A FATCA letter is your bank asking you to confirm whether you are a U.S. taxpayer. It is a documentation request, not an accusation and not an IRS notice. What matters is what happens next. Confirming U.S. status may make your account reportable under FATCA. That information is generally reported annually, and gaps in your past U.S. filings may become visible.
This page covers which form the bank wants, how long you have, what the IRS actually receives, the current penalties for unreported foreign accounts, and the compliance programs still open in 2026. The legal and penalty figures on this page are drawn from IRS guidance, federal statutes, regulations, and controlling case law, reviewed as of August 2026.
A FATCA letter is a written request from a non-U.S. financial institution asking you to certify your tax residency, usually by signing a form. Banks may describe it as a FATCA self-certification, a tax residency declaration, or part of a broader Know Your Customer process. The terminology varies by institution and country, and a Know Your Customer review covers more ground than the FATCA certification itself.
Because U.S. law generally imposes a 30% withholding tax on withholdable payments, U.S.-source income and certain related proceeds, made to foreign financial institutions that fail to report their U.S. account holders. Your bank is protecting itself, not investigating you.
The mechanism is set forth in 26 U.S.C. § 1471(a), enacted as part of the HIRE Act of 2010. A withholding agent must deduct 30% of any withholdable payment made to a foreign financial institution that does not meet the reporting requirements. For a bank with any meaningful exposure to U.S. markets, that cost is not survivable as a business matter, which is why more than a hundred jurisdictions signed intergovernmental agreements, and their banks now collect this paperwork.
One correction worth making, because it appears on a lot of law firm websites: FATCA does not lock a non-compliant bank out of the U.S. financial system. It taxes the bank 30% on U.S.-source income. The practical effect is similar. The legal statement is different.
Banks look for U.S. indicia in your file. Depending on the bank’s procedures and the applicable FATCA rules, one or more of these can lead to a request for additional documentation:
Indicia are a screening signal. Plenty of people who receive these letters are not U.S. taxpayers at all.
Specified United States persons, which is a wider group than citizens and green card holders. Under § 1471(d)(1), a reportable U.S. account is one held by a specified U.S. person or a U.S.-owned foreign entity.
Tracing the definitions through § 7701(a)(30) and § 7701(b)(1)(A), that includes U.S. citizens, lawful permanent residents, and anyone who is a U.S. tax resident under the substantial presence test. Certain visa holders who have never held a green card can nevertheless become U.S. persons for tax purposes under the substantial presence test.
There is a floor. Under 26 CFR § 1.1471-5(a)(4)(i), a bank may exclude an individual’s depository account from FATCA reporting if the holder’s aggregate depository balances at that institution remain at or below $50,000.
No. Returning a signed W-9 to your bank is a customer documentation step. It is not a filing with the IRS, and it does not open an examination.
What follows is slower and more mechanical. Your bank reports your name, address, taxpayer identification number, account number, balance, and income to its own tax authority or to the IRS, depending on which intergovernmental agreement model its country signed. That data flows on an annual cycle and lands in an IRS database where it can be matched against your returns. The exposure comes from the match, not from the signature. Understand the compliance options for your prior filings before you respond, so the match finds nothing inconsistent to flag.
U.S. persons generally provide Form W-9 when a U.S. taxpayer identification certification is required. Foreign individuals generally provide Form W-8BEN, and foreign entities provide Form W-8BEN-E.
| Your status | The form the bank generally wants |
|---|---|
| U.S. citizen, including one who has lived abroad for decades | Form W-9 |
| Lawful permanent resident, meaning a green card holder | Form W-9 |
| U.S. tax resident under the substantial presence test | Form W-9 |
| Individual who is not a U.S. person | Form W-8BEN |
| Entity that is not a U.S. person | Form W-8BEN-E |
Two practical points. First, many banks in intergovernmental agreement countries use their own self-certification form rather than an IRS form, and the agreements permit that. Second, some banks send a combined FATCA and Common Reporting Standard self-certification that asks for every country where you are tax resident, not only whether you are American. Read which one you have before you sign.
Signing a W-8BEN when you are a U.S. person is a false certification made under penalty of perjury. A citizen who has lived in Germany for thirty years and never filed a U.S. return is still a U.S. person, and still sends the W-9. A knowingly false certification can create potential criminal exposure in addition to the underlying tax compliance problem.
Most banks ask for documents within a few weeks, commonly 30 days, then send one or two reminders. There is no universal deadline, because the deadline is the bank’s, not the government’s.
If you cannot meet the bank’s deadline, ask in writing, before the deadline passes, whether it will grant an extension, and say you are gathering documents. The bank’s deadline and any IRS deadline are unrelated, and meeting one does nothing for the other.
Depending on the bank’s agreement and the applicable intergovernmental agreement, the bank may classify you as a recalcitrant or undocumented account holder and report you anyway, this time with incomplete information. That is the worst combination available: the IRS receives your data with a flag on it.
The bank may also restrict the account, apply withholding, or close it. Closing the account does not mean the funds are forfeited, though the return process depends on the bank and jurisdiction. Losing banking access in your country of residence is the real cost, and for people living abroad it is a serious one.
Often both. They are separate obligations with separate thresholds, separate destinations, and separate penalties, and filing one does nothing to satisfy the other.
| Question | FBAR, FinCEN Form 114 | Form 8938 |
|---|---|---|
| Who receives it | FinCEN, though the IRS examines and assesses the penalties | The IRS |
| How you file | Electronically through the BSA E-Filing System, separately from your tax return | Attached to your income tax return |
| What triggers it | More than $10,000 aggregate across all foreign financial accounts at any point in the year | Specified foreign financial assets above the thresholds in the next table |
| Deadline | April 15, with an automatic extension to October 15 that you do not have to request | The due date of your tax return, extensions included |
| Authority | 31 U.S.C. 5314; 31 CFR 1010.350 | 26 U.S.C. 6038D |
Form 8938 thresholds turn on where you live and how you file. Each row is met if either figure is exceeded.
| Filer | Value on the last day of the year | Value at any time during the year |
|---|---|---|
| Unmarried, living in the United States | More than $50,000 | More than $75,000 |
| Married filing jointly, living in the United States | More than $100,000 | More than $150,000 |
| Unmarried, living abroad | More than $200,000 | More than $300,000 |
| Married filing jointly, living abroad | More than $400,000 | More than $600,000 |
| Married filing separately, living in the United States | More than $50,000 | More than $75,000 |
| Married filing separately, living abroad | More than $200,000 | More than $300,000 |
For Form 8938 purposes, the higher foreign-resident thresholds generally apply if you are a bona fide resident of a foreign country or were present in a foreign country for at least 330 full days during a consecutive 12-month period. The IRS explains the full test in its Form 8938 filing requirements, and our own breakdown of the FBAR filing threshold walks through how the two forms interact.
They are assessed per year, and the willful figures are large enough to exceed the account itself. These amounts are inflation-adjusted annually, and the ones below are current as of August 2026.
| Failure | Current maximum | Authority |
|---|---|---|
| FBAR, non-willful | $16,536 per annual report | 31 U.S.C. 5321(a)(5)(B); 31 CFR 1010.821 |
| FBAR, willful | The greater of $165,353 or 50% of the account balance at the time of the violation, per account, per year | 31 U.S.C. 5321(a)(5)(C) and (D) |
| Form 8938 not filed | $10,000, plus $10,000 for each 30-day period beginning 90 days after IRS notice, capped at $50,000 in continuation penalties, for a $60,000 maximum per year | 26 U.S.C. 6038D(d) |
| Understatement attributable to an undisclosed foreign financial asset | 40% of the underpayment, double the ordinary 20% accuracy-related penalty | 26 U.S.C. 6662(j) |
| Willful FBAR violation, criminal | Fines and up to five years imprisonment | 31 U.S.C. 5322 |
The statutory figures in the FBAR statute read $10,000 and $100,000. Those numbers have not been the operative caps for years. The Federal Civil Penalties Inflation Adjustment Act raises them annually, and the current table sits at 31 CFR 1010.821. Any source quoting $10,000 or $12,921 as the non-willful maximum is out of date.
Per report. The Supreme Court settled this in Bittner v. United States, 598 U.S. 85 (2023), holding that the non-willful maximum “accrues on a per-report, not a per-account, basis.”
The difference is enormous. Mr. Bittner had been assessed $2.72 million on 272 unreported accounts. The Court reversed. Someone with twelve foreign accounts and five unfiled years faces five penalties, not sixty.
Willful penalties work differently. The statute itself ties the willful penalty to each account, not each report, so it remains per account, per year, at the greater of $165,353 or half the balance.
This distinction is the single biggest driver of exposure in a foreign account case, and it is the reason willfulness is what a tax attorney fights about.
Longer than three years, and in one common scenario the return never closes at all.
Under 26 U.S.C. § 6501(e)(1)(A)(ii), the assessment period stretches to six years when a taxpayer omits more than $5,000 of income attributable to a foreign financial asset. The statute applies that rule without regard to the Form 8938 dollar threshold, so a taxpayer well under $50,000 in assets can still land in a six-year window.
Section 6501(c)(8) goes further. Where a required international information return such as Form 8938, 5471, 3520, or 8865 was never filed, the assessment period for the return does not expire until three years after the IRS receives that information. Absent reasonable cause, that holds the entire return open, not just the foreign item. An unfiled Form 8938 from 2014 can leave 2014 open today. That provision, more than any penalty figure, is why coming forward is usually the cheaper path.
Several compliance paths are open as of August 2026. Which one fits depends almost entirely on whether your conduct was willful.
| Option | Who it fits | What you file | Cost |
|---|---|---|---|
| Streamlined Foreign Offshore Procedures | Non-willful conduct, and you meet the non-residency test | Three years of returns, six years of FBARs, Form 14653 | No miscellaneous offshore penalty, and no failure-to-file or failure-to-pay penalties |
| Streamlined Domestic Offshore Procedures | Non-willful conduct, and you live in the United States | Three years of amended returns, six years of FBARs, Form 14654 | 5% of the highest year-end aggregate value of the non-compliant assets across the covered period |
| Late FBAR filing | You reported and paid tax on the income and simply missed the FBAR | The late FBARs through BSA E-Filing, with a stated reason for filing late | No penalty if you qualify and the IRS has not contacted you |
| Delinquent international information return procedures | You missed forms such as 5471, 3520, 3520-A, or 8865 | The returns through normal filing procedures, with a reasonable cause statement | Penalties may be assessed before the reasonable cause statement is read |
| Voluntary Disclosure Practice | Willful conduct, or realistic criminal exposure | Form 14457 preclearance, then the full application | The highest cost, and the principal formal route for addressing potential criminal exposure. |
Three details matter when calculating the 5% Streamlined Domestic penalty. It is based on year-end values, not the highest balance reached at any point during the year as with the FBAR reporting threshold. The calculation uses the single highest aggregate year-end value across the covered six-year FBAR period and three-year tax return period, which overlap rather than creating nine separate years. Assets that were properly reported, along with their related income for that year, are generally excluded from the penalty base for that year.
The non-residency test for the foreign track has two prongs, and the second is often omitted in online summaries. A U.S. citizen must have had no U.S. abode and have been physically outside the United States for at least 330 full days in one of the last three years. Having 330 days abroad does not automatically qualify you if you kept a home in Michigan and your U.S. abode stayed there.
The IRS publishes the current terms for the Streamlined Filing Compliance Procedures, the domestic track, and the foreign track. Our own guide to the IRS streamlined filing compliance procedures covers eligibility in depth, and our page on writing an SDOP or SFOP statement of facts covers the certification narrative, which is the part these submissions are won and lost on.
No. The 2014 OVDP closed on September 28, 2018. The IRS announced the closure in IR-2018-52.
What replaced it is the IRS Criminal Investigation Voluntary Disclosure Practice, entered through Form 14457. Preclearance comes first, then the full application within 45 days.
Treat any page still offering OVDP as a live option, or quoting its 27.5% offshore penalty, as eight years out of date. The Voluntary Disclosure Practice is also under active revision: the IRS opened a comment period in December 2025 on substantially new terms, which closed in March 2026. Final terms had not been published as of August 2026, and the IRS has said revised procedures would take effect six months after publication.
Correct it with the bank promptly and in writing, and get advice before you do.
A W-8BEN filed by a U.S. person is a false certification, and the correction is a document the government may read later. Sequencing matters here: a person in this position frequently has a compliance problem underneath the paperwork problem, and the order in which you fix the two affects which programs remain open to you. Certifying non-willfulness under Streamlined after signing a false W-8BEN is a materially harder argument, and it is one you want made carefully rather than quickly.
You cure the indicia. Return the W-8BEN with documentation that rebuts whatever the bank flagged.
Which document depends on the trigger. If the bank flagged a U.S. place of birth, it may require documentation establishing that you are not a U.S. citizen, such as a Certificate of Loss of Nationality where one applies, or a written explanation of why you never acquired or have since relinquished citizenship, along with a non-U.S. passport. An abandoned green card is answered with the filed Form I-407. A stale U.S. address or phone number is answered with current residence documentation.
One trap deserves naming. A green card holder who moved abroad and simply let the card lapse, without filing Form I-407 or triggering an administrative or judicial determination, generally remains a U.S. tax resident. People in this position often believe their U.S. obligations ended years ago. They did not.
Then the bank’s request is generally straightforward: complete the requested certification, return it, keep a copy, and move on.
Confirm three things before you file the letter away: that your foreign accounts appear on your FBARs for every year the aggregate crossed $10,000, that Form 8938 was attached to your return for every year you crossed the threshold, and that the income from those accounts was reported. Prior-year FBARs are filed through the BSA E-Filing System, and the IRS sets out the late-filing steps on its FBAR page. If all three hold, the data the bank sends will match what the IRS already has.
The letter itself is simple. What sits underneath it usually is not, and the decisions you make in the first few weeks determine which compliance options stay open.
Ayar Law handles foreign asset disclosure and FBAR matters. Call (248) 262-3400 to request a case review, or contact us through our website.
This page is general information about U.S. foreign account reporting. It is not legal advice, and reading it does not create an attorney-client relationship. Penalty amounts are adjusted for inflation annually, and program terms change. Whether any option is available to you depends on the facts of your case, and prior results do not predict future outcomes. Speak with a licensed tax attorney about your own situation before responding to a FATCA letter or making any disclosure to the IRS.
