<SEC-DOCUMENT>0000842517-19-000038.txt : 20190214
<SEC-HEADER>0000842517-19-000038.hdr.sgml : 20190214
<ACCEPTANCE-DATETIME>20190214181752
ACCESSION NUMBER:		0000842517-19-000038
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190214
DATE AS OF CHANGE:		20190214

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Reetz David J
		CENTRAL INDEX KEY:			0001595618

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18415
		FILM NUMBER:		19609000

	MAIL ADDRESS:	
		STREET 1:		1188 MEADOW DRIVE
		CITY:			MT. PLEASANT
		STATE:			MI
		ZIP:			48858

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISABELLA BANK Corp
		CENTRAL INDEX KEY:			0000842517
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				382830092
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		401 NORTH MAIN STREET
		CITY:			MT PLEASANT
		STATE:			MI
		ZIP:			48858
		BUSINESS PHONE:		9897729471

	MAIL ADDRESS:	
		STREET 1:		401 NORTH MAIN STREET
		CITY:			MT PLEASANT
		STATE:			MI
		ZIP:			48858

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ISABELLA BANK CORP
		DATE OF NAME CHANGE:	20080602

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IBT BANCORP INC /MI/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>5
<SEQUENCE>1
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<DESCRIPTION>FORM 5
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    <footnotes>
        <footnote id="F1">Shares previously held through the ESOP which were distributed and sold on August 29, 2018.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Debra A. Campbell, By Power of Attorney</signatureName>
        <signatureDate>2019-02-14</signatureDate>
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</SEC-DOCUMENT>
