<PAGE>
EXHIBIT 12.1
CSFB (USA), INC.
STATEMENT RE COMPUTATION OF RATIO OF EARNINGS TO
FIXED CHARGES AND PREFERRED DIVIDENDS
(In thousands, except for ratio)
<TABLE>
<CAPTION>
FOR THE
NINE MONTHS
FOR THE YEARS ENDED ENDED
---------------------------------------------------------- -------------
1995 1996 1997 1998 1999 9/00
<S> <C> <C> <C> <C> <C> <C>
Earnings:
Income before provision for
income taxes $ 298,500 $ 473,800 $ 661,100 $ 600,500 $ 953,500 $ 725,700
Add: Fixed Charges
Interest expense (gross) 2,699,769 2,865,800 4,012,209 4,501,242 4,839,810 5,451,692
Interest factor in rents 22,064 25,515 29,351 38,517 52,563 44,133
---------- ---------- ---------- ---------- ---------- ----------
Total fixed charges 2,721,833 2,891,315 4,041,560 4,539,759 4,892,373 5,495,825
Add: Preferred dividends 19,868 18,653 12,144 21,310 21,180 15,867
Combined fixed charges and
preferred dividends 2,741,701 2,909,968 4,053,704 4,561,069 4,913,553 5,511,692
Earnings before fixed charges
and provision for income taxes $3,020,333 $3,365,115 $4,702,660 $5,140,259 $5,845,873 $6,221,525
========== ========== ========== ========== ========== ==========
Ratio of earnings to fixed
charges and preferred dividends 1.10 1.16 1.16 1.13 1.19 1.13
========== ========== ========== ========== ========== ==========
</TABLE>