<TABLE> <S> <C>
<PAGE>
<ARTICLE> 7
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENT OF INCOME AND THE CONSOLIDATED BALANCE SHEET FOUND ON
PAGES 1 AND 3 OF THE COMPANY'S FORM 10Q FOR THE YEAR TO DATE (IN MILLIONS)
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000745544
<NAME> SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
<MULTIPLIER> 1,000,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<DEBT-HELD-FOR-SALE> 3,017
<DEBT-CARRYING-VALUE> 0
<DEBT-MARKET-VALUE> 0
<EQUITIES> 0
<MORTGAGE> 891
<REAL-ESTATE> 96
<TOTAL-INVEST> 4,267
<CASH> 322
<RECOVER-REINSURE> 0
<DEFERRED-ACQUISITION> 763
<TOTAL-ASSETS> 23,755
<POLICY-LOSSES> 719
<UNEARNED-PREMIUMS> 10
<POLICY-OTHER> 0
<POLICY-HOLDER-FUNDS> 3,271
<NOTES-PAYABLE> 565
0
0
<COMMON> 6
<OTHER-SE> 679
<TOTAL-LIABILITY-AND-EQUITY> 23,755
34
<INVESTMENT-INCOME> 225
<INVESTMENT-GAINS> (4)
<OTHER-INCOME> 213
<BENEFITS> 247
<UNDERWRITING-AMORTIZATION> 70
<UNDERWRITING-OTHER> 105
<INCOME-PRETAX> 14
<INCOME-TAX> (1)
<INCOME-CONTINUING> 15
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 15
<EPS-BASIC> 0
<EPS-DILUTED> 0
<RESERVE-OPEN> 0
<PROVISION-CURRENT> 0
<PROVISION-PRIOR> 0
<PAYMENTS-CURRENT> 0
<PAYMENTS-PRIOR> 0
<RESERVE-CLOSE> 0
<CUMULATIVE-DEFICIENCY> 0
</TABLE>