Topic · US expat tax
Converting Foreign Income: IRS Exchange Rates for Expats
Why a U.S. return is always in dollars, when to use the IRS yearly-average rate versus a spot rate, and why the FBAR uses a different rate entirely.
A U.S. tax return is filed in U.S. dollars, so income, gains and deductions earned in another currency generally have to be translated into USD. There's no single 'official' IRS rate you must use, but the method has to be reasonable and applied consistently — and a few situations point to a specific rate.
Yearly-average rate vs spot rate
The IRS publishes a yearly average exchange rate for many currencies, and it also accepts rates from other reliable sources. As a rough orientation, a yearly-average rate is often used for income earned evenly across the year (like a salary), while a spot rate on a specific date is generally more appropriate for a one-off event such as a sale, a distribution, or a single large receipt.
Which rate tends to fit which situation
Use this as orientation, not a rule for every case — the right choice can depend on the facts:
| Situation | Rate often used | Why |
|---|---|---|
| Salary / wages earned across the year | IRS yearly-average rate | Income accrues evenly, so an average is generally reasonable |
| Sale of property or a single capital gain | Spot rate on the transaction date(s) | A one-off event has a specific date and value |
| A pension or dividend distribution | Spot rate on the date received | Tied to a discrete payment date |
| FBAR maximum account balance | Treasury year-end (Dec-31) rate | FinCEN instructions point to the Treasury rate |
Why consistency matters
- Use a reliable, documented source for each rate and keep a record of it.
- Apply your chosen method consistently across similar items and across years.
- Expect the income translation and the FBAR translation to use different rates by design.
Unsure which exchange rate applies to your foreign income?
The free Tax Risk Check helps you think through USD translation for income versus the FBAR. Atamatax provides preparation support; this is not individualized tax or legal advice.
Atamatax provides tax preparation support and educational resources. This website does not constitute legal or tax advice.