<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Cash
Account Trust--Tax-Exempt Portfolio Semiannual Report for the period
ended 10/31/2000 and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<CIK> 0000858372
<NAME> CASH ACCOUNT TRUST
<SERIES>
<NUMBER> 100
<NAME> TAX-EXEMPT PORTFOLIO--SERVICE SHARES
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-2000
<PERIOD-START> MAY-01-2000
<PERIOD-END> OCT-31-2000
<INVESTMENTS-AT-COST> 968,170,854
<INVESTMENTS-AT-VALUE> 968,170,854
<RECEIVABLES> 5,012,018
<ASSETS-OTHER> 1,631,319
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 974,814,191
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3,110,165
<TOTAL-LIABILITIES> 3,110,165
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 515,203,403
<SHARES-COMMON-PRIOR> 431,297,315
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 971,704,026
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 19,687,446
<OTHER-INCOME> 0
<EXPENSES-NET> 3,102,751
<NET-INVESTMENT-INCOME> 16,584,695
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 16,584,695
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (16,584,695)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,032,944,597
<NUMBER-OF-SHARES-REDEEMED> (2,960,333,539)
<SHARES-REINVESTED> 11,295,030
<NET-CHANGE-IN-ASSETS> 206,215,137
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 725,443
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,109,169
<AVERAGE-NET-ASSETS> 499,286,864
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.02)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.92
</TABLE>
