On September 24, the Federal Reserve proposed the rules that will actually govern how a payment stablecoin issuer operates under the GENIUS Act — the federal stablecoin law that takes effect January 18, 2027, or 120 days after final implementing rules, whichever comes first. The law itself said issuers need to hold reserves and be capable of redeeming stablecoins at par. This proposal is where "capable of" turns into specific numbers.

The headline number is a tiered capital charge: 2% of an issuer's first $20 billion in stablecoins outstanding, 1.5% of the next $30 billion, and 1% of anything above $50 billion, on top of separate charges tied to credit and operational risk. Read that closely and the structure is regressive by design — the marginal capital requirement gets lighter as an issuer gets bigger. For a company the size of Circle or Tether, that's a meaningful economic difference between the proposal that shipped and one that charged a flat percentage across the board.

What happens if the reserve math doesn't add up

The redemption mechanics are the part with real teeth. Issuers must process redemptions within two business days — fast enough to matter in a stress scenario, but not instant, which is itself a signal that regulators don't expect stablecoins to behave like bank deposits with same-day ATM withdrawals. If an issuer's reserves fall below full backing, it has to notify the Fed immediately and do one of two things: restore reserves through an approved remediation plan, or liquidate and redeem the outstanding stablecoins. There's no third option where a shortfall just sits there.

Issuers also have to publish monthly reports on outstanding stablecoins and reserve composition, and those reports need sign-off from a registered public accountant plus certification from the issuer's own CEO and CFO. That's a meaningfully higher bar than the voluntary attestations most stablecoin issuers currently publish — it puts named executives on the hook the same way Sarbanes-Oxley put corporate officers on the hook for financial statements.

A separate track for banks

Alongside the capital and redemption rules, the Fed published a second, related proposal covering how Fed-supervised banks apply for approval to issue payment stablecoins through subsidiaries. That matters because it's a different regulatory path than the one used by crypto-native issuers seeking OCC trust charters — ChainBrief covered the OCC's own charter track for firms like Circle and Crypto.com separately. The GENIUS Act framework is shaping up to have at least two distinct doors into regulated stablecoin issuance, not one.

Why this lands differently than the CLARITY Act fight

Where the CLARITY Act's Senate cloture vote turned into a monthslong political standoff over market structure and jurisdiction, this is the Fed doing the unglamorous work of turning an already-passed law into an operating manual. There's a 60-day public comment period from Federal Register publication before anything is final, and the industry will almost certainly push back on the capital tiers and the two-day redemption window. But barring a major rewrite, this is close to the actual shape of U.S. stablecoin regulation for the next several years — arguably more consequential for how stablecoins function day to day than anything still stuck in the Senate.

Why it matters if you actually hold a stablecoin

Most people who hold USDC, USDT, or a bank-issued stablecoin never read a Fed proposal, but the practical effects reach them anyway. A two-day redemption guarantee, monthly CEO/CFO-certified reserve reports, and a defined process for handling a shortfall are the specific mechanisms that turn "this stablecoin is backed one-to-one" from a marketing claim into something enforceable. They also reshape competition: an issuer that can't or won't meet these standards loses access to the regulated end of the U.S. market, while an issuer that already operates conservatively — holding more capital than the minimum, publishing detailed reserve breakdowns — gains a real edge once the baseline everyone else has to hit gets written into federal rule rather than left to each company's own discretion. That's also why the tiered capital structure matters beyond accounting trivia: it changes the unit economics of running a stablecoin at scale, which flows through to how competitive the market for stablecoins looks in a few years, not just how safe any single one is today. Watch the comment period closely, too — the exact capital ratios and redemption timelines in the final rule are still negotiable, and issuers with the most to lose from a strict standard are already the ones best resourced to lobby for a softer one.

Further reading

Frequently asked

When do these stablecoin rules actually take effect?

The GENIUS Act itself takes effect January 18, 2027, or 120 days after final implementing rules are published, whichever comes first. The rules proposed here aren't final yet — they're open for a 60-day public comment period first.

Does this affect Tether (USDT), since it isn't a U.S. company?

The proposal covers issuers seeking Federal Reserve supervision under the GENIUS Act framework, which is built around the U.S. market. An offshore issuer can keep operating outside that framework, though the GENIUS Act separately restricts how a non-U.S. stablecoin can be marketed and distributed to U.S. persons.

What happens to my stablecoin if an issuer's reserves fall short?

Under the proposal, the issuer must notify the Fed immediately and either restore reserves through an approved remediation plan or liquidate and redeem the outstanding stablecoins. There's no scenario where a shortfall is allowed to just sit unresolved.