<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE PROBUSINESS SERVICES, INC. FORM 10-K FOR THE YEAR ENDED JUNE 30,
2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUN-30-2000
<PERIOD-START> JUL-01-1999
<PERIOD-END> JUN-30-2000
<CASH> 27,585
<SECURITIES> 13,336
<RECEIVABLES> 12,454
<ALLOWANCES> 1,685
<INVENTORY> 0
<CURRENT-ASSETS> 1,116,513
<PP&E> 63,272
<DEPRECIATION> 22,737
<TOTAL-ASSETS> 1,182,221
<CURRENT-LIABILITIES> 1,076,334
<BONDS> 0
0
0
<COMMON> 23
<OTHER-SE> 92,427
<TOTAL-LIABILITY-AND-EQUITY> 1,182,221
<SALES> 0
<TOTAL-REVENUES> 104,072
<CGS> 0
<TOTAL-COSTS> 49,378
<OTHER-EXPENSES> 71,526
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 512
<INCOME-PRETAX> (13,917)
<INCOME-TAX> 0
<INCOME-CONTINUING> (13,917)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (13,917)
<EPS-BASIC> (.60)
<EPS-DILUTED> (.60)
</TABLE>