GENIUS Act stablecoin rules miss deadline, 2027 clock looms

US regulators missed the GENIUS Act’s July 18, 2026 deadline to finish stablecoin rules, tightening the runway for issuers even though the law’s Jan. 18, 2027 start date still stands, according to The Block’s reporting and the text of the GENIUS Act. For stablecoin companies, the missed date is a calendar problem with legal and operational consequences.

Section 20 sets the effective date at the earlier of 18 months after enactment or 120 days after final implementing rules. The one-year rulemaking deadline slipped; the backstop did not. That leaves regulators and issuers with less time to move from draft requirements to a working federal framework. Unless final rules arrive early enough to activate the 120-day clause, the market is still looking at Jan. 18, 2027.

The unfinished work sits across several agencies. The Office of the Comptroller of the Currency’s proposed rule for federally supervised issuers has not become final, and the related Federal Register notice shows a regime still being built through agency procedure rather than one consolidated handbook. The Treasury Department and the Federal Reserve remain part of that build-out, leaving several terms to be fixed in separate channels.

The Block said other pieces remain open, including an anti-money-laundering proposal with an Aug. 4, 2026 comment deadline and a joint customer-identification proposal with an Aug. 21, 2026 deadline. Those dates leave little room to review comments, revise text and still give issuers a long implementation window before January. Proposed rules can sit for months; compliance teams need final language before they can lock down onboarding, reserve, disclosure and monitoring processes.

The state pathway is exposed, too. Section 4© ties state certification into the broader federal framework, so uncertainty at the federal-agency level can spill into the route that state-qualified issuers expect to use. A delay in final federal instructions can leave nationally supervised and state-certified players building against provisional assumptions rather than settled standards.

Days before the deadline, The Block reported that Federal Reserve Chair Kevin Warsh told lawmakers the central bank was still trying to finish on time. The remark now reads as a warning that agencies knew the schedule was tight heading into the final week.

“We’re racing to put that out by this deadline,”

• Kevin Warsh, Federal Reserve chair

What the miss means

Stablecoin issuers now face a two-track problem: final compliance terms for supervision, state certification and customer identification still appear to be moving on different agency tracks while the statutory clock keeps running. Larger incumbents can keep building against draft rules with in-house legal and policy teams. Smaller entrants have less certainty about the finished rulebook, or how quickly they will have to adapt once it is final.

The arithmetic is tighter now. Jan. 18, 2027 is 120 days after Sept. 20, 2026, so any final rule that slips beyond late September would leave less than the full runway contemplated in Section 20. The law would still stand, but testing, legal review and operational changes would be compressed. It also lands as the market debate widens beyond crypto-native firms: The Block separately reported that U.S. banking groups were warning lawmakers that stablecoins could substitute for deposits at community banks.

The delay lands as stablecoin policy and commercial activity continue elsewhere. The same U.S.-UK digital-asset push cited by The Block showed policymakers still promoting cross-border stablecoin standards, while industry reporting has tracked new distribution plans from large payment companies and issuers. That makes the missed deadline a regulatory milestone: the market has a firmer launch date than final instructions, an imbalance likely to favor firms that can keep spending while Washington finishes the manual.