Exhibit 16.1

HALL&COMPANY Certified Public Accountants, Inc. TAX, FINANCIAL AND MANAGEMENT CONSULTING SERVICES 111 PACIFICA, SUITE 300 IRVINE, CA 92618 (949) 910-HALL (4255) FAX (949) 910-4256 WWW.HALLCPAS.COM

October 15, 2019

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

RE: Greenbox POS

We have read the statements made by Greenbox POS in Item 4.01 of this Form 8-K regarding the change in auditors. We agree with such statements made regarding our firm. We have no basis to agree or disagree with other statements made in Item 4.01 of this Form 8-K.

Yours truly,

/s/ Hall & Company

Hall & Company CPAs & Consultants, Inc.