<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001840502</issuerCik>
        <issuerName>Taboola.com Ltd.</issuerName>
        <issuerTradingSymbol>TBLA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001953238</rptOwnerCik>
            <rptOwnerName>Walker Stephen C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>16 MADISON SQ W 7TH FL</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10010</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1089799</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.44</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3236025</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Consists of Restricted Share Units (&quot;RSUs&quot;) granted pursuant to the Issuer's 2021 Share Incentive Plan. The RSUs shall vest in equal quarterly installments through 2030, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Each RSU represents the right to receive one ordinary share upon vesting and settlement.</footnote>
        <footnote id="F2">Includes 954,953 ordinary shares.</footnote>
        <footnote id="F3">Includes 148,928 RSUs which shall vest in equal quarterly installments through 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Each RSU represents the right to receive one ordinary share upon vesting and settlement.</footnote>
        <footnote id="F4">Includes 320,993 RSUs which shall vest in equal quarterly installments through 2028, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Each RSU represents the right to receive one ordinary share upon vesting and settlement.</footnote>
        <footnote id="F5">Includes 721,352 RSUs which shall vest in equal quarterly installments through 2029, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Each RSU represents the right to receive one ordinary share upon vesting and settlement.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John Ferrantino, Attorney-in-fact</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
