US Tax Guide for Green Card Holders Living in the UK

Green card holders (permanent residents) living in the UK face unique US tax challenges. As US tax residents, green card holders owe US tax on worldwide income regardless of where they live. The UK's worldwide income taxation and the US-UK tax treaty create additional complexity. FileAbroad helps green card holders in the UK navigate FEIE, FBAR, and the cross-border questions that complicate filing.

Key Tax Issues for Green Card Holders in the UK

• Worldwide US taxation: Green card holders are US tax residents and owe US tax on worldwide income, even if they live in the UK.
• UK tax residency: If you spend more than 183 days in the UK or have your center of vital interests there, you are a UK tax resident. You may owe tax to both countries.
• FEIE: Green card holders can claim FEIE on foreign earned income if they have a foreign tax home and meet the physical presence or bona fide residence test.
• FTC: Green card holders can claim FTC for UK tax paid on income that is also taxed by the US.
• Remittance basis: Non-domiciled UK residents may be able to use the remittance basis (being phased out from April 2025).
• Exit tax risk: If you abandon your green card, you may be subject to the expatriation tax (exit tax) if you meet certain thresholds.
• Totalization agreement: US-UK totalization agreement prevents double social security taxation.

FEIE vs FTC for Green Card Holders in the UK

FTC is often more valuable than FEIE due to high UK tax rates (up to 45% plus National Insurance). FEIE may be better for green card holders in their first years abroad or with income below the FEIE limit.

FBAR & Reporting for Green Card Holders in the UK

UK bank accounts, ISAs, SIPPs, and investment accounts are reportable on FBAR if the aggregate value across all foreign accounts exceeds $10,000.

Common Mistakes Green Card Holders Make in the UK

1. Not filing US tax returns — Green card holders owe US tax on worldwide income regardless of where they live.
2. Not reporting UK accounts and ISAs on FBAR — All foreign accounts are reportable.
3. Not understanding the remittance basis — The rules are changing from April 2025.
4. Not planning for exit tax — Abandoning your green card can trigger the expatriation tax.
5. Not claiming FEIE or FTC — These tools can significantly reduce your US tax.

When to Get Professional Help

You should consider professional help if you have foreign accounts exceeding $10,000, are considering abandoning your green card, or have complex income situations.

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FileAbroad explains U.S. federal tax and U.S. international information-reporting consequences of documented foreign facts. It does not provide foreign-country legal or tax representation, valuation opinions, banking or remittance advice, or advice on what a foreign authority will accept.

Scope statement reviewed 2026-08-30 · FileAbroad product/content owner