Portugal's tax residency rules: 183 days in any 12 months, and the habitual home
When Portugal treats you as a tax resident: more than 183 days in any 12-month period, a home kept as your habitual residence, split years, and the US-Portugal treaty tie-breaker.
Updated · Expat Academy · Education, not advice
Portugal's residence tests are short, but both have a twist.
The two tests
- More than 183 days in Portugal in any 12-month period starting or ending in the tax year. The window rolls: an autumn season and the next spring's are counted together.
- A home kept as your habitual residence, on any day of that period, even with fewer days: a home furnished and used as your base, where your life is when you're in Europe.
A split year
Residence starts on the first day you meet a test and ends on your last day in Portugal when you leave. Your first return covers only the resident part of the year.
Evidence of where you live
If your days come close, or you keep a home in Portugal, keep a file: a days log with boarding passes, your US home's deed or lease and bills, your US driver's licence, voter registration and state tax returns, and records of your doctors and accounts at home. A US certificate of residence (Form 6166) can settle most questions quickly.
The treaty tie-breaker
If Portugal and the US both claim you, the US-Portugal treaty decides: permanent home, centre of vital interests, habitual abode, nationality.
A worked example
A couple with Golden Visas spend February to April and October to November in a rented house in Tavira: 150 days in the year, and at most 150 in any 12 months. They rent seasonally, so they keep no home there. Neither test is met. If they stretched the autumn to September through December, the 12 months from September would hold 211 days, and Portugal would treat them as resident from the day they passed 183.
For part-year residents
- Count across the turn of the year. September to December and February to April is more than 183 days in the 12 months from September.
- Prefer seasonal lets if you want to stay clear of the habitual-home test, or keep clear evidence that your owned home isn't your base.
- A Golden Visa changes the immigration limit, not the tax tests.
Answer the questions in the free Portugal Residence Check, and log your seasons in the Residency Day Counter, which does the 12-month count.
See also the Portugal Golden Visa for retirees.
Leaving Portugal
Residence ends on your last day in Portugal when you leave to live elsewhere. File your final Portuguese return for the resident part of that year, update your NIF to a non-resident address (with electronic notifications or a representative), and keep proof of your departure date.
Questions
What is the 183-day rule in Portugal?
You're a Portuguese tax resident if you spend more than 183 days in Portugal in any 12-month period that starts or ends in the tax year. It isn't limited to the calendar year.
Can I be a Portuguese tax resident with fewer than 183 days?
Yes. If you have a home in Portugal in conditions that suggest you intend to keep and live in it as your habitual residence, you can be resident with fewer days.
Does a Golden Visa make me a tax resident of Portugal?
No. It's a residence permit for immigration; tax residence still depends on the 183-day and habitual-home tests.
When does Portuguese tax residence start?
On the first day you meet a test. Portugal splits the year, so income before that day isn't taxed as a resident's.
Go deeper
- P1 Portugal's residence tests Free preview: Portugal makes you tax resident with more than 183 days in any 12-month period, or with a home kept as your habitual residence, whatever the days. Residence starts on the day you arrive, so the year splits.
- P14 Portugal's residence check for seasons: Two Portuguese seasons can add up to more than 183 days in a 12-month window that crosses the new year, and a home kept as your base can make you resident with far fewer days. How to check your plan.
Sources
Education, not advice. This guide explains general rules as of the date above. Rules change every year; confirm your own situation with a qualified adviser in the US and in France.