<SEC-DOCUMENT>0001213900-24-016585.txt : 20240223
<SEC-HEADER>0001213900-24-016585.hdr.sgml : 20240223
<ACCEPTANCE-DATETIME>20240223175810
ACCESSION NUMBER:		0001213900-24-016585
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240221
FILED AS OF DATE:		20240223
DATE AS OF CHANGE:		20240223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chow Ling
		CENTRAL INDEX KEY:			0001724439
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32141
		FILM NUMBER:		24672946

	MAIL ADDRESS:	
		STREET 1:		1633 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASSURED GUARANTY LTD
		CENTRAL INDEX KEY:			0001273813
		STANDARD INDUSTRIAL CLASSIFICATION:	SURETY INSURANCE [6351]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			D0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		30 WOODBOURNE AVE
		STREET 2:		5TH FLOOR
		CITY:			HAMILTON BERMUDA
		STATE:			D0
		ZIP:			HM08
		BUSINESS PHONE:		441-279-5700

	MAIL ADDRESS:	
		STREET 1:		30 WOODBOURNE AVE
		STREET 2:		5TH FLOOR
		CITY:			HAMILTON BERMUDA
		STATE:			D0
		ZIP:			HM08

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AGR LTD
		DATE OF NAME CHANGE:	20040122

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AGC HOLDINGS LTD
		DATE OF NAME CHANGE:	20031218
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>marketforms-64882.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-02-21</periodOfReport>

    <issuer>
        <issuerCik>0001273813</issuerCik>
        <issuerName>ASSURED GUARANTY LTD</issuerName>
        <issuerTradingSymbol>AGO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001724439</rptOwnerCik>
            <rptOwnerName>Chow Ling</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>30 WOODBOURNE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HAMILTON</rptOwnerCity>
            <rptOwnerState>D0</rptOwnerState>
            <rptOwnerZipCode>HM08</rptOwnerZipCode>
            <rptOwnerStateDescription>BERMUDA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>General Counsel and Secretary</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2024-02-21</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8064</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>142798</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted share units awarded pursuant to the Assured Guaranty Ltd. 2004 Long-Term Incentive Plan (the &quot;Plan&quot;). With limited exceptions, the restricted share units vest on 2/21/2027, assuming that the holder remains employed at such time. Upon vesting, one Common Share will be delivered for each vested restricted share unit.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ling Chow</signatureName>
        <signatureDate>2024-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
