Marrying a Portuguese citizen does not automatically make you Portuguese. However, after a qualifying period of marriage, a foreign spouse may be able to apply for Portuguese nationality — even if the couple lives outside Portugal.
Portugal citizenship by marriage is therefore an important route for international couples, particularly because applicants are not generally required to relocate to Portugal before applying.
Here is what you need to know about eligibility, connection to Portugal, documents and the application process.
Who Can Apply for Portugal Citizenship by Marriage?
Foreign nationals who are married to a Portuguese citizen for more than 3 years can apply for Portuguese citizenship by marriage.
The key point is that three years of marriage creates eligibility to apply. It does not necessarily mean that citizenship will automatically be granted after three years.
Portugal also recognizes certain de facto partnerships, known as união de facto. A foreign national who has lived in a legally recognized de facto union with a Portuguese citizen for more than three years may also have a route to nationality. In these cases, however, judicial recognition of the partnership is generally required.
Unlike citizenship through residence, there is no general requirement for the foreign spouse to have lived in Portugal for a specific number of years before applying.
Does the Marriage Need to Be Registered in Portugal?
Yes. This is particularly important for couples who married outside Portugal.
A marriage celebrated in the United States, UK, Canada, Australia or another foreign country normally needs to be transcribed into the Portuguese civil registry before the citizenship application can proceed.
This effectively incorporates the foreign marriage into the Portuguese civil registration system.
For example, an American citizen who married a Portuguese citizen in New York may have a perfectly valid US marriage certificate. However, the couple will generally need to register that marriage in Portugal before proceeding with the nationality application.
Do You Need to Prove a Connection to Portugal?
This is one of the most important aspects of Portugal citizenship by marriage.
Portuguese nationality law allows authorities to consider whether an applicant has an effective connection to the Portuguese national community.
The circumstances of each application matter. Relevant connections can include living in Portugal, speaking Portuguese, having close Portuguese family connections or demonstrating other meaningful links with the country.
There are also important protections under the current law. In particular, opposition based on the absence of an effective connection to Portugal does not apply in the same way when the marriage or recognized partnership has lasted more than six years or when the couple has children together who hold Portuguese nationality.
This distinction means that someone applying shortly after completing three years of marriage may have a different application profile from someone who has been married to a Portuguese citizen for ten years.
Anyone considering this route should therefore look beyond the basic three-year eligibility rule and assess their individual circumstances carefully. A broader overview of the different routes to Portuguese citizenship can also help determine which pathway is most appropriate.
What Documents Are Usually Required?
The precise documentation depends on the applicant's circumstances, but the process normally requires the applicant's birth certificate, identification documents, details of the Portuguese spouse's civil registration, the Portuguese marriage registration and criminal record certificates.
Foreign documents may need to be legalized or apostilled and, depending on the language in which they were issued, translated into Portuguese.
Applicants may also need to provide evidence supporting their connection with Portugal when this is relevant to the case.
Document preparation is particularly important because missing, incorrectly legalized or inconsistent records can lead to requests for additional information and further delays.
Can You Apply While Overseas?
Yes.” One of the main advantages of Portuguese citizenship through marriage is that applicants do not necessarily have to live in Portugal.
For instance, a couple residing in the US could potentially finalize the marriage registration and then submit a nationality application without relocating to Portugal.
Applications can be made to the relevant Portuguese authorities, which include Portuguese consulates and civil registry services. Applications can also be submitted online by a lawyer or solicitor authorized to use Portugal's online nationality platform.
The government fee for an adult nationality acquisition application through marriage is currently €250.
How Long Does Portuguese Citizenship by Marriage Take?
Portuguese nationality applications are not immediate. Processing times vary considerably depending on the registry handling the application, the applicant's circumstances and whether additional documents or clarifications are requested.
Applicants should therefore distinguish between eligibility and processing time. Becoming eligible after three years of marriage does not mean that a Portuguese passport can be obtained immediately after the third anniversary.
The nationality application must first be submitted, reviewed and approved. Once Portuguese nationality has been granted and registered, the new citizen can apply for a Portuguese Citizen Card and subsequently a passport.
A Portuguese passport provides extensive international mobility as well as the rights associated with Portuguese and EU citizenship. Those researching the practical benefits can also review the countries accessible with a Portuguese passport and its visa-free travel options.
Does Portugal Allow Dual Citizenship?
Dual and multiple citizenship is generally allowed in Portugal.
This means it is not common for Portugal to require a person who gains Portuguese nationality through marriage to give up their existing one.
But the rules of the applicant’s other country also have to be considered. Some countries restrict or do not recognize dual citizenship, so applicants should check the consequences under their existing nationality law before proceeding.
Do I get automatic Portuguese citizenship by marriage?
Nope. Marriage creates a legal pathway to citizenship, not automatic citizenship itself.
The foreign spouse shall be required to make a formal declaration of the will to acquire the Portuguese nationality, comply with the legal requirements in force and conclude the nationality procedure.
For couples married abroad, registering the marriage in Portugal is often the first practical step. From there, the applicant should assess the duration of the marriage, their connection with Portugal where relevant, criminal-record requirements and the supporting documentation needed for the application.
For qualifying couples, Portugal citizenship by marriage can provide a direct route to Portuguese nationality without requiring the foreign spouse to first spend many years living in Portugal.