FinCEN Orders US Banks to Cut Off MEXC Over Alleged $16B in Illicit Flows

FinCEN, the US Treasury bureau that oversees financial crime enforcement, has ordered US financial institutions to stop processing transfers involving cryptocurrency exchange MEXC Global. The agency’s final order, issued under section 9714(a), alleges that at least $16 billion in transactions linked to MEXC involved illicit activity.

The restriction takes effect 30 days after the order is published in the Federal Register. The reports do not specify when that publication will occur.

What the FinCEN order means for MEXC

Under the order, US financial institutions will be barred from sending funds to or receiving funds from MEXC. That targets the exchange’s connections to the US financial system; the reporting does not say that the order shuts down MEXC globally or directly blocks customers from accessing crypto already held on the platform.

Bitcoin Magazine notes that the order was issued under section 9714(a), a provision that allows the Treasury to cut off designated entities from the US financial system. The $16 billion figure is an allegation cited by FinCEN, not a finding that every transaction in that amount was illicit. The supplied reports do not provide a breakdown of the activity or details of MEXC’s response.

What MEXC users should watch for

For users, the immediate practical issue is whether banks and payment providers can continue handling transfers connected to MEXC once the restriction takes effect. The key trigger is publication in the Federal Register, followed by the 30-day period—not simply the announcement date.

This action concerns the traditional financial rails that connect exchanges to banks, rather than a direct change to how crypto assets move on a blockchain. That distinction matters: a US bank transfer may be affected even if an exchange’s crypto services remain available elsewhere. The move also fits a broader compliance trend in which authorities target intermediaries and payment access; for comparison, Tether’s freeze of suspected illicit crypto funds addressed assets directly rather than a bank-to-exchange relationship.