Exhibit 12.1

ASSURED GUARANTY LTD.

COMPUTATION OF RATIO OF CONSOLIDATED EARNINGS TO FIXED CHARGES

(in millions, except for ratio amounts)

	Year Ended December 31,
	2016		2015		2014		2013		2012
Income (loss) before income taxes	$	1,017	$	1,431	$	1,531	$	1,142	$	132
Fixed Charges	142		145		136		156		174
Income (loss) as adjusted	1,159		1,576		1,667		1,298		306
Fixed charges:
Interest expense (1)	102		101		92		82		92
Portion of rents representative of the interest factor	4		4		3		4		4
Interest expense on financial guaranty variable interest entities’ (“FG VIE”) liabilities (1)	36		40		41		70		78
Total fixed charges	$	142	$	145	$	136	$	156	$	174
Ratio of consolidated earnings to fixed charges (1)	8.2		10.9		12.3		8.3		1.8

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(1) For purposes of computing the ratios, earnings consist of income (loss) before income tax expense plus fixed charges to the extent that these charges are included in the determination of earnings. Fixed charges consist of interest expense plus one-third of rent expense under operating leases, which are estimated by management to be the interest factor of these rentals. Interest expense includes interest on long term debt and interest expense on FG VIE liabilities with and without recourse. The Company is not primarily liable for the debt obligations issued by the FG VIEs they insure (i.e. with recourse) and would only be required to make payments on these obligations in the event that the issuer of such debt obligations defaults on any principal or interest due. FG VIEs’ liabilities that are insured by the Company are considered to be with recourse because the Company guarantees the payment of principal and interest regardless of the performance of the FG VIEs’ assets. FG VIEs’ liabilities that are not insured by the Company are considered to be without recourse because the payment of principal and interest on these liabilities is wholly dependent on the performance of the FG VIEs’ assets.