EXHIBIT 12.1 AMERICAN EXPRESS CREDIT CORPORATION COMPUTATION IN SUPPORT OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions) Three Months Ended March 31, Years Ended December 31, ------------------------- --------------------------------------------------------- 2005 2004 2004 2003 2002 2001 2000 ------------------------- --------------------------------------------------------- Earnings: Net income $ 95 $ 57 $ 234 $ 260 $ 228 $ 277 $ 286 Income tax provision 9 30 75 135 118 140 150 Interest expense 261 200 863 852 916 1,458 1,459 ------------------------- --------------------------------------------------------- Total earnings (a) $ 365 $ 287 $ 1,172 $ 1,247 $ 1,262 $ 1,875 $ 1,895 ========================= ========================================================= Fixed charges - interest expense (b) $ 261 $ 200 $ 863 $ 852 $ 916 $ 1,458 $ 1,459 ========================= ========================================================= Ratio of earnings to fixed charges (a/b) 1.40 1.43 1.36 1.46 1.38 1.29 1.30 Note: Gross rentals on long-term leases were minimal in amount in each of the periods shown.