EXHIBIT 12

Caterpillar Financial Services Corporation

COMPUTATION OF RATIO OF PROFIT TO FIXED CHARGES

(Unaudited)

(Dollars in Millions)

	Three Months Ended March 31,
	2013		2012
Profit	$	141	$	120
Add:
Provision for income taxes	43		46
Profit before income taxes	$	184	$	166
Fixed charges:
Interest expense	$	191	$	204
Rentals at computed interest*	1		1
Total fixed charges	$	192	$	205
Profit before income taxes plus fixed charges	$	376	$	371
Ratio of profit before income taxes plus fixed charges to fixed charges	1.96		1.81

*Those portions of rent expense that are representative of interest cost.