<SEC-DOCUMENT>0000842517-20-000155-index.html : 20201104
<SEC-HEADER>0000842517-20-000155.hdr.sgml : 20201104
<ACCEPTANCE-DATETIME>20201104171511
ACCESSION NUMBER:		0000842517-20-000155
CONFORMED SUBMISSION TYPE:	S-3D
PUBLIC DOCUMENT COUNT:		13
REFERENCES 429:			333-226638
FILED AS OF DATE:		20201104
DATE AS OF CHANGE:		20201104
EFFECTIVENESS DATE:		20201104

FILER:

	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

	FILING VALUES:
		FORM TYPE:		S-3D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-249855
		FILM NUMBER:		201287584

	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
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<FILENAME>isba2020forms-3d.htm
<DESCRIPTION>S-3D
<TEXT>
Document 1 - file: isba2020forms-3d.htm

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<FILENAME>isba2020s3dex5.htm
<DESCRIPTION>EX-5
<TEXT>
Document 2 - file: isba2020s3dex5.htm

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<SEQUENCE>3
<FILENAME>isba2020s3dex101.htm
<DESCRIPTION>EX-10.1
<TEXT>
Document 3 - file: isba2020s3dex101.htm

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<SEQUENCE>4
<FILENAME>isba2020s3dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: isba2020s3dex231.htm

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<DESCRIPTION>EX-99.1
<TEXT>
Document 5 - file: isba2020s3dex991.htm

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<DESCRIPTION>EX-99.2
<TEXT>
Document 6 - file: isba2020s3dex992.htm

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<FILENAME>isba2020s3dex993.htm
<DESCRIPTION>EX-99.3
<TEXT>
Document 7 - file: isba2020s3dex993.htm

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<FILENAME>isba2020s3dex994.htm
<DESCRIPTION>EX-99.4
<TEXT>
Document 8 - file: isba2020s3dex994.htm

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Document 9 - file: fosterswiftlogoa011.jpg

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<DESCRIPTION>GRAPHIC
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Document 10 - file: fosterswiftwebsitea021.jpg

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<DESCRIPTION>GRAPHIC
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Document 11 - file: isbalogoa111a.jpg

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<FILENAME>isbalogoa112a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: isbalogoa112a.jpg

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<FILENAME>isbalogoa113a.jpg
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Document 13 - file: isbalogoa113a.jpg

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