Expat tax
What this page covers
Expat tax
US expat tax rules follow you even when you move abroad. For many Americans overseas, questions only appear when a familiar asset, like a former home, turns into a rental or is sold and suddenly triggers US reporting and possible tax.
The US looks at your status as a US person, not where the property sits or where you live now. Once a home becomes a rental or investment, the tax story splits into periods of personal use, rental use, and depreciation. When you sell, those periods can leave a taxable tail, even if you think of it as “my old home” and expect most of the gain to be excluded.
Major events such as selling a former home, cashing out investments, or exercising stock options can expose years of accumulated rules at once. Section 121, nonqualified use after 2008, depreciation recapture, and foreign currency effects can all interact, turning one transaction into a detailed reconstruction of your ownership, use, and filing history.
In brief
- For US expats, tax on a home sale is driven by timelines and status. The US applies its rules based on your US person status and looks at ownership and use over the last five years, not just the fact that you once lived in the property or now live abroad.
- Even when the principal residence exclusion applies, parts of the gain can stay taxable. Depreciation deductions and periods of nonqualified use after 2008 can create a permanent taxable slice, and foreign currency movements can change the gain measured in US dollars.
- If you sell because of work, health, or certain unforeseen events, you may qualify for a reduced exclusion instead of losing relief entirely. This can soften the impact for expats whose moves and sales do not fit a perfect two‑out‑of‑five‑year pattern.
What to do
A central feature of US expat tax on real estate is how section 121 interacts with your calendar and your US filing status. The ownership test is met when you owned the home for at least 24 months during the five years before the sale. For a joint return, only one spouse needs to meet this ownership test. The use test looks at periods when the property was your principal residence, so the question becomes whether you can document specific months of ownership and use within that five‑year window.
The exclusion has important limits that often surprise expats who rented out a former home while living abroad. Publication 523 explains that the portion of gain equal to depreciation deductions claimed after May 6, 1997 is not excludable and is subject to recapture. In addition, nonqualified use periods after 2008 can make part of the gain fundamentally non‑excludable. The system effectively remembers when the property was an income‑producing asset and keeps that slice of gain in the taxable column, even if you later move back in and satisfy the two‑year use test.
There is also a pressure valve for imperfect timelines. IRS guidance allows a reduced exclusion when a sale is driven by a change in employment, health, or certain unforeseen circumstances, even if the standard ownership and use requirements are not fully met or the exclusion was used within the prior two years. For expats whose moves, assignments, and forced sales rarely align with an ideal calendar, this reduced exclusion can lower the tax shock, but it still requires careful attention to dates, documentation, and official rules.
What to keep in mind
In practice, US expat tax around capital gains often shows up when the US system reasserts itself after years abroad. An expat may file basic returns for a long time and feel everything is routine, only to discover at sale that a former home, rented out during time overseas, has built up a complex US tax history that now has to be unpacked.
When a rental is converted back to a principal residence and later sold, examples in Publication 523 show how gain is split between nonqualified use and qualifying use. Even if the two‑year use test is met, the nonqualified use portion can remain taxable, and depreciation stays a separate taxable component. The common belief that living there again for two years wipes the slate clean does not hold, because the rules slice ownership into tax segments and preserve a taxable tail.
These dynamics apply whether the home is in the US or abroad. Section 121 focuses on principal residence status and the two‑out‑of‑five‑year tests, not the property’s country. For expats, a foreign sale adds a currency layer: amounts must be reported in US dollars using applicable exchange rate rules. This can change the gain measured for US purposes compared with the story in local currency and can affect how the sale fits into your broader US expat tax picture.