The Foreign Account Tax Compliance Act, enacted in 2010 and codified at Internal Revenue Code Sections 1471 through 1474, sets out two parallel sets of FATCA withholding and reporting rules: foreign financial institutions must identify US-held accounts and report them to the IRS, and US taxpayers must separately disclose their foreign financial assets on Form 8938 with their tax return. The law enforces the institutional side with a flat 30% withholding tax on US-source payments to any foreign entity that will not cooperate.
The 30% Withholding Tax and When It Applies
FATCA’s teeth are a 30% withholding tax on certain US-source payments flowing to non-compliant foreign entities. The tax exists not primarily to raise revenue but to make non-compliance expensive enough that foreign institutions choose to participate.
What Counts as a Withholdable Payment
The statute defines a withholdable payment as any US-source fixed or determinable annual or periodical income. That covers interest, dividends, rents, salaries, annuities, and similar recurring payments. The statutory definition also sweeps in gross proceeds from the sale of property that could produce US-source interest or dividends.1Office of the Law Revision Counsel. 26 USC 1473 – Definitions Treasury has repeatedly deferred the implementation date for gross proceeds withholding, so in practice the 30% currently applies only to US-source income payments.
Income effectively connected with a US trade or business is excluded, because that income is already taxed under other provisions.
Who Does the Withholding
The withholding agent — typically the last US entity or compliant FFI in the payment chain before the funds reach the foreign payee — is responsible for pulling out the 30% and remitting it to the IRS. The agent determines each payee’s FATCA status using the W-8 series of IRS forms. Foreign entities use Form W-8BEN-E to certify their Chapter 4 status and claim any treaty benefits.2Internal 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 is provided, the agent must withhold 30%. Withheld funds are reported to the IRS on Form 1042 (the annual withholding tax return) and Form 1042-S (reporting the income and withholding for each foreign payee). FATCA withholding overrides treaty benefits: a Non-Participating FFI that would normally enjoy a reduced treaty rate still faces the full 30%.
Getting Withheld Money Back
Beneficial owners of over-withheld payments can generally claim a credit or refund, but a Non-Participating FFI that is itself the beneficial owner can only recover amounts to the extent it is entitled to a reduced rate under a tax treaty, and it cannot collect interest on that refund.3eCFR. 26 CFR 1.1474-5 – Refunds or Credits Account holders of a Non-Participating FFI who are themselves the beneficial owners may claim refunds directly, but the FFI cannot do so on their behalf. Participating FFIs can use collective refund procedures to claim credits for their account holders.
Who FATCA Covers
FATCA’s institutional obligations fall on two broad categories of non-US entities: Foreign Financial Institutions (FFIs) and Non-Financial Foreign Entities (NFFEs).
Foreign Financial Institutions
The statute defines a financial institution as any entity that accepts deposits in the ordinary course of a banking business, holds financial assets for the account of others as a substantial portion of its business, or is primarily in the business of investing or trading in securities, partnership interests, or commodities. Any such entity organized outside the United States is an FFI.4Office of the Law Revision Counsel. 26 USC 1471 – Withholdable Payments to Foreign Financial Institutions This sweeps in foreign banks, brokerage firms, mutual funds, hedge funds, and insurance companies that issue cash-value policies or annuity contracts.
FFIs are then sorted into three groups. 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 and signals to withholding agents that the institution is cooperating.5Internal Revenue Service. FATCA Foreign Financial Institution Registration A Non-Participating FFI has not entered an agreement with the IRS, so any US-source withholdable payment it receives is hit with the 30% tax.6Internal Revenue Service. Withholding and Reporting Obligations A third group, Deemed-Compliant FFIs, consists of institutions the IRS treats as low-risk; some must still register and obtain a GIIN, while others only self-certify. Small local banks with no accounts exceeding $50,000 and total assets under $50 million are a common example.7eCFR. 26 CFR 1.1471-5 – Definitions Applicable to Section 1471
Active and Passive NFFEs
Any foreign entity that is not an FFI is an 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. Active NFFEs face lighter scrutiny because they represent operating businesses.
A Passive NFFE is essentially a holding structure. It must disclose its substantial US owners — generally anyone with a direct or indirect ownership interest exceeding 10% — to the FFI where it holds accounts.6Internal 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 that entity.
Exempt Beneficial Owners
Foreign governments and their political subdivisions, international organizations like the United Nations, foreign central banks, and certain government-sponsored retirement funds are entirely exempt from FATCA reporting and withholding.
What FFIs Must Report
Before an FFI can report anything, it must systematically review its accounts to figure out which belong to US persons. For new individual accounts, the FFI collects a self-certification of tax residency when the account is opened, along with a valid US Taxpayer Identification Number if the holder is a US person. For existing accounts, the FFI runs its records against a set of US indicia — 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 granted to someone with a US address — and must obtain documentary evidence to “cure” any indicator it finds.8U.S. Department of the Treasury. FATCA Annex I to Model 2 Agreement Accounts whose indicators cannot be resolved are treated as US Reportable Accounts.
For entity accounts, the FFI classifies the entity as a US person, another FFI, or an NFFE. If it is a Passive NFFE, the FFI looks through to identify any controlling US persons and collects the name, address, and TIN of each substantial US owner.
The Information Reported for Each Account
For each account held by a specified US person, the FFI reports the account holder’s name, address, and US TIN; the account number; the year-end balance or value as of December 31; all interest, dividends, and other income paid or credited during the year; and gross proceeds from the sale or redemption of property held in the account. For a Passive NFFE, the FFI reports the same financial details plus the name, address, and TIN of each substantial US owner.
Form 8966 and the IGA Routing
How the data reaches the IRS depends on the FFI’s home country. In countries with a Model 1 intergovernmental agreement, the FFI reports to its own local tax authority, which exchanges the data with the IRS. In countries with a Model 2 IGA or no IGA at all, the FFI reports directly to the IRS using Form 8966, the FATCA Report.9Internal Revenue Service. Instructions for Form 8966 – FATCA Report Reporting is annual, with a filing deadline of March 31 for the preceding calendar year.
More than 100 jurisdictions now have IGAs with the United States, making FATCA a near-global compliance standard. FFIs in either 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 compliant status by checking an FFI’s GIIN against the published IRS list.10Internal Revenue Service. FATCA Registration and FFI List – GIIN Composition Information
What US Taxpayers Must Report: Form 8938
FATCA does not stop at foreign institutions. US taxpayers themselves must report their specified foreign financial assets on Form 8938, filed as an attachment to their annual tax return. The requirement covers foreign bank accounts, foreign-issued securities, interests in foreign entities, and financial accounts maintained at foreign institutions.
Filing Thresholds
Whether you have to file Form 8938 depends on your filing status and where you live.
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 much 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, or FinCEN Form 114) are separate requirements. Filing one does not satisfy the other, and many taxpayers must file both.11Internal Revenue Service. Comparison of Form 8938 and FBAR Requirements The differences matter:
- 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.
- 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.
- Form 8938 attaches to your tax return and goes to the IRS. The FBAR is filed separately with the Financial Crimes Enforcement Network (FinCEN), not the IRS.
- 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 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 a notice, an additional $10,000 penalty accrues for every 30-day period the failure continues, up to a maximum of $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 provides that the possibility of a foreign country imposing its own civil or criminal penalties for disclosure does not count as reasonable cause.
The normal three-year statute of limitations for the IRS to assess additional tax is extended 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 If you fail to file Form 8938 entirely, the statute of limitations on the entire return may not begin to run at all until the form is filed.
Streamlined Filing Compliance Procedures
Taxpayers who fell behind on their FATCA or FBAR obligations through genuine oversight rather than intentional evasion may qualify for the IRS Streamlined Filing Compliance Procedures. The procedures are available only to individuals (including estates), and the taxpayer must certify that the failure was due to non-willful conduct, meaning negligence, inadvertence, or a good-faith misunderstanding of the rules.14Internal Revenue Service. Streamlined Filing Compliance Procedures
You are ineligible if the IRS has already started a civil examination of any of your returns or if you are under criminal investigation. The streamlined track offers a path back into compliance with reduced penalties, but it requires full disclosure going forward. Taxpayers who previously filed amended or delinquent returns outside the program can still apply, though prior penalty assessments will not be reversed.