US Treasury plans sweeping AML leash for dollar stablecoin issuers

The US Treasury plans rules forcing dollar stablecoin issuers to build kill switches and run full bank‑style AML and sanctions programs, tightening control over on‑chain flows.

The US Treasury is preparing sweeping anti–money-laundering and sanctions rules that would turn dollar-pegged stablecoin issuers into front-line compliance gatekeepers, forcing them to block, freeze, or reject suspicious on-chain flows, according to a rule package reviewed by CoinDesk. The joint proposal from the Financial Crimes Enforcement Network (FinCEN) and the Office of Foreign Assets Control (OFAC) would require issuers operating in the US to build technical kill switches into their tokens and run full Bank Secrecy Act–style programs, from customer due diligence to suspicious activity reporting.

Under the draft, stablecoin issuers would need systems able to “block, freeze and reject” transactions and halt specifically flagged flows, while dedicating “more attention and resources toward higher-risk customers and activities,” CoinDesk reported. On the sanctions side, OFAC would demand risk-based safeguards for activity in both primary markets (minting and redemption) and secondary markets, with policies designed to “spot and reject transactions that may violate or would violate U.S. sanctions.” The proposal follows a broader push under the Guiding and Establishing National Innovation for U.S. Stablecoins GENIUS Act which effectively treats payment stablecoin issuers as financial institutions under the Bank Secrecy Act, triggering full AML and sanctions obligations.

Treasury officials have framed the GENIUS Act and related rulemakings as balancing law-enforcement needs with innovation, arguing that clear federal standards will support stablecoin use inside the US financial system, even as issuers assume heavier oversight roles. A March 2026 Treasury report to Congress said innovative compliance tools for digital assets should “counter illicit finance involving digital assets” while ensuring the US “remains a leader” in financial innovation. Earlier, White House crypto adviser Patrick Witt argued that a stablecoin regulatory framework could bring “net new capital into the US banking system,” countering fears that tighter rules would drive activity offshore.

In practice, the rules would formalize what some large issuers of dollar-pegged tokens already do: centralized stablecoins can technically freeze, block, or burn tokens, including in secondary markets, when responding to US sanctions or law-enforcement orders. The GENIUS Act and Treasury’s follow-on rules would make those capabilities a legal prerequisite, embedding enforcement tools directly in stablecoin infrastructure and exposing executives to potential criminal liability for false compliance certifications. Legal analysts warn that the requirement to monitor and intervene in secondary-market activity could force issuers to deploy advanced blockchain analytics at scale, raising costs and sharpening the line between regulated, bank-like stablecoin entities and permissionless crypto projects.

In a previous crypto.news story, lawmakers’ work on the GENIUS Act was described as a turning point for stablecoin supervision, with Circle welcoming clearer rules even as rivals like Tether faced renewed questions about sanctions and AML compliance. Another crypto.news story highlighted how US crypto investors lost billions during past enforcement waves, underscoring the stakes as Washington hardens its stance on illicit finance in digital assets. A third story examined how state and federal turf battles over stablecoin oversight could shape where issuers choose to domicile and raise capital, now that Treasury has begun defining when state regimes are “substantially similar” to federal standards.