Nine months after the GENIUS Act became law, three federal agencies are simultaneously drafting the rules that will govern a $323 billion stablecoin market. The Office of the Comptroller of the Currency published its proposed rule on February 25, 2026. The FDIC followed on April 7. FinCEN and OFA...
"The way in which the GENIUS Act is implemented could have significant effects on financial stability, credit creation, consumer protection and the broader economy." — Bank Policy Institute, Consumer Bankers Association & Financial Services Forum, Joint Comment Letter to OCC (May 1, 2026)
Nine months after the GENIUS Act became law, three federal agencies are simultaneously drafting the rules that will govern a $323 billion stablecoin market. The Office of the Comptroller of the Currency published its proposed rule on February 25, 2026. The FDIC followed on April 7. FinCEN and OFAC issued a joint anti-money-laundering proposal in parallel. Comment periods have closed or are closing, and the banking industry is already pushing back.
The stakes are concrete. Stablecoin transaction volumes hit $10.9 trillion in 2025, according to McKinsey and Artemis Analytics — approaching Visa's $14.2 trillion. The GENIUS Act's effective date is July 18, 2027 at the latest, or 120 days after final rules are issued, whichever comes first. Every major issuer — Circle, Tether, PayPal, and now the largest U.S. banks — is positioning for a regulatory framework that will determine who can issue, what reserves are required, and whether yield payments are permitted.
This report examines the three rulemaking tracks, the yield prohibition controversy, and the competitive repositioning underway among banks and crypto-native issuers.
The GENIUS Act, signed July 18, 2025, established the statutory framework. Implementation falls to three regulators operating on parallel but uncoordinated timelines.
OCC (February 25, 2026): The OCC's Notice of Proposed Rulemaking covers OCC-licensed Permitted Payment Stablecoin Issuers (PPSIs). The 211-question proposal addresses application requirements, permissible activities, reserve composition, redemption procedures, capital adequacy, and risk management. The 60-day comment period closed May 1, 2026.
FDIC (April 7, 2026): The FDIC published its own NPRM establishing requirements for FDIC-supervised PPSIs and insured depository institutions engaging in stablecoin-related activities. The proposal notably specifies that deposits held as reserves backing stablecoins would not be insured to stablecoin holders on a pass-through basis — a provision that drew immediate industry attention. Redemption must occur within two business days.
FinCEN/OFAC (concurrent): The Treasury's Financial Crimes Enforcement Network and Office of Foreign Assets Control issued a joint proposed rule implementing the GENIUS Act's anti-money-laundering and sanctions compliance program requirements for stablecoin issuers.
The Bank Policy Institute, Consumer Bankers Association, and Financial Services Forum filed a joint comment letter on May 1 requesting that all three comment periods be synchronized, arguing that the OCC, FDIC, and FinCEN/OFAC rules are "directly contingent" on each other. According to reporting by CoinDesk, banking trade groups sought extended comment periods of at least 60 days after the OCC's final framework is published, effectively requesting a sequential rather than parallel rulemaking process.
The OCC proposal establishes specific parameters for what counts as a permissible reserve asset:
All reserves must be maintained at fair value on a 1:1 basis against outstanding stablecoin issuance at all times — not on a daily average or end-of-day basis.
The capital requirement introduces a 12-month operating expense backstop that must be held in cash or near-cash assets, segregated from reserves. If a PPSI fails to meet capital or backstop minimums for two consecutive quarters, the OCC proposal mandates a wind-down: full redemption of all outstanding stablecoins without fees.
This is a higher standard than many existing issuers currently maintain. Circle's USDC, which holds reserves primarily in short-dated Treasuries and cash, is broadly aligned with the proposed composition. Tether's global USDT portfolio — which as of its most recent attestation includes secured loans, precious metals, and Bitcoin — would not qualify under the OCC's proposed reserve categories for U.S.-regulated issuance.
The single most contentious provision in the GENIUS Act implementation is the prohibition on paying interest or yield to stablecoin holders. The statute bars issuers from paying yield. The OCC's proposed rule expands this prohibition to affiliates and third parties, aiming to prevent circumvention through indirect structuring.
According to American Banker, the yield debate "dominated" GENIUS rule comments. The positions break down along predictable lines:
Banks argue that allowing stablecoin yield would drain deposits from the banking system, reducing lending capacity. The BPI's comment letter specifically flagged the need to close what it called a "loophole" in the GENIUS Act's yield prohibition.
Crypto-native firms argue that the prohibition is anticompetitive — banks pay interest on deposits, so barring stablecoin yield creates an asymmetry that protects incumbents from competition.
The White House weighed in. In April 2026, the Council of Economic Advisers published an analysis finding that a full prohibition on stablecoin yield would increase aggregate bank lending by $2.1 billion — a 0.02% change — while imposing a net welfare cost on consumers. The analysis suggests the deposit-drain argument is quantitatively weak.
A structural gap remains: the GENIUS Act does not explicitly prevent exchanges from paying rewards on stablecoins held in custody. Most retail stablecoin use occurs through intermediaries. An issuer passes interest earned on reserves to the exchange, which uses it to pay users. This three-party model may survive the prohibition even if the OCC's expansive interpretation is finalized, though legal uncertainty is high.
The four largest stablecoin operations are each adapting to the incoming framework differently.
Circle (USDC — $79B market cap): Circle is the most visibly aligned with the GENIUS Act's requirements. It holds reserves primarily in short-dated Treasuries and cash at regulated banks, already publishes monthly attestations, and holds a French license under the EU's MiCA regime. USDC supply grew 220% since late 2023, and inflows of $1.61 billion were recorded between May 3-10, 2026 alone. Circle's positioning as the "compliance-first" issuer appears validated by the proposed rules.
Tether (USDT — $190B; USAT — ~$18M): Tether operates a dual-track strategy. USDT, with $189.6 billion in circulation, remains the dominant global stablecoin but faces structural challenges under GENIUS: Tether would need a U.S. banking license or partnership to legally issue to American users. In response, Tether launched USAT on January 27, 2026, through Anchorage Digital Bank, which holds a federal OCC charter. USAT's first reserve attestation, conducted by Deloitte, showed $17.6 million in reserves backing 17.5 million tokens as of January 31, 2026. Tether invested $100 million in Anchorage to scale the operation, though USAT's current supply remains a rounding error against USDT's $190 billion.
PayPal (PYUSD — ~$4B): PayPal's PYUSD, issued by Paxos Trust Company, grew 680% year-over-year to a $4.08 billion market cap in Q1 2026, making it the fastest-growing major stablecoin by percentage. PayPal expanded PYUSD to 70 markets in March 2026. Fiserv and PayPal announced plans to make their respective stablecoins (FIUSD and PYUSD) interoperable — a development that, if realized, would create a payment-network-native stablecoin layer.
JPMorgan (JPM Coin / Kinexys): JPMorgan's phased 2026 integration focuses on enabling issuance, transfer, and near-instant redemption of its digital payments token on the Canton Network, with potential expansion to additional Kinexys products.
The GENIUS Act explicitly permits banks to issue stablecoins, and the industry is responding.
The Wall Street Journal reported that JPMorgan Chase, Bank of America, Citigroup, and Wells Fargo held early discussions about jointly issuing a stablecoin. The effort reportedly involved Early Warning Services (operator of Zelle) and The Clearing House, both co-owned by these banks. The logic was scale: a pooled stablecoin could support payments across a wide merchant and consumer base from day one.
The joint venture appears to have stalled. Wells Fargo filed a trademark application for "WFUSD" on March 10, 2026, suggesting banks may pursue individual issuance rather than a consortium model. The competitive dynamics make a joint venture difficult: each bank has different infrastructure, compliance frameworks, and strategic objectives.
According to Better Markets, a consumer advocacy group, the OCC proposal "fails to address stablecoin risks" sufficiently, raising concerns that bank-issued stablecoins could introduce new systemic interconnections between the crypto ecosystem and the traditional banking system.
The stablecoin market as of May 2026:
| Issuer | Token | Market Cap | Share | |--------|-------|-----------|-------| | Tether | USDT | $189.6B | 58.8% | | Circle | USDC | $79.0B | 24.5% | | MakerDAO | DAI/USDS | ~$9B | ~2.8% | | PayPal/Paxos | PYUSD | ~$4.0B | ~1.2% | | Tether/Anchorage | USAT | ~$18M | <0.01% | | Total Market | | $323B | |
The top five issuers control 89.24% of the market, according to Q1 2026 data. Stablecoins accounted for 75% of total crypto trading volume in Q1 2026.
The concentration is relevant to the GENIUS Act implementation. The OCC's framework is designed to regulate issuers above $10 billion in outstanding stablecoins — currently only Tether and Circle. Smaller issuers fall under state-level regulation unless they opt into the federal framework. This two-tier system creates potential regulatory arbitrage between federal and state regimes.
Stablecoins are increasingly a cross-border payments instrument, not merely a crypto trading tool. B2B stablecoin transactions surged 733% year-over-year in 2025, now accounting for approximately 60% of all stablecoin payment volume, according to industry data. Asian-originated stablecoin payments totaled $245 billion, representing 60% of global stablecoin payment volume.
The Federal Reserve published a research note on March 30, 2026, examining "Payment Stablecoins and Cross-Border Payments: Benefits and Implications for Monetary Policy Implementation." The note acknowledged that stablecoins are functioning as de facto dollar-denominated payment instruments in foreign jurisdictions — extending the dollar's reach but also creating potential monetary policy transmission complications.
Visa's stablecoin settlement program reached a $4.5 billion annualized run rate by January 2026. McKinsey identified $390 billion in genuine stablecoin payment activity in 2025 (excluding trading and automated transfers), more than double the 2024 figure.
The GENIUS Act applies to U.S.-regulated issuers, but its reserve and redemption standards will likely function as a global benchmark. The EU's MiCA framework is already in effect. Singapore, Japan, and the UAE have published their own stablecoin regimes. The question is whether the U.S. framework will be compatible with these international standards or create fragmentation.
The GENIUS Act established the statutory skeleton. The real substance — who wins and who loses — is being determined now, in comment letters, proposed rules, and inter-agency negotiations. The OCC's May 1 comment deadline has passed. The FDIC's comment period is open. Final rules could arrive as early as Q4 2026, with the statutory backstop of July 18, 2027.
The economic value at stake is measurable: $323 billion in stablecoin market capitalization, $10.9 trillion in annual transaction volume, and a payments infrastructure that Visa and the Federal Reserve now treat as systemically relevant. The three-agency rulemaking process will determine how that value is distributed — between banks and non-banks, between U.S.-regulated issuers and offshore operators, and between capital holders and consumers seeking yield.
The data suggests that the GENIUS Act, for all its statutory clarity, has deferred the hard questions to the regulatory process. Those questions are being answered now.