Portugal — NHR (183-Day Tax Residency)

Summary

Day threshold

183 days

Window

Calendar year (1 Jan – 31 Dec)

Becomes resident on

Day 183

Also triggers

A habitual home on 31 Dec

Authority

Autoridade Tributária

If you spend at least 183 days in Portugal during a calendar year, you become a Portuguese tax resident. That residency is the gateway to registering under the Non-Habitual Resident (NHR) regime and its successor incentive. To stay a non-resident, keep your total days in Portugal below 183 — but note that keeping a habitual home in Portugal can make you resident even below that line.

Who it applies to

This matters most if you are:

• A remote worker, retiree, or investor considering a move to Portugal and hoping to access NHR or its successor regime.
• A frequent traveler spending long stretches in Portugal without a clear tax base elsewhere.
• Someone who keeps a home in Portugal while living or working partly abroad.

It applies to individuals regardless of nationality — Portuguese tax residency is about presence and habitual housing, not citizenship or visa status.

The rule — and why it exists

Portugal treats you as a tax resident in a given year if either of these is true:

• The 183-day test. You are present in Portugal for more than 183 days — counted over any 12-month period that begins or ends in the year — during that calendar year.
• The habitual-home test. On 31 December you hold a home in Portugal in conditions that suggest you intend to keep and occupy it as your habitual residence, even with fewer days.

Why it exists: countries use physical presence and a permanent home as proxies for where your economic life actually sits. Establishing residency is also what unlocks NHR, a deliberate incentive designed to attract new residents by giving them preferential tax treatment for a fixed number of years — provided they were not Portuguese tax residents in the previous five years.

Counting the days

1. 1Add up every day of physical presence in Portugal during the calendar year (1 January to 31 December).
2. 2Any part of a day spent in Portugal generally counts as a full day, including arrival and departure days.
3. 3The count resets at the start of each new calendar year — it is not a permanently rolling window.
4. 4Reaching more than 183 days is enough to establish tax residency for that year.

Separately, holding a habitual home in Portugal on 31 December can establish residency on its own — so the day tally is not the only test to watch.

Examples

Example 1 — resident by days, ready to register

You move to Lisbon in February and stay through the autumn, spending about 250 days in Portugal that year. You have crossed 183 days, so you are a Portuguese tax resident and — if you were not resident in the prior five years — can register for the applicable NHR-type regime.

Example 2 — under 183 days but still resident

You spend only ~120 days in Portugal but keep a furnished apartment there, available to you, and on 31 December it clearly serves as your habitual home. The habitual-home test can make you resident despite being well under 183 days.

Example 3 — deliberately staying non-resident

You visit Portugal for 90 days across several trips and keep no home there. You are below 183 days and have no habitual residence, so you remain a non-resident for that year and are not in scope of NHR.

Exceptions & edge cases

• The classic regime is closed. NHR shut to new entrants from 2024 (with transitional rules). A successor incentive for qualifying professions has replaced it — confirm which regime you can actually access before relying on the old terms.
• Habitual home overrides low day counts. Keeping a home you intend to occupy on 31 December can trigger residency even if you stayed fewer than 183 days.
• Double-taxation treaties. If you are resident in two countries, the relevant treaty tie-breaker (permanent home → centre of vital interests → habitual abode → nationality) assigns a single treaty residence and divides taxing rights.
• The five-year clean period. NHR requires that you were not a Portuguese tax resident in any of the previous five years — returning former residents generally cannot qualify.

Common misconceptions

• "NHR is still open like it used to be." False — the classic regime closed to new entrants from 2024; only a narrower successor remains.
• "Staying under 183 days always keeps me non-resident." Not necessarily — a habitual home in Portugal on 31 December can make you resident anyway.
• "NHR means I pay no tax." It provides preferential treatment on certain income for a limited period — it is not a blanket exemption, and worldwide income is otherwise in scope.
• "Residency and NHR are the same step." They are two steps — first become a tax resident, then separately register for the regime with the Autoridade Tributária.

Frequently asked questions

Sources

• Autoridade Tributária — Register as a Non-Habitual Resident
• Autoridade Tributária — Getting started in Portugal (tax residency)