Reporting Foreign Accounts
A US citizen or resident remains subject to US reporting wherever they live. One requirement catches people almost immediately on moving abroad: an annual report of foreign financial accounts, due whenever their combined value passes a low threshold at any point in the year. It is not a tax return, nothing is owed on it, and the penalties for missing it are severe.
- Aggregate, not per account:: The threshold applies to all foreign accounts added together, not to each one.
- Highest balance, not year-end:: It is the maximum value at any point during the year that counts.
- Signature authority counts:: An account you can sign on but do not own can still create a filing duty.
- No tax is owed:: The report is informational. The penalties for not filing are nonetheless significant.
Where the AI summary above gets this wrong
"If you do not owe US tax on foreign income, you do not need to report it."
That's surface-true. Here's what it misses:
- Reporting and taxation are separate obligations — The report is informational and produces no tax. It is required whenever the threshold is crossed, regardless of whether any income arose or any tax is due. Confusing the two is the most common reason it goes unfiled by people who have correctly paid everything they owe.
- The threshold is aggregate and measured at its peak — Four accounts holding $3,000 each cross the threshold together, and all four must be reported. And it is the highest balance at any moment during the year that counts — an account that briefly held the proceeds of a house sale creates the obligation even if it was empty by December.
- Ordinary retirement life abroad creates it easily — A local current account for pension deposits, a savings account for a rental deposit, and an account holding the proceeds of a property sale will cross the threshold without anyone thinking of themselves as having offshore accounts. The word 'foreign' does the work here, not any notion of secrecy.
01 Who has to file and when
The requirement applies to a US person — a citizen, a resident, and certain entities — with a financial interest in or signature authority over financial accounts located outside the United States, where the aggregate value exceeded $10,000 at any point during the calendar year.
The report is filed electronically with the Treasury, separately from the income tax return. It is due with the return, with an automatic extension available.
Living abroad does not change any of this. A US citizen retiring to another country continues to file US tax returns and continues to report foreign accounts, which is the part of moving away that surprises people most.
Shows: how far the combined high balance of foreign accounts exceeds the threshold that triggers a filing requirement — measured on the highest point during the year, not the year-end balance. Ignores: the separate reporting requirement that can apply on the tax return itself, accounts you can sign on but do not own, and non-account foreign assets.
02 What counts as an account
Bank accounts, brokerage accounts, mutual funds and certain other financial accounts held at institutions outside the United States. A foreign pension can count depending on its structure, and so can certain insurance and annuity contracts with a cash value.
Signature authority is enough. Someone who can direct transactions on an elderly parent's account abroad, or on an account belonging to a club or charity, may have a filing obligation without owning a penny of it.
A separate reporting requirement on the tax return itself can apply to specified foreign financial assets, with different thresholds and a different form. The two overlap without being identical, and meeting one does not satisfy the other.
03 Getting it right, and fixing it if not
The practical routine is simple. Once a year, list every account outside the United States, find the highest balance each reached during the year in its own currency, convert at the prescribed rate, and add them up. If the total crosses the threshold, every account is reported.
Penalties for failing to file are significant and are much higher where the failure is treated as wilful. That distinction makes prompt voluntary correction meaningfully different from waiting to be contacted.
Where filings have been missed, procedures exist for coming into compliance, and they are more favourable for someone who comes forward than for someone who is found. Anyone in that position should take professional advice before filing anything — the sequence in which things are filed matters, and it interacts with the state filing position a move abroad leaves behind.
Source: Foreign earned income exclusion
This catches decent, careful people constantly, because nothing about it feels like it applies to them. They have a current account in the country they live in, not an offshore arrangement. But the rule is about location, not intent. If you are a US citizen with any account outside the country, add up the highest balances once a year and file if the total crosses the line. It takes an hour and the downside of not doing it is out of all proportion.
FAQ
Do I have to report foreign accounts if I owe no US tax?
Yes. The report is informational and separate from the tax return. It is required whenever the aggregate value of foreign accounts exceeds the threshold at any point in the year, regardless of tax.
Is the threshold per account or in total?
In total. All foreign accounts are added together, and if the combined maximum during the year exceeds $10,000, every account must be reported.
Does a foreign pension count?
It can, depending on its structure, as can certain insurance and annuity contracts with cash value. Where it is unclear, professional advice is worth taking rather than assuming.
Sources
Regulator references
- Report of Foreign Bank and Financial Accounts · Internal Revenue Service · 2026Who must file, the threshold, and the deadline.Last verified: 2026-09-07
- Foreign earned income exclusion · Internal Revenue Service · 2026The related rules for Americans living abroad and why retirees rarely qualify.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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Jordan Reeves
Founder of Talk Through Wealth. A software engineer for over a decade before turning to retirement planning, Jordan built the projection engine after watching family members get fragmented, country-by-country advice that never reconciled. He writes about retirement the way the engine computes it: month-by-month, lifetime-long, and skeptical of any rule of thumb that hasn't been run through the math.