NISS: your Social Security number
Número de Identificação de Segurança Social. Your identifier in Portugal's social security system.
What it is
The NISS identifies you in Portugal's social security system. It is needed to work in Portugal, to be self-employed, and for employers to register staff. It is also commonly asked for during residence processes.
Available as Standard or Express.
What the request needs
A NISS is requested through the Social Security portal with a copy of an identity document. Third-country nationals can use a passport or residence permit.
Requests generally need a Portuguese address.
Documents
- Passport data page
- NIF
- Visa or residence permit, if you have one
- Portuguese address, if available
How it works
Request a quote
Tell us about your case and we reply by email.Send your documents
The request needs a copy of an identity document, among the documents below.Request is made
The request goes through the Social Security portal, and Social Security confirms by email.Number is collected
At a Social Security service desk with ID, or by our partner lawyer holding an original power of attorney on your behalf.
Questions about the NISS
Can I get NISS and SNS before I move?
NISS requests generally need a Portuguese address. SNS access is based on legal residence, and the number is issued by the local health centre for your registered address, so a real residential address is required. Hotels and temporary addresses are usually not accepted. That is why we suggest the NIF first, then NISS and SNS once you have arrived and secured an address.
Is my data safe?
Your data is kept in encrypted storage. Access is limited to our team and our partner lawyer, and your data is deleted after the retention period in our privacy policy.
How much does it cost?
Every case is quoted individually. Request a quote and we reply by email.
Get your NISS
Every case is quoted individually, and we reply by email.