<SEC-DOCUMENT>0000842517-18-000184-index.html : 20181221
<SEC-HEADER>0000842517-18-000184.hdr.sgml : 20181221
<ACCEPTANCE-DATETIME>20181221115555
ACCESSION NUMBER:		0000842517-18-000184
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
REFERENCES 429:			333-181799
FILED AS OF DATE:		20181221
DATE AS OF CHANGE:		20181221
EFFECTIVENESS DATE:		20181221

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-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-228953
		FILM NUMBER:		181248330

	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>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>isba_2018xformxs-8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: isba_2018xformxs-8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5
<SEQUENCE>2
<FILENAME>isba_s8x2018xexhibitx5.htm
<DESCRIPTION>EXHIBIT 5
<TEXT>
Document 2 - file: isba_s8x2018xexhibitx5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>isba_s8x2018xexhibitx231.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: isba_s8x2018xexhibitx231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>fosterswiftlogoa02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: fosterswiftlogoa02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>fosterswiftwebsitea03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: fosterswiftwebsitea03.jpg

</DOCUMENT>
</SEC-DOCUMENT>