A store owner who hears that Washington is writing stablecoin rules may well start with the wrong question: "Will I need a licence to accept them?" Based on the law as passed, almost certainly not. The GENIUS Act is aimed at the companies that issue stablecoins and the companies that sit between those coins and the public. A shop taking payment for its own goods is neither.
The question worth asking is a different one. The Act decides which stablecoins those intermediaries may offer to people in the United States, and when. Your checkout runs through one of those intermediaries. So the law does not regulate you, but it will shape the list of coins you can accept, and the rules that settle that list are being written now.
What the Act regulates, and who it leaves alone
The GENIUS Act became law on 18 July 2025. It does two main things.
It says who may issue a payment stablecoin in the US. Only a "permitted payment stablecoin issuer" may: a subsidiary of an insured bank approved to issue, a federally qualified issuer, or a state-qualified one. State regimes are open only to issuers with under $10 billion outstanding. Permitted issuers must hold reserves of at least one to one in cash, insured deposits, short Treasury bills and similar assets, publish the composition of those reserves every month, have it examined by a registered public accounting firm, and must not pay holders "any form of interest or yield".
It says what intermediaries may offer. The law calls them digital asset service providers: businesses that, for compensation or profit, exchange digital assets for money or for other digital assets, transfer them to third parties, hold them in custody, or take part in financial services related to issuing them. Exchanges, custodians, wallet providers that hold keys for you and crypto payment processors will typically fit that description.
Merchants do not appear in the definition, or anywhere else in the definitions section. A store that takes USDC for a pair of boots, through a processor that converts it, is not exchanging or transferring digital assets for others as a business. The processor is. The exchange behind the conversion is. The line becomes less clear if you start running your own on-chain treasury: paying suppliers in stablecoins, converting for other businesses, holding coins for customers. If your plans go that far, that is a question for a lawyer, not for a blog post.
The two dates that matter
The Act takes effect on the earlier of two dates: 18 months after enactment, or 120 days after the federal regulators issue final implementing rules. Treasury's August 2026 proposal says the effective date is expected to be 18 January 2027.
From the effective date, issuing a payment stablecoin in the US without being a permitted issuer becomes unlawful. From the same day, a service provider may not offer, sell or "otherwise make available" in the US a stablecoin from a foreign issuer unless that issuer has the technical ability to comply with, and will comply with, US lawful orders. The Act defines a lawful order as one that requires an issuer to seize, freeze, burn or block the transfer of its coins.
From 18 July 2028, three years after enactment, the wider rule applies. A service provider may not offer or sell a payment stablecoin to a person in the United States unless it was issued by a permitted issuer, or by a foreign issuer from a country whose regime Treasury has found comparable and that is registered with the OCC. Knowingly taking part in unlawful issuance carries fines of up to $1 million per violation and up to five years in prison.
So January 2027 is when issuers need to be inside the system. July 2028 is when the providers your customers pay through must stop offering the coins that are not.
What Treasury's August 2026 proposal adds
On 17 August 2026 Treasury published a proposed rule on section 3 of the Act, the part about issuing, offering and selling. It was printed in the Federal Register on 18 August, and comments close on 19 October 2026. It sits alongside earlier proposals from the OCC in February, on how the issuers it supervises are licensed and run, and from FinCEN and OFAC in April, on issuers' anti-money-laundering and sanctions programmes.
For a merchant, three parts of the August proposal are worth knowing.
"In the United States" is about where the customer is. An individual counts as located in the US if physically present there, unless they are a non-resident only passing through. For a business it is where it is organised or has its principal place of business. A European store selling to American customers therefore sits inside the rule's reach through its provider, even though the store itself is outside it.
"Offer" is read broadly. The proposal's examples include advertising a stablecoin as available to people in the US and even replying to an unsolicited enquiry from someone in the US by saying you are willing to sell. Providers will take this seriously, and conservative supported-coin lists are the likely result.
Merchant acceptance is on Treasury's radar. When the proposal describes activity that creates demand in the US for a foreign-issued stablecoin, it lists "merchant-enablement activity in the United States" and U.S.-facing wallet and platform integrations. It then asks commenters whether "facilitating U.S. merchant acceptance" should count as directed selling. That question is about issuers and providers, not shops, but it tells you where Treasury thinks the pressure point is: the checkout button.
None of this is final. The proposal asks 87 questions, including whether to grant temporary safe harbours after July 2028, and the answers could move.
What changes for your choice of coin and provider
The practical effect lands on the coin list, not on your business licence. Today a crypto payment processor may accept a long list of stablecoins across many chains. By July 2028, for customers in the US, that list has to shrink to coins from permitted issuers and from foreign issuers in regimes Treasury has approved. Coins that do not qualify will be dropped for US customers, and a store that built its checkout, pricing or treasury around one of them will have to change.
Two consequences are easy to miss.
A regulated stablecoin can be frozen. Permitted issuers must be able to block, freeze and reject transactions that break the law, and foreign issuers must be able to act on US lawful orders. That is part of what makes a coin acceptable under the Act. It also means a payment you received is not beyond reach the way cash in a till is. If you hold stablecoins rather than converting them, your provider's and your issuer's freeze policies are part of your risk.
Holding a regulated stablecoin earns nothing from the issuer. The ban on interest and yield applies to issuers. If a coin was attractive to your finance team because it paid a return, check where that return actually comes from once the Act is in force.
Our position: treat the coin as configuration, not as architecture. Whatever you accept today, build so that adding or dropping a coin or a chain is a settings change and a test run, not a rewrite. Stores that hard-code one contract address into pricing, refunds and accounting are the ones that will pay for 2028.
What to ask your payment provider
Before you build on one coin, get written answers to these:
- Which issuer stands behind each coin you support, and what is its status under the GENIUS Act? Permitted issuer, application pending, or foreign issuer relying on a comparability finding from Treasury.
- Which of your entities is the digital asset service provider for my payments, and where is it licensed? You want to know who carries the obligation, not only which brand is on the invoice.
- What happens to a coin that does not qualify by 18 July 2028? How much notice you will get, whether it is removed for US customers only or everywhere, and what happens to any balance you hold in it.
- How do you decide whether a customer is located in the US? This matters most if you sell across borders.
- What is your freeze and hold policy? Who can freeze funds on their way to you or in your balance, and how you would be told.
- If you hold coins for me, how are they held? The Act gives customers priority over the provider's other creditors for stablecoins held on their behalf. Ask whether yours are segregated and how that is documented.
If your provider cannot answer the first question clearly, that is the answer. Keep your volume on it low until it can.
What to watch between now and 2028
Final rules. Comments on Treasury's proposal close on 19 October 2026. When the regulators publish final rules, the 120-day clock starts, and the effective date can come earlier than 18 January 2027.
Comparability decisions. Foreign-issued coins can stay available to US customers after July 2028 only if Treasury finds their home regime comparable and the issuer registers with the OCC. Until a coin's home regime has that finding, treat its US future as uncertain.
Your provider's coin list. Watch for supported-coin changes and restrictions by customer location. They will be the first sign of the rules reaching your checkout.
The store that comes through this well is the one that accepts a small number of coins from issuers with a clear path under the Act, settles most of them into its own currency, and can switch a coin off in an afternoon. That is the design we would build towards in our blockchain e-commerce and blockchain payment integration work, whichever coin a client starts with.
If you would rather work through your coin list and provider contract against the dates above, talk to us.
Dates and rules checked against Public Law 119-27, 12 U.S.C. 5901–5903, Treasury's August 2026 proposed rule and the Treasury and OCC announcements in September 2026. This is a summary for planning, not legal advice.
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