The United States is one of the few countries that imposes tax based on citizenship rather than residency. This means that U.S. expats are required to file annual tax returns regardless of where they live. Fortunately, the IRS provides several mechanisms to prevent you from paying tax twice on the same income.
The Foreign Earned Income Exclusion (FEIE)
The FEIE allows you to exclude a significant portion of your foreign earnings from U.S. taxation. For the tax year 2026, the maximum exclusion amount has adjusted for inflation. To qualify, you must pass either the Physical Presence Test (being outside the U.S. for 330 full days in a 12-month period) or the Bona Fide Residence Test.
Foreign Tax Credit (FTC) and Foreign Housing Exclusion
If you pay income tax in your host country, the FTC lets you claim a dollar-for-dollar credit against your U.S. tax liability. Additionally, the Foreign Housing Exclusion allows you to deduct qualifying foreign housing expenses (rent, utilities) that exceed a base threshold.
Navigating these rules requires careful calculation. Choosing the wrong mechanism can lock you out of other benefits, so strategic planning is essential to optimize your global tax footprint.