CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Registration Statement No. 333-263850 on Form S-6 of our report dated May 5, 2022, relating to the financial statement of FT 10090, comprising ETF Growth and Income May '22 (ETF Growth and Income Portfolio, May 2022 Series), appearing in the Prospectus, which is a part of such Registration Statement, and to the reference to us under the heading "Experts" in such Prospectus.

/s/ DELOITTE & TOUCHE LLP

Chicago, Illinois

May 5, 2022