Last week, the GENIUS Act was a statute with a deadline; this week, it became a draft operating manual with a specific cost structure. The Federal Reserve on September 24 released two proposals that turn the stablecoin law into granular rules for banks and issuers under its supervision, opening a 60-day comment period. But the thing most readers will get wrong is assuming this is about crypto. It is not. This is a bank story masquerading as a crypto story, and the fine print reveals a framework that favors the institutions already holding the safe assets and compliance machinery—while leaving the hardest questions, like what happens during a market panic, unanswered.
The first proposal does what the headline says: it requires Board-supervised payment stablecoin issuers to fully back their tokens with permissible reserve assets. That means short-term U.S. Treasury bills, Federal Reserve bank balances, certain bank deposits, Treasury securities with a remaining maturity of no more than 93 days, qualified repurchase agreements, and qualified investment funds. Some tokenized forms of these assets may be included. The list is deliberately narrow. It closes the gap between a stablecoin’s face value and whatever actually sits behind it—a gap that has varied widely across issuers.
But full backing is not the same as frictionless redemption, and the Fed knows it. The proposal would generally require issuers to process customer redemptions within two business days. If reserves fall below the required one-to-one backing, the issuer must notify the Fed and either restore adequate backing under a remediation plan or liquidate reserve assets and redeem all outstanding tokens. That liquidation trigger is the teeth. It turns a reserve shortfall from an accounting problem into an existential event for the issuer.
Full backing is not the same as frictionless redemption; the Fed’s two-day rule has teeth only if reserves can be liquidated under stress.
The capital rules are where the economics live. The Fed proposes an operational-risk capital charge of 2% for the first $20 billion in stablecoins outstanding, 1.5% for the next $30 billion, and 1% for amounts above $50 billion. That tiered structure is a deliberate choice. It gives smaller issuers a proportionally heavier burden while allowing the largest players to scale with a lighter marginal cost. A $100 billion issuer would hold far less capital per dollar than a $5 billion issuer. The framework tilts toward size.
There is also a separate proposal for banks. A Board-supervised bank seeking to issue payment stablecoins would have to submit a business plan and financial information through a formal application process, with procedures for appeals, hearings, and final decisions. The GENIUS Act stipulates that once an application is substantively complete, the Fed must decide within 120 days. That timeline is a real constraint, but the entry gate is explicit. Banks have been waiting for exactly this: a formal route rather than case-by-case improvisation.
Fed Governor Michael Barr supported the proposals but attached a warning that reads as the central unresolved tension. "Stablecoins will only be stable if they can be reliably and promptly redeemed at par in a range of conditions," he said. "This includes during market stress, when pressure can be put on the value of even otherwise liquid government debt, and during episodes of strain on the individual issuer or its related entities." Barr is pointing at the gap between a two-day redemption window in normal times and a two-day redemption window when Treasury markets are seizing up. The proposal mandates the former. It does not yet guarantee the latter.
Barr also raised a specific objection to the anti-money laundering standard. He expressed concern about a threshold for triggering regulatory or enforcement actions that would require AML deficiencies to reach "significant or systemic" levels. In plain terms, he is worried the rule as drafted would let smaller, recurring compliance failures slide until they become a larger problem. That is a supervisory philosophy disagreement embedded in a technical rulemaking, and it will draw comments.
The disclosures add another layer of cost. Issuers would have to publish monthly reports detailing outstanding stablecoins and the value and composition of reserves. Those reports would have to be examined by a registered public accounting firm and certified by the issuer’s CEO and CFO. Monthly attestation at that level is not a compliance formality. It is a recurring operational expense that smaller issuers will feel disproportionately.
The custody rules matter for the same reason. The proposal introduces rules for Board-supervised firms that safekeep the assets backing stablecoins, and clarifies which stablecoin-related activities are permissible for Board-supervised banks. If reserve assets must sit in supervised arrangements with tighter controls, the odds of commingling or sloppy reserve access should fall. But approved custody, reporting, controls, and legal review are not free. The likely effect is to make payment stablecoins look more like regulated balance-sheet products and less like lightweight software wrappers around dollar claims.
The timing is not accidental. The GENIUS Act is set to take effect on January 18, 2027, or 120 days after federal regulators issue final implementing rules, whichever comes first. The OCC has been racing to finalize its own stablecoin rules by November ahead of that January statutory deadline. Treasury has separately proposed rules that would bar platforms from selling noncompliant stablecoins to U.S. customers. The Fed is one part of a multi-agency build-out, and its September 24 announcement begins a rulemaking process rather than issuing a final rule or authorizing any bank to launch a token immediately.
The broader context includes a stalled market structure bill. On September 15, the Senate failed to advance the Digital Asset Market Clarity Act after a 49-50 vote, short of the 60 votes needed to move forward. That leaves the broader crypto market structure bill in limbo while the stablecoin-specific GENIUS Act implementation proceeds. The contrast is stark: stablecoins are getting a detailed federal rulebook, while the rest of the digital asset market remains without one.
The bank stock reaction was muted but telling. The KBW Bank Index sat at 651.10 after a sharp 4.08% drop on the day, a single-session give-back against a run that still has the group up 41.19% over the past year. The 30-day gain of 9.28% and the 90-day gain of 10.24% show the pullback sitting inside a broader climb. The market is not treating the stablecoin rules as a near-term catalyst. It is treating them as a slow structural tailwind for banks that already have the balance sheets to comply.
That is the real signal. Full-reserve rules favor the institutions that already hold the safe assets and run the compliance machinery to prove it. The Fed’s framework does not just regulate stablecoins. It selects which institutions get to mint dollars on-chain. The comment period, which closes 60 days after publication in the Federal Register, is where the final shape of that selection will be contested. Barr has already flagged redemption rights and AML thresholds as open questions. The omissions in the short public release—final capital formulas, reserve concentration limits, redemption service levels, treatment of uninsured deposits, custody segregation requirements, stress-testing expectations, fee structures—are where the economics live. Those are not technical footnotes. They are the difference between a workable product line and a niche service with too much supervisory friction.