Term · Foreign Bank Account Report (FinCEN Form 114)

FBAR

Published May 7, 2026

Definition

FBAR is a US Treasury filing (FinCEN Form 114) required of US persons whose aggregate foreign financial account holdings exceed $10,000 at any point during the calendar year. Filed annually with FinCEN, separate from the IRS tax return.

FBAR captures information about foreign bank accounts, brokerage accounts, mutual funds, and similar financial accounts where the US person has signature authority or financial interest. The $10,000 aggregate threshold is calculated across all foreign accounts combined, and the highest balance during the year (not the year-end balance) is what counts. A US person with $5,000 in one foreign account and $7,000 in another exceeds the threshold and must file.

FBAR penalties for non-filing are severe — up to $10,000 per non-willful violation per account per year, and substantially higher for willful violations. The IRS Streamlined Compliance Procedures provide a pathway for taxpayers who failed to file due to non-willful conduct to come into compliance with reduced penalties.

FBAR is distinct from FATCA Form 8938 (Statement of Specified Foreign Financial Assets), though the two often apply to the same accounts. FBAR is filed with FinCEN and has a $10,000 threshold; FATCA Form 8938 is filed with the IRS as part of the tax return and has higher thresholds ($50K-$600K depending on filing status and residency). A US person with significant foreign accounts typically needs to file both.

Why this matters for synthetic data

Synthetic households with cross-border or expat scenarios should track foreign account holdings with daily-balance granularity (not just year-end), since the FBAR threshold is high-water-mark-based. The data should include accounts where the US person has signature authority but not financial interest (still triggers FBAR) and joint foreign accounts (each US-person co-owner files separately).

Common pitfalls

Using year-end balance instead of high-water-mark — a $15,000 mid-year balance triggers FBAR even if year-end is $0.
Forgetting signature-authority-only accounts — corporate officers or trustees with signing authority over employer or trust accounts must file FBAR even without financial interest.
Missing the FBAR-FATCA distinction — they are separate filings with different thresholds, agencies, and forms; both may be required.
Not preserving exchange-rate documentation — FBAR balances are reported in USD using year-end exchange rates; documentation matters in case of audit.

Examples

Aggregate threshold across multiple accounts

US person holds €4,000 in a German checking account, £3,500 in a UK ISA, and CHF 4,000 in a Swiss savings account. Approximately $4,400 + $4,400 + $4,500 = $13,300 USD aggregate. Exceeds the $10,000 threshold; FBAR filing required even though no individual account exceeds $10,000.

Frequently asked questions

What counts as a 'foreign financial account'?+

Bank accounts, brokerage accounts, mutual funds, certain insurance contracts with cash value, and similar financial accounts located outside the United States. Real estate, art, and tangible personal property held abroad do NOT count for FBAR (they may count for FATCA Form 8938).

When is FBAR due?+

April 15 of the following year, with an automatic extension to October 15 (no separate extension request required). FBAR is filed electronically through the FinCEN BSA E-Filing system.

Do US citizens living abroad still need to file FBAR?+

Yes. Citizenship-based reporting applies; US citizens and permanent residents must file FBAR regardless of where they reside. Many expats are unaware of this and unintentionally non-compliant; the Streamlined Compliance Procedures specifically address this population.