Bank Secrecy Act Convertible Virtual Currency MSB Regime

The Bank Secrecy Act Convertible Virtual Currency Money Services Business regime is the U.S. federal anti-money laundering and countering-the-financing-of-terrorism framework that FinCEN applies to certain convertible virtual currency activity. As of June 4, 2026, the regime remains in force through the Bank Secrecy Act, FinCEN’s MSB regulations in 31 CFR Chapter X, and FinCEN guidance for convertible virtual currencies, while a 2026 FinCEN proposed rule could revise AML/CFT program requirements if finalized.

How the BSA applies to convertible virtual currency

FinCEN’s 2013 guidance is the core public statement for the CVC MSB regime. It distinguishes a user of virtual currency from an administrator or exchanger. A user that obtains CVC to buy goods or services is not an MSB under FinCEN’s regulations, while an administrator or exchanger is generally an MSB, specifically a money transmitter, unless a regulatory limitation or exemption applies.

The federal money transmitter definition is activity-based. Current 31 CFR 1010.100(ff) covers persons doing business wholly or substantially within the United States as MSBs, and defines money transmission services as accepting currency, funds, or other value that substitutes for currency and transmitting it to another person or location by any means.

Core MSB obligations for CVC businesses

When CVC activity falls within money transmission, the federal BSA framework can bring the actor into the MSB rule set. FinCEN’s 2019 guidance states that persons accepting and transmitting CVC are required, like other money transmitters, to register with FinCEN as MSBs and comply with AML program, recordkeeping, monitoring, and reporting requirements, including SARs and CTRs.

• MSB registration: covered MSBs register with FinCEN and renew on a two-calendar-year cycle.
• AML program: MSBs maintain written AML programs reasonably designed to prevent misuse for money laundering and terrorist financing.
• Suspicious activity reporting: MSBs file SARs for covered suspicious transactions meeting the regulatory criteria.
• Currency and funds-transfer records: MSBs are subject to CTR, recordkeeping, and transmittal-of-funds rules where those rules apply.

Scope limits and jurisdictional reach

The regime does not mean every crypto holder, software developer, or merchant accepting crypto is automatically a FinCEN-regulated MSB. FinCEN emphasizes that the analysis depends on facts and circumstances, not labels. Its 2019 guidance says it consolidated existing regulations, rulings, and guidance rather than establishing new requirements, and notes that a person may still have BSA obligations even when a business model is not expressly discussed.

The regime can also reach foreign-located CVC money transmitters doing business wholly or substantially in the United States. FinCEN’s 2011 MSB rule added coverage for certain foreign-located MSBs conducting MSB activity in the United States, and the 2019 CVC guidance states that CVC money transmitter requirements apply to domestic and foreign-located transmitters doing business in whole or substantial part within the United States.

Status and related developments

The CVC MSB regime should be treated as a federal AML/CFT regime, not a state money-transmitter licensing profile and not a securities or commodities market-structure rule. FinCEN’s 2013 guidance states that it explains how FinCEN characterizes certain virtual currency activity under the BSA and FinCEN regulations, not whether those activities comply with other federal or state laws.

For Crypto Laws linking, related profiles may include the 2011 FinCEN MSB definitions rule, FIN-2013-G001, FIN-2019-G001, the 2026 AML/CFT program modernization NPRM, federal digital asset broker tax-reporting rules, and state money-transmitter licensing frameworks.