The Foreign Account Tax Compliance Act, enacted in 2010 and codified at Sections 1471 through 1474 of the Internal Revenue Code, sets out two connected sets of obligations: foreign financial institutions must identify their US account holders and report those accounts to the IRS, and US taxpayers must separately disclose their foreign financial assets on Form 8938 with their annual return. The enforcement lever behind the FATCA withholding and reporting rules is a 30% tax on US-source payments to any foreign entity that refuses to cooperate.1Office of the Law Revision Counsel. 26 USC 1471 – Withholdable Payments to Foreign Financial Institutions
Who FATCA Applies To
FATCA divides the non-US world into two buckets. Foreign Financial Institutions (FFIs) are foreign entities that accept deposits in the ordinary course of a banking business, hold financial assets for others as a substantial portion of their business, or are primarily in the business of investing or trading in securities, partnership interests, or commodities. That definition captures foreign banks, brokerage firms, mutual funds, hedge funds, and insurance companies that issue cash-value policies or annuity contracts.
Everything else foreign is a Non-Financial Foreign Entity (NFFE). An Active NFFE earns less than 50% of its gross income from passive sources like interest, dividends, rents, and royalties, and less than 50% of its assets produce that kind of income. It is treated as an operating business and faces lighter scrutiny. A Passive NFFE is closer to a holding structure, and it must disclose its substantial US owners to any FFI where it holds an account. A substantial US owner is generally anyone with a direct or indirect ownership interest exceeding 10%.2Internal Revenue Service. Withholding and Reporting Obligations If a Passive NFFE refuses to identify its US owners, the FFI must withhold 30% on withholdable payments to it.
Participating, Non-Participating, and Deemed-Compliant FFIs
The line between participating and non-participating FFIs drives the whole enforcement structure. A Participating FFI has registered with the IRS through the FATCA Registration System and received a Global Intermediary Identification Number (GIIN), which appears on a public IRS list so withholding agents can see that the institution is cooperating.3Internal Revenue Service. FATCA Foreign Financial Institution Registration A Non-Participating FFI has not, and any US-source withholdable payment to it is hit with the 30% tax.
Between them sit Deemed-Compliant FFIs, institutions the IRS treats as low-risk enough that they need not sign a full FFI agreement. Some still register and obtain a GIIN; others simply self-certify. Small local banks with no account exceeding $50,000 in value and total assets under $50 million are a common example.4eCFR. 26 CFR 1.1471-5 – Definitions Applicable to Section 1471
What FFIs Have to Report
Once an FFI identifies a US Reportable Account through its due diligence process, it reports the account holder’s name, address, and US Taxpayer Identification Number; the account number; the year-end balance or value; all interest, dividends, and other income credited during the year; and gross proceeds from sales or redemptions of property held in the account. For accounts held by Passive NFFEs, the FFI reports the same financial details plus the name, address, and TIN of each substantial US owner.
How the data reaches the IRS depends on the FFI’s home country. In a Model 1 IGA jurisdiction, the FFI reports to its local tax authority, which exchanges the information with the IRS. In a Model 2 IGA jurisdiction or a country with no IGA at all, the FFI reports directly to the IRS on Form 8966, the FATCA Report.5Internal Revenue Service. Instructions for Form 8966 – FATCA Report Reporting is annual; the direct-filing deadline is March 31 for the preceding calendar year.
Recalcitrant Account Holders
When an individual account holder will not provide the information the FFI needs to determine their status, that person is classified as a recalcitrant account holder.6Internal Revenue Service. Instructions for Form 8966 (2025) The FFI does not walk away. It reports these accounts to the IRS in aggregate pools by category, disclosing the number of accounts and their combined balance, and payments to recalcitrant holders are themselves subject to the 30% withholding tax.
US Indicia That Force a Closer Look
Certain markers automatically require an FFI to investigate an account further: a US place of birth, a current US mailing or residence address, a US telephone number, standing instructions to transfer funds to a US account, and a power of attorney or signatory authority granted to someone with a US address.7U.S. Department of the Treasury. FATCA Annex I to Model 2 Agreement The FFI must obtain documentary evidence to cure the indicator, such as a non-US passport or a certificate of loss of US nationality. If it cannot, the account is treated as a US Reportable Account.
When the 30% Withholding Tax Applies
A withholdable payment is any US-source fixed or determinable annual or periodical income: interest, dividends, rents, salaries, annuities, and similar recurring items. The statute also reaches gross proceeds from the sale of property that could produce US-source interest or dividends, but Treasury has repeatedly deferred that piece, so in practice FATCA withholding currently applies only to US-source income payments.8Office of the Law Revision Counsel. 26 USC 1473 – Definitions Income effectively connected with a US trade or business is excluded, because it is already taxed under other provisions.
The actual withholding is done by the withholding agent, usually the last US entity or compliant FFI in the payment chain before the money reaches the payee. The agent determines the payee’s FATCA status from the W-8 series; foreign entities certify their Chapter 4 status on Form W-8BEN-E and, where relevant, claim treaty benefits there.9Internal Revenue Service. About Instructions for the Requester of Forms W-8 BEN, W-8 BEN-E, W-8 ECI, W-8 EXP, and W-8 IMY If the documentation shows the payee is a Non-Participating FFI, or if no valid documentation arrives at all, the agent withholds 30%. The withheld amounts are remitted using Form 1042, with Form 1042-S reporting the income and withholding for each foreign payee.
Chapter 4 withholding sits on top of the older Chapter 3 regime. Chapter 3 rates are often reduced or eliminated by tax treaties, but Chapter 4 overrides those treaty benefits when the payee has not met its FATCA obligations. A Non-Participating FFI that would otherwise enjoy a reduced treaty rate still faces the full 30% Chapter 4 tax. Withholding agents evaluate both chapters and apply whichever produces the higher obligation.
How Intergovernmental Agreements Change the Picture
Many countries have bank secrecy or privacy statutes that would forbid a local FFI from sending account information straight to a foreign tax agency. Intergovernmental agreements (IGAs) between Treasury and foreign governments create the legal framework to bridge that conflict, and more than 100 jurisdictions now have one in place.
Under a Model 1 IGA, FFIs report US account information to their own local tax authority, which forwards it to the IRS through automatic exchange. Model 1 agreements come in Reciprocal form, where the US also sends data about the partner country’s residents holding US accounts, and Non-Reciprocal form, where the flow is one-way. Under a Model 2 IGA, FFIs report directly to the IRS, with the agreement itself providing the legal permission to bypass local bank secrecy. The partner government steps in only if a local FFI fails to comply.
FFIs in Model 1 or Model 2 jurisdictions are treated as Participating or Deemed-Compliant, which shields them from the 30% tax on their US-source income. US withholding agents confirm this by checking whether the FFI’s jurisdiction has an IGA in effect and whether the FFI’s GIIN appears on the published IRS list.10Internal Revenue Service. FATCA Registration and FFI List – GIIN Composition Information
What US Taxpayers Have to File: Form 8938
FATCA does not stop at foreign institutions. US taxpayers must separately report their specified foreign financial assets on Form 8938, attached to the annual tax return. The form covers foreign bank accounts, foreign-issued securities, interests in foreign entities, and financial accounts at foreign institutions.
Filing Thresholds
Whether you have to file depends on your filing status and where you live.11Internal Revenue Service. Comparison of Form 8938 and FBAR Requirements For taxpayers living in the United States:
- Single or married filing separately: total value exceeds $50,000 on the last day of the tax year, or $75,000 at any point during the year.
- Married filing jointly: total value exceeds $100,000 on the last day of the tax year, or $150,000 at any point during the year.
For taxpayers living outside the United States the thresholds are significantly higher:
- Single or married filing separately: total value exceeds $200,000 on the last day of the tax year, or $300,000 at any point during the year.
- Married filing jointly: total value exceeds $400,000 on the last day of the tax year, or $600,000 at any point during the year.
Form 8938 Is Not the FBAR
Form 8938 and the Report of Foreign Bank and Financial Accounts (FBAR, FinCEN Form 114) are separate requirements. Filing one does not satisfy the other, and many taxpayers have to file both.
- Threshold: the FBAR kicks in when foreign account balances exceed $10,000 in aggregate at any time during the year. Form 8938 thresholds start at $50,000 and vary by filing status and residence.
- What you report: the FBAR covers financial accounts at foreign institutions. Form 8938 covers those same accounts plus foreign non-account assets like stock in a foreign company or an interest in a foreign trust.
- Where you file: Form 8938 attaches to your tax return and goes to the IRS. The FBAR is filed separately with the Financial Crimes Enforcement Network, not the IRS.
- Deadline: Form 8938 is due with your tax return, including extensions. The FBAR is due April 15, with an automatic six-month extension to October 15.
Penalties and the Extended Statute of Limitations
Failing to file Form 8938 when required triggers a $10,000 penalty. If you still have not filed 90 days after the IRS mails you a notice, an additional $10,000 penalty accrues for every 30-day period the failure continues, capped at $50,000 in additional penalties.12Office of the Law Revision Counsel. 26 USC 6038D – Information With Respect to Foreign Financial Assets A reasonable cause defense is available, but the statute specifically says that the possibility of a foreign country imposing its own civil or criminal penalties for disclosure does not count as reasonable cause.
The IRS also gets more time to come after you. The normal three-year statute of limitations for assessing additional tax extends to six years if you omit more than $5,000 in income attributable to specified foreign financial assets that should have been reported under Section 6038D.13Office of the Law Revision Counsel. 26 USC 6501 – Limitations on Assessment and Collection For taxpayers who never file Form 8938 at all, the statute on the entire return may not begin to run until the form is filed.
The Streamlined Path Back if You Are Behind
Taxpayers who fell behind on FATCA or FBAR obligations through genuine oversight rather than intentional evasion may qualify for the IRS Streamlined Filing Compliance Procedures.14Internal Revenue Service. Streamlined Filing Compliance Procedures The procedures are available only to individuals (including estates), and you must certify that your failure was non-willful, meaning negligence, inadvertence, or a good-faith misunderstanding of the rules.
You are ineligible if the IRS has already opened a civil examination of any of your returns or if you are under criminal investigation. The program reduces penalties but requires full disclosure going forward, and it is a one-way door: taxpayers who previously filed amended or delinquent returns outside the program can still apply, but prior penalty assessments will not be reversed.