The Federal Reserve Board published two proposed rules on September 24, 2026, establishing reserve, capital, and risk-management requirements for payment stablecoin issuers under its supervision. The proposals implement the Guiding and Establishing National Innovation for U.S. Stablecoins Act (GE...
"Stablecoins will only be stable if they can be reliably and promptly redeemed at par in a range of conditions. This includes during market stress, when pressure can be put on the value of even otherwise liquid government debt." — Michael Barr, Federal Reserve Governor
The Federal Reserve Board published two proposed rules on September 24, 2026, establishing reserve, capital, and risk-management requirements for payment stablecoin issuers under its supervision. The proposals implement the Guiding and Establishing National Innovation for U.S. Stablecoins Act (GENIUS Act), signed into law on July 18, 2025. The Fed is the last of three primary federal banking regulators to issue proposed rules, following the OCC (February 2026) and FDIC (April 2026). None of the six required federal agencies finalized their rules by the July 18, 2026 statutory deadline. The GENIUS Act now takes effect on January 18, 2027, under the 18-month trigger.
The combined rulemaking effort covers a $314 billion stablecoin market where two issuers — Tether ($183.3 billion) and Circle ($73.7 billion) — control 81.7% of outstanding supply. Industry estimates place annual compliance costs at approximately $15 million per issuer, a figure that renders stablecoin issuance economically unviable for operators with less than roughly $500 million in circulation. The result is a regulatory architecture that codifies institutional dominance while pricing mid-market entrants out of the U.S. market.
The Federal Reserve published its two rules in the Federal Register on September 29, 2026 (Docket No. 2026-19860). The first proposal targets Board-supervised payment stablecoin issuers directly — nonbank entities that obtain Fed supervision to issue stablecoins. The second covers Fed-supervised banks seeking approval for subsidiaries to issue payment stablecoins.
The 60-day comment period runs through late November 2026. The Fed structured the proposals to address what Governor Michael Barr described as the need for "strong guardrails and consumer protections so that new instruments can foster payments improvements that benefit households and businesses."
Both proposals define the same core obligations: full reserve backing, capital adequacy, risk-management programs, and redemption standards. The dual structure reflects the GENIUS Act's recognition that stablecoins can be issued by either dedicated nonbank entities or through banking subsidiaries, each requiring a distinct supervisory approach.
The Fed's reserve mandate requires permitted payment stablecoin issuers to hold at least one dollar of permissible reserve assets for every dollar of stablecoin outstanding. Permissible reserve assets include:
This mirrors the GENIUS Act's statutory requirement for 1:1 backing but adds specificity about asset quality. The practical effect is to eliminate the use of commercial paper, corporate bonds, or other lower-quality instruments as reserves — a constraint that directly addresses the controversies that surrounded Tether's reserve composition from 2021 through 2023.
The OCC's earlier proposal (February 2026) contained similar reserve standards, and the FDIC's April 2026 proposal aligned with both. Across all three regulators, the message is consistent: reserves must be liquid enough to honor redemptions during market stress without forced selling.
The Fed's proposals codify one of the GENIUS Act's most consequential provisions: payment stablecoin issuers may not pay holders any form of interest or yield — in cash, tokens, or other consideration — solely in connection with holding, using, or retaining the stablecoin.
The proposal includes an anti-evasion presumption. If an affiliate, partner, or white-label distributor pays rewards to stablecoin holders for holding the token, the Fed presumes those payments constitute prohibited yield. The burden falls on the issuer to demonstrate that such programs are not disguised interest payments.
This prohibition creates a structural separation between payment stablecoins and yield-bearing tokenized assets. Products like BlackRock's BUIDL ($2.8 billion AUM) and Circle's USYC ($3 billion AUM), which pay holders a share of Treasury bill yields, would not qualify as "payment stablecoins" under the GENIUS Act framework. They occupy a different regulatory category — tokenized securities or money market instruments — subject to SEC oversight rather than banking regulation.
The yield ban also constrains competitive strategy. Coinbase currently pays USDC holders up to 4.1% APY on balances held in its platform, funded by Circle's reserve income. Under the anti-evasion presumption, such programs would face scrutiny as potential disguised yield. The OCC's February proposal contained an identical prohibition, suggesting uniform enforcement across regulators.
Beyond reserves, the Fed proposes standardized capital requirements to address credit and operational risks. While the proposals do not specify exact capital ratios — those details are expected in the final rule — the framework borrows from existing bank capital concepts:
The FDIC's April proposal was the most prescriptive of the three, requiring issuers to maintain "adequate capital" commensurate with the "nature, scope, and risks of their activities." The OCC's version introduced a risk-weighted asset framework for stablecoin reserves. The Fed's September proposal sits between the two in specificity, establishing principles while reserving detailed calibration for final rulemaking.
All three regulators require issuers to maintain board-level risk governance, independent compliance functions, and periodic stress testing of redemption capacity.
The Fed mandates that payment stablecoin issuers redeem tokens at par value within two business days of receiving a valid request. Issuers may choose faster redemption — and market competition will likely push toward near-instantaneous processing — but the two-day floor is the regulatory minimum.
Additional consumer protections include:
The lending prohibition is significant. It prevents stablecoin issuers from operating as fractional-reserve banks, maintaining a strict separation between payment instruments and credit creation. This distinction positions payment stablecoins as narrow-bank equivalents — entities that hold reserves and process payments but do not take deposits or make loans.
The GENIUS Act assigned rulemaking responsibilities to six federal bodies. As of October 1, 2026, the status is:
| Agency | Proposal Date | Comment Period | Final Rule | |---|---|---|---| | OCC | February 25, 2026 | Closed | Pending | | FDIC | April 9, 2026 | Closed | Pending | | Treasury (state similarity) | April 3, 2026 | Closed | Pending | | FinCEN (AML/KYC) | June 2026 | Closed | Pending | | Federal Reserve | September 24, 2026 | Open (60 days) | Pending | | OFAC (sanctions) | June 2026 | Closed | Pending |
The statutory deadline for final rules was July 18, 2026 — one year after the GENIUS Act's enactment. All six agencies missed it. Under the Act's fallback provision, the law takes effect automatically on January 18, 2027 (18 months after enactment), regardless of whether final rules are in place.
This creates a potential gap: the GENIUS Act's statutory requirements become binding in January 2027, but the detailed implementing regulations may still be in proposed or interim-final form. Issuers face the prospect of complying with the statute's broad mandates while awaiting specific guidance on capital ratios, reserve composition, and reporting formats.
Section 4(c) of the GENIUS Act preserves a state regulatory pathway for issuers with less than $10 billion in consolidated outstanding stablecoins, provided the state framework is certified as "substantially similar" to the federal framework.
The Treasury Department proposed "substantially similar" standards on April 3, 2026, requiring state regimes to match federal requirements on:
States must submit initial certifications and annual renewals to a federal review panel. Wyoming, New York, and California are widely expected to qualify based on existing regulatory frameworks. Wyoming's Special Purpose Depository Institution (SPDI) charter and New York's BitLicense regime already impose reserve and capital requirements on stablecoin-adjacent activities.
For issuers above $10 billion in outstanding stablecoins, federal supervision is mandatory. This means Tether ($183.3 billion) and Circle ($73.7 billion) have no state option. They must comply with the OCC, FDIC, or Fed frameworks directly — or, in Tether's case, navigate the foreign issuer pathway.
According to a Forkast analysis published in July 2026, annual compliance costs under the GENIUS Act framework run approximately $15 million per issuer. This figure covers:
For a $200 million stablecoin issuer generating roughly $7.5 million in annual gross reserve income (at ~3.75% on Treasury bills), compliance costs exceed revenue. According to Forkast, "a $200M issuer is dead before operations."
The math improves at scale. A $10 billion issuer generating $375 million in reserve income can absorb $15 million in compliance costs at a 4% margin impact. A $75 billion issuer like Circle faces less than a 0.5% drag. The economics create a natural floor: viable stablecoin issuance requires hundreds of millions — likely north of $500 million — in outstanding supply to cover compliance overhead.
This dynamic favors incumbents. Tether and Circle enter the GENIUS Act era with 81.7% combined market share and years of compliance infrastructure built across state-level money transmitter licensing. The regulatory framework transforms their existing scale into a structural moat.
Tether has adopted a dual-product approach to GENIUS Act compliance. In January 2026, the company launched USAT, a US-dollar stablecoin issued through Anchorage Digital Bank (a federally chartered institution) with Cantor Fitzgerald as reserve custodian. USAT launched with $10 million in initial supply and is now listed on Bybit, Crypto.com, Kraken, OKX, and MoonPay.
USDT ($183.3 billion outstanding) continues to serve the global market from Tether's El Salvador base. For USDT to remain available to U.S. businesses after January 2027, Tether requires a Treasury reciprocity determination under the GENIUS Act's foreign issuer pathway. As of October 2026, that determination has not been issued.
Forbes reported in May 2026 that "Tether's USAT exists so USDT never has to comply," characterizing the two-track structure as a hedge against regulatory risk. If USDT fails to secure foreign issuer status, USAT provides a GENIUS Act-compliant product for the U.S. market while USDT continues operating internationally.
White House digital assets advisor Bo Hines stated publicly that Tether intends to follow GENIUS Act rules for both USDT and USAT, though the mechanisms differ. USDT would rely on a foreign reciprocity agreement; USAT operates directly under Anchorage's federal charter.
The regulatory framework arrives during a period of accelerating stablecoin adoption:
Cross-border settlement is the primary use case. B2B transactions account for 97.8% of stablecoin payment volume in early 2026, according to industry data. Stablecoins now settle transactions in specific corridors 500x faster than traditional wire systems, per McKinsey and Artemis Analytics.
The GENIUS Act does not constrain this growth directly — its reserve and redemption rules apply to issuers, not users. But the compliance cost floor reshapes who can issue, concentrating the supply side around a smaller number of well-capitalized entities.
The GENIUS Act's rulemaking process is functionally complete at the proposal stage. Three banking regulators (OCC, FDIC, Fed), Treasury, FinCEN, and OFAC have all published proposed rules. The regulatory architecture is visible: 1:1 reserves in high-quality liquid assets, no yield on payment stablecoins, two-day redemption floors, AML/KYC compliance, capital adequacy requirements, and a $10 billion line between state and federal oversight.
What remains unresolved is finalization. The January 2027 effective date approaches with proposed — not final — rules in place. Issuers face a compliance environment where the statutory mandates are clear but the implementing details remain subject to revision. For the two issuers that control more than four-fifths of the market, this ambiguity is manageable — they have the legal and operational infrastructure to adapt. For smaller issuers and would-be entrants, the combination of compliance costs and regulatory uncertainty may prove decisive.
The stablecoin market grew 142% from January 2025 to September 2026. The GENIUS Act does not slow that growth. It determines who captures it.