<PAGE> PAGE 1
000 A000000 07/31/1999
000 C000000 0000701939
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 U
001 A000000 SEI DAILY INCOME TRUST
001 B000000 811-3451
001 C000000 8003425734
002 A000000 2 OLIVER STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02109
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 10
007 C010100 1
007 C010200 2
007 C010300 3
007 C020300 GOVERNMENT II FUND
007 C030300 N
007 C010400 4
007 C020400 PRIME OBLIGATION FUND
007 C030400 N
007 C010500 5
007 C020500 MONEY MARKET FUND
007 C030500 N
007 C010600 6
007 C020600 SHORT DURATION GOVERNMENT FUND
007 C030600 N
007 C010700 7
007 C020700 INTERMEDIATE DURATION GOVERNMENT FUND
007 C030700 N
007 C010800 8
007 C020800 GNMA FUND
007 C030800 N
007 C010900 9
007 C011000 10
008 A00AA01 WELLINGTON MANAGEMENT COMPANY
008 B00AA01 A
008 C00AA01 801-15908
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02109
022 A000001 LEHMAN BROTHERS
<PAGE> PAGE 2
022 B000001 13-2927667
022 C000001 15014794
022 D000001 6697641
022 A000002 JP MORGAN
022 B000002 13-3224016
022 C000002 9578722
022 D000002 4206857
022 A000003 GOLDMAN SACHS
022 B000003 13-5108880
022 C000003 9366800
022 D000003 3754817
022 A000004 LUMMI AND COMPANY
022 B000004 04-3200030
022 C000004 12192570
022 D000004 0
022 A000005 MORGAN STANLEY
022 B000005 13-2655998
022 C000005 6346915
022 D000005 3953723
022 A000006 CS FIRST BOSTON
022 B000006 13-5659485
022 C000006 4187348
022 D000006 2009577
022 A000007 EURO BROKERS
022 B000007 12-3410896
022 C000007 6036140
022 D000007 0
022 A000008 MERRILL LYNCH
022 B000008 13-5674085
022 C000008 4609525
022 D000008 808804
022 A000009 PAINE WEBBER
022 B000009 13-2760086
022 C000009 4092697
022 D000009 0
022 A000010 HSBC SECURITIES
022 B000010 13-2650272
022 C000010 2556367
022 D000010 1270632
023 C000000 174345702
023 D000000 138052836
077 A000000 N
028 A010300 344630
028 A020300 0
028 A030300 0
028 A040300 366506
028 B010300 639154
028 B020300 802
028 B030300 0
028 B040300 602273
028 C010300 531036
<PAGE> PAGE 3
028 C020300 870
028 C030300 0
028 C040300 656404
028 D010300 369610
028 D020300 1016
028 D030300 0
028 D040300 373106
028 E010300 518403
028 E020300 806
028 E030300 0
028 E040300 550002
028 F010300 290870
028 F020300 724
028 F030300 0
028 F040300 251022
028 G010300 2693702
028 G020300 4218
028 G030300 0
028 G040300 2799312
028 H000300 0
042 A000300 0
042 B000300 0
042 C000300 0
042 D000300 100
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 0
044 000300 0
062 A000300 Y
062 B000300 0.0
062 C000300 99.8
062 D000300 0.0
062 E000300 0.0
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 0.0
062 J000300 0.0
062 K000300 0.0
062 L000300 0.2
062 M000300 0.0
062 N000300 0.0
062 O000300 0.0
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 49
063 B000300 0.0
064 A000300 N
<PAGE> PAGE 4
064 B000300 N
071 A000300 0
071 B000300 0
071 C000300 0
071 D000300 0
072 A000300 6
072 B000300 24533
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 114
072 G000300 951
072 H000300 0
072 I000300 1339
072 J000300 67
072 K000300 0
072 L000300 15
072 M000300 4
072 N000300 50
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 5
072 S000300 9
072 T000300 0
072 U000300 0
072 V000300 0
072 W000300 13
072 X000300 2567
072 Y000300 1308
072 Z000300 23274
072AA000300 33
072BB000300 0
072CC010300 0
072CC020300 0
072DD010300 23288
072DD020300 0
072EE000300 0
073 A010300 0.0200
073 A020300 0.0000
073 B000300 0.0000
073 C000300 0.0000
074 A000300 5
074 B000300 0
074 C000300 955893
074 D000300 0
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
<PAGE> PAGE 5
074 J000300 0
074 K000300 0
074 L000300 5805
074 M000300 35
074 N000300 961738
074 O000300 0
074 P000300 0
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 4165
074 S000300 0
074 T000300 957573
074 U010300 957573
074 U020300 0
074 V010300 1.00
074 V020300 1.00
074 W000300 0.9992
074 X000300 75
074 Y000300 0
075 A000300 1008862
075 B000300 0
076 000300 0.00
028 A010400 4328855
028 A020400 -35
028 A030400 0
028 A040400 4310897
028 B010400 3762412
028 B020400 4250
028 B030400 0
028 B040400 4369178
028 C010400 4645931
028 C020400 4442
028 C030400 0
028 C040400 4750163
028 D010400 3039371
028 D020400 4272
028 D030400 0
028 D040400 3188070
028 E010400 3993330
028 E020400 4333
028 E030400 0
028 E040400 3658328
028 F010400 4233025
028 F020400 4563
028 F030400 0
028 F040400 3736537
028 G010400 24002923
028 G020400 21824
028 G030400 0
<PAGE> PAGE 6
028 G040400 24013172
028 H000400 0
042 A000400 0
042 B000400 0
042 C000400 0
042 D000400 100
042 E000400 0
042 F000400 0
042 G000400 0
042 H000400 0
043 000400 0
044 000400 0
062 A000400 Y
062 B000400 0.0
062 C000400 1.8
062 D000400 11.0
062 E000400 0.0
062 F000400 22.4
062 G000400 0.0
062 H000400 0.0
062 I000400 45.7
062 J000400 0.0
062 K000400 0.0
062 L000400 19.1
062 M000400 0.0
062 N000400 0.0
062 O000400 0.0
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.0
063 A000400 51
063 B000400 0.0
064 A000400 N
064 B000400 N
071 A000400 0
071 B000400 0
071 C000400 0
071 D000400 0
072 A000400 6
072 B000400 118475
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 535
072 G000400 4452
072 H000400 0
072 I000400 6370
072 J000400 251
072 K000400 0
072 L000400 70
072 M000400 17
<PAGE> PAGE 7
072 N000400 190
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 25
072 S000400 44
072 T000400 0
072 U000400 0
072 V000400 0
072 W000400 62
072 X000400 12016
072 Y000400 6045
072 Z000400 112504
072AA000400 123
072BB000400 0
072CC010400 0
072CC020400 0
072DD010400 112358
072DD020400 0
072EE000400 0
073 A010400 0.0200
073 A020400 0.0000
073 B000400 0.0000
073 C000400 0.0000
074 A000400 0
074 B000400 559000
074 C000400 4521433
074 D000400 0
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 0
074 K000400 0
074 L000400 21931
074 M000400 268
074 N000400 5102632
074 O000400 0
074 P000400 0
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 21225
074 S000400 0
074 T000400 5081407
074 U010400 5081344
074 U020400 0
074 V010400 1.00
074 V020400 1.00
<PAGE> PAGE 8
074 W000400 0.9998
074 X000400 205
074 Y000400 0
075 A000400 4724913
075 B000400 0
076 000400 0.00
028 A010500 1303266
028 A020500 0
028 A030500 0
028 A040500 1409633
028 B010500 1344812
028 B020500 3456
028 B030500 0
028 B040500 1342727
028 C010500 1809048
028 C020500 3771
028 C030500 0
028 C040500 1856109
028 D010500 1746460
028 D020500 3778
028 D030500 0
028 D040500 1806938
028 E010500 1018839
028 E020500 2993
028 E030500 0
028 E040500 1391105
028 F010500 646692
028 F020500 2150
028 F030500 0
028 F040500 728464
028 G010500 7869117
028 G020500 16148
028 G030500 0
028 G040500 8534975
028 H000500 0
042 A000500 0
042 B000500 0
042 C000500 0
042 D000500 100
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 0
044 000500 0
062 A000500 Y
062 B000500 0.0
062 C000500 0.0
062 D000500 0.0
062 E000500 0.0
062 F000500 23.9
<PAGE> PAGE 9
062 G000500 0.0
062 H000500 0.0
062 I000500 27.3
062 J000500 11.4
062 K000500 0.0
062 L000500 37.4
062 M000500 0.0
062 N000500 0.0
062 O000500 0.0
062 P000500 0.0
062 Q000500 0.0
062 R000500 0.0
063 A000500 73
063 B000500 0.0
064 A000500 N
064 B000500 N
071 A000500 0
071 B000500 0
071 C000500 0
071 D000500 0
072 A000500 6
072 B000500 30294
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 137
072 G000500 1983
072 H000500 0
072 I000500 1709
072 J000500 84
072 K000500 0
072 L000500 18
072 M000500 4
072 N000500 69
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 7
072 S000500 11
072 T000500 0
072 U000500 0
072 V000500 0
072 W000500 16
072 X000500 4038
072 Y000500 2547
072 Z000500 28803
072AA000500 0
072BB000500 6
072CC010500 0
072CC020500 0
072DD010500 28679
<PAGE> PAGE 10
072DD020500 0
072EE000500 0
073 A010500 0.0200
073 A020500 0.0000
073 B000500 0.0000
073 C000500 0.0000
074 A000500 17052
074 B000500 0
074 C000500 691268
074 D000500 0
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 0
074 J000500 0
074 K000500 0
074 L000500 5225
074 M000500 260
074 N000500 713805
074 O000500 0
074 P000500 0
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 3772
074 S000500 0
074 T000500 710033
074 U010500 710072
074 U020500 0
074 V010500 1.00
074 V020500 1.00
074 W000500 0.9994
074 X000500 178
074 Y000500 0
075 A000500 1212033
075 B000500 0
076 000500 0.00
015 A000601 FIRST UNION
015 B000601 C
015 C010601 PHILADELPHIA
015 C020601 PA
015 C030601 19101
015 E010601 X
028 A010600 8103
028 A020600 0
028 A030600 0
028 A040600 7545
028 B010600 11499
028 B020600 199
<PAGE> PAGE 11
028 B030600 0
028 B040600 10362
028 C010600 17574
028 C020600 222
028 C030600 0
028 C040600 7971
028 D010600 14246
028 D020600 219
028 D030600 0
028 D040600 11325
028 E010600 13135
028 E020600 243
028 E030600 0
028 E040600 10641
028 F010600 9062
028 F020600 242
028 F030600 0
028 F040600 7223
028 G010600 73619
028 G020600 1125
028 G030600 0
028 G040600 55067
028 H000600 0
062 A000600 Y
062 B000600 42.3
062 C000600 0.0
062 D000600 10.9
062 E000600 0.0
062 F000600 0.0
062 G000600 0.0
062 H000600 0.0
062 I000600 0.0
062 J000600 0.0
062 K000600 0.0
062 L000600 0.6
062 M000600 0.0
062 N000600 46.7
062 O000600 0.0
062 P000600 0.0
062 Q000600 0.1
062 R000600 0.0
063 A000600 0
063 B000600 1.5
064 A000600 N
064 B000600 N
071 A000600 74835
071 B000600 53846
071 C000600 96240
071 D000600 56
072 A000600 6
072 B000600 2924
<PAGE> PAGE 12
072 C000600 0
072 D000600 0
072 E000600 0
072 F000600 53
072 G000600 186
072 H000600 0
072 I000600 133
072 J000600 9
072 K000600 0
072 L000600 2
072 M000600 2
072 N000600 2
072 O000600 0
072 P000600 0
072 Q000600 0
072 R000600 1
072 S000600 1
072 T000600 0
072 U000600 0
072 V000600 0
072 W000600 8
072 X000600 397
072 Y000600 157
072 Z000600 2684
072AA000600 153
072BB000600 0
072CC010600 0
072CC020600 2108
072DD010600 2684
072DD020600 0
072EE000600 0
073 A010600 0.2500
073 A020600 0.2400
073 B000600 0.0000
073 C000600 0.0000
074 A000600 1
074 B000600 12712
074 C000600 49385
074 D000600 54509
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 0
074 J000600 52
074 K000600 0
074 L000600 678
074 M000600 7
074 N000600 117344
074 O000600 0
074 P000600 0
<PAGE> PAGE 13
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 561
074 S000600 0
074 T000600 116783
074 U010600 11703
074 U020600 1
074 V010600 9.98
074 V020600 9.97
074 W000600 0.0000
074 X000600 186
074 Y000600 0
075 A000600 0
075 B000600 107350
076 000600 0.00
015 A000701 FIRST UNION
015 B000701 C
015 C010701 PHILADELPHIA
015 C020701 PA
015 C030701 19101
015 E010701 X
028 A010700 4671
028 A020700 0
028 A030700 0
028 A040700 3814
028 B010700 7715
028 B020700 218
028 B030700 0
028 B040700 6648
028 C010700 12970
028 C020700 242
028 C030700 0
028 C040700 4912
028 D010700 4240
028 D020700 238
028 D030700 0
028 D040700 6045
028 E010700 5068
028 E020700 264
028 E030700 0
028 E040700 3518
028 F010700 4889
028 F020700 261
028 F030700 0
028 F040700 7356
028 G010700 39553
028 G020700 1223
028 G030700 0
028 G040700 32293
<PAGE> PAGE 14
028 H000700 0
062 A000700 Y
062 B000700 0.0
062 C000700 0.0
062 D000700 4.5
062 E000700 0.0
062 F000700 0.0
062 G000700 0.0
062 H000700 0.0
062 I000700 0.0
062 J000700 0.0
062 K000700 0.0
062 L000700 0.0
062 M000700 49.4
062 N000700 48.4
062 O000700 0.0
062 P000700 0.0
062 Q000700 2.3
062 R000700 0.0
063 A000700 0
063 B000700 3.2
064 A000700 N
064 B000700 N
066 A000700 N
067 000700 N
068 A000700 N
068 B000700 N
069 000700 N
071 A000700 20529
071 B000700 9147
071 C000700 117450
071 D000700 8
072 A000700 6
072 B000700 3744
072 C000700 0
072 D000700 0
072 E000700 0
072 F000700 63
072 G000700 221
072 H000700 0
072 I000700 158
072 J000700 14
072 K000700 0
072 L000700 2
072 M000700 2
072 N000700 2
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 1
072 S000700 1
<PAGE> PAGE 15
072 T000700 0
072 U000700 0
072 V000700 0
072 W000700 2
072 X000700 466
072 Y000700 150
072 Z000700 3428
072AA000700 11
072BB000700 0
072CC010700 0
072CC020700 5135
072DD010700 3430
072DD020700 0
072EE000700 0
073 A010700 0.2700
073 A020700 0.0000
073 B000700 0.0000
073 C000700 0.0000
074 A000700 388
074 B000700 5771
074 C000700 0
074 D000700 125113
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 0
074 J000700 18
074 K000700 0
074 L000700 2426
074 M000700 0
074 N000700 133716
074 O000700 4996
074 P000700 0
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 706
074 S000700 0
074 T000700 128014
074 U010700 13013
074 U020700 0
074 V010700 9.84
074 V020700 0.00
074 W000700 0.0000
074 X000700 226
074 Y000700 0
075 A000700 0
075 B000700 127582
076 000700 0.00
<PAGE> PAGE 16
015 A000801 FIRST UNION
015 B000801 C
015 C010801 PHILADELPHIA
015 C020801 PA
015 C030801 19101
015 E010801 X
028 A010800 2733
028 A020800 0
028 A030800 0
028 A040800 2127
028 B010800 6284
028 B020800 189
028 B030800 0
028 B040800 5015
028 C010800 9336
028 C020800 221
028 C030800 0
028 C040800 3088
028 D010800 4413
028 D020800 224
028 D030800 0
028 D040800 3451
028 E010800 5517
028 E020800 240
028 E030800 0
028 E040800 3816
028 F010800 2612
028 F020800 230
028 F030800 0
028 F040800 4216
028 G010800 30895
028 G020800 1104
028 G030800 0
028 G040800 21713
028 H000800 0
062 A000800 Y
062 B000800 0.0
062 C000800 0.0
062 D000800 2.6
062 E000800 0.0
062 F000800 0.0
062 G000800 0.0
062 H000800 0.0
062 I000800 0.0
062 J000800 0.0
062 K000800 0.0
062 L000800 0.2
062 M000800 0.0
062 N000800 97.4
062 O000800 0.0
062 P000800 0.0
<PAGE> PAGE 17
062 Q000800 0.0
062 R000800 0.0
063 A000800 0
063 B000800 4.4
064 A000800 N
064 B000800 N
071 A000800 24309
071 B000800 13768
071 C000800 101533
071 D000800 14
072 A000800 6
072 B000800 3474
072 C000800 0
072 D000800 0
072 E000800 0
072 F000800 52
072 G000800 167
072 H000800 0
072 I000800 130
072 J000800 13
072 K000800 0
072 L000800 0
072 M000800 1
072 N000800 7
072 O000800 0
072 P000800 0
072 Q000800 0
072 R000800 1
072 S000800 1
072 T000800 0
072 U000800 0
072 V000800 0
072 W000800 0
072 X000800 372
072 Y000800 60
072 Z000800 3162
072AA000800 0
072BB000800 5
072CC010800 0
072CC020800 5326
072DD010800 3183
072DD020800 0
072EE000800 0
073 A010800 0.2900
073 A020800 0.0000
073 B000800 0.0000
073 C000800 0.0000
074 A000800 0
074 B000800 2792
074 C000800 0
074 D000800 102972
<PAGE> PAGE 18
074 E000800 0
074 F000800 0
074 G000800 0
074 H000800 0
074 I000800 0
074 J000800 0
074 K000800 0
074 L000800 619
074 M000800 2
074 N000800 106385
074 O000800 0
074 P000800 0
074 Q000800 0
074 R010800 0
074 R020800 0
074 R030800 0
074 R040800 652
074 S000800 0
074 T000800 105733
074 U010800 11224
074 U020800 0
074 V010800 9.42
074 V020800 0.00
074 W000800 0.0000
074 X000800 196
074 Y000800 0
075 A000800 0
075 B000800 104967
076 000800 0.00
028 A011200 270483
028 A021200 0
028 A031200 0
028 A041200 253336
028 B011200 227426
028 B021200 610
028 B031200 0
028 B041200 259479
028 C011200 304090
028 C021200 769
028 C031200 0
028 C041200 312023
028 D011200 251943
028 D021200 682
028 D031200 0
028 D041200 238623
028 E011200 222517
028 E021200 699
028 E031200 0
028 E041200 243331
028 F011200 292635
028 F021200 787
<PAGE> PAGE 19
028 F031200 0
028 F041200 244537
028 G011200 1569094
028 G021200 3547
028 G031200 0
028 G041200 1551330
028 H001200 0
042 A001200 0
042 B001200 0
042 C001200 0
042 D001200 100
042 E001200 0
042 F001200 0
042 G001200 0
042 H001200 0
043 001200 0
044 001200 0
062 A001200 Y
062 B001200 98.0
062 C001200 0.0
062 D001200 0.0
062 E001200 0.0
062 F001200 0.0
062 G001200 0.0
062 H001200 0.0
062 I001200 0.0
062 J001200 0.0
062 K001200 0.0
062 L001200 2.0
062 M001200 0.0
062 N001200 0.0
062 O001200 0.0
062 P001200 0.0
062 Q001200 0.0
062 R001200 0.0
063 A001200 30
063 B001200 0.0
064 A001200 N
064 B001200 N
071 A001200 0
071 B001200 0
071 C001200 0
071 D001200 0
072 A001200 6
072 B001200 13595
072 C001200 0
072 D001200 0
072 E001200 0
072 F001200 68
072 G001200 717
072 H001200 0
<PAGE> PAGE 20
072 I001200 798
072 J001200 29
072 K001200 0
072 L001200 9
072 M001200 2
072 N001200 6
072 O001200 0
072 P001200 0
072 Q001200 0
072 R001200 3
072 S001200 6
072 T001200 0
072 U001200 0
072 V001200 0
072 W001200 9
072 X001200 1647
072 Y001200 697
072 Z001200 12645
072AA001200 4
072BB001200 0
072CC011200 0
072CC021200 0
072DD011200 12642
072DD021200 0
072EE001200 0
073 A011200 0.0200
073 A021200 0.0000
073 B001200 0.0000
073 C001200 0.0000
074 A001200 0
074 B001200 0
074 C001200 617564
074 D001200 0
074 E001200 0
074 F001200 0
074 G001200 0
074 H001200 0
074 I001200 0
074 J001200 0
074 K001200 0
074 L001200 14713
074 M001200 9
074 N001200 632286
074 O001200 0
074 P001200 0
074 Q001200 0
074 R011200 0
074 R021200 0
074 R031200 0
074 R041200 2292
074 S001200 0
<PAGE> PAGE 21
074 T001200 629994
074 U011200 629994
074 U021200 0
074 V011200 1.00
074 V021200 1.00
074 W001200 0.9997
074 X001200 138
074 Y001200 0
075 A001200 602233
075 B001200 0
076 001200 0.00
028 A011300 440283
028 A021300 0
028 A031300 0
028 A041300 292942
028 B011300 470377
028 B021300 3208
028 B031300 0
028 B041300 441429
028 C011300 377388
028 C021300 3765
028 C031300 0
028 C041300 435130
028 D011300 381967
028 D021300 3569
028 D031300 0
028 D041300 316533
028 E011300 397678
028 E021300 3513
028 E031300 0
028 E041300 1619607
028 F011300 201917
028 F021300 413
028 F031300 0
028 F041300 185665
028 G011300 2269610
028 G021300 14469
028 G031300 0
028 G041300 3291307
028 H001300 0
042 A001300 0
042 B001300 0
042 C001300 0
042 D001300 100
042 E001300 0
042 F001300 0
042 G001300 0
042 H001300 0
043 001300 3027
044 001300 0
062 A001300 Y
<PAGE> PAGE 22
062 B001300 0.0
062 C001300 46.9
062 D001300 57.3
062 E001300 0.0
062 F001300 0.0
062 G001300 0.0
062 H001300 0.0
062 I001300 0.0
062 J001300 0.0
062 K001300 0.0
062 L001300 -4.2
062 M001300 0.0
062 N001300 0.0
062 O001300 0.0
062 P001300 0.0
062 Q001300 0.0
062 R001300 0.0
063 A001300 49
063 B001300 0.0
064 A001300 N
064 B001300 N
071 A001300 0
071 B001300 0
071 C001300 0
071 D001300 0
072 A001300 6
072 B001300 31157
072 C001300 0
072 D001300 0
072 E001300 0
072 F001300 175
072 G001300 1522
072 H001300 0
072 I001300 4001
072 J001300 85
072 K001300 0
072 L001300 21
072 M001300 5
072 N001300 33
072 O001300 0
072 P001300 0
072 Q001300 0
072 R001300 7
072 S001300 12
072 T001300 0
072 U001300 0
072 V001300 0
072 W001300 18
072 X001300 5879
072 Y001300 1365
072 Z001300 26643
<PAGE> PAGE 23
072AA001300 2
072BB001300 0
072CC011300 0
072CC021300 0
072DD011300 26657
072DD021300 0
072EE001300 0
073 A011300 0.0200
073 A021300 0.0000
073 B001300 0.0000
073 C001300 0.0000
074 A001300 63
074 B001300 204085
074 C001300 166895
074 D001300 0
074 E001300 0
074 F001300 0
074 G001300 0
074 H001300 0
074 I001300 0
074 J001300 0
074 K001300 0
074 L001300 1383
074 M001300 47
074 N001300 372473
074 O001300 14991
074 P001300 0
074 Q001300 0
074 R011300 0
074 R021300 0
074 R031300 0
074 R041300 1509
074 S001300 0
074 T001300 355973
074 U011300 355974
074 U021300 0
074 V011300 1.00
074 V021300 1.00
074 W001300 0.9997
074 X001300 93
074 Y001300 0
075 A001300 1279173
075 B001300 0
076 001300 0.00
028 A011500 303178
028 A021500 0
028 A031500 0
028 A041500 254359
028 B011500 302950
028 B021500 369
028 B031500 0
<PAGE> PAGE 24
028 B041500 314058
028 C011500 310078
028 C021500 352
028 C031500 0
028 C041500 436906
028 D011500 248607
028 D021500 312
028 D031500 0
028 D041500 193850
028 E011500 288240
028 E021500 357
028 E031500 0
028 E041500 260409
028 F011500 279406
028 F021500 361
028 F031500 0
028 F041500 299481
028 G011500 1732459
028 G021500 1751
028 G031500 0
028 G041500 1759063
028 H001500 0
042 A001500 0
042 B001500 0
042 C001500 0
042 D001500 100
042 E001500 0
042 F001500 0
042 G001500 0
042 H001500 0
043 001500 0
044 001500 0
062 A001500 Y
062 B001500 17.3
062 C001500 0.0
062 D001500 82.8
062 E001500 0.0
062 F001500 0.0
062 G001500 0.0
062 H001500 0.0
062 I001500 0.0
062 J001500 0.0
062 K001500 0.0
062 L001500 0.0
062 M001500 0.0
062 N001500 0.0
062 O001500 0.0
062 P001500 0.0
062 Q001500 0.0
062 R001500 0.0
063 A001500 32
<PAGE> PAGE 25
063 B001500 0.0
064 A001500 N
064 B001500 N
071 A001500 0
071 B001500 0
071 C001500 0
071 D001500 0
072 A001500 6
072 B001500 13153
072 C001500 0
072 D001500 0
072 E001500 0
072 F001500 62
072 G001500 652
072 H001500 0
072 I001500 1051
072 J001500 59
072 K001500 0
072 L001500 8
072 M001500 2
072 N001500 26
072 O001500 0
072 P001500 0
072 Q001500 0
072 R001500 3
072 S001500 5
072 T001500 0
072 U001500 0
072 V001500 0
072 W001500 6
072 X001500 1874
072 Y001500 602
072 Z001500 11881
072AA001500 0
072BB001500 2
072CC011500 0
072CC021500 0
072DD011500 11858
072DD021500 0
072EE001500 0
073 A011500 0.0200
073 A021500 0.0000
073 B001500 0.0000
073 C001500 0.0000
074 A001500 8
074 B001500 427980
074 C001500 89506
074 D001500 0
074 E001500 0
074 F001500 0
074 G001500 0
<PAGE> PAGE 26
074 H001500 0
074 I001500 0
074 J001500 0
074 K001500 0
074 L001500 1799
074 M001500 50
074 N001500 519343
074 O001500 0
074 P001500 0
074 Q001500 0
074 R011500 0
074 R021500 0
074 R031500 0
074 R041500 2410
074 S001500 0
074 T001500 516933
074 U011500 516917
074 U021500 0
074 V011500 1.00
074 V021500 1.00
074 W001500 0.9998
074 X001500 155
074 Y001500 0
075 A001500 547476
075 B001500 0
076 001500 0.00
015 A001701 FIRST UNION
015 B001701 C
015 C011701 PHILADELPHIA
015 C021701 PA
015 C031701 19101
015 E011701 X
028 A011700 5823
028 A021700 0
028 A031700 0
028 A041700 5044
028 B011700 6353
028 B021700 262
028 B031700 0
028 B041700 5008
028 C011700 11928
028 C021700 286
028 C031700 0
028 C041700 4819
028 D011700 6878
028 D021700 278
028 D031700 0
028 D041700 5613
028 E011700 5507
028 E021700 296
028 E031700 0
<PAGE> PAGE 27
028 E041700 3827
028 F011700 14675
028 F021700 289
028 F031700 0
028 F041700 4655
028 G011700 51164
028 G021700 1411
028 G031700 0
028 G041700 28966
028 H001700 0
062 A001700 Y
062 B001700 7.0
062 C001700 0.0
062 D001700 11.6
062 E001700 0.0
062 F001700 6.4
062 G001700 0.0
062 H001700 0.0
062 I001700 0.0
062 J001700 0.0
062 K001700 0.0
062 L001700 0.0
062 M001700 0.0
062 N001700 14.5
062 O001700 0.0
062 P001700 32.9
062 Q001700 27.6
062 R001700 0.0
063 A001700 0
063 B001700 1.2
064 A001700 N
064 B001700 N
071 A001700 25429
071 B001700 20077
071 C001700 60405
071 D001700 33
072 A001700 6
072 B001700 2663
072 C001700 0
072 D001700 0
072 E001700 0
072 F001700 49
072 G001700 170
072 H001700 0
072 I001700 122
072 J001700 6
072 K001700 0
072 L001700 2
072 M001700 1
072 N001700 6
072 O001700 0
<PAGE> PAGE 28
072 P001700 0
072 Q001700 0
072 R001700 1
072 S001700 1
072 T001700 0
072 U001700 0
072 V001700 0
072 W001700 4
072 X001700 362
072 Y001700 192
072 Z001700 2493
072AA001700 0
072BB001700 57
072CC011700 0
072CC021700 923
072DD011700 2428
072DD021700 0
072EE001700 0
073 A011700 0.0500
073 A021700 0.0000
073 B001700 0.0000
073 C001700 0.0000
074 A001700 0
074 B001700 13034
074 C001700 99459
074 D001700 0
074 E001700 0
074 F001700 0
074 G001700 0
074 H001700 0
074 I001700 0
074 J001700 0
074 K001700 0
074 L001700 767
074 M001700 0
074 N001700 113260
074 O001700 0
074 P001700 0
074 Q001700 0
074 R011700 0
074 R021700 0
074 R031700 0
074 R041700 523
074 S001700 0
074 T001700 112737
074 U011700 56854
074 U021700 0
074 V011700 1.98
074 V021700 0.00
074 W001700 0.0000
074 X001700 139
<PAGE> PAGE 29
074 Y001700 0
075 A001700 0
075 B001700 98053
076 001700 0.00
SIGNATURE MARK NAGLE
TITLE CONTROLLER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 030
<NAME> GOVERNMENT II FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 955893
<INVESTMENTS-AT-VALUE> 955893
<RECEIVABLES> 5805
<ASSETS-OTHER> 40
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 961738
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4165
<TOTAL-LIABILITIES> 4165
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 957701
<SHARES-COMMON-STOCK> 805176
<SHARES-COMMON-PRIOR> 943549
<ACCUMULATED-NII-CURRENT> 23
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (151)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 957573
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24533
<OTHER-INCOME> 0
<EXPENSES-NET> (1259)
<NET-INVESTMENT-INCOME> 23274
<REALIZED-GAINS-CURRENT> 33
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 23307
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (20355)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2369284
<NUMBER-OF-SHARES-REDEEMED> (2511575)
<SHARES-REINVESTED> 3917
<NET-CHANGE-IN-ASSETS> (138356)
<ACCUMULATED-NII-PRIOR> 37
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (184)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 114
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2567
<AVERAGE-NET-ASSETS> 1008863
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .20
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 031
<NAME> GOVERNMENT II FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 955893
<INVESTMENTS-AT-VALUE> 955893
<RECEIVABLES> 5805
<ASSETS-OTHER> 40
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 961738
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4165
<TOTAL-LIABILITIES> 4165
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 957701
<SHARES-COMMON-STOCK> 105827
<SHARES-COMMON-PRIOR> 64832
<ACCUMULATED-NII-CURRENT> 23
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (151)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 957753
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24533
<OTHER-INCOME> 0
<EXPENSES-NET> (1259)
<NET-INVESTMENT-INCOME> 23274
<REALIZED-GAINS-CURRENT> 33
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 23307
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1785)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 218788
<NUMBER-OF-SHARES-REDEEMED> (178084)
<SHARES-REINVESTED> 292
<NET-CHANGE-IN-ASSETS> 40997
<ACCUMULATED-NII-PRIOR> 37
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (184)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 114
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2567
<AVERAGE-NET-ASSETS> 1008863
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .50
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 032
<NAME> GOVERNMENT II FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 955893
<INVESTMENTS-AT-VALUE> 955893
<RECEIVABLES> 5805
<ASSETS-OTHER> 40
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 961738
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4165
<TOTAL-LIABILITIES> 4165
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 957701
<SHARES-COMMON-STOCK> 50706
<SHARES-COMMON-PRIOR> 46691
<ACCUMULATED-NII-CURRENT> 23
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (151)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 957573
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 24533
<OTHER-INCOME> 0
<EXPENSES-NET> (1259)
<NET-INVESTMENT-INCOME> 23274
<REALIZED-GAINS-CURRENT> 33
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 23307
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1148)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 105630
<NUMBER-OF-SHARES-REDEEMED> (109653)
<SHARES-REINVESTED> 9
<NET-CHANGE-IN-ASSETS> (4014)
<ACCUMULATED-NII-PRIOR> 37
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (184)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 114
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2567
<AVERAGE-NET-ASSETS> 1008863
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .70
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 040
<NAME> PRIME OBLIGATION FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 5080433
<INVESTMENTS-AT-VALUE> 5080433
<RECEIVABLES> 21931
<ASSETS-OTHER> 268
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5102632
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21225
<TOTAL-LIABILITIES> 21225
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5081345
<SHARES-COMMON-STOCK> 4448127
<SHARES-COMMON-PRIOR> 4482863
<ACCUMULATED-NII-CURRENT> 92
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (30)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5081407
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 118475
<OTHER-INCOME> 0
<EXPENSES-NET> (5971)
<NET-INVESTMENT-INCOME> 112504
<REALIZED-GAINS-CURRENT> 123
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 112627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (98674)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 21827006
<NUMBER-OF-SHARES-REDEEMED> (21882951)
<SHARES-REINVESTED> 21211
<NET-CHANGE-IN-ASSETS> (34499)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (54)
<OVERDIST-NET-GAINS-PRIOR> (153)
<GROSS-ADVISORY-FEES> 535
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12016
<AVERAGE-NET-ASSETS> 4724913
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .20
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 041
<NAME> PRIME OBLIGATION FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 5080433
<INVESTMENTS-AT-VALUE> 5080433
<RECEIVABLES> 21931
<ASSETS-OTHER> 268
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5102632
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21225
<TOTAL-LIABILITIES> 21225
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5081345
<SHARES-COMMON-STOCK> 246103
<SHARES-COMMON-PRIOR> 229379
<ACCUMULATED-NII-CURRENT> 92
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (30)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5081407
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 118475
<OTHER-INCOME> 0
<EXPENSES-NET> (5971)
<NET-INVESTMENT-INCOME> 112504
<REALIZED-GAINS-CURRENT> 123
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 112627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6109)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1475370
<NUMBER-OF-SHARES-REDEEMED> (1459161)
<SHARES-REINVESTED> 516
<NET-CHANGE-IN-ASSETS> 16740
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (54)
<OVERDIST-NET-GAINS-PRIOR> (153)
<GROSS-ADVISORY-FEES> 535
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12016
<AVERAGE-NET-ASSETS> 4724913
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .50
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 042
<NAME> PRIME OBLIGATION FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 5080433
<INVESTMENTS-AT-VALUE> 5080433
<RECEIVABLES> 21931
<ASSETS-OTHER> 268
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5102632
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21225
<TOTAL-LIABILITIES> 21225
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5081345
<SHARES-COMMON-STOCK> 379246
<SHARES-COMMON-PRIOR> 351883
<ACCUMULATED-NII-CURRENT> 92
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (30)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5081407
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 118475
<OTHER-INCOME> 0
<EXPENSES-NET> (5971)
<NET-INVESTMENT-INCOME> 112504
<REALIZED-GAINS-CURRENT> 123
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 112627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (7424)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 662497
<NUMBER-OF-SHARES-REDEEMED> (635185)
<SHARES-REINVESTED> 52
<NET-CHANGE-IN-ASSETS> 27380
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (54)
<OVERDIST-NET-GAINS-PRIOR> (153)
<GROSS-ADVISORY-FEES> 535
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12016
<AVERAGE-NET-ASSETS> 4724913
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .70
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 043
<NAME> PRIME OBLIGATION FUND SWEEP CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 5080433
<INVESTMENTS-AT-VALUE> 5080433
<RECEIVABLES> 21931
<ASSETS-OTHER> 268
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5102632
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21225
<TOTAL-LIABILITIES> 21225
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5081345
<SHARES-COMMON-STOCK> 7865
<SHARES-COMMON-PRIOR> 5645
<ACCUMULATED-NII-CURRENT> 92
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (30)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5081407
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 118475
<OTHER-INCOME> 0
<EXPENSES-NET> (5971)
<NET-INVESTMENT-INCOME> 112504
<REALIZED-GAINS-CURRENT> 123
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 112627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (151)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 38050
<NUMBER-OF-SHARES-REDEEMED> (35875)
<SHARES-REINVESTED> 45
<NET-CHANGE-IN-ASSETS> 2221
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (54)
<OVERDIST-NET-GAINS-PRIOR> (153)
<GROSS-ADVISORY-FEES> 535
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12016
<AVERAGE-NET-ASSETS> 4724913
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .95
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 050
<NAME> MONEY MARKET FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 691268
<INVESTMENTS-AT-VALUE> 691268
<RECEIVABLES> 5225
<ASSETS-OTHER> 17312
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 713805
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3772
<TOTAL-LIABILITIES> 3772
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 710065
<SHARES-COMMON-STOCK> 523564
<SHARES-COMMON-PRIOR> 1212388
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (32)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 710033
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 30294
<OTHER-INCOME> 0
<EXPENSES-NET> (1491)
<NET-INVESTMENT-INCOME> 28803
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 28803
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (25100)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7414597
<NUMBER-OF-SHARES-REDEEMED> (8119517)
<SHARES-REINVESTED> 16096
<NET-CHANGE-IN-ASSETS> (688702)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (124)
<OVERDIST-NET-GAINS-PRIOR> (32)
<GROSS-ADVISORY-FEES> 137
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4038
<AVERAGE-NET-ASSETS> 1212033
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.18
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 051
<NAME> MONEY MARKET FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 691268
<INVESTMENTS-AT-VALUE> 691268
<RECEIVABLES> 5225
<ASSETS-OTHER> 17312
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 713805
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3772
<TOTAL-LIABILITIES> 3772
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 710065
<SHARES-COMMON-STOCK> 18312
<SHARES-COMMON-PRIOR> 7876
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (32)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 710033
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 30294
<OTHER-INCOME> 0
<EXPENSES-NET> (1491)
<NET-INVESTMENT-INCOME> 28803
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 28803
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (210)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 52705
<NUMBER-OF-SHARES-REDEEMED> (42297)
<SHARES-REINVESTED> 28
<NET-CHANGE-IN-ASSETS> 10437
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (124)
<OVERDIST-NET-GAINS-PRIOR> (32)
<GROSS-ADVISORY-FEES> 137
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4038
<AVERAGE-NET-ASSETS> 1212033
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .48
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 052
<NAME> MONEY MARKET FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 691268
<INVESTMENTS-AT-VALUE> 691268
<RECEIVABLES> 5225
<ASSETS-OTHER> 17312
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 713805
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3772
<TOTAL-LIABILITIES> 3772
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 710065
<SHARES-COMMON-STOCK> 154850
<SHARES-COMMON-PRIOR> 132849
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (32)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 710033
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 30294
<OTHER-INCOME> 0
<EXPENSES-NET> (1491)
<NET-INVESTMENT-INCOME> 28803
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 28803
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3191)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 362861
<NUMBER-OF-SHARES-REDEEMED> (340884)
<SHARES-REINVESTED> 24
<NET-CHANGE-IN-ASSETS> 23002
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (124)
<OVERDIST-NET-GAINS-PRIOR> (32)
<GROSS-ADVISORY-FEES> 137
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4038
<AVERAGE-NET-ASSETS> 1212033
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .68
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 053
<NAME> MONEY MARKET FUND SWEEP CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 691268
<INVESTMENTS-AT-VALUE> 691268
<RECEIVABLES> 5225
<ASSETS-OTHER> 17312
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 713805
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3772
<TOTAL-LIABILITIES> 3772
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 710065
<SHARES-COMMON-STOCK> 13346
<SHARES-COMMON-PRIOR> 6669
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (32)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 710033
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 30294
<OTHER-INCOME> 0
<EXPENSES-NET> (1491)
<NET-INVESTMENT-INCOME> 28803
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 28803
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (178)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 38954
<NUMBER-OF-SHARES-REDEEMED> (32277)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 6677
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (124)
<OVERDIST-NET-GAINS-PRIOR> (32)
<GROSS-ADVISORY-FEES> 137
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4038
<AVERAGE-NET-ASSETS> 1212033
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .93
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 060
<NAME> SHORT DURATION GOVERNMENT FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 117781
<INVESTMENTS-AT-VALUE> 116606
<RECEIVABLES> 731
<ASSETS-OTHER> 7
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 117344
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 561
<TOTAL-LIABILITIES> 561
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 118394
<SHARES-COMMON-STOCK> 11703
<SHARES-COMMON-PRIOR> 9748
<ACCUMULATED-NII-CURRENT> 21
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (457)
<ACCUM-APPREC-OR-DEPREC> (1175)
<NET-ASSETS> 116783
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2924
<OTHER-INCOME> 0
<EXPENSES-NET> (240)
<NET-INVESTMENT-INCOME> 2684
<REALIZED-GAINS-CURRENT> 153
<APPREC-INCREASE-CURRENT> (2108)
<NET-CHANGE-FROM-OPS> 729
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2684)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 73619
<NUMBER-OF-SHARES-REDEEMED> (55067)
<SHARES-REINVESTED> 1125
<NET-CHANGE-IN-ASSETS> 17722
<ACCUMULATED-NII-PRIOR> 21
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (610)
<GROSS-ADVISORY-FEES> 53
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 397
<AVERAGE-NET-ASSETS> 107350
<PER-SHARE-NAV-BEGIN> 10.16
<PER-SHARE-NII> .25
<PER-SHARE-GAIN-APPREC> (.18)
<PER-SHARE-DIVIDEND> (.25)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.98
<EXPENSE-RATIO> .45
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 061
<NAME> SHORT DURATION GOVERNMENT FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 117781
<INVESTMENTS-AT-VALUE> 116606
<RECEIVABLES> 731
<ASSETS-OTHER> 7
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 117344
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 561
<TOTAL-LIABILITIES> 561
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 118394
<SHARES-COMMON-STOCK> 1
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 21
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (457)
<ACCUM-APPREC-OR-DEPREC> (1175)
<NET-ASSETS> 116783
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2924
<OTHER-INCOME> 0
<EXPENSES-NET> (240)
<NET-INVESTMENT-INCOME> 2684
<REALIZED-GAINS-CURRENT> 153
<APPREC-INCREASE-CURRENT> (2108)
<NET-CHANGE-FROM-OPS> 729
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 0
<ACCUMULATED-NII-PRIOR> 21
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (610)
<GROSS-ADVISORY-FEES> 53
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 397
<AVERAGE-NET-ASSETS> 107350
<PER-SHARE-NAV-BEGIN> 10.15
<PER-SHARE-NII> .24
<PER-SHARE-GAIN-APPREC> (.18)
<PER-SHARE-DIVIDEND> (.24)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.97
<EXPENSE-RATIO> .75
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 070
<NAME> INTERMEDIATE DURATION GOVERNMNET FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 132248
<INVESTMENTS-AT-VALUE> 130884
<RECEIVABLES> 2444
<ASSETS-OTHER> 388
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 133716
<PAYABLE-FOR-SECURITIES> 4996
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 706
<TOTAL-LIABILITIES> 5702
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 134090
<SHARES-COMMON-STOCK> 13013
<SHARES-COMMON-PRIOR> 12172
<ACCUMULATED-NII-CURRENT> 86
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (5617)
<ACCUM-APPREC-OR-DEPREC> (1364)
<NET-ASSETS> 128014
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3744
<OTHER-INCOME> 0
<EXPENSES-NET> (316)
<NET-INVESTMENT-INCOME> 3428
<REALIZED-GAINS-CURRENT> 11
<APPREC-INCREASE-CURRENT> (5135)
<NET-CHANGE-FROM-OPS> (1696)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3430)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 39553
<NUMBER-OF-SHARES-REDEEMED> (32293)
<SHARES-REINVESTED> 1223
<NET-CHANGE-IN-ASSETS> 3357
<ACCUMULATED-NII-PRIOR> 88
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (5628)
<GROSS-ADVISORY-FEES> 63
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 466
<AVERAGE-NET-ASSETS> 127582
<PER-SHARE-NAV-BEGIN> 10.24
<PER-SHARE-NII> .27
<PER-SHARE-GAIN-APPREC> (.40)
<PER-SHARE-DIVIDEND> (.27)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.84
<EXPENSE-RATIO> .50
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 080
<NAME> GNMA FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 109106
<INVESTMENTS-AT-VALUE> 105764
<RECEIVABLES> 619
<ASSETS-OTHER> 2
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 106385
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 652
<TOTAL-LIABILITIES> 652
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 121275
<SHARES-COMMON-STOCK> 11224
<SHARES-COMMON-PRIOR> 10176
<ACCUMULATED-NII-CURRENT> 120
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (12320)
<ACCUM-APPREC-OR-DEPREC> (3342)
<NET-ASSETS> 105733
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3474
<OTHER-INCOME> 0
<EXPENSES-NET> (312)
<NET-INVESTMENT-INCOME> 3162
<REALIZED-GAINS-CURRENT> (5)
<APPREC-INCREASE-CURRENT> (5326)
<NET-CHANGE-FROM-OPS> (2169)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3183)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 30895
<NUMBER-OF-SHARES-REDEEMED> (21713)
<SHARES-REINVESTED> 1104
<NET-CHANGE-IN-ASSETS> 4934
<ACCUMULATED-NII-PRIOR> 141
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (12315)
<GROSS-ADVISORY-FEES> 52
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 372
<AVERAGE-NET-ASSETS> 104967
<PER-SHARE-NAV-BEGIN> 9.91
<PER-SHARE-NII> .29
<PER-SHARE-GAIN-APPREC> (.49)
<PER-SHARE-DIVIDEND> (.29)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.42
<EXPENSE-RATIO> .60
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 120
<NAME> TREASURY II FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 617564
<INVESTMENTS-AT-VALUE> 617564
<RECEIVABLES> 14713
<ASSETS-OTHER> 9
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 632286
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2292
<TOTAL-LIABILITIES> 2292
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 630038
<SHARES-COMMON-STOCK> 521365
<SHARES-COMMON-PRIOR> 451814
<ACCUMULATED-NII-CURRENT> 210
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (254)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 629994
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13595
<OTHER-INCOME> 0
<EXPENSES-NET> (950)
<NET-INVESTMENT-INCOME> 12645
<REALIZED-GAINS-CURRENT> 4
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 12649
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (10232)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1332280
<NUMBER-OF-SHARES-REDEEMED> (1265529)
<SHARES-REINVESTED> 2799
<NET-CHANGE-IN-ASSETS> 69554
<ACCUMULATED-NII-PRIOR> 207
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (258)
<GROSS-ADVISORY-FEES> 68
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1647
<AVERAGE-NET-ASSETS> 602333
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .25
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 121
<NAME> TREASURY II FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 617564
<INVESTMENTS-AT-VALUE> 617564
<RECEIVABLES> 14713
<ASSETS-OTHER> 9
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 632286
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2292
<TOTAL-LIABILITIES> 2292
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 630038
<SHARES-COMMON-STOCK> 83478
<SHARES-COMMON-PRIOR> 137540
<ACCUMULATED-NII-CURRENT> 210
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (254)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 629994
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13595
<OTHER-INCOME> 0
<EXPENSES-NET> (950)
<NET-INVESTMENT-INCOME> 12645
<REALIZED-GAINS-CURRENT> 4
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 12649
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2010)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 131607
<NUMBER-OF-SHARES-REDEEMED> (186417)
<SHARES-REINVESTED> 748
<NET-CHANGE-IN-ASSETS> (54060)
<ACCUMULATED-NII-PRIOR> 207
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (258)
<GROSS-ADVISORY-FEES> 68
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1647
<AVERAGE-NET-ASSETS> 602333
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .55
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 122
<NAME> TREASURY II FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 617564
<INVESTMENTS-AT-VALUE> 617564
<RECEIVABLES> 14713
<ASSETS-OTHER> 9
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 632286
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2292
<TOTAL-LIABILITIES> 2292
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 630038
<SHARES-COMMON-STOCK> 25196
<SHARES-COMMON-PRIOR> 19373
<ACCUMULATED-NII-CURRENT> 210
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (254)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 629994
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13595
<OTHER-INCOME> 0
<EXPENSES-NET> (950)
<NET-INVESTMENT-INCOME> 12645
<REALIZED-GAINS-CURRENT> 4
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 12649
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (400)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 105207
<NUMBER-OF-SHARES-REDEEMED> (99384)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 5824
<ACCUMULATED-NII-PRIOR> 207
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (258)
<GROSS-ADVISORY-FEES> 68
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1647
<AVERAGE-NET-ASSETS> 602333
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .75
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 130
<NAME> GOVERNMENT FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 370980
<INVESTMENTS-AT-VALUE> 370980
<RECEIVABLES> 1383
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 372473
<PAYABLE-FOR-SECURITIES> 14991
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1509
<TOTAL-LIABILITIES> 16500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 355994
<SHARES-COMMON-STOCK> 204840
<SHARES-COMMON-PRIOR> 204998
<ACCUMULATED-NII-CURRENT> 4
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (25)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 355973
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 31157
<OTHER-INCOME> 0
<EXPENSES-NET> (4514)
<NET-INVESTMENT-INCOME> 26643
<REALIZED-GAINS-CURRENT> 37
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 26680
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5491)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 738503
<NUMBER-OF-SHARES-REDEEMED> (741305)
<SHARES-REINVESTED> 2644
<NET-CHANGE-IN-ASSETS> (152)
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (62)
<GROSS-ADVISORY-FEES> 175
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5879
<AVERAGE-NET-ASSETS> 1554230
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> .00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .20
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 131
<NAME> GOVERNMENT FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 370980
<INVESTMENTS-AT-VALUE> 370980
<RECEIVABLES> 1383
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 372473
<PAYABLE-FOR-SECURITIES> 14991
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1509
<TOTAL-LIABILITIES> 16500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 355994
<SHARES-COMMON-STOCK> 97759
<SHARES-COMMON-PRIOR> 34677
<ACCUMULATED-NII-CURRENT> 4
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (25)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 355973
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 31157
<OTHER-INCOME> 0
<EXPENSES-NET> (4514)
<NET-INVESTMENT-INCOME> 26643
<REALIZED-GAINS-CURRENT> 37
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 26680
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1138)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 189256
<NUMBER-OF-SHARES-REDEEMED> (126194)
<SHARES-REINVESTED> 19
<NET-CHANGE-IN-ASSETS> 63083
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (62)
<GROSS-ADVISORY-FEES> 175
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5879
<AVERAGE-NET-ASSETS> 1554230
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> .00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .50
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 132
<NAME> GOVERNMENT FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 370980
<INVESTMENTS-AT-VALUE> 370980
<RECEIVABLES> 1383
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 372473
<PAYABLE-FOR-SECURITIES> 14991
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1509
<TOTAL-LIABILITIES> 16500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 355994
<SHARES-COMMON-STOCK> 48365
<SHARES-COMMON-PRIOR> 39889
<ACCUMULATED-NII-CURRENT> 4
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (25)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 355973
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 31157
<OTHER-INCOME> 0
<EXPENSES-NET> (4514)
<NET-INVESTMENT-INCOME> 26643
<REALIZED-GAINS-CURRENT> 37
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 26680
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1042)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 283768
<NUMBER-OF-SHARES-REDEEMED> (275293)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 8477
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (62)
<GROSS-ADVISORY-FEES> 175
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5879
<AVERAGE-NET-ASSETS> 1554230
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> .00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .70
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 133
<NAME> GOVERNMENT FUND SWEEP CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 370980
<INVESTMENTS-AT-VALUE> 370890
<RECEIVABLES> 1383
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 372473
<PAYABLE-FOR-SECURITIES> 14991
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1509
<TOTAL-LIABILITIES> 16500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 355994
<SHARES-COMMON-STOCK> 5030
<SHARES-COMMON-PRIOR> 3248
<ACCUMULATED-NII-CURRENT> 4
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (25)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 355973
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 31157
<OTHER-INCOME> 0
<EXPENSES-NET> (4514)
<NET-INVESTMENT-INCOME> 26643
<REALIZED-GAINS-CURRENT> 37
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 26680
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (96)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 45968
<NUMBER-OF-SHARES-REDEEMED> (44168)
<SHARES-REINVESTED> 1782
<NET-CHANGE-IN-ASSETS> 0
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (62)
<GROSS-ADVISORY-FEES> 175
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5879
<AVERAGE-NET-ASSETS> 1554230
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .95
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 134
<NAME> GOVERNMENT FUND CNI CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUN-20-1999
<INVESTMENTS-AT-COST> 370980
<INVESTMENTS-AT-VALUE> 370980
<RECEIVABLES> 1383
<ASSETS-OTHER> 110
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 372473
<PAYABLE-FOR-SECURITIES> 14991
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1509
<TOTAL-LIABILITIES> 16500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 355994
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 1080409
<ACCUMULATED-NII-CURRENT> 4
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (25)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 355973
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 31157
<OTHER-INCOME> 0
<EXPENSES-NET> (4514)
<NET-INVESTMENT-INCOME> 26643
<REALIZED-GAINS-CURRENT> 37
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 26680
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (18890)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1012115
<NUMBER-OF-SHARES-REDEEMED> (2104329)
<SHARES-REINVESTED> 11806
<NET-CHANGE-IN-ASSETS> (1080385)
<ACCUMULATED-NII-PRIOR> 18
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (62)
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 0
<AVERAGE-NET-ASSETS> 1554230
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> .00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .85
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 150
<NAME> TREASURY FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 517486
<INVESTMENTS-AT-VALUE> 517486
<RECEIVABLES> 1799
<ASSETS-OTHER> 58
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 519343
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2410
<TOTAL-LIABILITIES> 2410
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 516916
<SHARES-COMMON-STOCK> 206597
<SHARES-COMMON-PRIOR> 269686
<ACCUMULATED-NII-CURRENT> 25
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 516933
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13153
<OTHER-INCOME> 0
<EXPENSES-NET> (1272)
<NET-INVESTMENT-INCOME> 11881
<REALIZED-GAINS-CURRENT> (2)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 11879
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6014)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1027271
<NUMBER-OF-SHARES-REDEEMED> (1092083)
<SHARES-REINVESTED> 1723
<NET-CHANGE-IN-ASSETS> (63079)
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (6)
<GROSS-ADVISORY-FEES> 62
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1874
<AVERAGE-NET-ASSETS> 547476
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .20
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 151
<NAME> TREASURY FUND CLASS B
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 517486
<INVESTMENTS-AT-VALUE> 517486
<RECEIVABLES> 1799
<ASSETS-OTHER> 58
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 519343
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2410
<TOTAL-LIABILITIES> 2410
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 516916
<SHARES-COMMON-STOCK> 103229
<SHARES-COMMON-PRIOR> 96083
<ACCUMULATED-NII-CURRENT> 25
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 516933
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13153
<OTHER-INCOME> 0
<EXPENSES-NET> (1272)
<NET-INVESTMENT-INCOME> 11881
<REALIZED-GAINS-CURRENT> (2)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 11879
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2023)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 205244
<NUMBER-OF-SHARES-REDEEMED> (198126)
<SHARES-REINVESTED> 28
<NET-CHANGE-IN-ASSETS> 7150
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (6)
<GROSS-ADVISORY-FEES> 62
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1874
<AVERAGE-NET-ASSETS> 547476
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .50
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 152
<NAME> TREASURY FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 517486
<INVESTMENTS-AT-VALUE> 517486
<RECEIVABLES> 1799
<ASSETS-OTHER> 58
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 519343
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2410
<TOTAL-LIABILITIES> 2410
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 516916
<SHARES-COMMON-STOCK> 116852
<SHARES-COMMON-PRIOR> 10639
<ACCUMULATED-NII-CURRENT> 25
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 516933
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13153
<OTHER-INCOME> 0
<EXPENSES-NET> (1272)
<NET-INVESTMENT-INCOME> 11881
<REALIZED-GAINS-CURRENT> (2)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 11879
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2082)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 325949
<NUMBER-OF-SHARES-REDEEMED> (312737)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 13215
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (6)
<GROSS-ADVISORY-FEES> 62
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1874
<AVERAGE-NET-ASSETS> 547476
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .70
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 153
<NAME> TREASURY FUND SWEEP CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 517486
<INVESTMENTS-AT-VALUE> 517486
<RECEIVABLES> 1799
<ASSETS-OTHER> 58
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 519343
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2410
<TOTAL-LIABILITIES> 2410
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 516916
<SHARES-COMMON-STOCK> 90239
<SHARES-COMMON-PRIOR> 72361
<ACCUMULATED-NII-CURRENT> 25
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (8)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 516933
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 13153
<OTHER-INCOME> 0
<EXPENSES-NET> (1272)
<NET-INVESTMENT-INCOME> 11881
<REALIZED-GAINS-CURRENT> (2)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 11879
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1739)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 173995
<NUMBER-OF-SHARES-REDEEMED> (156117)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 17612
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (6)
<GROSS-ADVISORY-FEES> 62
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1874
<AVERAGE-NET-ASSETS> 547476
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .02
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (.02)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .95
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 170
<NAME> CORPORATE DAILY INCOME FUND CLASS A
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-START> FEB-01-1999
<PERIOD-END> JUL-31-1999
<INVESTMENTS-AT-COST> 113054
<INVESTMENTS-AT-VALUE> 112493
<RECEIVABLES> 767
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 113260
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 523
<TOTAL-LIABILITIES> 523
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 113294
<SHARES-COMMON-STOCK> 56854
<SHARES-COMMON-PRIOR> 45010
<ACCUMULATED-NII-CURRENT> 14
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (10)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 112737
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2663
<OTHER-INCOME> 0
<EXPENSES-NET> (170)
<NET-INVESTMENT-INCOME> 2493
<REALIZED-GAINS-CURRENT> (57)
<APPREC-INCREASE-CURRENT> (923)
<NET-CHANGE-FROM-OPS> 1513
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2428)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 51164
<NUMBER-OF-SHARES-REDEEMED> (28966)
<SHARES-REINVESTED> 1411
<NET-CHANGE-IN-ASSETS> 22694
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 47
<OVERDISTRIB-NII-PRIOR> (51)
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 49
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 362
<AVERAGE-NET-ASSETS> 98053
<PER-SHARE-NAV-BEGIN> 2.00
<PER-SHARE-NII> 0.05
<PER-SHARE-GAIN-APPREC> (.02)
<PER-SHARE-DIVIDEND> (.05)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.98
<EXPENSE-RATIO> .35
</TABLE>