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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-11-16</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>2025-11-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>82155</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.01</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2236599</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were withheld to satisfy tax withholding obligations in connection with the vesting of previously awarded Restricted Share Units (&quot;RSUs&quot;). No shares were sold.</footnote>
        <footnote id="F2">Includes 881,016 ordinary shares.</footnote>
        <footnote id="F3">Includes 26,841 RSUs which shall vest in equal quarterly installments through 2026, 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 186,160 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="F5">Includes 361,117 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="F6">Includes 781,465 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>2025-11-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
