Foreign bank account reporting in the US comes down to one number. The $10,000 FBAR threshold isn’t per account. It’s the combined total across every foreign account you have, checked at any single point during the year, not your balance on December 31st. Four accounts holding $3,000 each add up to $12,000 in aggregate exposure, and you’re required to file, even though not one of those accounts individually looks reportable. A single account that briefly touched $10,001 for one day crosses the threshold for the entire year, even if a wire transfer caused the spike.
That’s the mechanic that actually determines whether you need to file. If you’ve opened a local bank account, a savings account for your kids’ school fees, or a second account for rent in your new country, this is the number that matters, not any one account’s balance on its own.
Foreign bank account reporting: who actually has to file
Here’s the rule, straight from FinCEN, the Treasury unit that administers this: “A United States person that has a financial interest in or signature authority over foreign financial accounts must file an FBAR if the aggregate value of the foreign financial accounts exceeds $10,000 at any time during the calendar year.”
“United States person” is broader than “US resident.” It covers US citizens and US tax residents wherever they actually live, plus certain entities such as corporations, partnerships, LLCs, trusts, and estates. If you’re a US citizen who moved abroad years ago and haven’t set foot in the country since, you’re still a United States person for this purpose. Moving away doesn’t switch the obligation off.
“Financial interest or signature authority” means ownership isn’t the only trigger. Signature authority alone can create a filing obligation, even if none of the money is yours, for instance if you can sign on your employer’s local operating account or a joint account you don’t personally fund.
“Aggregate value… at any time during the calendar year” is the part worth reading twice. Add up every foreign account you have a financial interest in or signature authority over, on the single highest day of the year across all of them combined, and check that total against $10,000. It doesn’t matter that no individual account crossed the line. It doesn’t matter what your balance was on any other day. One high-water mark, summed across everything, is the entire test.
This catches a specific group of people off guard: anyone who has just become a “United States person” rather than always having been one. If you moved to the US on a treaty investor visa and spend enough time in the country to meet the IRS’s substantial presence test, or if you’ve just received a green card through marriage, you become a United States person for tax purposes from that point forward, and FBAR applies to you the same as it applies to someone born in Ohio. The accounts you kept open back home when you moved are exactly what this rule is checking for: the ones that feel like “foreign” accounts only from the US side of things. It’s an easy thing to miss in the middle of an immigration process that’s already asking for a lot of paperwork.
One category deserves a specific caveat rather than a blanket answer: foreign retirement or pension accounts. Some have special treatment under FBAR rules and some don’t, and getting this wrong is a common, genuine mistake. If a foreign pension is part of your picture, this is a question for a CPA or enrolled agent who specifically handles FBAR, not something a general article should try to resolve for you.
How and where you actually file it
The FBAR isn’t part of your tax return. It’s Financial Crimes Enforcement Network Form 114, filed electronically through FinCEN’s BSA E-Filing System, a separate system from anything the IRS runs. You can file it yourself without registering in advance. If you’re using a CPA or enrolled agent to file on your behalf, they have to register with the system as a filing institution first.
The deadline, and the automatic extension almost nobody expects
The FBAR is due April 15th, following the calendar year you’re reporting. That part is unremarkable; it lines up with the regular US tax deadline.
What’s different from most US tax deadlines: if you miss April 15th, the FBAR is automatically extended to October 15th, for everyone, with no request or form. That’s worth knowing before April 16th, not discovering in a panic that day.
FBAR and FATCA are not the same filing, even though people conflate them constantly
FBAR vs FATCA confusion is common. Foreign bank account reporting under the FBAR and FATCA’s Form 8938 sound like the same job, and they often apply to the same accounts. Plenty of people who file one assume it covers the other. It doesn’t.
They go to different agencies entirely. FBAR goes to FinCEN, through the separate e-filing system described above. Form 8938 goes to the IRS, attached to your regular Form 1040.
They also use different thresholds. FBAR is one flat number, $10,000 aggregate, at any point in the year, regardless of your filing status or where you live. Form 8938’s threshold moves depending on both your filing status and your residency, and the gap is substantial for anyone living abroad:
- US resident, filing single: over $50,000 on the last day of the year, or over $75,000 at any point
- US resident, married filing jointly: over $100,000 / $150,000
- US citizen living abroad, filing single: over $200,000 / $300,000
- US citizen living abroad, married filing jointly: over $400,000 / $600,000
(Married filing separately uses the same figures as filing single. Check the IRS’s own comparison guidance for your exact situation rather than assuming one of the four above applies.)
The part that catches people out: crossing one threshold doesn’t excuse you from the other. If your accounts clear both the FBAR aggregate and your specific Form 8938 threshold, you file both, separately, to two different places. Filing your tax return with Form 8938 attached does not also satisfy your FBAR obligation, and filing an FBAR does not satisfy Form 8938 if you owe it. They’re related rules built around the same underlying concern, Americans holding money abroad, but they are not interchangeable paperwork.
Just become a US person through a visa or a marriage-based green card? See what the physical move itself would cost, separate from anything on this page.
What happens if you don’t file
The penalty structure for foreign bank account reporting splits sharply along one question: was the failure to file an honest mistake, or a knowing one?
Non-willful covers the genuine, good-faith miss: you didn’t know the rule existed, or you didn’t realize your accounts had crossed the aggregate threshold. The civil penalty is currently capped at $16,536 (FinCEN’s January 2025 inflation adjustment, still the current figure in October 2026). And here’s the detail worth knowing if you’re catching up on multiple accounts: following a 2023 US Supreme Court decision, Bittner v. United States, that penalty is assessed per FBAR report, not per account. Someone who failed to report five separate accounts on one year’s form faces one non-willful violation for that year, not five. Before that ruling, the government had argued for exactly the opposite reading, and the difference between the two is enormous if you have several accounts.
Willful, meaning a knowing or reckless failure, is a different order of exposure entirely. The civil penalty can reach the greater of $165,353 or 50% of the account balance at the time of the violation, generally assessed per account, not per report. Genuinely willful cases can also carry criminal exposure in the most serious circumstances, though that’s a rare outcome reserved for deliberate concealment, not the realistic risk facing someone who simply didn’t know the rule existed.
If you’ve just realized you should have been filing and haven’t been, it’s worth knowing that FinCEN and the IRS both maintain delinquent-filing and voluntary-disclosure procedures specifically for this situation. The IRS says that if it hasn’t contacted you about a late FBAR and you’re not under investigation, you should file late FBARs as soon as possible to keep potential penalties to a minimum, and that it asserts penalties based on the facts and circumstances. Which procedure fits your situation, and how many years back you need to go, are questions for a CPA or enrolled agent who handles FBAR catch-up filings, not a general article.
Keep your records for five years, not just this year’s filing
Filing on time isn’t the end of the obligation. You’re required to keep records for each reportable account for five years from the FBAR due date: the account name, the account number, the foreign bank’s name and address, the type of account, and the maximum value it held during the year. There’s no mandated format. A set of bank statements satisfies the requirement on its own, and so does a copy of the FBAR itself if it captures that detail. The one exception is signature-only authority over an employer’s account: if that’s the only reason you filed, the employer is responsible for keeping those records, not you.
It’s a low-effort habit worth building the first year you file rather than reconstructing later. Save the statements that cover your account’s peak balance for the year, in a folder you’ll actually be able to find again, and you’ve done the whole requirement.
Where this stops being a DIY question
Filing a straightforward FBAR for a couple of ordinary foreign bank accounts is something most people can do themselves through the e-filing system, without paying anyone. Where it gets more complicated, and where paying for professional advice is worth it: foreign pension or retirement accounts of uncertain status, multiple years of missed filings that need catching up, any account held jointly with someone who isn’t your spouse, or any situation where willfulness could plausibly be argued either way. Those are the moments a licensed CPA or enrolled agent earns their fee.
Handling the FBAR side? We handle the move.
Compliance is a CPA’s job. If you’re also relocating to or from the US, we can price out what that part costs.
Related reading: More on US immigration and tax for expats
Frequently asked questions
Do I have to file an FBAR if each account is under $10,000?
Yes, if the combined total of all your foreign accounts exceeds $10,000 at any point during the year. The threshold is aggregate across every account you have a financial interest in or signature authority over, not a per-account limit.
What form do I use to file an FBAR?
FinCEN Form 114, filed electronically through FinCEN’s BSA E-Filing System. It is not filed with your federal tax return and cannot be filed on paper under normal circumstances.
When is the FBAR due?
For foreign bank account reporting, the FBAR deadline is April 15th following the calendar year you’re reporting, with an automatic extension to October 15th. No request or form is needed for the extension; it applies to every filer automatically.
Is FBAR the same as FATCA?
No. FBAR is filed with FinCEN using Form 114; FATCA’s equivalent, Form 8938, is filed with the IRS attached to your Form 1040. They have different thresholds: FBAR is a flat $10,000 aggregate, while Form 8938’s threshold depends on your filing status and whether you live in the US or abroad. You may need to file both.
What’s the penalty for not filing an FBAR?
The FBAR penalty, non-willful category, is currently capped at $16,536 for a genuine, good-faith mistake, assessed per report rather than per account. Willful failures carry a much higher penalty, the greater of $165,353 or 50% of the account balance, plus rare criminal exposure in deliberate cases. If you’ve just discovered you should have been filing, FinCEN and the IRS both offer delinquent-filing procedures for coming forward voluntarily.
Sources
- FinCEN, Report of Foreign Bank and Financial Accounts
- IRS, Report of Foreign Bank and Financial Accounts (FBAR), page last updated 30 July 2026
- Supreme Court of the United States, Bittner v. United States, 598 U.S. 85, decided 28 February 2023
- Federal Register, FinCEN Inflation Adjustment of Civil Monetary Penalties, effective 17 January 2025
- Electronic Code of Federal Regulations, 31 CFR 1010.821, Penalty adjustment and table, still listing the January 2025 amounts when checked on 9 October 2026
- IRS, Comparison of Form 8938 and FBAR requirements, page last reviewed 19 September 2026
All sources accessed 4 September 2026 and re-checked on 9 October 2026. Penalty maximums are adjusted for inflation annually; the figures here are FinCEN’s January 2025 amounts, which were still the current table on 9 October 2026, but confirm the current figures before assuming a specific number applies to your situation.
