<SEC-DOCUMENT>0000842517-19-000023-index.html : 20190212
<SEC-HEADER>0000842517-19-000023.hdr.sgml : 20190212
<ACCEPTANCE-DATETIME>20190212153930
ACCESSION NUMBER:		0000842517-19-000023
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20190206
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190212
DATE AS OF CHANGE:		20190212

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18415
		FILM NUMBER:		19590491

	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>8-K
<SEQUENCE>1
<FILENAME>isba_8kx2019xmcdonnellserp.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: isba_8kx2019xmcdonnellserp.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>supplementalexecutiveretir.htm
<DESCRIPTION>EXHIBIT 10.1
<TEXT>
Document 2 - file: supplementalexecutiveretir.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>3
<FILENAME>serpparticipationagreement.htm
<DESCRIPTION>EXHIBIT 10.2
<TEXT>
Document 3 - file: serpparticipationagreement.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>4
<FILENAME>stockawardincentiveplan_20.htm
<DESCRIPTION>EXHIBIT 10.3
<TEXT>
Document 4 - file: stockawardincentiveplan_20.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>stockawardincentiveplana01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: stockawardincentiveplana01.jpg

</DOCUMENT>
</SEC-DOCUMENT>