<SEC-DOCUMENT>0001048268-21-000118.txt : 20210702
<SEC-HEADER>0001048268-21-000118.hdr.sgml : 20210702
<ACCEPTANCE-DATETIME>20210702170552
ACCESSION NUMBER:		0001048268-21-000118
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210701
FILED AS OF DATE:		20210702
DATE AS OF CHANGE:		20210702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cleveland Todd M
		CENTRAL INDEX KEY:			0001407402

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13783
		FILM NUMBER:		211071303

	MAIL ADDRESS:	
		STREET 1:		107 W. FRANKLIN ST.
		CITY:			ELKHART
		STATE:			IN
		ZIP:			46515

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IES Holdings, Inc.
		CENTRAL INDEX KEY:			0001048268
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL WORK [1731]
		IRS NUMBER:				760542208
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		5433 WESTHEIMER
		STREET 2:		SUITE 500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
		BUSINESS PHONE:		7138601500

	MAIL ADDRESS:	
		STREET 1:		5433 WESTHEIMER
		STREET 2:		SUITE 500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Integrated Electrical Services, Inc.
		DATE OF NAME CHANGE:	20150106

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTEGRATED ELECTRICAL SERVICES INC
		DATE OF NAME CHANGE:	19971022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_162525989153053.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-07-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001048268</issuerCik>
        <issuerName>IES Holdings, Inc.</issuerName>
        <issuerTradingSymbol>IESC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001407402</rptOwnerCik>
            <rptOwnerName>Cleveland Todd M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>107 W. FRANKLIN ST.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ELKHART</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46515</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2021-07-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>407</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>154022</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents Phantom Stock Units (&quot;PSUs&quot;) granted pursuant to the IES Holdings, Inc. (&quot;IES&quot;) 2006 Equity Incentive Plan as amended and restated through February 2016 (the &quot;Equity Incentive Plan&quot;) upon Mr. Cleveland electing to receive PSUs in lieu of common stock or cash for that portion of his retainer. Each unit converts to one share of IES common stock when either (i) Mr. Cleveland leaves the board of directors for any reason, or (ii) upon a change of control as defined in the Equity Incentive Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mary K. Newman, Attorney-in-Fact</signatureName>
        <signatureDate>2021-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
