Stablecoin Rules in 2026: The GENIUS Act Explained
The GENIUS Act gave the US its first federal stablecoin rulebook in 2025. Here is what it requires from issuers, where the SEC stands, and how it compares with the EU's MiCA.
Stablecoins moved from the fringe of crypto to the center of financial policy in under two years. Tokens pegged to the US dollar now settle huge volumes of transfers, sit underneath most crypto trading pairs, and increasingly turn up in cross-border payments. As of mid-2026 the total stablecoin supply has crossed roughly $320 billion, according to DefiLlama, and Washington has answered with the first comprehensive federal rulebook the sector has ever had.
This explainer breaks down what stablecoin rules now require in the United States, how the new law works, where the SEC fits in, and how the American approach lines up against the European Union’s framework.
What counts as a stablecoin
A stablecoin is a crypto token built to hold a steady value, almost always one US dollar. The dominant versions are backed by reserves: for every token in circulation, the issuer says it holds a dollar or a dollar-equivalent asset such as a Treasury bill. Tether’s USDT and Circle’s USDC lead the market, together accounting for more than 80 percent of outstanding supply. USDT alone carries a market value near $185 billion, with USDC around $78 billion, per CoinGecko data.
Not every dollar token works the same way. Regulators now draw a sharp line between payment stablecoins, which are fully backed and redeemable on demand, and algorithmic designs that try to hold a peg through code and trading incentives rather than hard reserves. The collapse of one large algorithmic token in 2022 erased tens of billions of dollars in value and pushed that distinction to the front of the policy debate.
Why the rules arrived now
For years, stablecoin issuers operated under a patchwork of state money transmitter licenses, with no single federal standard for what backed the tokens or how reserves were disclosed. That gap drew repeated warnings from the Treasury, the Federal Reserve, and consumer groups, who worried that a run on a large stablecoin could spill into short-term funding markets.
Two forces finally broke the logjam. First, the market grew too big to ignore; a sector backed largely by US Treasury bills became a real buyer of government debt. Second, the political mood shifted toward writing clear rules rather than relying on case-by-case enforcement. The result was the GENIUS Act, signed into law on July 18, 2025.
The GENIUS Act in plain English
The Guiding and Establishing National Innovation for U.S. Stablecoins Act, known as the GENIUS Act, is the first federal law to define a payment stablecoin and license the companies that issue one. The full text is available through Congress.gov.
At its core, the law creates a new category: the permitted payment stablecoin issuer. Only approved issuers may offer a payment stablecoin to US customers, and the statute spells out exactly what they can and cannot do, namely create and redeem tokens, manage reserve assets, and provide custody. Anything outside that list is off the table.
The law does not switch on overnight. Its provisions take effect on the earlier of 18 months after enactment or 120 days after the primary federal regulators finish their rules, which puts the practical compliance date in late 2026 or 2027. Agencies spent the first half of 2026 turning the statute into detailed regulations, the process covered below.
Reserves, audits, and the no-yield rule
The heart of the GENIUS Act is a backing requirement. Every permitted issuer must hold at least one dollar of safe reserves for each dollar of stablecoin outstanding, and those reserves are limited to a short list of low-risk assets.
- Cash and central bank reserves
- Deposits at insured banks and credit unions
- Short-dated US Treasury bills
- Repurchase and reverse repurchase agreements backed by Treasuries
- Government money market funds
Issuers may not rehypothecate or reuse those reserves except in narrow cases such as meeting redemptions, and the assets must sit in segregated, bankruptcy-remote accounts so token holders come first if an issuer fails. Transparency rules are just as strict: each issuer must publish a monthly breakdown of its reserves, reviewed by a registered public accounting firm, with the CEO and CFO personally certifying the figures. Issuers with more than $50 billion in tokens outstanding face an extra step, full annual financial statements audited under Public Company Accounting Oversight Board standards.
One rule reshapes the business model directly: issuers cannot pay interest or yield to people who hold their stablecoins. Lawmakers wanted to keep payment tokens distinct from bank deposits and investment products, a choice the EU made as well.
Who regulates whom: the $10 billion line
The GENIUS Act splits oversight between Washington and the states using a size threshold. Issuers with up to $10 billion in tokens outstanding may choose state supervision, provided their state regime is certified as substantially similar to the federal one. Cross that mark and the issuer moves to a primary federal regulator: the Office of the Comptroller of the Currency for most nonbanks, or the Federal Reserve, FDIC, or National Credit Union Administration depending on the charter. A state-regulated issuer must notify the OCC within five days of passing the threshold.
The agencies have moved quickly. The OCC published proposed rules in early 2026 (see OCC Bulletin 2026-3), and the Treasury issued a separate proposal on state oversight. In April 2026, the Treasury’s Financial Crimes Enforcement Network and Office of Foreign Assets Control released a joint proposal setting anti-money-laundering and sanctions duties for issuers; the Treasury announcement opened a comment window that ran into June 2026, with the final rules due to take effect about a year after publication. The full proposal sits in the Federal Register.
Where the SEC fits in
The GENIUS Act is led by banking and Treasury agencies, but the Securities and Exchange Commission settled a question that hung over the industry for years: are stablecoins securities? In an April 4, 2025 staff statement, the SEC’s Division of Corporation Finance said that covered stablecoins, meaning fully reserved tokens redeemable one for one and marketed only for payments, are not securities under the Securities Act of 1933 or the Securities Exchange Act of 1934. The full SEC statement lays out the conditions.
Those conditions track the GENIUS Act closely: no yield, no governance rights, full backing by cash or low-risk liquid assets, and redemption on demand. A token that pays holders a return, by contrast, risks landing back inside securities law. Not everyone at the agency agreed; Commissioner Caroline Crenshaw published a dissent arguing the staff understated the risks in the reserve model. For now, the practical message to issuers is simple: keep the product plain and the SEC stays out of the way.
US rules versus the EU’s MiCA
The United States was not first. The European Union’s Markets in Crypto-Assets framework, known as MiCA, brought stablecoins under supervision well before the GENIUS Act. MiCA treats single-currency tokens as e-money tokens and basket-pegged tokens as asset-referenced tokens, and it has applied to stablecoins since June 30, 2024, according to the European Securities and Markets Authority. The two regimes rhyme on the essentials and differ on the details.
| Feature | United States (GENIUS Act) | European Union (MiCA) |
|---|---|---|
| Core token type | Payment stablecoin | E-money token, asset-referenced token |
| Backing | One dollar of cash and Treasuries per token | One for one, plus reserve and own-funds rules |
| Issuer status | Permitted payment stablecoin issuer | Authorized credit or e-money institution |
| Interest to holders | Prohibited | Prohibited |
| Lead supervisor | OCC, Federal Reserve, FDIC, or state regulator | National regulators, EBA for significant tokens |
| In force | Phasing in through 2026 and 2027 | Since June 30, 2024 |
One practical effect is already visible abroad: USDC secured EU authorization and trades freely across the bloc, while USDT has not cleared the MiCA bar, which led several European venues to limit it. The American rules could create a similar sorting at home, between issuers that meet the federal standard and those that do not.
What it means for issuers and holders
For issuers, the rulebook rewards the compliant and squeezes everyone else. Circle, which already publishes monthly attestations, has signaled it will pursue the federal path. Tether, the largest issuer by far, must align its reserve mix, audits, and anti-money-laundering controls with the new regime to keep full access to the US market. Banks now have a clear lane to issue stablecoins too, a change spelled out in parallel rules from the FDIC, and that is likely to pull more traditional finance into the space.
For ordinary holders and traders, the changes are mostly reassuring and slightly limiting. Reassuring, because a regulated payment stablecoin should be fully backed, transparently audited, and redeemable at par. Limiting, because the no-yield rule means a compliant stablecoin will not pay you to hold it; any return has to come from lending or staking the token elsewhere, which carries its own risk. Traders should also expect some tokens to be delisted or geofenced if their issuers do not register.
The road ahead
The statute is on the books, but the fine print is still being written. Through 2026 the OCC, Treasury, FDIC, and Federal Reserve are finalizing the rules that decide how reserves are examined, how state regimes get certified, and how foreign issuers gain or lose access. The Treasury has also asked the public to weigh in on broader implementation questions, as set out in its call for comment, and that feedback will shape the final text.
A few open questions remain. How will regulators treat large foreign issuers that serve US users from abroad? Will the no-yield rule push demand toward tokenized money market funds that can pay a return? And how closely will Washington and Brussels align, so that a stablecoin compliant in one market can operate in the other? The answers will decide whether stablecoins become boring, regulated plumbing or stay a fast-moving corner of crypto. Either way, the era of unregulated dollar tokens in the United States is drawing to a close.
By the HOGE Wire editorial desk, covering crypto policy and markets.