How to Register for the SNS in Portugal (2026): User Number, Health Centre & Family Doctor
Moving to Portugal means dealing with a few important administrative steps, and registering with the Portuguese healthcare system is one of them. For expats, the process can be confusing because there is an important distinction between getting a Portuguese SNS user number (Número Nacional de Utente) and actually registering with a local health centre (centro de saúde).
The good news is that the process has become more straightforward in 2026. Foreign residents can obtain their SNS number through the Portuguese public healthcare system, and a new government service introduced in September 2026 allows eligible foreigners with a Portuguese address to request their NIF, NISS and SNS user number together in a single application.
This guide explains how to register for the SNS in Portugal, who can register, what documents you need, how to find your local health centre and what happens with a family doctor.
What Is the SNS in Portugal?
The Serviço Nacional de Saúde (SNS) is Portugal’s public healthcare system. It provides access to primary healthcare, hospital services, nursing and a range of other healthcare services through public facilities across the country.
For people moving to Portugal, one of the first things to understand is that having an SNS number and being registered with a health centre are not exactly the same thing.
Your Número Nacional de Utente (NNU), commonly called your Número de Utente, is your unique national user number within the Portuguese healthcare system. It is assigned when you are registered in the Registo Nacional de Utentes (RNU), the national database used to identify and register SNS users.
Once you have an appropriate RNU registration, you can register with a local primary healthcare centre. This is where you can access services such as general consultations, nursing and other primary care services.
The distinction matters because having an SNS number does not automatically mean that you are registered with a local health centre or that you have a family doctor.
Who Can Register for the SNS?
Portugal’s SNS is not restricted to Portuguese citizens. Under the current rules, SNS beneficiaries include Portuguese citizens as well as people living or temporarily staying in Portugal who are nationals of EU countries or equivalent countries, third-country nationals, stateless persons, international protection applicants and migrants, including people whose immigration situation may not yet be regularised, subject to the applicable legal rules.
For foreign residents, however, the type and completeness of your registration in the RNU can affect how your healthcare costs are covered.
For example, a foreign citizen with permanent residence in Portugal and a valid residence authorisation can have an updated registration in the RNU. Foreign citizens without a valid residence authorisation may instead have a registration classified as “in progress” or “incomplete”, depending on the information available.
This is one reason why expats should keep their identification, residence and contact information up to date with the SNS.
How to Register for the SNS?
Step 1: Get Your Portuguese SNS Number
If you are a foreign citizen, your SNS number is normally assigned when you first contact a public healthcare unit, such as a health centre or public hospital. The Portuguese government states that foreign citizens receive their user number when they first attend a public SNS healthcare unit.
There is also an important new option in 2026.
A new way to request NIF, NISS and SNS number together
As of 17 September 2026, foreign citizens who have a Portuguese address and meet certain eligibility conditions can request three identification numbers at the same time:
- NIF — Portuguese Tax Identification Number
- NISS — Social Security Identification Number
- SNS user number — National Health User Number
The combined service is currently available through 12 Espaços Cidadão. It applies to foreign citizens with a Portuguese address who do not have a Portuguese Citizen Card and who either have applied for or obtained residence authorisation, are EU nationals, have applied for international protection, or have refugee/international protection status.
This can be particularly useful for newly arrived expats because these three numbers are often needed for different parts of settling in Portugal. If you do not meet the requirements for the combined service, the numbers must be requested separately.
What Documents Do You Need?
The exact information required depends on your nationality, residence status and age, but the RNU requires identification and personal information to create and maintain your record. For an adult foreign resident, the information can include:
- Full name
- Sex
- Date of birth
- Nationality
- Country of birth
- Identification document and document number
- Portuguese NIF
- Full residential address
- Residence authorisation information, where applicable
The current RNU rules specify that the NIF is not mandatory for foreign citizens under 18, while residence-authorisation information is also subject to specific rules for minors.
Step 2: Register With Your Local Health Centre
Once you have your SNS number and your RNU information is sufficiently complete, you can register with a centro de saúde.
The Portuguese government recommends registering with the health centre serving your area of residence. Health centres provide primary healthcare services including medical consultations, family medicine, nursing and other local services such as nutrition, psychology, oral health and social support.
Under the current rules, registration in primary healthcare requires an updated RNU registration (or an updated non-resident registration for eligible Portuguese citizens living abroad). Registration takes place at a health centre belonging to a Unidade Local de Saúde (ULS).
For foreign nationals, the government currently states that a person with foreign nationality can register at a health centre if they have authorisation of residence in Portugal.
Step 3: Ask About a Family Doctor
One of the most common questions from expats is whether registering with the SNS automatically gives you a family doctor (médico de família). It does not necessarily happen immediately.
Once you are registered with primary healthcare, you become eligible for a family health team. Assignment to a specific family doctor depends on available places within the relevant health unit.
The current rules also prioritise certain households when assigning a family doctor, including families with pregnant patients, people with multimorbidity or chronic disease, and children up to 12 years old.
This means that you can be properly registered with the SNS and still not have a named family doctor. That does not mean you lose access to primary healthcare. The ERS states that people without an assigned family doctor still have the right to receive healthcare from a primary-care unit, within the applicable rules and clinically appropriate timeframes.
What If You Don’t Have a Family Doctor?
Not having a family doctor is relatively common in Portugal, particularly in areas where demand exceeds the number of available places. If you are registered with primary healthcare but do not yet have a family doctor, you can still contact your health centre for appropriate care.
The current rules also allow a patient to request a family doctor when vacancies become available. Families are generally encouraged to be registered together where possible, so members of the same household can preferably be assigned to the same doctor.
You can also choose not to be registered with a family doctor and later request assignment if you change your mind.
Can You Use the SNS Without Registering at a Health Centre?
Yes. This is another distinction that is often misunderstood. The ERS states that a person who is not registered with primary healthcare can still make an occasional contact with a health unit if they need medical or nursing care. This does not automatically create a new primary-care registration.
Similarly, someone who is already registered at one health unit can, in certain circumstances, receive care from another unit for an acute or urgent situation without registering there permanently. So you do not need to wait for a family doctor before you can use the public healthcare system.
Does Having an SNS Number Mean Healthcare Is Free?
Not necessarily. This is one of the most important points for expats. The Portuguese government explicitly states that being assigned an SNS user number does not, by itself, guarantee that the SNS will assume the cost of your healthcare.
The ERS also explains that the type and completeness of a foreign citizen’s RNU registration can affect financial responsibility for healthcare.
For example, where a foreign citizen does not have a valid residence authorisation, the rules around access and financial responsibility can be different. In certain circumstances, a declaration from the local parish council (Junta de Freguesia) confirming residence in Portugal for more than 90 days can be relevant to access to urgent and vital care with financial responsibility assumed by the SNS.
This is why it is important not to treat the SNS number simply as a “free healthcare card”. Your residence status, registration details and the type of healthcare you are accessing can all matter.
How Long Does SNS Registration Take?
There is no single nationwide processing time that applies to every situation. If you are simply being assigned a Número de Utente when you first contact an SNS facility, the number can be created as part of that contact.
The more complicated part can be getting your RNU record fully updated and registering with a local health centre, particularly where documentation or residence information is missing.
If your RNU record is initially classified as “in progress”, the current rules provide a maximum period of 180 days for the required information to be completed. The SNS can contact you using the contact information you provided to request missing information. If the required information is still not provided after that period, the record can become classified as “incomplete”.
For that reason, make sure your phone number, email and address are accurate.
Can You Use SNS24 After Registering?
Yes. Once registered in the RNU, users can access information about their identification and, where applicable, their primary healthcare registration through the SNS24 portal and app. Users can also update their telephone number and email address through SNS24.
SNS24 is useful for managing your interaction with the public healthcare system and accessing digital healthcare services. It is worth setting it up once your SNS registration is active rather than waiting until you actually need medical assistance.
What About Children?
Children have some specific rules. For example, the current RNU rules state that a foreign minor does not need a residence authorisation document or NIF to have an updated RNU registration before reaching 18, subject to the applicable age-specific rules. After turning 18, there is an additional period to regularise the relevant information.
Families moving to Portugal should therefore register children separately rather than assuming that a parent’s SNS registration automatically covers the rest of the household.
SNS Registration Checklist for Expats
Before visiting the SNS or your local health centre, it is useful to have:
- Passport or national ID
- Portuguese NIF
- Portuguese address
- Residence permit or relevant residence documentation, if applicable
- SNS user number, if already assigned
- Portuguese phone number and email
- Any documents relating to your immigration status
If you are eligible for the new combined service, you may be able to request your NIF, NISS and SNS number together at one of the currently participating Espaços Cidadão.
FAQ
Do foreigners need an SNS number in Portugal?
Foreign citizens who need to access the Portuguese public healthcare system can be registered in the RNU and receive a Número Nacional de Utente. For foreign citizens, the number is generally assigned when they first contact an SNS public healthcare unit.
Can I get an SNS number before receiving my residence permit?
The rules allow foreign citizens to be registered in the RNU in different circumstances, and the type of registration depends on the information and documentation available. However, having an SNS number does not by itself guarantee that the SNS will assume healthcare costs.
Do I automatically get a family doctor?
No. Registration with primary healthcare makes you eligible for a family health team, but assignment to a specific family doctor depends on available vacancies.
Can I use the SNS without a family doctor?
Yes. Not having an assigned family doctor does not mean you cannot receive care from a primary healthcare unit.
Can I register at any health centre?
You should normally register with the health centre serving your area of residence. The Portuguese government recommends giving preference to the centre in your local area.
Can I get my NIF, NISS and SNS number together?
For eligible foreign citizens with a Portuguese address, yes. Since September 17, 2026, the Portuguese government has offered a combined service for requesting these three numbers through 12 Espaços Cidadão.
Final Thoughts
Registering with Portugal’s public healthcare system is one of the practical steps worth completing soon after moving to the country. The process involves more than simply obtaining a Número de Utente: your RNU registration, health-centre registration and family-doctor assignment are separate parts of the system.
For newly arrived expats, the process has also become more convenient in 2026. Eligible foreign residents can now request their NIF, NISS and SNS number together through the government’s combined identification service, while those who already have an SNS number can proceed with registration at their local health centre.
The most important thing is to keep your personal and residence information up to date. Once your SNS registration is established, setting up SNS24 and registering with your local primary-care centre will make it much easier to navigate Portugal’s healthcare system when you actually need it.
