<SEC-DOCUMENT>0001721614-17-000002.txt : 20171103
<SEC-HEADER>0001721614-17-000002.hdr.sgml : 20171103
<ACCEPTANCE-DATETIME>20171103145043
ACCESSION NUMBER:		0001721614-17-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171101
FILED AS OF DATE:		20171103
DATE AS OF CHANGE:		20171103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Tucker Steven B.
		CENTRAL INDEX KEY:			0001721614

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37661
		FILM NUMBER:		171176029

	MAIL ADDRESS:	
		STREET 1:		10448 HARBOURTOWNE DRIVE
		CITY:			NORTHPORT
		STATE:			AL
		ZIP:			35475

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SMARTFINANCIAL INC.
		CENTRAL INDEX KEY:			0001038773
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				621173944
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5401 KINGSTON PIKE
		STREET 2:		SUITE 600
		CITY:			KNOXVILLE
		STATE:			TN
		ZIP:			37919
		BUSINESS PHONE:		866-290-2554

	MAIL ADDRESS:	
		STREET 1:		5401 KINGSTON PIKE
		STREET 2:		SUITE 600
		CITY:			KNOXVILLE
		STATE:			TN
		ZIP:			37919

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORNERSTONE BANCSHARES INC
		DATE OF NAME CHANGE:	19980402

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EAST RIDGE BANCSHARES INC
		DATE OF NAME CHANGE:	19970507
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-11-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001038773</issuerCik>
        <issuerName>SMARTFINANCIAL INC.</issuerName>
        <issuerTradingSymbol>SMBK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001721614</rptOwnerCik>
            <rptOwnerName>Tucker Steven B.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10448 HARBOURTOWNE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NORTHPORT</rptOwnerCity>
            <rptOwnerState>AL</rptOwnerState>
            <rptOwnerZipCode>35475</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-11-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>32087</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>32087</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.76</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-11-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11333</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2010-05-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2020-05-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11333</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11333</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Received in exchange for 37,750 shares of Capstone Bancshares, Inc. common stock in connection with the merger of Capstone Bancshares, Inc. in connection with the merger of Capstone Bancshares, Inc. with and into SmartFinancial, Inc. (the &quot;Merger&quot;). On the effective date of the Merger, the last known purchase price of Capstone Bancshares, Inc.'s common stock was $11.05 per share, and the closing price of SmartFinancial, Inc.'s common stock was $23.26 per share.</footnote>
        <footnote id="F2">Received in exchange for 13,333 options to purchase shares of Capstone Bancshares, Inc. common stock in connection with the Merger.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Elizabeth Clippard, Attorney-in-fact</signatureName>
        <signatureDate>2017-11-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
