<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from the
CoreStates Financial Corp consolidated balance sheet as of December 31, 1997,
December 31, 1996 (restated), and December 31, 1995 (restated), and the related
consolidated statement of income, changes in shareholders' equity, and other
financial data included within management's discussion and analysis of financial
condition and results of operations for the twelve months ended December 31,
1997, December 31, 1996 (restated), and December 31, 1995 (restated) and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   12-MOS                   12-MOS                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1996             DEC-31-1995
<PERIOD-START>                             JAN-01-1997             JAN-01-1996             JAN-01-1995
<PERIOD-END>                               DEC-31-1997             DEC-31-1996             DEC-31-1995
<CASH>                                       3,829,893               3,462,287               3,662,143
<INT-BEARING-DEPOSITS>                       3,122,444               2,443,154               1,909,260
<FED-FUNDS-SOLD>                                41,207                 509,694                 719,937
<TRADING-ASSETS>                               495,472                 122,317                 147,218
<INVESTMENTS-HELD-FOR-SALE>                  2,109,254               2,394,166               2,572,315
<INVESTMENTS-CARRYING>                       1,351,137               1,689,058               3,059,917
<INVESTMENTS-MARKET>                         1,347,819               1,692,243               3,075,964
<LOANS>                                     34,813,886              32,331,297              31,175,378
<ALLOWANCE>                                    634,432                 710,327                 670,265
<TOTAL-ASSETS>                              48,460,965              45,494,194              45,997,242
<DEPOSITS>                                  34,187,890              33,727,156              33,963,820
<SHORT-TERM>                                 4,323,319               2,633,157               3,677,013
<LIABILITIES-OTHER>                          1,616,624               1,661,162               1,719,697
<LONG-TERM>                                  4,454,236               3,049,297               2,212,099
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                       223,599                 223,599                 230,231
<OTHER-SE>                                   3,013,833               3,472,095               3,645,334
<TOTAL-LIABILITIES-AND-EQUITY>              48,460,965              45,494,194              45,997,242
<INTEREST-LOAN>                              3,015,914               2,871,233               2,932,655
<INTEREST-INVEST>                              220,880                 277,766                 380,156
<INTEREST-OTHER>                               192,521                 149,205                 162,269
<INTEREST-TOTAL>                             3,429,315               3,298,204               3,475,080
<INTEREST-DEPOSIT>                             884,364                 841,780                 941,047
<INTEREST-EXPENSE>                           1,313,447               1,156,720               1,308,155
<INTEREST-INCOME-NET>                        2,115,868               2,141,484               2,166,925
<LOAN-LOSSES>                                  263,000                 228,767                 144,002
<SECURITIES-GAINS>                              21,111                  59,512                  31,475
<EXPENSE-OTHER>                              1,695,777               1,776,828               1,885,528
<INCOME-PRETAX>                              1,082,861               1,034,964               1,019,617
<INCOME-PRE-EXTRAORDINARY>                     813,279                 649,144                 655,176
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                   813,279                 649,144                 655,176
<EPS-PRIMARY>                                     4.00                    2.97                    2.95
<EPS-DILUTED>                                     3.96                    2.94                    2.92
<YIELD-ACTUAL>                                    5.22                    5.53                    5.47
<LOANS-NON>                                    253,909                 220,770                 223,602
<LOANS-PAST>                                    94,302                 113,268                  88,671
<LOANS-TROUBLED>                                    10                      18                   7,202
<LOANS-PROBLEM>                                      0                       0                       0
<ALLOWANCE-OPEN>                               710,327                 670,265                 681,124
<CHARGE-OFFS>                                  321,196                 281,690                 240,087
<RECOVERIES>                                    84,301                  92,985                  85,226
<ALLOWANCE-CLOSE>                              634,432                 710,327                 670,265
<ALLOWANCE-DOMESTIC>                           590,432                 675,327                 645,265
<ALLOWANCE-FOREIGN>                             44,000                  35,000                  25,000
<ALLOWANCE-UNALLOCATED>                              0                       0                       0


</TABLE>