If a Portuguese health centre tells you “get a NISS first,” “wait for your residence card,” “we are full,” or “send everything by email,” do not start the whole process again. First find out what they are actually blocking.
In 2026, these are separate things:
- getting your Número Nacional de Utente (NNU) — the SNS/utente number itself
- having an updated RNU record
- being registered in primary care at a centro de saúde
- being assigned a family doctor
- having the SNS assume the cost of your care
That distinction matters. The NNU is a unique, national and definitive number. A foreign adult can still have that number while the underlying RNU record is em curso or incompleto. In that situation, the number exists, but primary-care registration and financial coverage can be restricted.
The NNU itself costs €0.
Quick Answer: The Portuguese SNS utente number is the free, national Número Nacional de Utente (NNU). You can request it at a public SNS unit, but having an NNU is not the same as having an updated RNU record, primary-care registration, a family doctor, or SNS financial coverage.
Utente number Portugal: the 2026 answer in 60 seconds
| Question | Current answer |
|---|---|
| Official name | Número Nacional de Utente (NNU) |
| Common names | Número de utente, utente number, SNS number |
| Cost | €0 |
| Normal route | A public SNS health unit, such as a centro de saúde or hospital |
| Can you ask without needing treatment that day? | Yes |
| Minimum RNU identity data for a foreign-born person | Name, sex, date of birth, nationality and country of birth |
| Is NIF always required just to create the NNU? | No — it is not in the minimum dataset |
| Is NISS always required? | No — the RNU rules collect NISS only when applicable |
| Can you get an NNU before the residence card arrives? | The number can be created, but an adult without a valid residence-authorisation document will normally not have an updated RNU record |
| Can a foreign child have an updated RNU record without NIF/residence-authorisation data? | Yes, while under 18 |
| Does an NNU automatically mean SNS pays the bill? | No |
| SNS 24 | 808 24 24 24 |
| Linha Cidadão | 210 489 010 / 300 003 990, weekdays 09:00–18:00 |
| ERS | 309 309 309, 09:00–17:30 |
NNU, RNU and centro de saúde registration are not the same thing
This is the part most guides skip.
Your NNU is the identifier. Your RNU is the health-system record behind it. The RNU can have different statuses, including:
- registo atualizado
- registo em curso
- registo incompleto
- registo em histórico
There is also registo atualizado não residente, but that category is for Portuguese citizens habitually resident abroad.
For a foreign adult living in Portugal, an updated record requires the mandatory identity fields, identification-document details, NIF, Portuguese address and valid residence-authorisation information. ERS states that a foreign citizen without a valid residence-authorisation document is instead classified as registo em curso or registo incompleto.
A registo em curso can last up to 180 days, counted from the SNS contact asking you to complete the missing data. ERS says the SNS should make another contact after 90 days if the required data are still missing. After the 180-day period, the record becomes incomplete if it has not been regularised.
Why this matters: since the 2026 primary-care changes, registration in a centro de saúde requires an updated RNU record. So “I already have an SNS number” and “I am registered in primary care” are no longer interchangeable statements.
If two desks give you different answers, the inconsistency is not imaginary. In an ERS study of immigrant access to primary care, 59.2% of surveyed units identified information-system registration problems for regular immigrants and 52.5% pointed to insufficient or scattered guidance on the rules. ERS had also reviewed 900 complaint/suggestion cases involving foreign citizens’ access to primary care from 2020–2024, with refusal of RNU registration and/or NNU issuance among the main problem groups.
What documents do you need for a Portugal SNS number?
There are two different document thresholds.
1. Minimum information to create the NNU
For a foreign-born person, gov.pt and the RNU rules identify these five core fields:
- full name
- sex
- date of birth
- country of nationality
- country of birth
RNU data are taken from official documents, so take your passport or national identity document even though the minimum dataset itself is short.
2. What a foreign adult needs for an updated RNU record
For the ordinary foreign-resident case, take:
- Passport or EU national ID card
- Portuguese NIF
- Full Portuguese address and proof of it
- Valid residence-authorisation document, where applicable
- Portuguese mobile number and email
- NISS if you already have one or it is applicable to your situation
The distinction is important: NIF and residence-authorisation data matter for the updated record, but they are not all part of the five-field minimum used to create the NNU.
What I’d take with me
I would take the full pack even if the desk says it only needs one or two documents: original ID, NIF proof, residence document, address proof and any AIMA receipt or proof relevant to a pending case. Keep clean PDF copies on your phone as well.
If the address on your documents does not match, sort that out first where possible. Our proof of address guide covers the main documents used in Portugal.
How to get your utente number at a health centre or hospital
The ordinary national route is simple on paper: the NNU is created when a foreign citizen has contact with a public SNS unit. Gov.pt says you may also ask for it at a public health unit even when you do not need treatment that day.
You do not need a nationwide online “utente application form” because no such ordinary-route form exists.
At the desk, say:
Quero pedir a atribuição do meu Número Nacional de Utente e verificar o estado do meu registo no RNU.
That wording is useful because it asks for both the number and the status behind it.
If you are also trying to register at the centro de saúde, add:
Quero também confirmar se o meu registo permite a inscrição nos cuidados de saúde primários.
Gov.pt says to give preference to the health centre for your area of residence. If you do not know which one covers your address, call SNS 24 — 808 24 24 24.
“They told me to email the documents.” What should I send?
Local ULS units sometimes use their own email or administrative channel even though there is no single national email application.
The recurring community problem is not the email itself; it is sending sensitive documents to an old address and then waiting for months with no case reference.
Before sending anything, confirm the address on the official ULS/health-centre page or at the desk.
Use a subject line that is easy to trace:
Pedido de NNU / Atualização RNU — [FULL NAME] — [NIF if available]
A short request is enough:
Bom dia,
Pretendo solicitar a atribuição do meu Número Nacional de Utente e/ou a atualização do meu registo no RNU. Resido em [concelho/freguesia]. Em anexo envio os documentos solicitados. Agradeço confirmação de receção e indicação por escrito caso falte algum documento.
[Nome completo] [Data de nascimento] [Telefone]
The question I’d ask before leaving the desk: “How will I know this was actually received — do I get a ticket, reference number or confirmation email?”
Can you get an SNS number before your residence card arrives?
Yes, but this is where the distinction between having an NNU and having an updated RNU record becomes crucial.
The current combined-identifiers service on gov.pt expressly accepts eligible foreigners who have requested or already obtained residence authorisation. That means a pending physical card does not automatically stop you from requesting an NNU.
However, ERS’s August 2026 guidance is clear about the consequence for foreign adults: without a valid residence-authorisation document recorded in the RNU, the record is normally em curso or incompleto. In those statuses:
- primary-care registration is not available
- the SNS normally does not assume the financial responsibility for care, unless a specific legal exception applies
So if your AIMA process is pending, take:
- passport/ID
- NIF, if issued
- Portuguese address proof
- AIMA receipt, application proof or other official document showing the residence process
- any current residence document or official proof of its validity you have
Ask the unit to tell you the RNU status, not simply whether your “utente is temporary.”
If your residence documentation is the actual problem, see our Portugal residence-card guide.
No valid residence document: one important 90-day rule
ERS says that a foreign citizen without a residence authorisation who presents a Junta de Freguesia declaration proving residence in Portugal for more than 90 days can access urgent and vital care with financial responsibility assumed by the SNS. The declaration has to be shown when accessing the care until valid residence-authorisation information is recorded in the RNU.
ERS also lists specific exceptions where certain care remains covered under the applicable rules, including maternal/reproductive care, pregnancy and newborn care, care for minors residing in Portugal, vaccination, some family-reunification cases where a household member contributes to Social Security, and cases of proven social exclusion or financial hardship.
Those exceptions affect coverage. They do not by themselves turn an incomplete adult RNU record into an updated one.
Is NISS required to get a utente number?
Not as a universal rule.
The RNU rules list “NISS, when applicable.” More importantly, NISS is not part of the minimum dataset used to create the NNU, and it is not one of the mandatory fields ERS lists for a foreign adult’s updated RNU record.
That is why a blanket statement such as “no NISS, no SNS number” is too broad.
If a desk asks for NISS and you do not have one, use this:
O NISS é obrigatório para a atribuição do NNU ou para outro procedimento no meu caso? Pode indicar-me por escrito qual requisito está a ser aplicado?
If you need the Social Security number anyway, use our NISS guide.
How to get an utente number for a child
The current rules are more favourable to foreign minors than many desks and older guides suggest.
For a foreign child:
- identity-document information is only mandatory after 2 months of age
- NIF and residence-authorisation information are not mandatory for an updated RNU record while the child is under 18
- ERS says that after the child reaches 18 there is an additional 90-day period to regularise those fields
That means a foreign child should not be refused an updated RNU record simply because the child does not yet have a NIF or residence card.
Take the child’s available passport/ID or birth documentation, plus the parent/guardian’s ID and proof of the relationship.
For the combined NIF/NISS/NNU service, gov.pt says the request for a minor can be made by the father, mother, guardian or legal representative.
One extra point worth knowing: under the current primary-care rules, families with children up to age 12, pregnant people, people with multimorbidity and people with chronic disease have priority in family-doctor allocation. Priority is not the same as an immediate doctor assignment; vacancies still matter.
What does “temporary utente number” mean now?
The NNU itself is not legally a temporary number. ERS describes it as unique, national and definitive.
What people often call a “temporary utente” is an NNU attached to an RNU record that is still em curso or has become incompleto.
This explains a common real-world pattern: the person has an NNU, but cannot complete primary-care registration or later discovers that the SNS is not assuming the cost they expected.
If someone tells you your number is temporary, ask:
Qual é a tipologia do meu registo no RNU: atualizado, em curso ou incompleto?
And if it is not updated:
Qual é exatamente o dado em falta para o meu registo ficar atualizado?
That is much more useful than asking for a “permanent utente number,” because there is no second NNU to issue.
Can you request NIF, NISS and the SNS number together?
Yes, if you meet the eligibility rules.
Gov.pt currently says the combined NIF + NISS + NNU request is available at 12 Espaços Cidadão for foreigners with a Portuguese address who do not have a Portuguese Citizen Card and who meet at least one of these conditions:
- have requested or obtained residence authorisation
- are an EU citizen
- have applied for international protection
- have refugee or international-protection status
A legal representative can apply. For a representative, gov.pt requires a valid power of attorney; certified ID copies may need consular certification or a Hague Apostille.
Do not travel across a district based on an old forum list. The national page was updated 15 June 2026 and the participating locations can change. Open the current gov.pt location selector or call Linha Cidadão: 210 489 010 / 300 003 990, weekdays 09:00–18:00 before travelling.
After the combined request is processed, gov.pt says the numbers can be consulted in the reserved area on gov.pt, in the gov.pt app, or at participating Espaços Cidadão.
If you only need the tax number, see our NIF guide.
Health centre says “we are full”: what does that actually mean?
A health centre can have no family-doctor vacancies without that being a refusal to create an NNU.
There are three separate questions:
- Do you have an NNU?
- Is your RNU record updated enough for primary-care registration?
- Is there a family-doctor place available?
Family-doctor allocation depends on available places. But having no assigned doctor does not erase your right to healthcare.
ERS says a person without primary-care registration who needs medical or nursing care can still have an episodic contact at a primary-care unit without being newly enrolled there. ERS also states that a person who is registered but has no family doctor still has the right to receive care within clinically appropriate timeframes.
If reception says “está cheio” or “não há médicos,” ask:
O problema é a minha inscrição no centro de saúde, o estado do meu RNU, ou apenas a falta de vaga de médico de família?
For the doctor-allocation side, see how to get a family doctor in Portugal.
How to prove your SNS number or check what is on the record
There is no single national certificate called “SNS registration paper” that every organisation must accept.
If someone asks for proof:
- Ask the SNS unit for a printout or written confirmation showing your NNU.
- Check your identification and primary-care-registration information in the Portal SNS 24 / App SNS 24.
- If you used the combined service, check the reserved gov.pt area or gov.pt app.
ERS says registered users can see their identification data and primary-care-registration status through Portal SNS 24 and the App SNS 24, and can update their phone number and email there.
If you log into SNS 24 using the NNU, gov.pt says you will need the NNU, date of birth and mobile number associated with the record.
If a hospital already created an NNU for you, do not ask another unit for a second number. The NNU is national and definitive; ask the health centre to find and update the existing RNU record.
What if the health centre refuses, sends you in circles or never answers?
This is where the article should stop being theoretical.
If this were my case, I would not keep sending the same passport PDF to the same silent inbox. I would force the problem into one of four categories: NNU creation, RNU update, primary-care registration, or family-doctor availability.
1. Ask for the exact missing requirement in writing
Use:
Pode indicar por escrito qual documento está em falta e para qual procedimento: atribuição do NNU, atualização do RNU ou inscrição nos cuidados de saúde primários?
Keep the date, unit name, ticket/reference and response.
2. Ask the unit or ULS to resolve the RNU issue
ERS says a foreign citizen with questions about the RNU or data updates should contact an SNS health unit. RNU management is handled through the ULS structures and their functional units.
If the reception desk cannot resolve it, ask for the ULS Gabinete do Cidadão or equivalent citizen/patient service.
3. Escalate to ERS if access rights are still being blocked
ERS says that when access rights are not being respected, first seek clarification from the provider. If the problem remains, you can request information from ERS and submit a complaint.
Useful ERS contacts:
- Call centre: 309 309 309
- Hours: 09:00–17:30
- General phone: 222 092 350
- Email: geral@ers.pt
- Address: Rua S. João de Brito, 621 L32, 4100-455 Porto
- Online complaint: use the complaints form on ers.pt
For a public SNS unit, the safest electronic escalation is the direct ERS form. You can also request the provider’s physical complaints book.
When you complain, include the unit, dates, what you asked for, the exact reason given, which document was demanded, and copies of any written response. A short factual timeline is more useful than a long general complaint.
Does an utente number mean healthcare is free?
No.
This is now one of the most important distinctions in the whole process. ERS says financial responsibility depends on the RNU status.
For a foreign citizen with an updated record, the SNS is normally the expected financially responsible entity, subject to the applicable rules. For registo em curso or registo incompleto, the cost is normally borne by the person or another responsible entity, apart from the legal exceptions described earlier.
So if you have an NNU but prescriptions suddenly have no SNS contribution, or a hospital says you must pay, ask the unit to check the RNU status and financial-responsibility field rather than assuming your number has disappeared.
If you are comparing public access with insurance or private providers, see our public vs private healthcare guide.
If you are blocked today, use this order
| What happened | Exact next move |
|---|---|
| “You need NISS first” | Ask whether NISS is being required for the NNU itself or another procedure, and request the rule in writing |
| “Wait for your residence card” | Ask for the NNU and RNU status separately; take AIMA proof and any current residence document or official proof of validity |
| “Your child needs NIF/residence card” | Point out that foreign under-18s do not need those fields for an updated RNU record |
| “Your utente is temporary” | Ask whether the RNU is atualizado, em curso or incompleto and what exact field is missing |
| “The centre is full” | Ask whether the issue is primary-care registration or only the family-doctor list |
| “Apply by email” | Confirm the official ULS address, ask for receipt/reference and keep the sent-message evidence |
| Hospital already gave you a number | Ask the health centre to find and update that NNU; do not create a duplicate |
| No reply / repeated refusal | Get the reason in writing, ask for the ULS citizen service, then escalate through ERS if unresolved |
The fastest phone checks are SNS 24: 808 24 24 24 for health-system routing, Linha Cidadão: 210 489 010 / 300 003 990 for gov.pt/combined-service location questions, and ERS: 309 309 309 when an access or administrative-rights issue remains unresolved.