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FinCEN: Financial Crimes Enforcement Network
Since 1990· Institution or agency
Fact, law or dataA rule, statute, definition or measured number.
The Treasury bureau that collects bank reports on large cash and suspicious transactions and turns them into leads for investigators.
See it on the Money & Finance map →How it works
Founded in 1990 and made a bureau by the 2001 PATRIOT Act, FinCEN administers the Bank Secrecy Act. Banks, casinos and money transmitters file about 20 million Currency Transaction Reports a year for cash over $10,000, plus millions of Suspicious Activity Reports, which FinCEN shares with the FBI, IRS and others. Splitting deposits to dodge the $10,000 report, called structuring, is itself a crime. Since 2016 'geographic targeting orders' have made title insurers name the owners behind all-cash LLC home purchases in big metros.
Why it matters
It is the backbone of US anti-money-laundering rules: bank ID checks, transaction monitoring and cash reporting all feed the reports FinCEN collects.
Facts, rules and data
The Bank Secrecy Act of 1970 and FinCEN's regulations; its reports on filing volumes; the 2020 'FinCEN Files' leak of about 2,100 reports showed banks flagging suspicious money yet still moving it.
Debates and risks
Whether millions of reports produce enough cases to justify banks' compliance costs, estimated in the billions of dollars a year, is debated; few reports lead to prosecutions.
Connections (4)
▸US Department of the Treasury houses FinCEN: Financial Crimes Enforcement NetworkFact, law or data
The connection
FinCEN sits in Treasury's Office of Terrorism and Financial Intelligence, alongside OFAC. The Treasury Secretary holds the Bank Secrecy Act powers and delegates them to FinCEN, which writes the reporting rules banks follow, collects the reports, and can cut foreign banks off from the US system under Section 311 of the PATRIOT Act.
When and why
Washington; created by Treasury order in April 1990, made a bureau in 2001, and grouped under the new Office of Terrorism and Financial Intelligence in 2004.
How we know
Treasury delegation orders and FinCEN's regulations (31 CFR chapter X); Section 311 actions such as the 2005 finding against Macau's Banco Delta Asia over North Korean funds.
Debates and risks
Whether FinCEN, with only about 300 staff, can meaningfully analyze millions of reports a year, and how far its rules should be eased for small businesses.
▸FinCEN: Financial Crimes Enforcement Network enforces Bank Secrecy Act and anti-money-laundering rulesFact, law or data
The connection
FinCEN, a Treasury bureau, writes the Bank Secrecy Act rules, receives the reports and runs the database investigators search. It shares data with police, the IRS and the FBI, and fines violators. Routine exams are delegated to bank regulators and, for non-bank businesses, to the IRS.
When and why
FinCEN was formed in 1990 and took over Bank Secrecy Act administration in 1994; it is based in Vienna, Virginia.
How we know
Treasury delegation orders, FinCEN's published rules and penalty orders, and its reports on filing volumes.
Debates and risks
Critics question whether FinCEN, with a few hundred staff, can analyze millions of reports a year, and how much privacy its database costs.
▸FinCEN: Financial Crimes Enforcement Network now collects only foreign firms' data under Corporate Transparency Act and LLC ownership reportingFact, law or data
The connection
The act put FinCEN in charge of a confidential owner registry, open to police, regulators and, with consent, banks. After court fights and a policy change, FinCEN's March 2025 interim rule cut the filing duty to foreign companies registered to do business in a US state.
When and why
Registry opened January 2024; enforcement paused December 2024; US companies exempted March 2025.
How we know
FinCEN's 2022 and 2025 rules and published notices, and federal court orders in Texas and Alabama.
Debates and risks
Whether the exemption lasts, and what becomes of data already filed by millions of US companies, are unresolved.
▸Check fraud: mail theft, 'check washing' and Positive Pay drew a 2023 alert from FinCEN: Financial Crimes Enforcement NetworkFact, law or data
The connection
Banks report suspected fraud to FinCEN in Suspicious Activity Reports. When check-fraud reports nearly doubled to over 680,000 in 2022, FinCEN and the Postal Inspection Service issued an alert listing red flags and asking banks to tag reports 'FIN-2023-MAILTHEFT', which let FinCEN measure the problem.
When and why
Washington, February 27, 2023; FinCEN's follow-up analysis was published in September 2024.
How we know
The alert and FinCEN's 2024 trend analysis: 15,417 reports from 841 institutions, over $688 million, from February to August 2023.
Debates and risks
Report totals include attempts and full check amounts, so actual losses are uncertain; how much involves organized rings is still being investigated.