<PAGE> PAGE 1
000 A000000 03/31/98
000 C000000 0000797657
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 BT INVESTMENT FUNDS
001 B000000 811-4760
001 C000000 4122887496
002 A000000 1001 LIBERTY AVENUE
002 B000000 PITTSBURGH
002 C000000 PA
002 D010000 15222
002 D020000 3775
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 C010400 4
007 C010500 5
007 C020500 INTERNATIONAL EQUITY FUND
007 C030500 N
007 C010600 6
007 C010700 7
007 C010800 8
007 C020800 CAPITAL APPRECIATION FUND
007 C030800 N
007 C010900 9
007 C011000 10
007 C011100 11
007 C021100 INTERMEDIATE TAX FREE FUND
007 C031100 N
007 C011200 12
007 C011300 13
007 C011400 14
007 C011500 15
007 C021500 GLOBAL HIGH YIELD SECURITIES FUND
007 C031500 N
007 C011600 16
007 C021600 SMALL CAP FUND
007 C031600 N
007 C011700 17
007 C021700 PACIFIC BASIN EQUITY FUND
<PAGE> PAGE 2
007 C031700 N
007 C011800 18
007 C021800 LATIN AMERICAN EQUITY FUND
007 C031800 N
007 C011900 19
007 C021900 EUROPEAN EQUITY FUND
007 C031900 N
007 C012000 20
007 C022000 INTERNATIONAL BOND FUND
007 C032000 N
007 C012100 21
007 C012200 22
007 C012300 23
007 C012400 24
007 C012500 25
007 C012600 26
007 C012700 27
007 C012800 28
007 C012900 29
007 C013000 30
007 C013100 31
007 C013200 32
007 C013300 33
007 C013400 34
007 C013500 35
007 C013600 36
007 C013700 37
007 C013800 38
007 C013900 39
007 C014000 40
010 A00AA01 BANKERS TRUST COMPANY
010 C01AA01 NEW YORK
010 C02AA01 NY
010 C03AA01 10006
011 A00AA01 FEDERATED SERVICES COMPANY
011 B00AA01 8-41134
011 C01AA01 PITTSBURGH
011 C02AA01 PA
011 C03AA01 15222
011 C04AA01 3775
012 A00AA01 BANKERS TRUST COMPANY
012 B00AA01 84-xxxxxxx
012 C01AA01 NEW YORK
012 C02AA01 NY
012 C03AA01 10006
013 A00AA01 COOPERS & LYBRAND
013 B01AA01 KANSAS CITY
013 B02AA01 MO
013 B03AA01 64105
013 B04AA01 1716
015 A00AA01 BANKERS TRUST COMPANY
<PAGE> PAGE 3
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
015 C03AA01 10017
015 E03AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 59
019 C00AA00 BTTINFUNDS
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 INTERNATIONAL EQUITY PORTFOLIO
022 B000001 04-3148828
022 C000001 550862
022 D000001 255564
022 A000002 SMALL CAP EQUITY PORTFOLIO
022 B000002 04-3203566
022 C000002 205768
022 D000002 227244
022 A000003 CAPITAL APPRECIATION PORTFOLIO
022 B000003 04-3167398
022 C000003 53322
022 D000003 66114
022 A000004 LATIN AMERICAN EQUITY PORTFOLIO
022 B000004 04-3202920
022 C000004 29095
022 D000004 33992
022 A000005 PACIFIC BASIN EQUITY PORTFOLIO
022 B000005 04-3203567
022 C000005 21233
022 D000005 25928
022 A000006 GLOBAL HIGH YIELD PORTFOLIO
022 B000006 04-3202918
022 C000006 8274
022 D000006 7192
022 A000007 INTERMEDIATE TAX FREE PORTFOLIO
022 B000007 04-3148806
022 C000007 8581
022 D000007 3447
022 A000008 EUROPEAN EQUITY PORTFOLIO
022 B000008 04-3203570
022 C000008 0
<PAGE> PAGE 4
022 D000008 0
022 A000009 INTERNATIONAL BOND PORTFOLIO
022 B000009 04-3194188
022 C000009 0
022 D000009 0
022 C000010 0
022 D000010 0
023 C000000 877135
023 D000000 619481
024 00AA00 N
026 A000000 N
026 B000000 N
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
031 A00AA00 0
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 N
042 A00AA00 0
042 B00AA00 0
042 C00AA00 0
042 D00AA00 0
042 E00AA00 0
042 F00AA00 0
042 G00AA00 0
042 H00AA00 0
043 00AA00 0
044 00AA00 0
045 00AA00 N
048 00AA00 0.000
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
<PAGE> PAGE 5
048 B02AA00 0.000
048 C01AA00 0
048 C02AA00 0.000
048 D01AA00 0
048 D02AA00 0.000
048 E01AA00 0
048 E02AA00 0.000
048 F01AA00 0
048 F02AA00 0.000
048 G01AA00 0
048 G02AA00 0.000
048 H01AA00 0
048 H02AA00 0.000
048 I01AA00 0
048 I02AA00 0.000
048 J01AA00 0
048 J02AA00 0.000
048 K01AA00 0
048 K02AA00 0.000
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
058 A00AA00 N
058 B00AA00 N
058 C00AA00 N
058 D00AA00 N
058 E00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 2500
062 A00AA00 N
062 B00AA00 0.0
062 C00AA00 0.0
062 D00AA00 0.0
062 E00AA00 0.0
062 F00AA00 0.0
062 G00AA00 0.0
062 H00AA00 0.0
062 I00AA00 0.0
062 J00AA00 0.0
062 K00AA00 0.0
062 L00AA00 0.0
062 M00AA00 0.0
062 N00AA00 0.0
062 O00AA00 0.0
062 P00AA00 0.0
062 Q00AA00 0.0
062 R00AA00 0.0
063 A00AA00 0
<PAGE> PAGE 6
063 B00AA00 0.0
077 A000000 N
078 000000 N
080 A00AA00 NATIONAL UNION INSURANCE COMPANY
080 C00AA00 13150
081 A00AA00 Y
081 B00AA00 22
082 A00AA00 Y
082 B00AA00 25
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
028 A010500 63706
028 A020500 0
028 A030500 0
028 A040500 34112
028 B010500 61707
028 B020500 0
028 B030500 0
028 B040500 28733
028 C010500 63389
028 C020500 292
028 C030500 0
028 C040500 37704
028 D010500 100633
028 D020500 0
028 D030500 0
028 D040500 34570
028 E010500 118647
028 E020500 0
028 E030500 0
028 E040500 62009
028 F010500 147887
028 F020500 0
028 F030500 0
028 F040500 48649
<PAGE> PAGE 7
028 G010500 555969
028 G020500 292
028 G030500 0
028 G040500 245777
028 H000500 0
066 A000500 Y
066 B000500 N
066 C000500 Y
066 D000500 N
066 E000500 N
066 F000500 N
066 G000500 N
067 000500 N
068 A000500 N
068 B000500 Y
069 000500 N
070 A010500 Y
070 A020500 N
070 B010500 Y
070 B020500 N
070 C010500 Y
070 C020500 N
070 D010500 Y
070 D020500 N
070 E010500 N
070 E020500 N
070 F010500 Y
070 F020500 N
070 G010500 Y
070 G020500 N
070 H010500 Y
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 N
070 K010500 Y
070 K020500 Y
070 L010500 Y
070 L020500 N
070 M010500 Y
070 M020500 N
070 N010500 Y
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 N
070 Q010500 Y
070 Q020500 N
070 R010500 Y
<PAGE> PAGE 8
070 R020500 N
071 A000500 0
071 B000500 0
071 C000500 0
071 D000500 0
072 A000500 6
072 B000500 0
072 C000500 0
072 D000500 0
072 E000500 2030
072 F000500 0
072 G000500 2668
072 H000500 0
072 I000500 0
072 J000500 0
072 K000500 0
072 L000500 -2
072 M000500 1
072 N000500 8
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 2
072 S000500 2
072 T000500 0
072 U000500 0
072 V000500 0
072 W000500 2
072 X000500 2681
072 Y000500 14
072 Z000500 -637
072AA000500 0
072BB000500 1508
072CC010500 100831
072CC020500 0
072DD010500 403
072DD020500 0
072EE000500 15925
073 A010500 0.0148
073 A020500 0.0000
073 B000500 0.5850
073 C000500 0.0000
074 A000500 0
074 B000500 0
074 C000500 0
074 D000500 0
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 923000
<PAGE> PAGE 9
074 J000500 0
074 K000500 0
074 L000500 7960
074 M000500 57
074 N000500 931017
074 O000500 0
074 P000500 606
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 262
074 S000500 0
074 T000500 930149
074 U010500 38822
074 U020500 0
074 V010500 23.96
074 V020500 0.00
074 W000500 0.0000
074 X000500 9455
074 Y000500 0
075 A000500 0
075 B000500 629512
076 000500 0.00
028 A010800 7146
028 A020800 0
028 A030800 0
028 A040800 -2351
028 B010800 8391
028 B020800 0
028 B030800 0
028 B040800 7817
028 C010800 8788
028 C020800 4264
028 C030800 0
028 C040800 12501
028 D010800 8352
028 D020800 0
028 D030800 0
028 D040800 9401
028 E010800 7076
028 E020800 0
028 E030800 0
028 E040800 8301
028 F010800 13940
028 F020800 0
028 F030800 0
028 F040800 17383
028 G010800 53693
028 G020800 4264
028 G030800 0
<PAGE> PAGE 10
028 G040800 53052
028 H000800 0
066 A000800 Y
066 B000800 N
066 C000800 N
066 D000800 Y
066 E000800 N
066 F000800 N
066 G000800 N
067 000800 N
068 A000800 N
068 B000800 N
069 000800 N
070 A010800 Y
070 A020800 N
070 B010800 Y
070 B020800 N
070 C010800 Y
070 C020800 N
070 D010800 Y
070 D020800 N
070 E010800 N
070 E020800 N
070 F010800 Y
070 F020800 N
070 G010800 Y
070 G020800 N
070 H010800 Y
070 H020800 N
070 I010800 N
070 I020800 N
070 J010800 Y
070 J020800 N
070 K010800 Y
070 K020800 Y
070 L010800 Y
070 L020800 N
070 M010800 Y
070 M020800 N
070 N010800 Y
070 N020800 N
070 O010800 Y
070 O020800 N
070 P010800 Y
070 P020800 N
070 Q010800 Y
070 Q020800 N
070 R010800 Y
070 R020800 N
071 A000800 0
071 B000800 0
<PAGE> PAGE 11
071 C000800 0
071 D000800 0
072 A000800 6
072 B000800 0
072 C000800 0
072 D000800 0
072 E000800 -12
072 F000800 0
072 G000800 139
072 H000800 0
072 I000800 0
072 J000800 0
072 K000800 0
072 L000800 7
072 M000800 2
072 N000800 5
072 O000800 0
072 P000800 0
072 Q000800 0
072 R000800 2
072 S000800 2
072 T000800 0
072 U000800 0
072 V000800 0
072 W000800 2
072 X000800 159
072 Y000800 21
072 Z000800 -150
072AA000800 4380
072BB000800 0
072CC010800 0
072CC020800 1940
072DD010800 0
072DD020800 0
072EE000800 0
073 A010800 0.0000
073 A020800 0.0000
073 B000800 2.6382
073 C000800 0.0000
074 A000800 0
074 B000800 0
074 C000800 0
074 D000800 0
074 E000800 0
074 F000800 0
074 G000800 0
074 H000800 0
074 I000800 38608
074 J000800 0
074 K000800 0
074 L000800 436
<PAGE> PAGE 12
074 M000800 14
074 N000800 39058
074 O000800 0
074 P000800 18
074 Q000800 0
074 R010800 0
074 R020800 0
074 R030800 0
074 R040800 165
074 S000800 0
074 T000800 38875
074 U010800 2813
074 U020800 0
074 V010800 13.82
074 V020800 0.00
074 W000800 0.0000
074 X000800 289
074 Y000800 0
075 A000800 0
075 B000800 42921
076 000800 0.00
071 A001000 0
071 B001000 0
071 C001000 0
071 D001000 0
072 A001000 0
072 B001000 0
072 C001000 0
072 D001000 0
072 E001000 0
072 F001000 0
072 G001000 0
072 H001000 0
028 A011100 561
028 A021100 0
028 A031100 0
028 A041100 521
028 B011100 395
028 B021100 39
028 B031100 0
028 B041100 226
028 C011100 1035
028 C021100 34
028 C031100 0
028 C041100 554
028 D011100 1479
028 D021100 38
028 D031100 0
028 D041100 181
028 E011100 1054
028 E021100 40
<PAGE> PAGE 13
028 E031100 0
028 E041100 1411
028 F011100 3657
028 F021100 76
028 F031100 0
028 F041100 341
028 G011100 8181
028 G021100 227
028 G031100 0
028 G041100 3234
028 H001100 0
066 A001100 N
067 001100 N
068 A001100 N
068 B001100 N
069 001100 N
070 A011100 Y
070 A021100 N
070 B011100 N
070 B021100 N
070 C011100 Y
070 C021100 N
070 D011100 N
070 D021100 N
070 E011100 Y
070 E021100 N
070 F011100 N
070 F021100 N
070 G011100 Y
070 G021100 N
070 H011100 N
070 H021100 N
070 I011100 N
070 I021100 N
070 J011100 Y
070 J021100 N
070 K011100 Y
070 K021100 Y
070 L011100 N
070 L021100 N
070 M011100 N
070 M021100 N
070 N011100 Y
070 N021100 N
070 O011100 Y
070 O021100 N
070 P011100 Y
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
<PAGE> PAGE 14
070 R021100 N
071 A001100 0
071 B001100 0
071 C001100 0
071 D001100 0
072 A001100 6
072 B001100 0
072 C001100 0
072 D001100 0
072 E001100 434
072 F001100 0
072 G001100 40
072 H001100 0
072 I001100 0
072 J001100 0
072 K001100 0
072 L001100 7
072 M001100 1
072 N001100 4
072 O001100 0
072 P001100 0
072 Q001100 0
072 R001100 2
072 S001100 2
072 T001100 0
072 U001100 0
072 V001100 0
072 W001100 2
072 X001100 58
072 Y001100 18
072 Z001100 394
072AA001100 110
072BB001100 0
072CC011100 90
072CC021100 0
072DD011100 394
072DD021100 0
072EE001100 0
073 A011100 0.2110
073 A021100 0.0000
073 B001100 0.0000
073 C001100 0.0000
074 A001100 0
074 B001100 0
074 C001100 0
074 D001100 0
074 E001100 0
074 F001100 0
074 G001100 0
074 H001100 0
074 I001100 24161
<PAGE> PAGE 15
074 J001100 0
074 K001100 0
074 L001100 0
074 M001100 14
074 N001100 24175
074 O001100 0
074 P001100 4
074 Q001100 0
074 R011100 0
074 R021100 0
074 R031100 0
074 R041100 65
074 S001100 0
074 T001100 24106
074 U011100 2240
074 U021100 0
074 V011100 10.76
074 V021100 0.00
074 W001100 0.0000
074 X001100 79
074 Y001100 0
075 A001100 0
075 B001100 20099
076 001100 0.00
028 A011500 4119
028 A021500 0
028 A031500 0
028 A041500 729
028 B011500 2114
028 B021500 0
028 B031500 0
028 B041500 836
028 C011500 827
028 C021500 501
028 C031500 0
028 C041500 731
028 D011500 437
028 D021500 0
028 D031500 0
028 D041500 1389
028 E011500 494
028 E021500 0
028 E031500 0
028 E041500 653
028 F011500 283
028 F021500 117
028 F031500 0
028 F041500 690
028 G011500 8274
028 G021500 618
028 G031500 0
<PAGE> PAGE 16
028 G041500 5028
028 H001500 0
066 A001500 N
067 001500 N
068 A001500 N
068 B001500 N
069 001500 N
070 A011500 Y
070 A021500 N
070 B011500 N
070 B021500 N
070 C011500 Y
070 C021500 N
070 D011500 N
070 D021500 N
070 E011500 N
070 E021500 N
070 F011500 N
070 F021500 N
070 G011500 N
070 G021500 N
070 H011500 N
070 H021500 N
070 I011500 N
070 I021500 N
070 J011500 Y
070 J021500 N
070 K011500 Y
070 K021500 Y
070 L011500 Y
070 L021500 N
070 M011500 Y
070 M021500 N
070 N011500 Y
070 N021500 N
070 O011500 Y
070 O021500 N
070 P011500 N
070 P021500 N
070 Q011500 N
070 Q021500 N
070 R011500 N
070 R021500 N
071 A001500 0
071 B001500 0
071 C001500 0
071 D001500 0
072 A001500 6
072 B001500 0
072 C001500 0
072 D001500 0
<PAGE> PAGE 17
072 E001500 1036
072 F001500 0
072 G001500 124
072 H001500 0
072 I001500 0
072 J001500 0
072 K001500 0
072 L001500 12
072 M001500 1
072 N001500 3
072 O001500 0
072 P001500 0
072 Q001500 0
072 R001500 4
072 S001500 2
072 T001500 0
072 U001500 1
072 V001500 0
072 W001500 2
072 X001500 149
072 Y001500 51
072 Z001500 938
072AA001500 404
072BB001500 0
072CC011500 0
072CC021500 1180
072DD011500 922
072DD021500 0
072EE001500 1773
073 A011500 0.2122
073 A021500 0.0000
073 B001500 0.7150
073 C001500 0.0000
074 A001500 0
074 B001500 0
074 C001500 0
074 D001500 0
074 E001500 0
074 F001500 0
074 G001500 0
074 H001500 0
074 I001500 25816
074 J001500 0
074 K001500 0
074 L001500 0
074 M001500 21
074 N001500 25837
074 O001500 0
074 P001500 11
074 Q001500 0
074 R011500 0
<PAGE> PAGE 18
074 R021500 0
074 R031500 0
074 R041500 48
074 S001500 0
074 T001500 25778
074 U011500 2363
074 U021500 0
074 V011500 10.91
074 V021500 0.00
074 W001500 0.0000
074 X001500 160
074 Y001500 0
075 A001500 0
075 B001500 26179
076 001500 0.00
028 A011600 31321
028 A021600 0
028 A031600 0
028 A041600 51086
028 B011600 16085
028 B021600 0
028 B031600 0
028 B041600 18783
028 C011600 31917
028 C021600 17677
028 C031600 0
028 C041600 24208
028 D011600 38408
028 D021600 0
028 D031600 0
028 D041600 35217
028 E011600 53575
028 E021600 0
028 E031600 0
028 E041600 41848
028 F011600 34462
028 F021600 0
028 F031600 0
028 F041600 47406
028 G011600 205768
028 G021600 17677
028 G031600 0
028 G041600 218548
028 H001600 0
066 A001600 Y
066 B001600 N
066 C001600 Y
066 D001600 N
066 E001600 N
066 F001600 N
066 G001600 N
<PAGE> PAGE 19
067 001600 N
068 A001600 N
068 B001600 N
069 001600 N
070 A011600 Y
070 A021600 N
070 B011600 Y
070 B021600 N
070 C011600 N
070 C021600 N
070 D011600 Y
070 D021600 N
070 E011600 N
070 E021600 N
070 F011600 Y
070 F021600 N
070 G011600 Y
070 G021600 N
070 H011600 Y
070 H021600 N
070 I011600 N
070 I021600 N
070 J011600 Y
070 J021600 N
070 K011600 Y
070 K021600 Y
070 L011600 Y
070 L021600 N
070 M011600 Y
070 M021600 N
070 N011600 Y
070 N021600 N
070 O011600 Y
070 O021600 N
070 P011600 N
070 P021600 N
070 Q011600 N
070 Q021600 N
070 R011600 N
070 R021600 N
071 A001600 0
071 B001600 0
071 C001600 0
071 D001600 0
072 A001600 6
072 B001600 0
072 C001600 0
072 D001600 0
072 E001600 -172
072 F001600 0
072 G001600 788
<PAGE> PAGE 20
072 H001600 0
072 I001600 0
072 J001600 0
072 K001600 0
072 L001600 6
072 M001600 1
072 N001600 6
072 O001600 0
072 P001600 0
072 Q001600 0
072 R001600 2
072 S001600 2
072 T001600 0
072 U001600 0
072 V001600 0
072 W001600 2
072 X001600 807
072 Y001600 20
072 Z001600 -959
072AA001600 26046
072BB001600 0
072CC011600 0
072CC021600 31683
072DD011600 0
072DD021600 0
072EE001600 25572
073 A011600 0.0000
073 A021600 0.0000
073 B001600 2.2996
073 C001600 0.0000
074 A001600 0
074 B001600 0
074 C001600 0
074 D001600 0
074 E001600 0
074 F001600 0
074 G001600 0
074 H001600 0
074 I001600 258593
074 J001600 0
074 K001600 0
074 L001600 7713
074 M001600 20
074 N001600 266326
074 O001600 0
074 P001600 138
074 Q001600 0
074 R011600 0
074 R021600 0
074 R031600 0
074 R041600 270
<PAGE> PAGE 21
074 S001600 0
074 T001600 265918
074 U011600 12996
074 U021600 0
074 V011600 20.46
074 V021600 0.00
074 W001600 0.0000
074 X001600 659
074 Y001600 0
075 A001600 0
075 B001600 243059
076 001600 0.00
028 A011700 4232
028 A021700 0
028 A031700 0
028 A041700 7061
028 B011700 2744
028 B021700 0
028 B031700 0
028 B041700 4341
028 C011700 3187
028 C021700 651
028 C031700 0
028 C041700 4182
028 D011700 3129
028 D021700 0
028 D031700 0
028 D041700 1703
028 E011700 4958
028 E021700 0
028 E031700 0
028 E041700 4720
028 F011700 2983
028 F021700 0
028 F031700 0
028 F041700 2624
028 G011700 21233
028 G021700 651
028 G031700 0
028 G041700 24631
028 H001700 0
066 A001700 Y
066 B001700 N
066 C001700 Y
066 D001700 N
066 E001700 N
066 F001700 N
066 G001700 N
067 001700 N
068 A001700 N
068 B001700 Y
<PAGE> PAGE 22
069 001700 N
070 A011700 Y
070 A021700 N
070 B011700 Y
070 B021700 N
070 C011700 Y
070 C021700 N
070 D011700 Y
070 D021700 N
070 E011700 N
070 E021700 N
070 F011700 Y
070 F021700 N
070 G011700 Y
070 G021700 N
070 H011700 Y
070 H021700 N
070 I011700 N
070 I021700 N
070 J011700 Y
070 J021700 N
070 K011700 Y
070 K021700 Y
070 L011700 Y
070 L021700 N
070 M011700 Y
070 M021700 N
070 N011700 Y
070 N021700 N
070 O011700 Y
070 O021700 N
070 P011700 N
070 P021700 N
070 Q011700 N
070 Q021700 N
070 R011700 N
070 R021700 N
071 A001700 0
071 B001700 0
071 C001700 0
071 D001700 0
072 A001700 6
072 B001700 0
072 C001700 0
072 D001700 0
072 E001700 57
072 F001700 0
072 G001700 55
072 H001700 0
072 I001700 0
072 J001700 0
<PAGE> PAGE 23
072 K001700 0
072 L001700 6
072 M001700 1
072 N001700 2
072 O001700 0
072 P001700 0
072 Q001700 0
072 R001700 2
072 S001700 2
072 T001700 0
072 U001700 1
072 V001700 0
072 W001700 2
072 X001700 71
072 Y001700 16
072 Z001700 2
072AA001700 0
072BB001700 11172
072CC011700 4399
072CC021700 0
072DD011700 0
072DD021700 0
072EE001700 1873
073 A011700 0.0000
073 A021700 0.0000
073 B001700 0.9940
073 C001700 0.0000
074 A001700 0
074 B001700 0
074 C001700 0
074 D001700 0
074 E001700 0
074 F001700 0
074 G001700 0
074 H001700 0
074 I001700 15112
074 J001700 0
074 K001700 0
074 L001700 192
074 M001700 25
074 N001700 15329
074 O001700 0
074 P001700 6
074 Q001700 0
074 R011700 0
074 R021700 0
074 R031700 0
074 R041700 21
074 S001700 0
074 T001700 15302
074 U011700 2497
<PAGE> PAGE 24
074 U021700 0
074 V011700 6.13
074 V021700 0.00
074 W001700 0.0000
074 X001700 197
074 Y001700 0
075 A001700 0
075 B001700 14682
076 001700 0.00
028 A011800 4948
028 A021800 0
028 A031800 0
028 A041800 8475
028 B011800 7137
028 B021800 0
028 B031800 0
028 B041800 4887
028 C011800 5823
028 C021800 40
028 C031800 0
028 C041800 5734
028 D011800 2817
028 D021800 1
028 D031800 0
028 D041800 6513
028 E011800 5147
028 E021800 0
028 E031800 0
028 E041800 3918
028 F011800 3223
028 F021800 0
028 F031800 0
028 F041800 4268
028 G011800 29095
028 G021800 41
028 G031800 0
028 G041800 33795
028 H001800 0
066 A001800 Y
066 B001800 N
066 C001800 Y
066 D001800 N
066 E001800 N
066 F001800 N
066 G001800 N
067 001800 N
068 A001800 N
068 B001800 Y
069 001800 N
070 A011800 Y
070 A021800 N
<PAGE> PAGE 25
070 B011800 Y
070 B021800 N
070 C011800 N
070 C021800 N
070 D011800 Y
070 D021800 N
070 E011800 N
070 E021800 N
070 F011800 Y
070 F021800 N
070 G011800 Y
070 G021800 N
070 H011800 Y
070 H021800 N
070 I011800 Y
070 I021800 N
070 J011800 Y
070 J021800 N
070 K011800 Y
070 K021800 Y
070 L011800 Y
070 L021800 N
070 M011800 Y
070 M021800 N
070 N011800 Y
070 N021800 N
070 O011800 Y
070 O021800 N
070 P011800 N
070 P021800 N
070 Q011800 N
070 Q021800 N
070 R011800 N
070 R021800 N
071 A001800 0
071 B001800 0
071 C001800 0
071 D001800 0
072 A001800 6
072 B001800 0
072 C001800 0
072 D001800 0
072 E001800 261
072 F001800 0
072 G001800 144
072 H001800 0
072 I001800 0
072 J001800 0
072 K001800 0
072 L001800 7
072 M001800 1
<PAGE> PAGE 26
072 N001800 3
072 O001800 0
072 P001800 0
072 Q001800 0
072 R001800 3
072 S001800 2
072 T001800 0
072 U001800 1
072 V001800 0
072 W001800 2
072 X001800 163
072 Y001800 12
072 Z001800 110
072AA001800 778
072BB001800 0
072CC011800 0
072CC021800 2993
072DD011800 69
072DD021800 0
072EE001800 0
073 A011800 0.0023
073 A021800 0.0000
073 B001800 0.0000
073 C001800 0.0000
074 A001800 0
074 B001800 0
074 C001800 0
074 D001800 0
074 E001800 0
074 F001800 0
074 G001800 0
074 H001800 0
074 I001800 30552
074 J001800 0
074 K001800 0
074 L001800 22
074 M001800 16
074 N001800 30590
074 O001800 0
074 P001800 22
074 Q001800 0
074 R011800 0
074 R021800 0
074 R031800 0
074 R041800 55
074 S001800 0
074 T001800 30513
074 U011800 2009
074 U021800 0
074 V011800 15.19
074 V021800 0.00
<PAGE> PAGE 27
074 W001800 0.0000
074 X001800 329
074 Y001800 0
075 A001800 0
075 B001800 30398
076 001800 0.00
028 A011900 0
028 A021900 0
028 A031900 0
028 A041900 0
028 B011900 0
028 B021900 0
028 B031900 0
028 B041900 0
028 C011900 0
028 C021900 0
028 C031900 0
028 C041900 0
028 D011900 0
028 D021900 0
028 D031900 0
028 D041900 0
028 E011900 0
028 E021900 0
028 E031900 0
028 E041900 0
028 F011900 0
028 F021900 0
028 F031900 0
028 F041900 0
028 G011900 0
028 G021900 0
028 G031900 0
028 G041900 0
028 H001900 0
066 A001900 Y
066 B001900 N
066 C001900 Y
066 D001900 N
066 E001900 N
066 F001900 N
066 G001900 N
067 001900 N
068 A001900 N
068 B001900 Y
069 001900 N
070 A011900 Y
070 A021900 N
070 B011900 Y
070 B021900 N
070 C011900 N
<PAGE> PAGE 28
070 C021900 N
070 D011900 Y
070 D021900 N
070 E011900 N
070 E021900 N
070 F011900 Y
070 F021900 N
070 G011900 Y
070 G021900 N
070 H011900 Y
070 H021900 N
070 I011900 N
070 I021900 N
070 J011900 Y
070 J021900 N
070 K011900 Y
070 K021900 N
070 L011900 Y
070 L021900 N
070 M011900 Y
070 M021900 N
070 N011900 Y
070 N021900 N
070 O011900 N
070 O021900 N
070 P011900 Y
070 P021900 N
070 Q011900 N
070 Q021900 N
070 R011900 N
070 R021900 N
071 A001900 0
071 B001900 0
071 C001900 0
071 D001900 0
072 A001900 6
072 B001900 0
072 C001900 0
072 D001900 0
072 E001900 0
072 F001900 0
072 G001900 0
072 H001900 0
072 I001900 0
072 J001900 0
072 K001900 0
072 L001900 0
072 M001900 0
072 N001900 0
072 O001900 0
072 P001900 0
<PAGE> PAGE 29
072 Q001900 0
072 R001900 0
072 S001900 0
072 T001900 0
072 U001900 0
072 V001900 0
072 W001900 0
072 X001900 0
072 Y001900 0
072 Z001900 0
072AA001900 0
072BB001900 0
072CC011900 0
072CC021900 0
072DD011900 0
072DD021900 0
072EE001900 0
073 A011900 0.0000
073 A021900 0.0000
073 B001900 0.0000
073 C001900 0.0000
074 A001900 0
074 B001900 0
074 C001900 0
074 D001900 0
074 E001900 0
074 F001900 0
074 G001900 0
074 H001900 0
074 I001900 0
074 J001900 0
074 K001900 0
074 L001900 0
074 M001900 0
074 N001900 0
074 O001900 0
074 P001900 0
074 Q001900 0
074 R011900 0
074 R021900 0
074 R031900 0
074 R041900 0
074 S001900 0
074 T001900 0
074 U011900 0
074 U021900 0
074 V011900 0.00
074 V021900 0.00
074 W001900 0.0000
074 X001900 0
074 Y001900 0
<PAGE> PAGE 30
075 A001900 0
075 B001900 0
076 001900 0.00
028 A012000 0
028 A022000 0
028 A032000 0
028 A042000 0
028 B012000 0
028 B022000 0
028 B032000 0
028 B042000 0
028 C012000 0
028 C022000 0
028 C032000 0
028 C042000 0
028 D012000 0
028 D022000 0
028 D032000 0
028 D042000 0
028 E012000 0
028 E022000 0
028 E032000 0
028 E042000 0
028 F012000 0
028 F022000 0
028 F032000 0
028 F042000 0
028 G012000 0
028 G022000 0
028 G032000 0
028 G042000 0
028 H002000 0
070 A012000 Y
070 A022000 N
070 B012000 N
070 B022000 N
070 C012000 N
070 C022000 N
070 D012000 N
070 D022000 N
070 E012000 N
070 E022000 N
070 F012000 N
070 F022000 N
070 G012000 Y
070 G022000 N
070 H012000 N
070 H022000 N
070 I012000 N
070 I022000 N
070 J012000 N
<PAGE> PAGE 31
070 J022000 N
070 K012000 Y
070 K022000 N
070 L012000 Y
070 L022000 N
070 M012000 Y
070 M022000 N
070 N012000 Y
070 N022000 N
070 O012000 Y
070 O022000 N
070 P012000 Y
070 P022000 N
070 Q012000 N
070 Q022000 N
070 R012000 N
070 R022000 N
071 A002000 0
071 B002000 0
071 C002000 0
071 D002000 0
072 A002000 6
072 B002000 0
072 C002000 0
072 D002000 0
072 E002000 0
072 F002000 0
072 G002000 0
072 H002000 0
072 I002000 0
072 J002000 0
072 K002000 0
072 L002000 0
072 M002000 0
072 N002000 0
072 O002000 0
072 P002000 0
072 Q002000 0
072 R002000 0
072 S002000 0
072 T002000 0
072 U002000 0
072 V002000 0
072 W002000 0
072 X002000 0
072 Y002000 0
072 Z002000 0
072AA002000 0
072BB002000 0
072CC012000 0
072CC022000 0
<PAGE> PAGE 32
072DD012000 0
072DD022000 0
072EE002000 0
073 A012000 0.0000
073 A022000 0.0000
073 B002000 0.0000
073 C002000 0.0000
074 A002000 0
074 B002000 0
074 C002000 0
074 D002000 0
074 E002000 0
074 F002000 0
074 G002000 0
074 H002000 0
074 I002000 0
074 J002000 0
074 K002000 0
074 L002000 0
074 M002000 0
074 N002000 0
074 O002000 0
074 P002000 0
074 Q002000 0
074 R012000 0
074 R022000 0
074 R032000 0
074 R042000 0
074 S002000 0
074 T002000 0
074 U012000 0
074 U022000 0
074 V012000 0.00
074 V022000 0.00
074 W002000 0.0000
074 X002000 0
074 Y002000 0
075 A002000 0
075 B002000 0
076 002000 0.00
SIGNATURE JAY S. NEUMAN
TITLE SECRETARY
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 15
<NAME> BT INVESTMENT GLOBAL HIGH YIELD FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 25815877
<INVESTMENTS-AT-VALUE> 25815877
<RECEIVABLES> 1160
<ASSETS-OTHER> 20068
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 25837105
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 59103
<TOTAL-LIABILITIES> 59103
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 24083212
<SHARES-COMMON-STOCK> 2363138
<SHARES-COMMON-PRIOR> 2035012
<ACCUMULATED-NII-CURRENT> 16196
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 203676
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1474918
<NET-ASSETS> 25778002
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 1036034
<EXPENSES-NET> 97906
<NET-INVESTMENT-INCOME> 938128
<REALIZED-GAINS-CURRENT> 404265
<APPREC-INCREASE-CURRENT> (1179609)
<NET-CHANGE-FROM-OPS> 162784
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 921932
<DISTRIBUTIONS-OF-GAINS> 1772759
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 8274372
<NUMBER-OF-SHARES-REDEEMED> 5028284
<SHARES-REINVESTED> 617855
<NET-CHANGE-IN-ASSETS> 1332036
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 1572170
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 149041
<AVERAGE-NET-ASSETS> 26178555
<PER-SHARE-NAV-BEGIN> 12.01
<PER-SHARE-NII> .22
<PER-SHARE-GAIN-APPREC> (.40)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .92
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.91
<EXPENSE-RATIO> 150
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 8
<NAME> BT INVESTMENT CAPITAL APPRECIATION FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 38607944
<INVESTMENTS-AT-VALUE> 38607944
<RECEIVABLES> 436880
<ASSETS-OTHER> 13912
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 39058736
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 183846
<TOTAL-LIABILITIES> 183846
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 26260145
<SHARES-COMMON-STOCK> 2813060
<SHARES-COMMON-PRIOR> 3117530
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 150907
<ACCUMULATED-NET-GAINS> 2713871
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 10051781
<NET-ASSETS> 38874890
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> (11795)
<EXPENSES-NET> 139112
<NET-INVESTMENT-INCOME> (150907)
<REALIZED-GAINS-CURRENT> 4380471
<APPREC-INCREASE-CURRENT> (1939672)
<NET-CHANGE-FROM-OPS> 2289892
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 7936408
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 53693330
<NUMBER-OF-SHARES-REDEEMED> 62438272
<SHARES-REINVESTED> 4263958
<NET-CHANGE-IN-ASSETS> (10127500)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 6269808
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 160022
<AVERAGE-NET-ASSETS> 42921379
<PER-SHARE-NAV-BEGIN> 15.72
<PER-SHARE-NII> (.05)
<PER-SHARE-GAIN-APPREC> .79
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 2.64
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.82
<EXPENSE-RATIO> 125
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 5
<NAME> BT INVESTMENT INTERNATIONAL EQUITY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 923000093
<INVESTMENTS-AT-VALUE> 923000093
<RECEIVABLES> 7960140
<ASSETS-OTHER> 117656
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 931077889
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 928745
<TOTAL-LIABILITIES> 928745
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 731393166
<SHARES-COMMON-STOCK> 38821666
<SHARES-COMMON-PRIOR> 23751549
<ACCUMULATED-NII-CURRENT> 2040972
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 7611862
<ACCUM-APPREC-OR-DEPREC> 204326868
<NET-ASSETS> 930149144
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 2030217
<EXPENSES-NET> 2668096
<NET-INVESTMENT-INCOME> (637879)
<REALIZED-GAINS-CURRENT> (1507755)
<APPREC-INCREASE-CURRENT> 100831232
<NET-CHANGE-FROM-OPS> 98685598
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 402898
<DISTRIBUTIONS-OF-GAINS> 15925362
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 555969484
<NUMBER-OF-SHARES-REDEEMED> 245777739
<SHARES-REINVESTED> 12079856
<NET-CHANGE-IN-ASSETS> 404628939
<ACCUMULATED-NII-PRIOR> 3081749
<ACCUMULATED-GAINS-PRIOR> 9821255
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2681708
<AVERAGE-NET-ASSETS> 629511640
<PER-SHARE-NAV-BEGIN> 22.13
<PER-SHARE-NII> (.06)
<PER-SHARE-GAIN-APPREC> 2.49
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .60
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 23.96
<EXPENSE-RATIO> 150
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 11
<NAME> INTERMEDIATE TAX FREE FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 24160930
<INVESTMENTS-AT-VALUE> 24160930
<RECEIVABLES> 0
<ASSETS-OTHER> 13987
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 24174917
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 69307
<TOTAL-LIABILITIES> 69307
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 23262933
<SHARES-COMMON-STOCK> 2239510
<SHARES-COMMON-PRIOR> 1759167
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 71
<ACCUMULATED-NET-GAINS> 134652
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 708096
<NET-ASSETS> 24105610
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 434313
<EXPENSES-NET> 40089
<NET-INVESTMENT-INCOME> 394224
<REALIZED-GAINS-CURRENT> 109880
<APPREC-INCREASE-CURRENT> 89777
<NET-CHANGE-FROM-OPS> 593881
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 394295
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 8180695
<NUMBER-OF-SHARES-REDEEMED> 3233913
<SHARES-REINVESTED> 226841
<NET-CHANGE-IN-ASSETS> 5373209
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 24772
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 57756
<AVERAGE-NET-ASSETS> 20099394
<PER-SHARE-NAV-BEGIN> 10.65
<PER-SHARE-NII> .21
<PER-SHARE-GAIN-APPREC> .11
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .21
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.76
<EXPENSE-RATIO> 85
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 16
<NAME> BT INVESTMENT SMALL CAP FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 258592675
<INVESTMENTS-AT-VALUE> 258592675
<RECEIVABLES> 7713311
<ASSETS-OTHER> 20068
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 266326054
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 407993
<TOTAL-LIABILITIES> 407993
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 205085581
<SHARES-COMMON-STOCK> 12996201
<SHARES-COMMON-PRIOR> 12089943
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 959483
<ACCUMULATED-NET-GAINS> 10901075
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 50890888
<NET-ASSETS> 265918061
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> (171663)
<EXPENSES-NET> 787820
<NET-INVESTMENT-INCOME> (959483)
<REALIZED-GAINS-CURRENT> 26045690
<APPREC-INCREASE-CURRENT> (31683356)
<NET-CHANGE-FROM-OPS> (6597149)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 25572431
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 212636704
<NUMBER-OF-SHARES-REDEEMED> 218547985
<SHARES-REINVESTED> 17676714
<NET-CHANGE-IN-ASSETS> (20404147)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 10427816
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 808908
<AVERAGE-NET-ASSETS> 243059095
<PER-SHARE-NAV-BEGIN> 23.68
<PER-SHARE-NII> (.07)
<PER-SHARE-GAIN-APPREC> (.85)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 2.30
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 20.46
<EXPENSE-RATIO> 18
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 18
<NAME> BT INVESTMENT LATIN AMERICAN EQUITY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 30551853
<INVESTMENTS-AT-VALUE> 30551853
<RECEIVABLES> 21684
<ASSETS-OTHER> 16609
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 30590146
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76927
<TOTAL-LIABILITIES> 76927
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 28758136
<SHARES-COMMON-STOCK> 2008867
<SHARES-COMMON-PRIOR> 2376561
<ACCUMULATED-NII-CURRENT> 40649
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (777573)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2492007
<NET-ASSETS> 30513219
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 261143
<EXPENSES-NET> 151498
<NET-INVESTMENT-INCOME> 109645
<REALIZED-GAINS-CURRENT> 777653
<APPREC-INCREASE-CURRENT> (3049095)
<NET-CHANGE-FROM-OPS> (2161797)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 68996
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 29095467
<NUMBER-OF-SHARES-REDEEMED> 33805882
<SHARES-REINVESTED> 41256
<NET-CHANGE-IN-ASSETS> (4669159)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 1555226
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 163191
<AVERAGE-NET-ASSETS> 30398378
<PER-SHARE-NAV-BEGIN> 15.74
<PER-SHARE-NII> .04
<PER-SHARE-GAIN-APPREC> (.59)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 15.19
<EXPENSE-RATIO> 200
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the BT
Investment Funds Semiannual Report dated March 31, 1998, and is qualified
in its entirety by reference to such Semiannual Report.
</LEGEND>
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 17
<NAME> BT INVESTMENT PACIFIC BASIN EQUITY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1998
<PERIOD-START> OCT-01-1997
<PERIOD-END> MAR-31-1998
<INVESTMENTS-AT-COST> 15111541
<INVESTMENTS-AT-VALUE> 15111541
<RECEIVABLES> 195666
<ASSETS-OTHER> 24965
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 15332172
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 30528
<TOTAL-LIABILITIES> 30528
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 26182121
<SHARES-COMMON-STOCK> 2497461
<SHARES-COMMON-PRIOR> 2607284
<ACCUMULATED-NII-CURRENT> 370529
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 11850262
<ACCUM-APPREC-OR-DEPREC> 599256
<NET-ASSETS> 15301644
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 57490
<EXPENSES-NET> 54898
<NET-INVESTMENT-INCOME> 2592
<REALIZED-GAINS-CURRENT> (11172127)
<APPREC-INCREASE-CURRENT> 4398933
<NET-CHANGE-FROM-OPS> (6773194)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 1872886
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 21232833
<NUMBER-OF-SHARES-REDEEMED> 24440103
<SHARES-REINVESTED> 651103
<NET-CHANGE-IN-ASSETS> (11199655)
<ACCUMULATED-NII-PRIOR> 367937
<ACCUMULATED-GAINS-PRIOR> 1194751
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 73398
<AVERAGE-NET-ASSETS> 14682256
<PER-SHARE-NAV-BEGIN> 10.16
<PER-SHARE-NII> (.22)
<PER-SHARE-GAIN-APPREC> (2.82)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .99
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 6.13
<EXPENSE-RATIO> 175
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>