EXHIBIT 8
 
BALLARD SPAHR ANDREWS & INGERSOLL
    1735 MARKET STREET, 51ST FLOOR
      PHILADELPHIA, PA 19103
                                             
                                          April 16, 1997     
 
BHC Financial, Inc.
One Commerce Square
2005 South Market Street
Philadelphia, PA 19103-3212
                  
               Re: Fiserv, Inc.     
 
Gentlemen:
   
  We understand that a Registration Statement on Form S-4, File No. 333-23349
(the "Registration Statement"), as amended, has been filed by Fiserv, Inc.
("Fiserv"), a Delaware corporation, with the Securities and Exchange
Commission in connection with the registration under the Securities Act of
1933, as amended, of shares of its Common Stock, $.01 par value ("Fiserv
Common Stock"), to be issued in connection with the transactions contemplated
by the Agreement and Plan of Merger (the "Merger Agreement") dated as of March
2, 1997 among Fiserv, Fiserv Delaware Sub, Inc., a Delaware corporation and a
wholly-owned subsidiary of Fiserv, and BHC Financial, Inc. ("BHC"), a Delaware
corporation. The Merger Agreement is described therein and filed as an Exhibit
to the Proxy Statement/Prospectus forming a part of the Registration
Statement.     
 
  We hereby confirm that the discussion set forth under the captions
"Summary--The Merger--Federal Income Tax Consequences" and "The Merger--The
Merger Agreement--Federal Income Tax Consequences of the Merger" in the Proxy
Statement/Prospectus provides a summary of the material federal income tax
consequences relevant to the BHC stockholders receiving Fiserv Common Stock
pursuant to the Merger Agreement.
 
  We hereby consent to the filing of this opinion as Exhibit 8 to the
Registration Statement and to the use of our name in the Registration
Statement and in the Proxy Statement/Prospectus included therein. In giving
such consent, we do not thereby admit that we are in the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended, or the rules and regulations of the Securities and Exchange
Commission promulgated thereunder.
 
                                          Very truly yours,
                                             
                                          Ballard Spahr Andrews & Ingersoll