Prospectus Certification by Investment Company (Form 497J)

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

September 28, 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, DailyDelta Nasdaq 100^® Call Options Strategy ETF, DailyDelta Nasdaq 100^® Put Options Strategy ETF, DailyDelta SP500^® Call Options Strategy ETF, DailyDelta SP500^® Put Options Strategy ETF, DailyDelta R2000 Call Options Strategy ETF, DailyDelta R2000 Put Options Strategy ETF, DailyDelta Bitcoin Call Options Strategy ETF and DailyDelta Bitcoin Put Options Strategy 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 24, 2026, and filed electronically as Post-Effective Amendment No. 64 to the Trust's Registration Statement on Form N-1A on September 24, 2026.

If you have any questions or require further information, please contact Michael Pellegrino at (262) 318-8442 or [email protected].

Sincerely,

/s/ Michael Pellegrino

Michael Pellegrino
General Counsel
Tidal Investments LLC, on behalf of Tidal Trust IV