Portugal Tax Residency Rules: The 183-Day Test
183-day threshold
How the 183-day rule works in Portugal
Portugal applies a 183 day calendar year test. Having a habitual residence also triggers it.
Calendar year (January to December). This means your day count resets every January 1. Days from the previous year do not carry over.
If you exceed 183 days, Portugal may tax your worldwide income as a tax resident. The exact consequences depend on your personal situation, any applicable tax treaties, and the type of income involved.
How the count works
Portugal sets two main routes into tax residency. The first is the headline 183 days in a calendar year, consecutive or not. The second is having a dwelling available to you on 31 December under circumstances that suggest you intend to keep it as a habitual residence. Family ties to Portuguese residents can also weigh in as a residency factor on top of those two.
What counts as a day
A day spent in Portugal for any part of it counts, including arrival and departure days. The 183 day threshold is a calendar year total rather than a continuous stay.
Beyond the day count
The habitual residence test can pull you into residency on its own. Keeping a Portuguese dwelling on 31 December that signals an intention to stay is enough, even if you spent fewer than 183 days in the country during the year. With under 183 days and no Portuguese home, the default is usually non resident.
Special tax regimes
The Non-Habitual Resident (NHR) regime closed to new applicants in 2024. Its successor, sometimes called NHR 2.0 and formally IFICI, runs along similar lines for up to 10 years but only for qualifying tax residents from 2024 onward who work in specific scientific, technical, and other listed roles.
Tax treaties
Portugal has tax treaties with most major economies, including the US, UK, Canada, Brazil, and every EU member. The standard OECD tiebreaker applies in dual residence cases.
Frequently asked questions
Is the NHR regime still available?
Not for new applicants. The original NHR closed at the end of 2023. A narrower successor regime (IFICI) launched for tax residents from 2024 onward and is restricted to people working in qualifying scientific, technical, and other specified roles.
Can I be resident in Portugal with fewer than 183 days?
Yes. If you keep a habitual residence in Portugal that suggests an intention to stay, you can be Portuguese tax resident on that basis alone. The 183 day rule is just one of the two main routes in.
How does Portugal treat Schengen 90/180?
Schengen 90/180 is a visa rule that sits entirely separately from tax residency. EU and Schengen citizens are not subject to it. Non EU travellers without a residence permit are capped at 90 days of total Schengen Area presence in any rolling 180 day window.
Official source: https://info.portaldasfinancas.gov.pt/
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