POWER OF ATTORNEY

	The undersigned, as a Section 16 reporting person of Square, Inc. (the
"Company"), hereby constitutes and appoints Sydney Schaub, Jason Gao and Laura
Reis, and each of them, as the undersigned's true and lawful attorney-in-fact
to:

        1. complete and execute Forms 3, 4 and 5 and other forms and all
amendments thereto as such attorney-in-fact shall in his or her discretion
determine to be required or advisable pursuant to Section 16 of the Securities
Exchange Act of 1934 (as amended) and the rules and regulations promulgated
thereunder, or any successor laws and regulations, as a consequence of the
undersigned's ownership, acquisition or disposition of securities of the
Company; and

        2. do all acts necessary in order to file such forms with the Securities
and Exchange Commission (the "SEC"), any securities exchange or national
association, the Company and such other person or agency as the
attorneys-in-fact shall deem appropriate.

	The undersigned also hereby constitutes and appoints the responsible attorneys
and paralegals of Wilson Sonsini Goodrich & Rosati, P.C., and each of them, as
the undersigned's true and lawful attorney-in-fact and agent to complete,
execute and file a Form ID, including amendments thereto, on EDGAR or such other
forms as prescribed by the SEC in order for the undersigned to apply for and
obtain EDGAR filing codes.

	The undersigned hereby ratifies and confirms all that said attorneys-in-fact
and agents shall do or cause to be done by virtue hereof.  The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming, nor is the 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 ID, 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 Company and the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 7th day of December, 2016.


Signature: 	/s/  Hillary B. Smith

Print Name:	Hillary B. Smith