    <SEC-DOCUMENT>0001303942-20-000027-index.html : 20200421
    <SEC-HEADER>0001303942-20-000027.hdr.sgml : 20200421
    <ACCEPTANCE-DATETIME>20200421081300
    ACCESSION NUMBER:		0001303942-20-000027
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		26
    CONFORMED PERIOD OF REPORT:	20200421
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20200421
    DATE AS OF CHANGE:		20200421

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BankFinancial CORP
    		CENTRAL INDEX KEY:			0001303942
    		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
    		IRS NUMBER:				000000000
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-51331
    		FILM NUMBER:		20804019

    	BUSINESS ADDRESS:
    		STREET 1:		15W060 NORTH FRONTAGE ROAD
    		CITY:			BURR RIDGE
    		STATE:			IL
    		ZIP:			60527
    		BUSINESS PHONE:		(800) 894-6900

    	MAIL ADDRESS:
    		STREET 1:		15W060 NORTH FRONTAGE ROAD
    		CITY:			BURR RIDGE
    		STATE:			IL
    		ZIP:			60527
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>bfin2020038kresults.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: bfin2020038kresults.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>bfin-20200331ex991earnings.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: bfin-20200331ex991earnings.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>bfin-20200331ex992suppleme.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: bfin-20200331ex992suppleme.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>4
    <FILENAME>a2020corporateprofile042.htm
    <DESCRIPTION>EXHIBIT 99.3
    <TEXT>
    Document 4 - file: a2020corporateprofile042.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>a2020corporateprofile042001.jpg
    <TEXT>
    Document 5 - file: a2020corporateprofile042001.jpg

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    <SEQUENCE>6
    <FILENAME>a2020corporateprofile042002.jpg
    <TEXT>
    Document 6 - file: a2020corporateprofile042002.jpg

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    <SEQUENCE>7
    <FILENAME>a2020corporateprofile042003.jpg
    <TEXT>
    Document 7 - file: a2020corporateprofile042003.jpg

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    <SEQUENCE>8
    <FILENAME>a2020corporateprofile042004.jpg
    <TEXT>
    Document 8 - file: a2020corporateprofile042004.jpg

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    <SEQUENCE>9
    <FILENAME>a2020corporateprofile042005.jpg
    <TEXT>
    Document 9 - file: a2020corporateprofile042005.jpg

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    <SEQUENCE>10
    <FILENAME>a2020corporateprofile042006.jpg
    <TEXT>
    Document 10 - file: a2020corporateprofile042006.jpg

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    <SEQUENCE>11
    <FILENAME>a2020corporateprofile042007.jpg
    <TEXT>
    Document 11 - file: a2020corporateprofile042007.jpg

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    <DOCUMENT>
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    <SEQUENCE>12
    <FILENAME>a2020corporateprofile042008.jpg
    <TEXT>
    Document 12 - file: a2020corporateprofile042008.jpg

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    <SEQUENCE>13
    <FILENAME>a2020corporateprofile042009.jpg
    <TEXT>
    Document 13 - file: a2020corporateprofile042009.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>a2020corporateprofile042010.jpg
    <TEXT>
    Document 14 - file: a2020corporateprofile042010.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>a2020corporateprofile042011.jpg
    <TEXT>
    Document 15 - file: a2020corporateprofile042011.jpg

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    <DOCUMENT>
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    <SEQUENCE>16
    <FILENAME>a2020corporateprofile042012.jpg
    <TEXT>
    Document 16 - file: a2020corporateprofile042012.jpg

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    <SEQUENCE>17
    <FILENAME>a2020corporateprofile042013.jpg
    <TEXT>
    Document 17 - file: a2020corporateprofile042013.jpg

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    <DOCUMENT>
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    <SEQUENCE>18
    <FILENAME>a2020corporateprofile042014.jpg
    <TEXT>
    Document 18 - file: a2020corporateprofile042014.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>a2020corporateprofile042015.jpg
    <TEXT>
    Document 19 - file: a2020corporateprofile042015.jpg

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    <DOCUMENT>
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    <SEQUENCE>20
    <FILENAME>a2020corporateprofile042016.jpg
    <TEXT>
    Document 20 - file: a2020corporateprofile042016.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>a2020corporateprofile042017.jpg
    <TEXT>
    Document 21 - file: a2020corporateprofile042017.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>a2020corporateprofile042018.jpg
    <TEXT>
    Document 22 - file: a2020corporateprofile042018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>a2020corporateprofile042019.jpg
    <TEXT>
    Document 23 - file: a2020corporateprofile042019.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>a2020corporateprofile042020.jpg
    <TEXT>
    Document 24 - file: a2020corporateprofile042020.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>a2020corporateprofile042021.jpg
    <TEXT>
    Document 25 - file: a2020corporateprofile042021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>graphica02a37.jpg
    <TEXT>
    Document 26 - file: graphica02a37.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>