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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-10-20</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000915840</issuerCik>
        <issuerName>BEAZER HOMES USA INC</issuerName>
        <issuerTradingSymbol>BZH</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002032847</rptOwnerCik>
            <rptOwnerName>Dunn Michael Anthony</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>2002 SUMMIT BLVD</rptOwnerStreet1>
            <rptOwnerStreet2>15TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30319</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, GC and Corp Secretary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8432</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26077</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>14125</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11952</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11952</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.95</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>449</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F5"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2033-02-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>449</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 reports transactions in securities of Beazer Homes USA, Inc. (the &quot;Company&quot;) pursuant to the Agreement and Plan of Merger, dated as of August 6, 2026 (the &quot;Merger Agreement&quot;), by and among the Company, Dream Finders Homes, Inc. (&quot;Parent&quot;) and Bulldogs Merger Sub, Inc. (&quot;Merger Sub&quot;), pursuant to which Merger Sub merged with and into the Company (the &quot;Merger&quot;), with the Company continuing as the surviving corporation and a wholly owned subsidiary of Parent.</footnote>
        <footnote id="F2">At the effective time of the Merger (the &quot;Effective Time&quot;), each outstanding share of Company common stock, par value $0.001 per share (&quot;Common Stock&quot;), reported in this Form 4 was cancelled and automatically converted into the right to receive $33.50 in cash, without interest, subject to any applicable withholding taxes (such amount per share, the &quot;Merger Consideration&quot;).</footnote>
        <footnote id="F3">Immediately prior to the Effective Time, each of these restricted stock awards (&quot;Company RSA&quot;), whether vested or unvested, that was outstanding as of immediately prior to the Effective Time was cancelled and converted into the right to receive an amount in cash (without interest) equal to the product of (A) the aggregate number of shares of Common Stock subject to such Company RSA, multiplied by (B) the Merger Consideration, less applicable taxes required to be withheld with respect to such payment.</footnote>
        <footnote id="F4">Immediately prior to the Effective Time, each of these performance-based restricted stock awards (&quot;Company PSA&quot;), whether vested or unvested, that was outstanding as of immediately prior to the Effective Time was cancelled and converted into the right to receive an amount in cash (without interest) equal to the product of (A) the total number of shares of Common Stock subject to such Company PSA (with the performance conditions for any uncompleted periods deemed achieved at target level), multiplied by (B) the Merger Consideration, less applicable taxes required to be withheld with respect to such payment.</footnote>
        <footnote id="F5">Immediately prior to the Effective Time, each option to purchase shares of Common Stock granted under the Company's equity plans (each, a &quot;Company Option&quot;) that was outstanding and unexercised, whether vested or unvested, as of immediately prior to the Effective Time was fully vested, cancelled and converted into the right to receive an amount in cash (without interest), if any, equal to the product of (A) the total number of shares of Common Stock subject to such Company Option, multiplied by (B) the excess, if any, of the Merger Consideration over the exercise price per share under such Company Option, less applicable taxes required to be withheld with respect to such payment; provided, however, that any Company Option which had a per share exercise price that was greater than or equal to the Merger Consideration was cancelled at the Effective Time for no consideration or payment.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kristi O. Crawford, Attorney-in-Fact</signatureName>
        <signatureDate>2026-10-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
