Portugal — Citizenship (Naturalisation)

Summary

Residence period

7 years (CPLP/EU) or 10 years (others)

Counting

Periods summed, consecutive or not, within 6, 9 or 12 years

In force

19 May 2026 (Lei Orgânica 1/2026)

Absence guideline

Under 180 days per trip — protects your permit

Basis

Lei 37/81, arts. 6 and 15; Lei 23/2007, art. 85

Run by

Institute of Registries and Notaries (IRN)

To naturalise as a Portuguese citizen you now need 7 years of legal residence if you are a CPLP or EU national, or 10 years otherwise — the rule since Lei Orgânica 1/2026 came into force on 19 May 2026. The nationality law sets no absence cap: it adds up your periods of legal residence, even interrupted ones, inside a 6-, 9- or 12-year span. The absence limit that matters is on your residence permit — a temporary permit can be cancelled after six consecutive months away — so keeping every trip under 180 days protects the years you are counting. Applications are handled by the Institute of Registries and Notaries (IRN).

Who it applies to

This matters most if you are:

• A legal resident of Portugal working towards naturalisation who travels or works abroad for long stretches.
• Someone planning a sabbatical, overseas posting, or extended family stay during your qualifying years.
• A permit holder counting towards the 7- or 10-year mark who wants every year to count.

The residence period depends on nationality: 7 years for nationals of Portuguese-speaking countries and EU citizens, 10 years for others (stateless people: 4 years). If you filed before 19 May 2026, your application is decided under the previous law.

The rule — and why it exists

Article 6(1)(b) of the Nationality Law (Lei 37/81), as amended by Lei Orgânica 1/2026, requires applicants to have resided legally in Portugal for at least seven years (CPLP and EU nationals) or ten years (others). Two other provisions decide how absences play out:

• How the years are counted. Article 15(3) adds up all periods of legal residence, “seguidos ou interpolados” — consecutive or interrupted — provided they fall within a maximum span of 6 years (stateless), 9 years (CPLP/EU) or 12 years (others). Legal residence means holding a valid title, visa or permit under immigration or asylum law.
• What can break a title. Under Article 85(2) of Lei 23/2007, a residence permit can be cancelled when the holder is away without acceptable reasons for six consecutive months or eight interpolated months over a temporary permit's validity — or 24 consecutive months or 30 months within three years on a permanent permit. Lose the permit and the legal residence it supported stops counting.

The 2026 law also tightened the other requirements: knowledge of Portuguese language and culture, history and national symbols; knowledge of citizens' rights and duties and of the political system; a solemn declaration of adherence to democratic principles; no final sentence of effective imprisonment over three years for specified serious crimes; no threat to national security or defence; no UN or EU restrictive measures; and the ability to support yourself. The Ministry of Justice notes that the practical application of several provisions depends on complementary regulation, and the law gave the government 90 days to adapt the Nationality Regulation (Regulamento da Nacionalidade Portuguesa).

Why it exists: naturalisation is meant to recognise genuine, settled ties to the country. The 2026 reform lengthened the residence period but, by summing interrupted periods, it measures accumulated legal residence rather than an unbroken stay.

Counting the days

The 180-day guideline is about the length of a single, uninterrupted trip — the shape of the six-consecutive-months limit on temporary permits. You count the consecutive days you are away from Portugal.

1. 1Start counting from the day you leave Portugal on one trip.
2. 2Add up the consecutive days you remain outside the country without returning.
3. 3Six calendar months is at least 181 days, so returning before day 180 keeps the trip inside the temporary-permit limit.
4. 4Separately, keep a running total: a temporary permit can also be cancelled after eight months away in total over its validity.

Days away do not, by themselves, subtract from the nationality clock — the question is whether your title stays valid. Keep travel records anyway: if AIMA ever questions a long absence, contemporaneous evidence is what protects the permit.

Bounded's counter for this rule does not count the day you leave and ends the six months on the corresponding date (Civil Code art. 279): leaving on 15 January, it turns red on 15 July, or on the last day of the month when that date does not exist.

After you return. Returning does not erase the ground for cancelling the residence permit your application rests on: once an absence has completed six months, the permit can be cancelled, which can break the legal residence you count, so Bounded keeps showing it: if any absence in your history (from the count-from date, if you set one) went over, the card stays red and shows that absence's dates even after you are back. When a new qualifying period starts, set the count-from date to its first day to clear absences that ended before it.

Examples

Example 1 — many short trips, every year counts

Over a year you take several trips abroad — a few weeks here, a month there — totalling well under eight months, and no single trip approaches six months. Your temporary permit is safe, so the whole year counts as legal residence.

Example 2 — one long absence puts the permit at risk

You accept an overseas posting and stay away for eight continuous months (about 240 days) on a temporary permit, without having justified the absence to AIMA. That exceeds six consecutive months, so the permit can be cancelled — and if it is, your legal residence stops counting until you hold a valid title again.

Example 3 — a gap that delays rather than resets

A national of a country outside the EU and the CPLP holds residence permits for four years, leaves Portugal for two years, then returns on a new permit. Under the 2026 rules the four years still count, provided all ten required years fall within a 12-year span — so the gap delays the application by two years rather than restarting the clock.

Exceptions & edge cases

• 180 days is a guideline, not the law. Neither the nationality law nor the immigration law uses a 180-day figure; it is a conservative day count for “six consecutive months”.
• Absences can be justified. Cancellation is discretionary and only applies to absences “without acceptable reasons”. Article 85(3) lets you justify a longer absence to AIMA, normally before you leave, and Article 85(4) bars cancellation if you prove professional, business, cultural or social activity abroad.
• Permanent permits have wider limits. 24 consecutive months or 30 months within three years — see Portugal permanent residence.
• Pending applications. Applications already pending on 19 May 2026 are decided under the Nationality Law as it stood before the amendment.

Always confirm how your own residence history will be counted with the IRN or a qualified adviser — the practical application of parts of the 2026 law depends on complementary regulation.

Common misconceptions

• "Five years is enough." Not for applications filed since 19 May 2026: the period is now 7 years for CPLP and EU nationals and 10 years for others.
• "Any gap resets my residence clock." No — interrupted periods of legal residence are added together, as long as they fall within the 6-, 9- or 12-year span.
• "180 days is written into the nationality law." It is not. It is a safe margin under the six-consecutive-month absence limit on temporary permits.
• "Staying under 180 days is all I need." The permit also has an eight-month total limit, and naturalisation still requires the full residence period, language and civic knowledge, criminal-record, security and self-support requirements.

Frequently asked questions

Sources

• Diário da República — Lei Orgânica n.º 1/2026, de 18 de maio (amending Lei n.º 37/81)
• Diário da República, 1.ª série — Lei Orgânica n.º 1/2026 (PDF; art. 5 repeals art. 15(4), art. 7 application in time)
• Justiça — Lei da Nacionalidade: novas regras entram em vigor a 19 de maio (19 May 2026)
• IRN — Pedir nacionalidade portuguesa
• Diário da República — Lei n.º 23/2007 (consolidated), Artigo 85.º (Cancelamento da autorização de residência)