Moving to Portugal from the UK — how are my taxes and pension treated?
Britons are one of the largest groups moving to Portugal, and the same worry comes up first every time: will I be taxed twice, and what happens to my pension? Here's the honest 2026 picture — general information, not personal tax advice.
You won't be taxed twice. The UK and Portugal have a Double Taxation Convention (in force since 1968). Where both countries could tax the same income, the treaty decides who has the primary right and the other gives a credit — so you don't pay full tax in both places. You usually still have to file in both while you keep ties to each.
When Portugal starts taxing your worldwide income: you become a Portuguese tax resident if you spend 183+ days here in a calendar year, or keep a home you intend to live in. From then, Portugal taxes your worldwide income and you file an annual IRS return.
Most pensions are taxed where you live (Portugal) once resident — including the UK State Pension and private/workplace pensions.
Exception: UK government-service pensions (civil service, armed forces, police, many teaching/NHS roles) stay taxable only in the UK.
NHR is closed to new arrivals and its replacement, IFICI, is narrow — most retirees will not qualify, so budget for Portugal's normal progressive income tax on pensions, not a flat rate.
UK rental income and investments. Rent from a UK property is taxed in the UK first (where the property sits), then declared in Portugal with credit for the UK tax — little or no double tax, but two filings. Watch out for ISAs: they are not tax-free in Portugal — the gains and income inside them are taxable here, so take advice before selling.
Healthcare: if you receive the UK State Pension, the S1 form lets you use Portugal's public health service (SNS) with the cost covered by the UK — apply through the UK's Overseas Healthcare Services around the time you move.
Driving licence: a UK licence counts as an OECD licence, so you can keep driving on it as a resident without an exchange while it was issued or renewed less than 15 years ago and you are under 60; otherwise exchange it within 90 days of taking up residence (confirm your case with IMT).
Social security / NI: the post-Brexit UK–EU protocol coordinates contributions, so time paid in the UK generally still counts.
Order of operations: get your NIF, then choose your route (the D7 suits retirees and passive income; the D8 suits remote workers), register your Portuguese tax residence and file your first IRS.
Cross-border tax is genuinely individual — the gap between a government pension, a SIPP and rental income can change your bill a lot. Treat this as the map, not turn-by-turn: before you file (or sell anything), speak to a cross-border tax adviser — we're happy to connect you with one. 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
UK–Portugal Double Taxation Convention (gov.uk) 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
Moving to Portugal from the US — taxes, FATCA and what changes Retiring in Portugal: which visa, healthcare and tax — the honest version Working for a foreign company while living in PortugalWhere 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.