Moving to Portugal from the US — taxes, FATCA and what changes
Americans are moving to Portugal in record numbers, and they face one thing no other nationality does: the US taxes its citizens on worldwide income no matter where they live. Moving to Portugal doesn't end your US filing — you'll file in both countries. Here's the honest 2026 picture (general information, not tax advice).
You still file a US return every year. Citizenship-based taxation means the IRS follows you. The good news: a tax treaty and a totalization agreement between the US and Portugal, plus two tools — the Foreign Tax Credit (FTC) and the Foreign Earned Income Exclusion (FEIE) — stop you being taxed twice on the same income in practice.
FTC — credits the Portuguese tax you pay against your US bill (often wipes it out, since PT rates are higher).
FEIE — lets you exclude a large slice of earned income (~$126k+, indexed) if you meet the residence/presence test.
Reporting is separate from tax: you must file an FBAR if your foreign accounts top $10,000 combined, and often FATCA Form 8938 too — the penalties for missing these are steep.
Portugal taxes you as a resident (183+ days) on worldwide income, files its own IRS, and — importantly — NHR is closed and its replacement IFICI is narrow, so most Americans won't get a special rate. Watch the mismatches: a Roth IRA is tax-free in the US but Portugal may still tax the income inside it, and US mutual funds can create PFIC headaches — get advice before selling or restructuring.
Banking: FATCA makes some Portuguese banks wary of US clients — a few are US-friendly, ask before you rely on one.
Social security: the totalization agreement stops double contributions and lets your US and PT credits count together.
Route: the D7 suits retirees and passive income; the D8 suits remote workers. A US licence counts as an OECD licence: you can usually keep driving on it as a resident without swapping it while it was issued or renewed less than 15 years ago and you are under 60 — confirm with IMT and see driving licence.
The single best money you'll spend is a cross-border US–Portugal accountant who files both sides — this is not the place to DIY. Treat the above as the map; before you file or move investments, get it checked for your situation. If you're also buying, our buying-cost calculator covers the purchase side. (Figures and rules as of 2026 — verify the current position for your case.)
Sources
IRS — US-Portugal Tax Treaty Portal das Finanças Código da Estrada, art. 125 — licences valid in Portugal (PGD Lisboa, consolidated) gov.pt — Trocar carta de condução estrangeira por portuguesaKeep reading
Working for a foreign company while living in Portugal How do I exchange my foreign driving licence — and how long are IMT queues? Swapping your driving licence: the guia, queues and deadlinesWhere are you stuck?
This page gives you the rule. What it cannot give you is your case — your timeline, your documents, your consulate. Tell me where you are and I will tell you what to sort out first.
Guidance, not legal or tax advice — verify your case with official sources.