Offshore stablecoins face US access deadline under Treasury rules

By July 18, 2028, a stablecoin could still move freely on-chain and yet vanish from the buy menu on an American exchange. Under the Treasury Department’s proposed GENIUS Act rules, a digital asset service provider would no longer be able to offer or sell a payment stablecoin to someone in the United States unless its issuer fits one of the law’s permitted categories.

The proposal does not ban an offshore token from circulating abroad or moving between private wallets. It controls how regulated businesses distribute that token inside the US. For Tether’s USDT, the biggest question is whether an American exchange can keep offering it to customers, even though the token itself would continue to exist and function on-chain, according to the Treasury document.

Treasury expects the broader regime to take effect on Jan. 18, 2027, giving issuers and platforms carrying their tokens 18 more months to prepare for the larger distribution restriction in 2028. The two dates divide implementation into stages. Starting Jan. 18, 2027, companies cannot issue a payment stablecoin in the United States without entering the GENIUS regime. A US service provider carrying a foreign-issued token would also face initial conditions tied to the issuer’s ability to obey lawful orders and the relevant reciprocal arrangements. On July 18, 2028, the wider rule takes hold, and covered providers can only carry tokens from permitted issuers or qualifying foreign issuers.

“Digital asset service provider” covers most businesses through which ordinary users buy and store crypto: exchanges, custodians, companies that transfer digital assets or provide services connected to their issuance. If one of those businesses serves US customers for profit, it may have to decide whether every single stablecoin on its platform has a valid route under GENIUS, the proposal said.

Treasury also gives “offer or sell” a wide meaning. A platform can fall inside the rule by advertising a stablecoin, agreeing to sell it, or telling someone who contacted the company first that it is willing to complete the trade. Helping a customer get around geolocation controls can count as well, the document said.

A centralized exchange already knows which country a customer belongs to, and its app controls which assets a customer can buy. Custodians decide which tokens they will hold, and hosted wallets choose which purchase and swap routes they support. Treasury would use those existing controls to make the businesses closest to the customer check an issuer’s legal status.

Self-custody is outside much of this framework. The proposal excludes people sending stablecoins on their own behalf, direct peer-to-peer transfers, and software that simply helps someone hold their own assets. An American could therefore continue to possess an offshore token or receive one directly even if a regulated exchange could no longer sell it. The friction begins when that person tries to use a covered business to buy, swap, or deposit the token.

Treasury accepts that this approach can make the market more concentrated. Its proposal identifies switching costs and reduced consumer choice among the possible costs, and it rejected a wider temporary safe harbor for smaller foreign stablecoins, according to the document.

Foreign issuers still have a route into the US market under Section 18 of GENIUS. Their home country must operate a stablecoin regime that Treasury considers comparable to the American one. The issuer must then register with the Office of the Comptroller of the Currency and show that it can comply with lawful US orders.

Treasury is currently asking the public whether due diligence should include examining a foreign issuer’s smart contracts and confirming that it can seize, freeze, or burn tokens when legally required, the proposal said. These functions allow an issuer to block funds at a specific address or remove particular tokens from circulation. Reserve reports and redemption policies explain whether a token is financially backed, while smart-contract controls show whether its issuer can carry out a court order.

Tether is the best real-world example because USDT is issued outside the United States but is currently available to US customers through venues including Coinbase and Kraken, subject to each platform’s eligibility rules. Tether holds digital asset and stablecoin issuer licenses in El Salvador and has already demonstrated that it can freeze addresses while working with US authorities, the company has said. It launched USA₮ in January as a federally regulated dollar stablecoin and said USDT was progressing toward GENIUS compliance. It could seek qualifying foreign issuer status for USDT, direct more American use toward USA₮, or pursue both routes.

The three largest relevant dollar tokens approach that deadline from different starting points. USDT brings far more global liquidity than the other two tokens, while USDC and PYUSD approach GENIUS through domestic issuers. Exchanges will have to weigh the value of that liquidity against the legal and technical work required to keep each asset available, according to the Treasury’s proposed rule.

Stablecoins have become a huge part of global crypto and financial markets because they can settle at any hour across several exchanges and blockchains. Treasury’s proposal leaves that technical portability in place while dividing regulated access by jurisdiction. That means a platform could carry one stablecoin for US customers and another for users elsewhere. Liquidity providers may need separate inventories for domestic and offshore venues, while users sending funds from a private wallet to a US exchange may have to convert one dollar token into another first.

The Federal Register gives the public until Oct. 19 to comment. The agency can then revise its definitions and diligence standards before issuing a final rule. The general regime is expected to start on Jan. 18, 2027, and the wider service-provider restriction arrives on July 18, 2028.