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Independent UK news and guides on tokenised equity, for founders raising capital, investors and the firms that support them. Published by Tokenisation Group Limited, London. Information only, not financial advice.

OCC final GENIUS Act rule sets stablecoin regime from 18 January 2027

Writer: Shawn Jhanji
Shawn Jhanji
7 days ago
3 min read

The OCC final GENIUS Act rule, issued by the US Office of the Comptroller of the Currency (OCC) on 21 October 2026, sets the federal framework for payment stablecoins from 18 January 2027. It covers reserves, redemption and custody. It also covers foreign payment stablecoin issuers, the category a UK sterling stablecoin firm would fall into.


Monopoly-inspired board game illustration featuring the US OCC, Capitol building, stablecoin tokens and a top-hatted banker holding the GENIUS Act, with game spaces for reserves, redemption, custody and foreign issuers. Highlights the new US stablecoin regime starting 18 January 2027, with a hidden TokenisingStartups rocket motif.

Which payment stablecoin issuers the rule covers

The GENIUS Act is the US law that created a federal framework for payment stablecoins, tokens designed to hold a stable value against a currency. The OCC applies it to national banks and their subsidiaries, federal savings associations, federal branches, foreign payment stablecoin issuers and certain non-bank and state-qualified issuers, according to the OCC's final rule text.


The OCC said on 21 October 2026 that it received hundreds of comments from crypto companies, community bankers, trade groups and academics. It left out anti-money laundering, Bank Secrecy Act and sanctions rules, which it will handle in a separate rulemaking with the US Treasury Department.


On reserves, the rule gives issuers more flexibility in how they manage reserve assets while keeping core liquidity, diversification and concentration requirements. Redemption is tied to a two business day period, and reserve custodians must be eligible financial institutions.


GENIUS Act effective date: 89 days from the final rule

The OCC issued its proposal on 2 March 2026 and accepted comments until 1 July 2026, a window of 121 days. The final rule followed 233 days after the proposal, and it takes effect on 18 January 2027, 89 days after publication.


Eighty-nine days is the working window for an issuer that wants to be ready on the first day. The OCC said it will announce separately when it starts accepting applications and waiver requests, so the date on which a firm can apply is not yet known.


What foreign payment stablecoin issuers can read from it

The rule text defines a foreign payment stablecoin issuer as one organised under the laws of, or domiciled in, a foreign country and not itself a permitted payment stablecoin issuer. The OCC announcement adds no further detail on what that group must do, so the first answer a UK firm needs is not in the document.


The UK stablecoin regime is being built on a different clock. HM Treasury said on 21 April 2026 that stablecoins used for payments will be regulated under a planned stablecoin issuance activity. The Financial Conduct Authority (FCA) cryptoasset framework, which includes stablecoins, is due to take effect in October 2027, according to DL News on 22 April 2026, roughly nine months after the US date.


That sequence puts US rules first for any sterling issuer that wants US customers. Founders already building in this area, such as the UK stablecoin payments start-up covered in Noah's $38m seed round, should ask US counsel whether the business would count as a foreign payment stablecoin issuer, because the announcement does not settle it.


The counterpoint is scale. DL News reported that pound-backed stablecoins total about $30 million, according to DefiLlama, while dollar tokens dominate the UK market. For now the rule may reach UK firms mainly as distributors of US-issued tokens, not as issuers. The UK cryptoasset timetable and the FCA perimeter guidance consultation set out where UK firms stand on that side.


The next markers are the OCC notice on when applications open and the separate Treasury rulemaking on anti-money laundering and sanctions.


This is general information, not legal, tax or investment advice.


Key takeaways

  • The OCC issued its final GENIUS Act rule on 21 October 2026, and it takes effect on 18 January 2027.

  • The rule covers permitted payment stablecoin issuers, foreign payment stablecoin issuers and certain custody activities, with anti-money laundering and sanctions rules to follow in a separate rulemaking.

  • The OCC proposal of 2 March 2026 took 233 days to become a final rule, and issuers have 89 days from publication to the effective date.

  • The OCC announcement gives no detail on what foreign issuers must do, so UK sterling stablecoin firms cannot yet read their position from it.

  • The FCA cryptoasset framework is due in October 2027, about nine months after the US rule starts.


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