<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 10-Q 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> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<DEBT-HELD-FOR-SALE> 2,861
<DEBT-CARRYING-VALUE> 0
<DEBT-MARKET-VALUE> 0
<EQUITIES> 0
<MORTGAGE> 893
<REAL-ESTATE> 97
<TOTAL-INVEST> 4,024
<CASH> 309
<RECOVER-REINSURE> 0
<DEFERRED-ACQUISITION> 734
<TOTAL-ASSETS> 22,575
<POLICY-LOSSES> 724
<UNEARNED-PREMIUMS> 6
<POLICY-OTHER> 0
<POLICY-HOLDER-FUNDS> 2,979
<NOTES-PAYABLE> 565
0
0
<COMMON> 6
<OTHER-SE> 681
<TOTAL-LIABILITY-AND-EQUITY> 22,575
25
<INVESTMENT-INCOME> 158
<INVESTMENT-GAINS> (3)
<OTHER-INCOME> 144
<BENEFITS> 160
<UNDERWRITING-AMORTIZATION> 40
<UNDERWRITING-OTHER> 67
<INCOME-PRETAX> 36
<INCOME-TAX> 11
<INCOME-CONTINUING> 24
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 24
<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>