<SEC-DOCUMENT>0001562463-16-000066.txt : 20160120
<SEC-HEADER>0001562463-16-000066.hdr.sgml : 20160120
<ACCEPTANCE-DATETIME>20160120165814
ACCESSION NUMBER:		0001562463-16-000066
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160118
FILED AS OF DATE:		20160120
DATE AS OF CHANGE:		20160120

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			First Internet Bancorp
		CENTRAL INDEX KEY:			0001562463
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				203489991
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11201 USA PARKWAY
		CITY:			FISHERS
		STATE:			IN
		ZIP:			46037
		BUSINESS PHONE:		317-532-7900

	MAIL ADDRESS:	
		STREET 1:		11201 USA PARKWAY
		CITY:			FISHERS
		STATE:			IN
		ZIP:			46037

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WOJTOWICZ JEAN L
		CENTRAL INDEX KEY:			0001180886

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35750
		FILM NUMBER:		161351611

	MAIL ADDRESS:	
		STREET 1:		C/O VECTREN CORP
		STREET 2:		20 NW FOURTH STREET
		CITY:			EVANVILLE
		STATE:			IN
		ZIP:			47711
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_145332708323301.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-01-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001562463</issuerCik>
        <issuerName>First Internet Bancorp</issuerName>
        <issuerTradingSymbol>INBK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001180886</rptOwnerCik>
            <rptOwnerName>WOJTOWICZ JEAN L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11201 USA PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FISHERS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46037</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>
            </securityTitle>
            <transactionDate>
                <value>2016-01-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>872</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18749</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock award scheduled to vest as follows: 73 shares were fully vested on the date of grant, 72 shares will vest on the fifteenth day of March, June, September, and December of 2016, and 73 shares will vest on the fifteenth day of February, April, May, July, August, October, and November of 2016.</footnote>
        <footnote id="F2">Includes 191 shares acquired between January 21, 2015 and October 20, 2015 pursuant to the First Internet Bancorp Dividend Reinvestment and Stock Purchase Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kenneth J. Lovik, Attorney-in-Fact for Jean L. Wojtowicz (power of attorney previously filed)</signatureName>
        <signatureDate>2016-01-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
