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

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-01-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000852766</issuerCik>
        <issuerName>YTB International, Inc.</issuerName>
        <issuerTradingSymbol>YTBLA.PK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001312667</rptOwnerCik>
            <rptOwnerName>Tomer J Lloyd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O YTB INTERNATIONAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1901 EAST EDWARDSVILLE ROAD</rptOwnerStreet2>
            <rptOwnerCity>WOOD RIVER</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>62095</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
                <footnoteId id="F3"/>
            </securityTitle>
            <transactionDate>
                <value>2011-01-03</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>355644</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1555700</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
                <footnoteId id="F2"/>
                <footnoteId id="F3"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8107677</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Great River Enterprises, LP#1</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>600000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By spouse and children</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Refers solely to J. Lloyd Tomer.</footnote>
        <footnote id="F2">The Reporting Person is a member of a Section 13(d) group and a party (via Great River Enterprises, LP#1) to a certain Stockholders' Agreement, dated as of December 8, 2004, by and among Great River Enterprises, LP#1 and other stockholders of the Issuer that together own a significant percentage of the Issuer's outstanding common stock, pursuant to which the Reporting Person shares voting power over additional shares subject to the voting arrangements thereunder.  In addition, as a result of the grant, on November 22, 2006, to the Reporting Person and other members of the Reporting Person's Section 13(d) group of an irrevocable proxy with respect to additional shares of the Issuer's Common Stock, the Reporting Person directly shares voting power with respect to such additional shares.  The Reporting Person does not possess a pecuniary interest with respect to any such shares, however, and has therefore not reported them in this Form 4.</footnote>
        <footnote id="F3">)  The Issuer has two classes of common stock, Class A Common Stock and Class B Common Stock.  The two classes of common stock are similar in all respects except as to voting power, as shares of Class A Common Stock are entitled to one-tenth vote per share, and shares of Class B Common Stock, one vote per share, on all matters submitted to a vote of the Issuer's stockholders.  Because shares of Class B Common Stock automatically convert into shares of Class A Common Stock on a one-for-one basis upon sale or other disposition (with the exception of transfers among related entities, transfers to trusts for the benefit of the transferring holder of the Class B Common Stock, bona fide pledges under financing arrangements and similar transfers), the Reporting Person has included all shares of Class B Common Stock that he holds in calculating and reporting the total number of shares of Class A Common Stock that he holds, has acquired or has disposed of,  throughout this Form 4.</footnote>
        <footnote id="F4">The transaction reported in this row was an involuntary forfeiture of restricted stock..  Because certain performance goals were not attained, these shares granted pursuant to a restricted stock award agreement with the Issuer did not vest on January 3, 2011 and were forfeited as a result.</footnote>
        <footnote id="F5">The Reporting Person is the sole stockholder of Tomer &amp; Associates, Inc., a corporation that is the general partner of Great River Enterprises, LP#1, a limited partnership that owns the securities reported in this row.</footnote>
        <footnote id="F6">Such 600,000 shares are held by the Reporting Person's spouse and by children who share the Reporting Person's household.  The Reporting Person disclaims beneficial ownership with respect to all such shares.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ J. Lloyd Tomer</signatureName>
        <signatureDate>2011-04-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
