This article on Portuguese citizenship covers the residency requirement, the language and civic tests, when the clock starts, and who is protected by the transitional rules. The law changed in May 2026 and the change is substantial, so anything published before that date is out of date.

What changed

Portugal's revised Nationality Law, Lei Organica n.º 1/2026, entered into force on 19 May 2026. It amended Lei n.º 37/81, the Nationality Law, which was republished in full alongside it.

Before the change, the residency requirement was five years for everyone. After it:

10 years of legal residence for most foreign nationals
7 years for EU citizens and nationals of Portuguese-speaking countries, the CPLP, which includes Brazil, Angola, Mozambique, Cape Verde, Guinea-Bissau, São Tomé and Príncipe and Timor-Leste

The law also added two assessments that did not exist before: an A2-level Portuguese language test and a civic knowledge assessment.

Verified 28 August 2026.

When the clock starts

This is the detail that costs people the most time, and it is widely misunderstood.

The residency clock starts when AIMA issues your residence permit. It does not start when you submit your application, and it does not start when you arrive in Portugal.

AIMA backlogs have been substantial. The gap between applying for a permit and holding one has run to many months in some cases. That gap is dead time as far as the citizenship clock is concerned.

In practice this means the real span between arriving in Portugal and holding a passport is longer than the headline number. For a CPLP national on the 7 year rule, allow eight to nine years once you account for permit issuance and for the assessment of the citizenship application itself.

Who is protected by the old rules

Article 7 of the new law contains the transitional provision, and its wording is precise.

Administrative procedures that were pending on the date the law entered into force continue to be assessed under the previous version of the Nationality Law, with the five year requirement.

Pending means formally submitted. If you filed your citizenship application on or before 18 May 2026, the old five year rule applies to your case.

Meeting the old requirements without having filed does not count. If you had five years of legal residence on 18 May 2026 but had not yet submitted your application, the new rules apply to you in full. There is no grandfathering for eligibility, only for filed applications.

This distinction has been contested. A petition before the Assembleia da República has argued that the provision leaves several groups unprotected, including holders of an approved manifestação de interesse who were still waiting for a residence permit, and people affected by administrative delay attributable to the state. The Constitutional Court has separately observed, in a related judgment, that two applicants who filed at the same moment can receive decisions at very different times for reasons outside their control.

None of that has changed the law as it stands. If your situation depends on the transitional rule, take legal advice rather than assuming a favourable reading.

The requirements

Beyond the residency period, an applicant for naturalisation must:

Be of legal age, or emancipated, under Portuguese law
Have legally resided in Portugal for the required period
Demonstrate knowledge of Portuguese at A2 level
Pass the civic knowledge assessment
Not have been convicted of a crime carrying a prison sentence of three years or more under Portuguese law
Not present a danger or threat to national security or defence

The A2 language test

A2 is a basic level. It covers everyday exchanges: introducing yourself, describing your background, handling routine transactions, understanding simple written notices. It is not fluency and it is not conversational ease under pressure.

The US Foreign Service Institute classifies Portuguese as a Category I language for English speakers, the same group as Spanish, French and Italian, requiring 600 to 750 hours of classroom instruction to reach professional working proficiency. A2 sits well below that. Most people reach it within a year of consistent study.

The test is usually taken through CIPLE, the Certificado Inicial de Português Língua Estrangeira, or through an accredited Portuguese course. Nationals of Portuguese-speaking countries are generally exempt.

The civic knowledge assessment

This is new with the 2026 law. It covers the fundamental rights and duties in the Portuguese Constitution and the basic structure of the state. Detailed regulation of its format has been developing since the law entered into force, so confirm the current requirement before you prepare.

Permanent residency is not citizenship

People conflate these two and the difference is worth being clear about.

Permanent residency is available after five years of legal residence. It lets you live and work in Portugal without renewing temporary permits and without meeting income conditions. It does not give you a Portuguese passport, it does not give you the vote in national elections, and it does not give you the right to live in another EU country.

Citizenship gives you a Portuguese passport, full political rights, and the right to live and work anywhere in the EU.

The five year permanent residency route was not changed by the 2026 law. Only the citizenship timeline moved. For many people, permanent residency at five years is the practical goal and citizenship is a later and optional step.

Other routes to citizenship

Naturalisation through residence is the most common route but it is not the only one. Portuguese law also recognises citizenship through descent, through marriage or a recognised de facto union of more than three years with a Portuguese national, and through adoption by a Portuguese national.

The 2026 law changed several of these too, including the rules on citizenship by birth in Portugal to foreign parents, where a longer period of parental legal residence is now required. It also closed the Sephardic descent route.

If your claim runs through family rather than through your own residence, the rules above do not describe your case. Take advice specific to it.

Dual citizenship

Portugal permits dual citizenship. It does not require you to renounce your existing nationality.

Whether your home country permits it is a separate question governed by that country's law, not Portugal's. Some countries require renunciation, some tax their citizens regardless of residence, and some do both. Check your own position before you apply.

A note on timing

Nationality law in Portugal has been amended repeatedly, and the 2026 version followed an earlier attempt that was blocked in part by the Constitutional Court. Further amendment is plausible.

The figures on this page carry their source and the date they were last verified. If you are planning around a citizenship timeline, verify the current position with an immigration lawyer before making decisions that depend on it.