# GENIUS Act AML Comment Window Closes June 9 – What Stablecoin Issuers Must Know
The clock is running out on one of the most consequential comment periods in U.S. Cryptocurrency regulation history. On June 9, 2026, the Treasury Department’s Financial Crimes Enforcement Network (FinCEN) closes its comment period on proposed anti-money laundering and sanctions compliance rules for stablecoin issuers operating under the GENIUS Act – the landmark legislation that established a federal system for payment stablecoins in July 2025.
For the estimated 200-plus stablecoin projects navigating compliance, the proposed rules represent both a road map and a list of new obligations. For the broader crypto industry, the outcome of the comment period will shape how the world’s largest stablecoin market – currently valued at over $200 billion – operates for years to come.
Background: The GENIUS Act and Why It Matters
The GENIUS Act, signed into law on July 18, 2025, created the first complete federal system for payment stablecoins in the United States. It established a new category of regulated entity – Permitted Payment Stablecoin Issuers (PPSIs) – and assigned oversight responsibilities across multiple federal regulators depending on the issuer’s structure and affiliation.
Under the Act, PPSIs include both bank subsidiaries (overseen by the FDIC, Federal Reserve, OCC, or NCUA depending on charter type) and non-bank issuers (overseen by the OCC). State-chartered issuers may operate under state frameworks if those frameworks meet a “substantial similarity” threshold to federal rules – a determination that Treasury is also currently seeking comment on in a separate rulemaking with a June 2 deadline.
The result is an overlapping set of comment windows across multiple agencies, all converging in late May and early June 2026, that collectively define what it means to operate a compliant stablecoin business in the United States.
What Treasury’s FinCEN Proposal Requires
The FinCEN notice of proposed rulemaking (NPRM), published April 10, 2026 in the Federal Register, would impose anti-money laundering and countering the financing of terrorism (AML/CFT) program requirements on all PPSIs – including non-bank issuers that fall outside existing Bank Secrecy Act coverage.
Key proposed requirements include:
Formal AML Programs All PPSIs would be required to establish, document, and maintain complete AML/CFT compliance programs with four core elements: internal policies and procedures, a designated compliance officer, ongoing employee training, and independent auditing. This mirrors requirements already applicable to money services businesses (MSBs) and banks, but the GENIUS Act’s definition of PPSIs creates a new category that FinCEN is now bringing explicitly into the BSA system.
Suspicious Activity Reporting (SARs) PPSIs would be required to file Suspicious Activity Reports for transactions meeting specified thresholds and patterns. For stablecoin issuers whose products are used in DeFi protocols, cross-chain bridges, and peer-to-peer transfers, determining which transactions trigger SAR obligations is technically and legally complex – a point several industry groups have flagged ahead of the comment period.
Sanctions Compliance Programs FinCEN’s proposal, coordinated with the Office of Foreign Assets Control (OFAC), would require PPSIs to maintain sanctions screening programs for wallet addresses and stablecoin transfers. The proposal introduces a “reasonable particularity” standard for wallet and stablecoin seizure obligations – a provision that legal analysts at Mayer Brown have identified as potentially significant for liability protection, noting it “may provide liability shields” for issuers who comply in good faith.
Travel Rule Compliance Stablecoin transfers above $3,000 would trigger Travel Rule obligations requiring PPSIs to collect, retain, and transmit originator and beneficiary information. The technical implementation of Travel Rule compliance for stablecoin transfers – which can occur across multiple blockchains and through smart contracts – is a key area where industry comment is expected.
The FDIC’s Parallel Rulemaking
Alongside FinCEN’s June 9 deadline, the FDIC published a separate NPRM in April 2026 covering stablecoin issuers that are subsidiaries of FDIC-supervised banks. That comment period closes on June 2, 2026 – one week earlier.
The FDIC’s proposal addresses application procedures, capital requirements, and operational standards for bank-affiliated PPSIs. It represents the FDIC’s second major GENIUS Act rulemaking, following a December 2025 proposal on application procedures.
Together, the FinCEN and FDIC rulemakings represent the core compliance infrastructure that will govern how stablecoins are issued and transferred in the United States.
Industry Response and Key Concerns
Legal and compliance teams across the stablecoin industry have been preparing comment letters since the rules were published. Several major themes have emerged:
DeFi integration complexity: Tether, Circle, and other major issuers use blacklisting mechanisms to comply with OFAC sanctions, having collectively frozen over $514 million in USDT across 370-plus wallets in a recent 30-day period according to public disclosures. But applying Travel Rule and SAR requirements to stablecoins that flow through autonomous smart contracts – where there’s no intermediary to collect sender/receiver information – creates compliance gaps that existing bank-designed rules don’t resolve.
Wallet screening scalability: Screening every wallet address against OFAC lists and SAR patterns at transaction speed is technically demanding. Blockchain analytics firms like Chainalysis and Elliptic are expected to benefit from the compliance demand, but smaller issuers have raised concerns about the cost burden of sophisticated screening infrastructure.
State preemption questions: The “substantial similarity” standard for state frameworks creates uncertainty for issuers currently operating under state money transmitter licences. Several states – including New York, Wyoming, and Texas – have their own digital asset regulatory frameworks, and the extent to which those frameworks will qualify as GENIUS Act-equivalent is a major open question with commercial implications.
What Happens After June 9
FinCEN will review public comments received before the June 9 deadline and publish a final rule at a date yet to be determined. Given the complexity of the subject matter and the volume of expected industry comments, most regulatory watchers expect the final rule to be published no earlier than late 2026.
In the interim, existing PPSIs are expected to operate under a transitional compliance system that FinCEN indicated will provide clarity in a subsequent guidance document. New entrants seeking PPSI designation after the GENIUS Act’s effective date must comply with the proposed requirements as conditions of approval, even before the final rule is published.
The stablecoin market hasn’t stood still during the regulatory process. Total stablecoin supply crossed $200 billion in early 2026, with Tether’s USDT and Circle’s USDC dominating market share. Coinbase and Flipcash recently launched USDF, a new stablecoin built on Solana targeting business payment corridors – a product that will need to handle exactly the compliance system now being finalised.
For issuers, compliance teams, and legal advisors in the space, June 9 isn’t just a comment deadline. it’s the last formal opportunity to shape the rules that will govern one of the fastest-growing sectors in global finance for the foreseeable future.
FAQ
what’s the GENIUS Act and who does it apply to? The GENIUS Act, signed into law in July 2025, established the first federal regulatory system for payment stablecoins in the United States. It applies to Permitted Payment Stablecoin Issuers (PPSIs), a new category of regulated entity that includes bank-affiliated and non-bank stablecoin issuers. The Act assigns oversight to multiple federal regulators including the FDIC, Federal Reserve, OCC, NCUA, and Treasury’s FinCEN.
What AML requirements are being proposed for stablecoin issuers? Treasury’s FinCEN is proposing that all PPSIs maintain formal AML/CFT programs, file Suspicious Activity Reports for qualifying transactions, set up OFAC sanctions compliance screening for wallet addresses, and comply with Travel Rule requirements for transfers above $3,000. Comments on the proposed rules are due by June 9, 2026.
What happens if stablecoin issuers don’t comply with GENIUS Act rules? Failure to comply with GENIUS Act requirements and associated FinCEN rules can result in enforcement actions, civil penalties, and loss of PPSI designation – which effectively prohibits the issuer from operating in the U.S. Market. FinCEN has broad enforcement authority under the Bank Secrecy Act, which the GENIUS Act extends to cover PPSIs.
