Prospectus Certification by Investment Company (Form 497J)

Tidal Trust IV
234 West Florida Street, Suite 700
Milwaukee, WI 53204

September 15, 2026

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission (the "Commission")
Division of Investment Management
100 F Street, N.E.
Washington, DC 20549

To the Commission:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and the regulations thereunder, the Trust on behalf of its series, VegaShares AI Frontier ETF, VegaShares Space & AI ETF, and VegaShares AI & Social Media ETF, hereby certifies that the forms of Prospectus and Statement of Additional Information that would have been filed under Rule 497(b) or (c) would not have differed from that contained in the most recent amendment effective September 11, 2026, and filed electronically as Post-Effective Amendment No. 57 to the Trust's Registration Statement on Form N-1A on September 11, 2026.

If you have any questions or require further information, please contact David Mathews at (262) 240-4657 or [email protected].

Sincerely,

/s/ David Mathews
David Mathews
Senior Counsel II
Tidal Investments LLC, on behalf of Tidal Trust IV