Exhibit 24

                          SECTION 16 POWER OF ATTORNEY

             With respect to holdings of and transactions in securities issued
by Shift4 Payments, Inc. (the "Company"), the undersigned hereby constitutes and
appoints the officers of the Company listed on Schedule A attached hereto and as
may be amended from time to time, or any of them signing singly, with full power
of substitution and resubstitution, to act as the undersigned's true and lawful
attorney- in-fact to:

1.   execute for and on behalf of the undersigned, Forms 3, 4, and 5 in
     accordance with Section 16 of the Securities Exchange Act of 1934, as
     amended, and the rules thereunder;

2.   do and perform any and all acts for and on behalf of the undersigned which
     may be necessary or desirable to complete and execute any such Form 3, 4,
     or 5, complete and execute any amendment or amendments thereto, and timely
     file such form with the United States Securities and Exchange Commission
     and any stock exchange or similar authority; and

3.   take any other action of any type whatsoever in connection with the
     foregoing which, in the opinion of such attorney-in-fact, may be of benefit
     to, in the best interest of, or legally required by, the undersigned, it
     being understood that the documents executed by such attorney-in-fact on
     behalf of the undersigned pursuant to this Power of Attorney shall be in
     such form and shall contain such terms and conditions as such
     attorney-in-fact may approve in the discretion of such attorney-in-fact.

             The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution and resubstitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-in-facts substitute or
substitutes, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted.

             The undersigned acknowledges that the attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor is any
Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934, as amended.

             This Power of Attorney shall remain in full force and effect until
the undersigned is no longer required to file Forms 3, 4, and 5 with respect to
the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.

             IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 12th day of December, 2022.

                                        /s/ Taylor David Lauber
                                        -----------------------
                                        Taylor David Lauber





                                   Schedule A

     Individuals Appointed as Attorney-in-Fact with Full Power of Substitution
     and Resubstitution


1.   Jared Isaacman            Chief Executive Officer
2.   Nancy Disman              Chief Financial Officer
3.   Jordan Frankel            Secretary, General Counsel and Executive Vice
                               President, Legal, Human Resources and Compliance