Portuguese citizenship by birth is possible, and there are several different circumstances in which a child may be granted foreign citizenship.
A child will be granted Portugal citizenship by birth if born in Portugal to foreign parents who meet certain residency requirements, or if at least one parent is a Portuguese citizen, regardless of where the child is born. Children born in Portugal can also automatically acquire citizenship if they would otherwise be stateless.
In this article, we’ll examine Portuguese citizenship by birth and the processes that must be followed by citizens, residents, and foreigners alike to be granted Portuguese citizenship. You’ll also learn more about:
- Children born in Portugal to foreign parents
- Children born abroad to Portuguese parents
- How to apply for Portuguese citizenship by birth
Does Portugal give citizenship by birth?
Yes, Portugal offers citizenship by birth under certain conditions. A child is granted citizenship if born in Portugal to Portuguese parents.
Additionally, if a child is born in Portugal to foreign parents, they may also be eligible for citizenship if at least one parent has legally resided in Portugal for at least one year. Furthermore, children born outside of Portugal to at least one Portuguese parent can also qualify for citizenship.
Under Portuguese law, the rule is simple at first glance: persons born on Portuguese soil are nationals from day one. Yet the statute unpacks several scenarios.
If one of the parents is a legal resident—not necessarily Portuguese—the newborn is still granted citizenship, provided that the parent has lived in the country for at least one year before the child’s birth.
The same privilege also applies to children of Portuguese citizens born abroad, and even to a grandchild; a Portuguese grandparent with an effective connection to Portugal can allow a descendant to claim Portuguese citizenship later in life.
Who can apply for Portuguese citizenship by birth?
Portugal’s citizenship by birth applies if you’re born in Portugal to a Portuguese parent, born abroad to a Portuguese parent serving the state, or in certain cases where a parent was a long-term legal resident in Portugal at the time of your birth.
For those born to non-Portuguese parents in Portugal, specific residency conditions for the parent or the child might apply. Depending on your circumstances and location, you can register the birth and citizenship through the Justice Portal online or at a civil registry office or Portuguese consulate.
You are likely a Portuguese citizen by origin if:
- You were born in Portugal to a Portuguese parent.
- You were born abroad to a Portuguese parent who was serving the Portuguese State.
- You were born in Portugal and at least one parent had lived in Portugal for at least a year before your birth.
When both parents are Portuguese Citizens
If both or at least one parent is Portuguese, things will be easier. When having their birth registered, the child will be entitled to Portuguese citizenship based on the parents’ lineage, place of birth, and nationality status. When both parents are foreigners, acquiring Portugal’s citizenship by birth can be challenging.
Children born in Portugal to foreign parents
In the scenario where both parents are foreigners in Portugal and have lived in the country for less than five years, the child will be granted the citizenship of either or both foreign parents.
The child born in Portugal to foreign parents must still be registered in Portugal, and the mother or father must provide documents that prove their place of birth and their legal residence status. However, the child of foreign parents can apply for Portuguese nationality if:
- The mother or father has resided in Portugal for the last 5 years (with or without a residence permit) or
- The mother or father is legally resident in Portugal or
- The minor has attended at least one year of pre-school, primary, secondary, or vocational education in Portugal.
Children born abroad to Portuguese parents
It is easier to get Portuguese citizenship when born abroad if at least one of the parents has Portuguese nationality. However, no matter where the child is born, the parents still need to register the birth.
This can be done online if the birth took place in the European Union (EU) or in a country outside the EU whose official language is Portuguese, including Macau. However, the online process can only be done if the child is less than a year old. Otherwise, the parents must register the birth at the Portuguese Consulate in the country where they live.
Children born to Portuguese parents outside the EU
Children born to Portuguese parents outside the EU and Portuguese territory who are 18 and over may apply for Portugal’s citizenship by birth. These individuals, though foreign residents of another country, are still eligible to reconnect with the Portuguese community through a citizenship application process handled by Portuguese authorities.
For the citizenship application, applicants must visit the nearest Portuguese Consulate and present all the documents required. This includes a certified copy of the long form of their birth certificate, legalized by an Apostille or the Portuguese Consulate. They must also provide identification documents with a photo and signature, such as passports or ID cards, and a marriage certificate if applicable.
Regarding the Portuguese parent(s), the parents identification documents must be provided and their marriage must be endorsed on the applicant’s birth certificate. If the parents were married abroad and the marriage was not registered in Portugal, the Consulate must complete the registration before citizenship for children born abroad may be granted.
If the parents were unmarried at the time of the applicant’s birth, a statement confirming paternity while the applicant was still a minor must be signed. For children born abroad, the birth certificates of both parents must also be submitted for citizenship.
How to Register a Birth in Portugal
If the child meets (or will meet in the future) the requirements for citizenship, the birth registration is the first step in Portugal’s citizenship by birth.
Assuming the child is born in Portugal, the birth can be registered online by either parent, if the parents are married. In the case where they aren’t married, both parents must register the birth.
You’ll need a Digital Mobile Key or a Citizen Card for online registrations, so if you don’t have that (in the case of many foreigners), the birth must be registered in person.
This can be done at:
- Any Nascer Cidadão (Newborn Citizen) counter located in a maternity clinic or hospital
- Any civil registry office
- At the consular post for your place of residence, if you live abroad
Because nationality is automatic, most families focus on paperwork. The required documents begin with the hospital-issued birth certificate. Parents must secure a translation if any part of it is in another language, then deliver everything to the Conservatória dos Registos Centrais—often shortened in Lisbon to simply “dos Registos.”
Within the same office, foreign-language parents can apply for Portuguese nationality for older minors who missed registration at birth (up to the age of 18). Adults who discover their Portuguese ancestry later may petition as well, though they must show they have been considered legal residents in Portugal for at least 5 years or demonstrate that long-standing connection mentioned above.
The Ministry regularly publishes major changes to nationality rules in the Diário da República, Portugal’s “official newsletter.” Recent amendments clarified that a non-Portuguese parent with a short residence card, asylum status, or even a Portuguese Golden Visa counts as a qualifying resident for newborn nationality purposes—welcome news for many foreign residents.
When the file reaches the clerk’s desk, Portuguese authorities cross-check whether the parents, children, or other people born abroad already hold foreign citizenship. Dual nationality is allowed, so no one must renounce an existing passport to acquire citizenship here. Once approved, the office issues a nationality certificate, updates the civil registry, and notes the change in its next official newsletter.
Required documents
To register a birth online or in person, you must:
- Provide proof of birth in the form of a document issued by the hospital where the child was born
- State the full names of the parents and grandparents
- Indicate the details of the birth and the child, such as the name, which must adhere to certain rules (no more than two given names and four surnames)
- Specify the maternity clinic or hospital where the child was born
- If you are applying for online registration and want to apply for the Citizen’s Card, choose the “yes” option, attach a photo of the baby and proof of birth
- Provide certain details relating to the birth and the household as required by Statistics Portugal (for births in Portugal).
In short, Portugal’s birthright pathways remain broad yet document-driven. Gather the paperwork, mind the translations, and keep an eye on the Diário da República; with those steps, families—whether locals, expats, or investors—can navigate the process confidently and secure the future of their newest citizens.
Citizen Cards for Portuguese Nationals
By law, all Portuguese citizens, whether in the country or abroad, must have a Citizen Card. It is compulsory from the 20th day after birth. If the child has Portugal citizenship, you can apply for a Citizen Card when registering the birth and its free of charge.
This is a crucial step in Portuguese citizenship, as the issuing of a Citizen Card assigns a Civil Identification Number to the child, in addition to:
- Tax Identification Number (NIF)
- Social Security Identification Number (NISS)
- National health service user number (Utente)
How to Apply for Portugal Citizenship by Birth
If the child meets the requirements of being under the age of 18, was born in Portugal, is the child of foreigners and the mother or father has resided (or are residents) in Portugal for the last 5 years, an application for Portugal’s citizenship by birth can be made.
Note that the process and requirements are different from Portugal citizenship by descent.
If you have a representative or a Portugal immigration lawyer, the application can be done online. If you don’t, there are several places where you can do this yourself, including:
- The Civil Registry Conservatory
- At certain Nationality Counters, such as the one at the Central Archive in Porto
- Central Registry Conservatory in Lisbon
- National Support Center for Migrant Integration in Lisbon and Porto
There are several documents that you’ll need for Portugal’s citizenship by birth application. These include a birth certificate and a clean criminal record if the applicant is 17 years or younger.
The most crucial document needed is a letter addressed to the Minister of Justice, written in Portuguese, stating:
- The reason for the Citizenship by Birth application
- Your full name, date of birth and gender
- Your nationality
- Your parents’ names
- Your profession
- Your address
- the country(s) where you have lived after the age of 16
- the number, date, and entity that issued your title or residence permit, passport, or equivalent identification document.
Portuguese Dual Citizenship
Portugal does allow dual citizenship. While the country does not have specific dual nationality agreements, the Portuguese government, in line with Portuguese nationality law, does allow second citizenship with several countries.
To become a Portuguese citizen and, simultaneously, an EU citizen, you do not need to give up your original citizenship. You can discover more in our Portugal Dual Citizenship application guide.
Individuals can maintain ties with their home country, but it is important to note that to gain dual citizenship in Portugal, you must meet certain criteria. These can include living in the country for at least five years as a legal resident (naturalization route), or having Portuguese ancestry (citizenship by descent).
Alternatively, you must have been married, have a valid marriage certificate, or have been in a de facto (non-marital) partnership with a Portuguese national for over three years to meet this residency requirement.
Citizenship for Children of Portuguese Golden Visa Holders
After five years (for now) of being a legal resident, the Portugal Golden Visa holder can apply for Portuguese citizenship. This entitlement is extended to children and follows the same process of providing proof of a Portuguese connection and a birth certificate when applying for citizenship.
The most significant change is that citizenship can only be applied for after seven years for citizens of CPLP and EU countries, and after 10 years for everyone else. For more in-depth information, read our guide on the changes to Portugal’s Nationality Law.
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