<SEC-DOCUMENT>0000892712-22-000078-index.html : 20220304
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<ACCEPTANCE-DATETIME>20220304161420
ACCESSION NUMBER:		0000892712-22-000078
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20220302
ITEM INFORMATION:		Unregistered Sales of Equity Securities
ITEM INFORMATION:		Material Modifications to Rights of Security Holders
ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20220304
DATE AS OF CHANGE:		20220304

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST BUSINESS FINANCIAL SERVICES, INC.
		CENTRAL INDEX KEY:			0001521951
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				391576570
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34095
		FILM NUMBER:		22714221

	BUSINESS ADDRESS:	
		STREET 1:		401 CHARMANY DRIVE
		CITY:			MADISON
		STATE:			WI
		ZIP:			53719
		BUSINESS PHONE:		608-238-8008

	MAIL ADDRESS:	
		STREET 1:		401 CHARMANY DRIVE
		STREET 2:		PO BOX 44961
		CITY:			MADISON
		STATE:			WI
		ZIP:			53744

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	First Business Financial Services, Inc.
		DATE OF NAME CHANGE:	20110527
</SEC-HEADER>
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Document 1 - file: fbiz-20220302.htm

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<FILENAME>exhibit31.htm
<DESCRIPTION>AMENDMENT TO ARTICLES DATED MARCH 2, 2022
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Document 2 - file: exhibit31.htm

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<SEQUENCE>3
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<DESCRIPTION>FORM OF 3.50% FIXED-TO-FLOATING RATE SUBORDINATED NOTE
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Document 3 - file: exhibit41.htm

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