1 EXHIBIT 12. STATEMENT RE: COMPUTATION OF RATIOS BancWest Corporation and Subsidiaries Computation of Consolidated Ratios of Earnings to Fixed Charges THREE MONTHS ENDED MARCH 31, ------------------------------ 1999 1998 --------- --------- (dollars in thousands) Income before income taxes $ 70,395 $ 33,152 --------- --------- Fixed charges:(1) Interest expense 102,260 65,745 Rental expense 3,733 2,740 --------- --------- 105,993 68,485 Less interest on deposits 81,976 51,033 --------- --------- Net fixed charges 24,017 17,452 --------- --------- Earnings, excluding interest on deposits $ 94,412 $ 50,604 ========= ========= Earnings, including interest on deposits $ 176,388 $ 101,637 ========= ========= Ratio of earnings to fixed charges: Excluding interest on deposits 3.93X 2.90x Including interest on deposits 1.66X 1.48x (1) For purposes of computing the consolidated ratios of earnings to fixed charges, earnings represent income before income taxes plus fixed charges. Fixed charges, excluding interest on deposits, include interest (other than on deposits), whether expensed or capitalized, and that portion of rental expense (generally one third) deemed representative of the interest factor. Fixed charges, including interest on deposits, consist of the foregoing items plus interest on deposits.