Financial Crimes Enforcement Network (FinCEN)

The Financial Crimes Enforcement Network (FinCEN) is a bureau of the U.S. Department of the Treasury, established by Treasury order on April 25, 1990 and codified at 31 U.S.C. 310. Its head, the Director, is appointed by the Secretary of the Treasury. FinCEN describes its mission as to "safeguard the financial system from illicit activity, counter money laundering and the financing of terrorism, and promote national security through strategic use of financial authorities and the collection, analysis, and dissemination of financial intelligence." In practice it is the agency that administers the Bank Secrecy Act and receives the reports that law requires.

What FinCEN does. Its Director reports to Treasury's Under Secretary for Terrorism and Financial Intelligence, and its work is the one its mission names: it writes the Bank Secrecy Act regulations, collects the reports filed under them, and analyzes and shares that financial intelligence with law enforcement and other agencies. Banks file their cash transaction reports and suspicious activity reports with it, and individuals with foreign accounts above the reporting threshold file their FBAR with it through the BSA E-Filing System rather than with their tax return.

Where a consumer is most likely to see its name. FinCEN publishes alerts that describe fraud patterns to banks and ask them to flag related reports with specific key terms. Its 2023 alert on the investment scam known as pig butchering and its alert on mail-theft-related check fraud are examples. Those alerts are written for financial institutions, but they are among the clearest public descriptions of how current scams move money.

Beneficial ownership reporting has narrowed. The Corporate Transparency Act gave FinCEN a database of who owns and controls companies. In March 2025 an interim final rule exempted every company formed in the United States, and U.S. persons, from reporting; only certain foreign-formed companies registered to do business in a state still report. A final rule effective August 14, 2026 adopted that narrowing with limited changes. A small business formed here that receives a demand to file, or a bill for not filing, is looking at a request the current rule does not make.

FinCEN publishes a list of what it does not do. Its scams page warns that people pretending to be FinCEN contact the public by phone, text, email, mail and social media, sometimes using the names of real employees, and "may demand payment for alleged anti-money laundering violations." It says FinCEN does not contact members of the public to request payment, does not demand immediate payment or ask anyone to move money to a "safe location," and does not freeze assets: "FinCEN will not contact you about frozen assets or blocked transfers." It asks people to report impersonators to Treasury's Office of Inspector General and the Federal Trade Commission.

Financial institutions and some businesses file required reports with FinCEN electronically. FinCEN stores and analyzes them, shares them with law enforcement and other authorized agencies under the Bank Secrecy Act's rules, and issues regulations, guidance and alerts. Individuals deal with it directly mainly when they file an FBAR, and indirectly every time a bank files a report about a cash transaction.

Take an example of the impersonation pattern. Doris, 71, gets a call from a man who says he works for FinCEN, gives a name and badge number, and tells her that $48,000 in her savings account has been frozen because of a money-laundering investigation. He says the account will be released if she pays a $2,500 "clearance penalty" today, and that to protect the rest she should move it into a "safe" account he names. Each element of the call matches something FinCEN's own scams page says it does not do: it does not call the public to request payment, does not freeze assets, and does not ask anyone to move money to a safe location. Doris loses nothing by hanging up and calling her bank on the number printed on her card, and she can verify any claimed FinCEN contact through the inquiry form at fincen.gov.

Pros

• One agency receives and analyzes the reports from banks, money transmitters and other businesses, which lets patterns show up across institutions.
• Its published alerts give the public plain descriptions of active scams and the red flags banks are told to watch for.
• It states plainly what it does not do, which gives anyone a simple test for a call or letter claiming to be from it.

Cons

• Impersonators use its name, and the names of its real employees, according to its own scams page.
• Much of what it receives is confidential, so a person cannot see what has been reported about them; suspicious activity reports in particular may not be disclosed.
• Beneficial ownership rules changed several times in 2024 and 2025, so older guidance and notices about who must file are now wrong.