<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000797657
<NAME> BT INVESTMENT FUNDS
<SERIES>
<NUMBER> 3
<NAME> CASH MANAGEMENT INVESTMENT
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 5951
<OTHER-ITEMS-ASSETS> 198171249
<TOTAL-ASSETS> 198177200
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> (1773039)
<TOTAL-LIABILITIES> (1773039)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 196459912
<SHARES-COMMON-STOCK> 196459912
<SHARES-COMMON-PRIOR> 154362574
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (55751)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 196404161
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 0
<OTHER-INCOME> 6538236
<EXPENSES-NET> (618898)
<NET-INVESTMENT-INCOME> 5919338
<REALIZED-GAINS-CURRENT> 2419
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 5921757
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5919338)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2318983381
<NUMBER-OF-SHARES-REDEEMED> (2277672357)
<SHARES-REINVESTED> 786314
<NET-CHANGE-IN-ASSETS> 42099757
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (58151)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (628798)
<AVERAGE-NET-ASSETS> 196985846
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.030
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> (0.030)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.750
</TABLE>
