Who Can Apply for Portuguese Citizenship in 2026?

Portugal’s nationality rules changed significantly in May 2026, changing who qualifies for citizenship and how long many foreign residents must live legally in the country before applying. Under the new law, ordinary naturalization generally requires 7 years of legal residence for EU and Portuguese-speaking-country nationals and 10 years for other nationals.

But residence is only one route. Children and grandchildren of Portuguese citizens, spouses of Portuguese nationals, certain people born in Portugal, adopted children and other qualifying applicants may have separate routes to Portuguese nationality.

Who can apply for Portuguese citizenship?

As of October 2026, the Portuguese government recognizes several main routes to nationality.

The official Justiça.gov.pt nationality guide organizes applications according to factors including birthplace, Portuguese family connections, residence, marriage and previous Portuguese nationality.

People with a Portuguese parent

A person born outside Portugal can apply for Portuguese nationality if their mother or father was Portuguese at the time of their birth.

The official Justice portal states that eligible applicants can be considered Portuguese from birth by registering their birth in Portugal or declaring that they want Portuguese nationality.

This is a nationality-by-descent route and is therefore different from ordinary residence-based naturalization.

Grandchildren of Portuguese citizens

People with a Portuguese-origin grandparent can also have a direct route to nationality.

Under the current rules, the applicant must generally have a Portuguese-origin grandmother or grandfather who has not lost Portuguese nationality, declare that they want Portuguese nationality and demonstrate a qualifying connection to the Portuguese community.

The official Justice guidance says knowledge of the Portuguese language can establish this connection, while applicants must also satisfy statutory criminal and security requirements.

People married to Portuguese citizens

A foreign national who has been married to a Portuguese citizen for more than three years can apply for nationality.

The same basic three-year threshold applies to a person who has lived in a de facto partnership with a Portuguese citizen for more than three years, provided the partnership is recognized by a Portuguese court.

Additional evidence of a connection to the Portuguese community may be required depending on the applicant’s circumstances.

Certain people born in Portugal

Being born in Portugal does not automatically make every child of foreign parents Portuguese.

However, the 2026 Nationality Law provides nationality by origin for certain people born in Portugal, including cases where a foreign-born child has a parent who was also born in Portugal and was resident there at the time of birth.

The law also provides a route where a child is born in Portugal and, at the time of birth, one parent has been legally resident in Portugal for at least five years, subject to the statutory conditions.

Children born in Portugal to foreign parents

There is also a specific route for minors born in Portugal to foreign parents.

Under the amended law, naturalization can be available when, among other conditions, one parent has legally lived in Portugal for at least five years and the child is enrolled in and regularly attending compulsory education where applicable.

This is a separate category from ordinary adult naturalization.

Long-term legal residents

For many immigrants, the most important change in 2026 concerns naturalization based on legal residence.

The new Organic Law No. 1/2026, which entered into force on May 19, 2026, establishes:

• 7 years of legal residence for nationals of Portuguese official-language countries;
• 7 years for citizens of European Union member states;
• 10 years for nationals of other countries.

Applicants must also satisfy additional legal conditions, including knowledge of Portuguese language and culture, Portuguese history and national symbols, fundamental rights and duties and the organization of the Portuguese state.

The law also requires applicants to meet specified criminal, security and financial-support conditions.

Stateless people

The 2026 law provides a separate naturalization route for stateless people who have legally resided in Portugal for at least four years.

They must also meet the applicable language, culture, civic, criminal and security requirements established by the law.

The five-year rule: who is still protected?

One of the most important details for people already in the citizenship process is the transition rule.

Organic Law No. 1/2026 states that administrative nationality procedures pending on May 19, 2026 remain subject to the previous version of the Nationality Law.

That means the new 7-year and 10-year thresholds do not automatically apply to every person who had already entered a qualifying nationality procedure before the law changed.

For new applicants, however, the current law is the key reference.

Other routes still available

Portuguese nationality law contains additional categories beyond the most common routes.

The official Justice guide also identifies routes for people who:

• Were adopted by Portuguese citizens;
• Previously held Portuguese nationality and later lost it;
• Are the parent of a Portuguese-origin child and meet the specific statutory requirements;
• Have provided relevant services to the Portuguese state or Portuguese community;
• Are Timorese citizens covered by specific nationality provisions; or
• Fall into other special categories established by the Nationality Law.

The correct route therefore depends on the applicant’s individual circumstances rather than simply the number of years they have lived in Portugal.

What applicants should check now

Anyone considering an application in 2026 should first identify which category applies.

Check these points before applying:

• Portuguese parent or grandparent?
• Born in Portugal?
• Married to or in a qualifying partnership with a Portuguese citizen for more than 3 years?
• How many years of qualifying legal residence do you have?
• Are you an EU or Portuguese official-language-country national?
• Can you meet the language, culture and civic requirements?
• Do any criminal or security restrictions apply?
• Was your nationality procedure already pending on May 19, 2026?

The Instituto dos Registos e do Notariado (IRN) is the government body responsible for nationality registration and processing, while the applicable legal requirements are set out in the Nationality Law.

The bottom line

Portugal still offers several routes to citizenship in 2026, but the rules are no longer accurately described by simply saying that anyone can apply after five years.

For new residence-based naturalization applicants, the key threshold is now 7 years for EU and Portuguese official-language-country nationals and 10 years for other nationals, with additional language, civic, security and financial requirements.

At the same time, Portuguese children and grandchildren, qualifying spouses, certain people born in Portugal, adopted children and applicants in other special categories can qualify under different provisions.

For anyone planning to apply, the most important first step is therefore to determine which nationality route applies to their personal circumstances — and, particularly for older cases, whether their procedure was already pending when the new law took effect on May 19, 2026.