<SEC-DOCUMENT>0000842517-24-000204-index.html : 20241121
<SEC-HEADER>0000842517-24-000204.hdr.sgml : 20241121
<ACCEPTANCE-DATETIME>20241121161206
ACCESSION NUMBER:		0000842517-24-000204
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20241121
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20241121
DATE AS OF CHANGE:		20241121

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISABELLA BANK Corp
		CENTRAL INDEX KEY:			0000842517
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		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:		241484490

	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>8-K
<SEQUENCE>1
<FILENAME>isba-20241121.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: isba-20241121.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>isba_2024q4xdivannxex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: isba_2024q4xdivannxex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>isba-20241121.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 3 - file: isba-20241121.xsd

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>isba-20241121_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 4 - file: isba-20241121_lab.xml

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<SEQUENCE>5
<FILENAME>isba-20241121_pre.xml
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<TEXT>
Document 5 - file: isba-20241121_pre.xml

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>logo.jpg
<DESCRIPTION>ISBA LOGO
<TEXT>
Document 6 - file: logo.jpg

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>R1.htm
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<TEXT>
Document 8 - file: R1.htm

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<DOCUMENT>
<TYPE>EXCEL
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<FILENAME>Financial_Report.xlsx
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<TEXT>
Document 9 - file: Financial_Report.xlsx

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<SEQUENCE>10
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<TEXT>
Document 10 - file: Show.js

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<TYPE>XML
<SEQUENCE>11
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<TEXT>
Document 11 - file: report.css

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>FilingSummary.xml
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<TEXT>
Document 13 - file: FilingSummary.html

Document 13 - RAW XML: FilingSummary.xml

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<DOCUMENT>
<TYPE>JSON
<SEQUENCE>15
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>16
<FILENAME>0000842517-24-000204-xbrl.zip
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<TEXT>
Document 16 - file: 0000842517-24-000204-xbrl.zip

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>isba-20241121_htm.xml
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<TEXT>
Document 17 - file: isba-20241121_htm.html

Document 17 - RAW XML: isba-20241121_htm.xml

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