How to Get a Social Security Number Portugal: Ultimate Guide

Updated: February 25, 2026

A social security number in Portugal is an important step for residents and workers. NISS or Número de Identificação da Segurança Social provides access to Portuguese social security benefits, pensions, unemployment protection, and healthcare.

You can get a NISS if you work in Portugal, have a job there, or are a self-employed freelancer. Once you have the NISS number, your social security payments will be registered and paid into Portugal’s social security system.

In this social security number Portugal guide, we will cover how to apply for a NISS. We also include the requirements, documents, and each step of the application process.

Stick around to read about:

What is a social security identification number (NISS)?
Who needs a social security number in Portugal?
Why do I need a NISS Portugal?
Social Security Benefits in Portugal
How to get a Portuguese social security number?

The NISS is mandatory for anyone working or planning to work in Portugal, including employees, self-employed, and certain dependents.
The NISS is different from the NIF. NISS is for social security, and you can use it for benefits, such as pensions, maternity leave, sickness, and other contributions. However, the NIF is for taxes and financial matters.
You can apply online via the Segurança Social Direta (SSD) portal or have your employer apply for you. The application itself is free of charge.
You don’t need a lawyer to apply for a NISS in Portugal, but if someone applies on your behalf, you must provide them with a Power of Attorney.
The average processing times take a few days for in-person applications, while employer-submitted applications can take about one to two weeks.

A Portuguese social security number is your personal 11-digit identification number in the national social security system. It is mandatory if you want to work, pay taxes, and access public healthcare in Portugal.

Social Security Registration (Número de Identificação da Segurança Social or NISS) is necessary for self-employment, standard employment, and access to public social protection benefits.

The NISS is the main ID for any entrepreneur or worker who uses it to comply with Portuguese labor laws. You can have only one NISS for the rest of your life. The Instituto da Segurança Social (ISS) issues your Portugal NISS number.

You need a NISS if you are:

A foreigner who works in Portugal or is self-employed
A Portuguese citizen without a Citizen Card
The legal representative of a foreign national
An employer hiring a foreign national

If you plan to hire someone, you sign the employment contract with the worker first. Then you report it through Social Security Direct. After that, Social Security assigns the NISS.

If you have a Citizen Card (Cartão de Cidadão), you do not need to apply. The system assigns your NISS automatically.

If you register a company, you also receive a NISS automatically.

Why do I need a NISS Portugal?

The Portugal social security number is mandatory for Portuguese residents and foreign nationals. In cases where:

You open a business, find a job, or register as a self-employed freelancer, you will need a NISS
You believe at some point in your life, you will need unemployment, sickness, or retirement benefits, it is critical to have a NISS
You are an expat in Portugal who wants to renew your residency or apply for a Utente number (Número de Utente) at certain health centers

A security identification number (NISS) provides many protections in Portugal, including access to public healthcare, unemployment or sickness support, family benefits, and pregnancy pay.

Public healthcare benefits

With a Portuguese residence permit, foreign nationals can use the public healthcare system.

After you register with the Portuguese social security system, you can access universal healthcare through the SNS (Serviço Nacional de Saúde). You go to your local healthcare center with your social security card and ask to be assigned a doctor. For more details, check our guide on healthcare in Portugal.

Unemployment benefits

To claim unemployment benefits, you must sign up as a job seeker with the Portuguese job center (Instituto do Emprego e Formação Profissional or IEFP). You must have worked at least 360 days in the 24 months right before you became unemployed.

Maternity and paternity leave

In Portugal, social security gives you maternity benefits.

To qualify, you must pay social security contributions for at least six months. You can pay them in a row or over time. You must also make contributions in the three months before your maternity leave starts.

If you are a mother, you can take up to 30 days of voluntary leave before your baby is born. After the birth, you must take 42 days of compulsory leave.

If you are a father, you can take up to 28 days of leave. You must take seven days right after the birth. You take the other 21 days within the next six weeks.

As a mother, you can receive parent benefits for 120 to 150 days. If both parents share the leave, or if you have more than one baby, you can receive 30 extra days.

You usually receive 100 percent of your income for the first 120 days. After that, you receive 80 percent for the next 30 days.

If you have low income and limited assets, you may qualify for extra social benefits. Your assets and monthly income must stay below certain limits set by the government.

Sickness and disability benefits

In Portugal, you can claim sickness benefits if you are an employee or self-employed.

To qualify, you must work for at least six months before you become sick. You can complete these six months in a row or over time. You must also work at least 12 days in the four months before your illness starts.

If you are self-employed, you must pay your social security contributions for the three months before you become sick.

If you are an employee, you start receiving sickness benefits from the fourth day that you cannot work. If you are self-employed, you start receiving benefits from the eleventh day.

The amount you receive depends on how long you are sick.

First 30 days of sickness: 55 percent of income
Day 31 to 90: 60 percent of income
Day 91 to 365: 70 percent of income
Over 365 days: 75 percent of income

There is also a minimum amount based on the Social Support Index (IAS). You receive at least 30 percent of the Portuguese social security reference wage. In 2026, it is €537.13 per month.

Child benefits

In Portugal, families can receive family benefits for children and young people.

You qualify if your family has assets below €128,911.20 (240 × the social support index IAS in 2026) and earns less than certain income limits used to calculate benefit amounts.

You can receive benefits for children up to 16 years old. For children aged 16 to 24, you only receive benefits if the child stays in education or has a disability.

The amount you get depends on your household income bracket and your child’s age. In 2026, for families in the lowest income bracket:

For a child up to three years old, the benefit is about €190.98 per month.
For a child older than three, the benefit is about €75.13 per month.

Families with higher incomes receive lower amounts, and amounts vary by age and bracket.

The Portuguese Social Security department (Segurança Social) provides full details about eligibility and current payment amounts.

Retirement benefits

To qualify for retirement benefits in Portugal, you need to have paid social security contributions for a minimum period. In most cases, it is 15 years for a minimum contribution period. However, the exact number can vary based on the type of pension.

You must reach the legal retirement age, which in Portugal is 66 years and nine months for 2026. You can also qualify for disability or a survivor’s pension if you meet certain criteria.

Pension payments

You can get a survivor’s pension in Portugal if the person who died paid social security for at least 36 months.

The amount you receive depends on your relationship to the deceased and their pension. For example, a spouse can get up to 70 percent of the pension, while children can obtain 20 percent to 40 percent of the pension.

You can also get a one-time death grant (Subsídio Por Morte). The rate in 2026 is €1,611.39.

You are eligible for a social security number in Portugal if you are employed, self-employed, or otherwise registered to work in the country. Foreign workers can get a NISS even before they have a Portuguese residence permit, as long as they have a valid work contract or can legally work in Portugal.

To meet the requirements for a NISS, you must:

Be at least 16 years old (or have a legal representative if you are younger)
Have a valid identification document
Provide proof of your residence or work status in Portugal
Submit the application form through the Social Security website.

For more details on a residence permit, check our guide on how to get Portuguese residency.

Planning to move to Portugal and buy real estate? Check our guide to buying property in Portugal

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What documents are needed to get a NISS Portugal?

You apply for a NISS by filling out the online form on the Social Security website and attaching the required documents. The documents depend on your nationality and residence status.

As an EU / EEA / Swiss national

You must provide one of the following:

National identification document from your country of origin (plus a copy)
Passport
Residence card

As a Non-EU / EEA / Swiss national

You must provide all three:

Passport
Work visa
Residence permit (temporary or permanent) or civil identification document from your country of origin

For people under international protection

If you have international protection (not including temporary protection for Ukrainians) or no other ID, provide one of the following:

Provisional residence permit (ARP)
Proof of ARP application or renewal
Refugee residence permit or subsidiary protection
Declaration of international protection

Additional documents for your employment

You also need proof of your employment or self-employment:

Employment contract
Registration as self-employed and receipts/invoices
Company registration certificate from the Institute of Registries and Notaries (IRN)
Permanent trading certificate (MOE)
Proof of employment with an EEA company (digital nomads)
Proof of eligibility for voluntary social security contributions
Proof of address (like utility bills or rental contracts)
Portuguese tax identification number (NIF or Número de Identificação Fiscal) from the Portuguese tax authority

Proof of residence permit

You may need one of the following:

Proof of application for a Portuguese residence permit (for foreign nationals)
Proof of application for a residence visa (for CPLP nationals)
Proof of application for a residence authorization certificate (for CPLP nationals)

Application by employer or legal representative

As an employer or a legal representative, you can apply on behalf of the foreigner.

You must submit:

Power of Attorney (original) or declaration of authorization (PA12)
Valid ID of the legal representative (passport, work visa, residence permit, or other civil ID)

You report the employment contract on Social Security Direct (SSD).

To get a social security number in Portugal, you submit an application on the Social Security website and provide all the required documents.

If you are an employee, your employer can apply on your behalf. In this case, you only need to provide your employer with the completed application and the necessary documents.

After they process the application, you will receive your NISS, which links your work to Portugal’s social security system.

How to apply for a social security number online

If you are eligible, applying online is fast and convenient. You should:

Complete the application form on the Social Security website
Upload scanned copies of your required documents
Submit your application for processing

How to apply for a social security number in-person

To apply in person, you should:

Fill out the application form, making sure all information matches your documents
Submit your documents to the Social Security office
Wait for processing, as review times may vary

After the Portuguese authorities approve your application, you will receive your social security number. This number is permanent and valid for a lifetime. That means you only get one social security number in Portugal. So, you must keep it safe to use it with Portugal’s social security system.

Additional Considerations for NISS Portugal

Self-employed professionals: If you are self-employed on a D8 (Digital Nomad Visa) or a D2 Entrepreneur Visa, you must apply for your NISS yourself.
Employer assistance: Your employer can often help you get your social security number. Employers can help employees on a Portugal D7 Visa or other long-term visas apply for their NISS.
Non-residents: If you plan to work in Portugal, through the Portugal HQA Visa Program, D7 Visa (Passive Income Visa), D8 Visa, or any other visa, you need a social security number to meet legal requirements.

How can Goldcrest help you?

Working in Portugal is just one part of the journey. But if you are planning on buying property in Portugal, then we can simplify the entire process.

The Portuguese real estate market fluctuates significantly from one area to another. Whether you are interested in purchasing a house, villa, or apartment, expert guidance can help you make a sound investment in a fairly new market, like Portugal.

What services do we provide?

Goldcrest is a buyer’s agent with offices in Lisbon, Porto, and the Algarve. Our team provides market analysis reports, analytical comparisons, and the latest data on fluctuating prices.

We provide:

Market data
Property search services
Negotiations for property prices
Rental services
Other after-sales activities (such as property set-up, leasing, and property management for long-term rentals)

Do Portuguese people have social security numbers?

All Portuguese citizens and residents who work or plan to work in the country must have a Portugal social security number (NISS).

Does Portugal have a social security system?

Yes, Portugal has a social security system known as Portuguese Social Security (Segurança Social). It provides social security benefits, such as paid sick leave, maternity pay, pensions, parental leave, and other coverages.

How do you get a social security number in Portugal?

To get a social security number in Portugal, apply at a local Social Security office with ID and proof of address. Employees, self-employed workers, and residents needing benefits can get their number in a couple of days.

Is it difficult to get a social security number in Portugal?

Not at all. The process is straightforward, provided you have all the documents, such as a valid ID and proof of address in Portugal. With these ready, most applicants receive their social security number (NISS) in a few days.

Can I get NISS Portugal for free?

The application itself for a Social Security Identification Number (NISS) in Portugal is free of charge.

How long does NISS application take?

The average processing time for an in-person application at a Social Security office is about a couple of days. But if an employer submits the Portugal NISS application, it can take one to two weeks. Keep in mind that processing times vary for each case.

Do I need a Lawyer to get a Portuguese NISS?

You don’t need a lawyer to get a NISS. You can apply online or have your employer submit the application for you. If you want a lawyer (or any third party) to handle your NISS application, you must give them a Power of Attorney (Procuração) or a Declaration of Authorization (PA12).

What is the difference between NIF and NISS in Portugal?

The difference between the NIF and NISS is in their purpose. You use the NIF Portugal for taxes, banking, and financial matters, while the NISS is for social security, benefits, pensions, and contributions.

How do I check my social security status in Portugal?

To check your social security status in Portugal, go to the Segurança Social Direta (SSD) online portal. Log in with your NISS and password, then select Conta‑corrente (current account) and “Situação contributiva” (contributory status). Your status will appear on your dashboard.