Mos
<FISCAL-YEAR-END> Aug-31-1999
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 70,744,223
<INVESTMENTS-AT-VALUE> 71,045,775
<RECEIVABLES> 2,327,504
<ASSETS-OTHER> 24,749
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 73,398,028
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 308,288
<TOTAL-LIABILITIES> 308,288
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 74,465,102
<SHARES-COMMON-STOCK> 7,029,715
<SHARES-COMMON-PRIOR> 7,013,942
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1,676,914)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 301,552
<NET-ASSETS> 73,089,740
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,029,356
<OTHER-INCOME> 0
<EXPENSES-NET> (183,353)
<NET-INVESTMENT-INCOME> 1,846,003
<REALIZED-GAINS-CURRENT> (655,729)
<APPREC-INCREASE-CURRENT> (921,057)
<NET-CHANGE-FROM-OPS> 269,217
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,846,003)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 832,195
<NUMBER-OF-SHARES-REDEEMED> (849,710)
<SHARES-REINVESTED> 33,288
<NET-CHANGE-IN-ASSETS> 156,643
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1,021,185)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 145,403
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 370,141
<AVERAGE-NET-ASSETS> 73,103,046
<PER-SHARE-NAV-BEGIN> 10.620
<PER-SHARE-NII> 0.260
<PER-SHARE-GAIN-APPREC> (0.220)
<PER-SHARE-DIVIDEND> (0.260)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.400
<EXPENSE-RATIO> 0.50
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 02
<NAME> Ohio Municipal Income Fund-F Shares
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 73,563,161
<INVESTMENTS-AT-VALUE> 72,850,032
<RECEIVABLES> 2,162,721
<ASSETS-OTHER>
<OTHER-ITEMS-ASSETS> 35,783
<TOTAL-ASSETS> 75,048,536
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 367,512
<TOTAL-LIABILITIES> 367,512
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76,654,269
<SHARES-COMMON-STOCK> 6,967,676
<SHARES-COMMON-PRIOR> 7,397,723
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (91,140)
<ACCUMULATED-NET-GAINS> (1,168,395)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (713,710)
<NET-ASSETS> 74,681,024
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,298,484
<OTHER-INCOME> 0
<EXPENSES-NET> (349,718)
<NET-INVESTMENT-INCOME> 1,948,766
<REALIZED-GAINS-CURRENT> (751,266)
<APPREC-INCREASE-CURRENT> (2,132,475)
<NET-CHANGE-FROM-OPS> (934,975)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,929,984)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 435,759
<NUMBER-OF-SHARES-REDEEMED> (957,960)
<SHARES-REINVESTED> 92,154
<NET-CHANGE-IN-ASSETS> (4,656,260)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (109,922)
<OVERDIST-NET-GAINS-PRIOR> (417,129)
<GROSS-ADVISORY-FEES> 154,674
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 553,257
<AVERAGE-NET-ASSETS> 77,761,761
<PER-SHARE-NAV-BEGIN> 11.110
<PER-SHARE-NII> 0.270
<PER-SHARE-GAIN-APPREC> (0.390)
<PER-SHARE-DIVIDEND> (0.270)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.720
<EXPENSE-RATIO> 0.90
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 011
<NAME> Federated Pennsylvania Municipal Income Trust-A Shares
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 245,881,955
<INVESTMENTS-AT-VALUE> 236,153,963
<RECEIVABLES> 4,621,937
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 46,901
<TOTAL-ASSETS> 240,822,801
<PAYABLE-FOR-SECURITIES> 2,652,533
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 659,984
<TOTAL-LIABILITIES> 3,312,517
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 250,842,714
<SHARES-COMMON-STOCK> 18,035,812
<SHARES-COMMON-PRIOR> 19,794,704
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (584,682)
<ACCUMULATED-NET-GAINS> (3,017,043)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (9,730,705)
<NET-ASSETS> 193,703,216
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7,316,186
<OTHER-INCOME> 0
<EXPENSES-NET> (1,128,773)
<NET-INVESTMENT-INCOME> 6,187,413
<REALIZED-GAINS-CURRENT> (2,414,045)
<APPREC-INCREASE-CURRENT> (8,408,761)
<NET-CHANGE-FROM-OPS> (4,635,393)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5,170,028)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 932,680
<NUMBER-OF-SHARES-REDEEMED> (2,938,433)
<SHARES-REINVESTED> 246,861
<NET-CHANGE-IN-ASSETS> (30,916,405)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (602,998)
<OVERDISTRIB-NII-PRIOR> (636,080)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 505,378
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,261,273
<AVERAGE-NET-ASSETS> 208,208,390
<PER-SHARE-NAV-BEGIN> 11.190
<PER-SHARE-NII> 0.270
<PER-SHARE-GAIN-APPREC> (0.450)
<PER-SHARE-DIVIDEND> (0.270)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.740
<EXPENSE-RATIO> 0.75
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000866700
<NAME> Federated Municipal Securities Income Trust
<SERIES>
<NUMBER> 012
<NAME> Federated Pennsylvania Municipal Income Trust-B Shares
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Aug-31-2000
<PERIOD-END> Feb-29-2000
<INVESTMENTS-AT-COST> 245,881,955
<INVESTMENTS-AT-VALUE> 236,153,963
<RECEIVABLES> 4,621,937
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 46,901
<TOTAL-ASSETS> 240,822,801
<PAYABLE-FOR-SECURITIES> 2,652,533
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 659,984
<TOTAL-LIABILITIES> 3,312,517
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 250,842,714
<SHARES-COMMON-STOCK> 4,078,625
<SHARES-COMMON-PRIOR> 4,182,883
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (584,682)
<ACCUMULATED-NET-GAINS> (3,017,043)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (9,730,705)
<NET-ASSETS> 43,807,068
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7,316,186
<OTHER-INCOME> 0
<EXPENSES-NET> (1,128,773)
<NET-INVESTMENT-INCOME> 6,187,413
<REALIZED-GAINS-CURRENT> (2,414,045)
<APPREC-INCREASE-CURRENT> (8,408,761)
<NET-CHANGE-FROM-OPS> (4,635,393)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (965,987)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 414,766
<NUMBER-OF-SHARES-REDEEMED> (574,304)
<SHARES-REINVESTED> 55,280
<NET-CHANGE-IN-ASSETS> (30,916,405)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (602,998)
<OVERDISTRIB-NII-PRIOR> (636,080)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 505,378
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,261,273
<AVERAGE-NET-ASSETS> 45,869,136
<PER-SHARE-NAV-BEGIN> 11.200
<PER-SHARE-NII> 0.230
<PER-SHARE-GAIN-APPREC> (0.460)
<PER-SHARE-DIVIDEND> (0.230)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.740
<EXPENSE-RATIO> 1.52
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
