    <SEC-DOCUMENT>0001193125-21-107593-index.html : 20210406
    <SEC-HEADER>0001193125-21-107593.hdr.sgml : 20210406
    <ACCEPTANCE-DATETIME>20210406161413
    ACCESSION NUMBER:		0001193125-21-107593
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20210406
    DATE AS OF CHANGE:		20210406

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FISERV INC
    		CENTRAL INDEX KEY:			0000798354
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
    		IRS NUMBER:				391506125
    		STATE OF INCORPORATION:			WI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38962
    		FILM NUMBER:		21809321

    	BUSINESS ADDRESS:
    		STREET 1:		255 FISERV DR
    		STREET 2:		PO BOX 979
    		CITY:			BROOKFIELD
    		STATE:			WI
    		ZIP:			53045
    		BUSINESS PHONE:		4148795000

    	MAIL ADDRESS:
    		STREET 1:		255 FISERV DRIVE
    		CITY:			BROOKFIELD
    		STATE:			WI
    		ZIP:			53045
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>d39336ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d39336ddefa14a.htm

    </DOCUMENT>
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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g39336g07a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g39336g07a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g39336g08a02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g39336g08a02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g39336g09a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g39336g09a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g39336g10a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g39336g10a01.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>