FBAR: The $10,000 Trap Every Expat Must Understand

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The $10,000 threshold that triggers a foreign bank account report is not $10,000 per account — it is $10,000 across all your foreign accounts combined, on any single day of the year. That difference has cost thousands of Americans who thought they were compliant tens of thousands of dollars in penalties. The filing is called an FBAR — technically FinCEN Form 114, filed electronically with the Financial Crimes Enforcement Network — and it applies to every US citizen and permanent resident with meaningful overseas financial accounts. This guide covers who files, what counts, and what the penalty math looks like after the Supreme Court changed the rules in 2023.

What Is FBAR and Who Must File?

FBAR stands for Report of Foreign Bank and Financial Accounts. The legal authority is the Bank Secrecy Act, codified at 31 USC § 5314, and the implementing regulation is 31 CFR Part 1010. Despite being a Treasury filing, the IRS handles most FBAR enforcement.

You must file if you are a "US person" — US citizen, lawful permanent resident (green card holder), or someone meeting the substantial presence test — and if the aggregate value of your foreign financial accounts exceeded $10,000 at any point during the calendar year. "At any point" means even a single day where the combined value crossed that line requires you to file for the entire year.

US entities also have FBAR obligations. A domestic LLC, partnership, trust, or corporation that has a financial interest in or signature authority over foreign accounts must file, regardless of whether any individual owner separately files. If you hold an overseas bank account through your US LLC, both the LLC and you as a controlling owner may need to file separately.

What Counts as a Reportable Foreign Financial Account?

The FBAR covers more account types than most expats expect. A reportable account is any financial account maintained at a foreign financial institution — meaning a bank, brokerage, investment fund, insurance company, or similar institution located outside the United States.

Accounts That Must Be Reported

Foreign bank accounts — checking, savings, and time deposit accounts held at any foreign bank branch, including accounts at US bank foreign branches (a Chase account held in the UK is foreign).

Foreign brokerage and securities accounts — brokerage accounts, investment portfolios, and securities accounts held at foreign financial institutions. This includes accounts at foreign brokers like Interactive Brokers' non-US entities if the account is held at the foreign counterpart.

Foreign mutual funds — a foreign mutual fund with a pool of assets in a segregated account is reportable. Note that these funds may also qualify as Passive Foreign Investment Companies (PFICs), triggering additional filing requirements under Form 8621. See our guide to PFIC rules for expats for the investment layer.

Foreign retirement accounts — defined contribution plans where you have an individual account balance are generally reportable. This includes Canadian RRSPs, Canadian TFSAs, Mexican AFORE (individual pension accounts), and many workplace pension schemes with individual account balances. Defined benefit pension plans — where you have a promised benefit rather than an account balance — are generally not reportable under FBAR, though the rules remain ambiguous and many practitioners recommend reporting conservatively.

Foreign life insurance with a cash value — life insurance policies that accumulate a cash surrender value at a foreign insurer are reportable. Pure term policies with no savings component are not.

Signature authority accounts — you must report any foreign account over which you have authority to control the disposition of money, even if the money is not yours. A company treasurer who can sign on the firm's Swiss operating account must report it on their personal FBAR, even if they own no equity in the company. This catches many corporate employees, executives, and foundation officers who do not realize they have a personal filing obligation.

What Does Not Count

Direct foreign real estate — owning a property in Portugal or Mexico does not create an FBAR obligation unless you maintain a separate bank account in connection with it. The property itself is not a "foreign financial account."

Cryptocurrency held at foreign exchanges — under FinCEN Notice 2020-2, accounts holding only virtual currency are not currently reportable on FBAR. This could change — FinCEN has signaled intent to propose amendments — but as of mid-2026 pure crypto exchange accounts are not required to be included in the FBAR threshold calculation. However, if the same exchange account also holds USD or other fiat currency, the account may be reportable. See also our crypto tax guide for expats for other reporting requirements that do apply to crypto.

Government social insurance programs — the UK State Pension, Canada Pension Plan, and similar government benefit programs are not foreign financial accounts for FBAR purposes.

FBAR Penalties: The Math After Bittner v. United States

FBAR penalties are among the most aggressive in the tax code, which is why the Supreme Court's February 2023 ruling in Bittner v. United States mattered so much.

Before Bittner, the IRS assessed non-willful penalties per account, per year. Someone with five foreign accounts who failed to file for three years faced up to 15 separate penalty assessments. The Bittner ruling held that the non-willful penalty applies per report — meaning one penalty per year of non-filing, regardless of how many accounts were omitted from that single form.

Violation Type	Penalty Basis	Max Penalty (2025)
Non-willful (per Bittner)	Per report (per year)	$16,536 per year
Willful	Per account, per year	Greater of $165,354 or 50% of account balance
Criminal (willful)	Per conviction	Up to $250,000 fine and/or 5 years imprisonment

The willful penalty amounts are inflation-adjusted annually. For penalties assessed on or after January 17, 2025, the non-willful cap is $16,536 per report and the willful cap is $165,354 per account per year (or 50% of the highest account balance, whichever is greater). A finding of willfulness on five accounts for three years means up to $2.48 million in civil penalties before any criminal exposure.

"Willful" does not require intent to violate the law. Courts have upheld willfulness findings where a taxpayer ignored FBAR boxes on their tax return questionnaire, failed to read their tax software's foreign account prompts, or signed returns that mentioned FBAR requirements without disclosing accounts. The IRS has a lower bar than most people expect.

FBAR vs. Form 8938: Two Separate Requirements

FBAR and Form 8938 (FATCA's Statement of Specified Foreign Financial Assets) are separate filing requirements with separate thresholds. Filing one does not satisfy the other.

Feature	FBAR (FinCEN 114)	Form 8938 (FATCA)
Filed with	FinCEN (BSA E-Filing)	IRS (attached to Form 1040)
Filing threshold (abroad)	$10,000 aggregate any day	$200,000 year-end or $300,000 any day
Filing threshold (US resident)	$10,000 aggregate any day	$50,000 year-end or $75,000 any day
Penalty for non-filing	Up to $16,536/report (non-willful)	$10,000 initial + $10,000/month (up to $50,000)
Statute of limitations	6 years from due date	3 years (or open indefinitely if 25%+ income omitted)

Many expats only need to file FBAR because they are below the Form 8938 threshold, but both are possible obligations. The assets covered also differ: Form 8938 includes foreign partnership interests and foreign-issued notes that FBAR does not; FBAR includes signature authority accounts that Form 8938 does not. The full picture of expat financial reporting is covered in the US expat banking and taxes guide.

8 Filing Mistakes That Lead to Penalties

1. Treating the threshold as per-account. The $10,000 limit applies to the aggregate of all foreign accounts on any single day. Three accounts of $4,000 each that peak at $12,001 total on any one day require filing.
2. Ignoring signature authority accounts. If you control a foreign company, nonprofit, or employer's bank account — even without owning it — that account counts toward your aggregate and may need to be listed. Many employees of international organizations are in violation without knowing it.
3. Forgetting sub-accounts. Some foreign brokerages hold client cash in a separate "cash sub-account" alongside the investment account. Both must be reported individually, even if they share a parent account number.
4. Missing the automatic extension. The FBAR is due April 15, with an automatic extension to October 15. No form is required to claim the extension — it applies automatically. Taxpayers who file their US return on extension often assume the FBAR is similarly deferred; it is, but only to October 15 and only automatically.
5. Not reporting during low-balance years. If your account crossed $10,000 in aggregate on even one day, you must file for that year. Having a low year-end balance does not remove the obligation.
6. Assuming FATCA/Form 8938 replaces FBAR. It does not. Each filing has its own legal authority, its own threshold, and its own penalty regime. Filing Form 8938 with your tax return does not satisfy the FBAR obligation.
7. Omitting foreign retirement accounts. Canadian RRSPs and TFSAs, Mexican AFORE accounts, and defined contribution workplace pensions with individual balances are reportable. Many expats who worked briefly in Canada or the EU retain small balances in these plans and never report them.
8. Not reporting a jointly held account. If you have joint ownership of a foreign account with a non-US spouse or foreign national, you must report your interest in that account. The foreign spouse or co-owner has no US filing obligation, but the US person does, for the full account balance (not just their share).

If You Are Late: Amnesty Options

The IRS has several programs for taxpayers who missed FBAR filings without willful intent.

Streamlined Foreign Offshore Procedures (SFOP) — for US persons who are tax non-compliant and who were physically outside the US for at least 330 full days in any one of the last three years. Under SFOP, you file three years of amended returns, six years of delinquent FBARs, and pay a 5% offshore penalty on the highest aggregate foreign account balance across the six-year period. No FBAR or FATCA penalties beyond that 5% are assessed. This is the most favorable program available.

Streamlined Domestic Offshore Procedures (SDOP) — for US-resident taxpayers who were not outside the US for the qualifying period. The process is the same (3 years returns, 6 years FBARs) but the offshore penalty rate is also 5% and is calculated differently. No FBAR-specific penalties are assessed under this program either.

Delinquent FBAR Submission Procedures — for taxpayers who have no unreported income (all income was properly reported on prior returns) but simply never filed FBARs. You file the late FBARs with a brief explanation. If the income was properly reported and you have not been contacted by the IRS, penalties may be waived entirely under these procedures. This is the simplest path for people whose only error was paperwork, not income.

FBAR Filing Checklist

1. List every foreign financial institution where you held an account at any point during the year — bank, brokerage, retirement, insurance.
2. For each account, find the highest balance on any single day during the year (not the year-end balance).
3. Sum the highest daily balances across all accounts. If the total exceeds $10,000, you must file.
4. Include any accounts where you have signature or other authority, even without ownership.
5. File FinCEN Form 114 electronically at the BSA E-Filing System by April 15 (or October 15 if using the automatic extension).
6. Convert all foreign currency balances to USD using the Treasury's Fiscal Service year-end exchange rates.
7. Separately evaluate whether Form 8938 is also required and, if so, file it with your tax return.
8. Keep records of account statements for at least six years — the FBAR statute of limitations runs for six years from the filing due date.

Charles Schwab offers international brokerage and banking accounts that are explicitly designed for US citizens living abroad, including compliance-friendly structures that reduce the complexity of FBAR reporting for your US-side accounts. Accounts held at US institutions are domestic accounts and do not require FBAR disclosure.

Conclusion

FBAR is one of the most mechanically simple filings in the US tax system — one form, filed online, once a year — but the aggregate-threshold rule, the signature-authority trap, and the multi-year penalty exposure catch more expats than expected. The Bittner ruling reduced the worst-case non-willful penalty dramatically, but willful violations still carry life-altering consequences.

For most expats with straightforward overseas bank accounts and an income tax professional who knows their situation, FBAR compliance is not burdensome. The problem is the people who do not know they need to file — or who have been quietly non-compliant for several years without realizing it. If that describes your situation, the streamlined programs remain available before the IRS makes contact, and acting early is always the right move.

Sources checked: FinCEN FBAR page, IRS FBAR guidance, FinCEN Notice 2020-2 (virtual currency), and BDO/KPMG analysis of Bittner v. United States (February 2023). Penalty amounts are inflation-adjusted; confirm current figures at fincen.gov before filing.

Disclaimer: This article is for informational purposes only and does not constitute legal or tax advice. FBAR requirements are fact-specific. Consult a qualified US tax professional before acting on this information.