Is the $10,000 FBAR threshold based on year-end balance or the highest balance during the year?
The highest balance — specifically, the aggregate maximum value of all your foreign financial accounts at any time during the calendar year. Year-end balance is irrelevant to the trigger. A single large transfer passing through for one day in March can create a filing obligation for the whole year, even if every account ended December at zero.
How the test works
- For each foreign account, find its highest balance at any point in the calendar year.
- Convert each maximum to USD using the Treasury's December 31 exchange rate.
- Add them all together.
- If the total exceeds $10,000, you file FinCEN Form 114.
Three precision points people get wrong:
- "Exceeds," not "equals." Exactly $10,000.00 does not trigger the filing; $10,000.01 does.
- Aggregate, not per-account. Five accounts at $2,500 each = $12,500 = file.
- "Foreign" is from the US perspective. For a US person, a Canadian or Mexican account is foreign; a US account is not.
A worked example
Maya, a US citizen in Mexico City, holds three accounts: a Mexican checking account (peak $6,000 in February), a Mexican savings account (peak $5,500 in November), and a Canadian TFSA (peak $4,000 in June). No single account is near $10,000 — but $6,000 + $5,500 + $4,000 = $15,500 aggregate maximum, so she files. If instead her peaks were $4,000 + $3,000 + $2,000 = $9,000, no filing is required — even if year-end balances were higher than the peaks (they can't be, by definition, but the point stands: peaks, not balances).
Frequently asked questions
What counts as a "foreign financial account"?
Bank accounts, securities accounts, and certain other financial accounts held at foreign institutions — including accounts you only have signature authority over (no ownership needed).
I closed the account in February. Still counts?
Yes — if its maximum while open contributed to an aggregate over $10,000, report it with its maximum value and mark it closed.
Sources
- https://www.facebook.com/reel/2059426784667762/
- IRS: FBAR reporting rules (aggregate value at any time during the calendar year) — https://www.irs.gov/newsroom/report-of-foreign-bank-and-financial-accounts-fbar-1
- FinCEN Form 114 instructions — https://bsaefiling.fincen.gov/docs/FinCENFBARHelp.pdf