Treasury Tightens Crypto Controls: GENIUS Act Rule Requires Stablecoin Issuers to Block Transactions

The regulatory noose around stablecoins is tightening. This week, the US Treasury Department's Financial Crimes Enforcement Network (FinCEN) and Office of Foreign Assets Control (OFAC) jointly proposed rules to implement the GENIUS Act—legislation President Trump signed into law last July. Here's what crypto market participants need to know.

Stablecoins Now Face Bank-Level Compliance

Under the proposed framework, payment stablecoin issuers will operate under the same rulebook as traditional financial institutions. They'll need to:

• •Establish and maintain comprehensive anti-money laundering (AML) and countering the financing of terrorism (CFT) programs
• •Maintain active sanctions compliance protocols
• •Gain the ability to "block, freeze, and reject" certain transactions at will
• •Register as financial institutions under the Bank Secrecy Act (BSA)

This effectively transforms stablecoin issuers into gatekeepers of the financial system. According to Snir Levi, CEO of blockchain intelligence firm Nominis: "Bringing stablecoin issuers into full BSA/OFAC compliance effectively turns them into bank-like gatekeepers. That means significantly more wallet freezes, transaction blocking and asset seizures at scale."

Translation: The days of frictionless stablecoin transfers are numbered. Expect higher operational costs, slower settlement times, and aggressive transaction monitoring across the sector.

Timeline and Implementation

The GENIUS Act will take effect either 18 months after its July 2025 signing or 120 days after federal authorities finalize their regulations—whichever comes first. This compressed timeline means issuers have limited runway to build compliant infrastructure.

Parallel to Treasury's move, the Federal Deposit Insurance Corporation (FDIC) issued its own proposed rule this week. The key takeaway: stablecoin holders won't receive deposit insurance protection under the framework, though reserve deposits held by issuers will be covered. That's a distinction worth noting for risk management.