How do I get a NISS (Social Security number)?

Segurança Social · Social Security

• The NISS (Social Security identification number) is requested online on the Segurança Social (Social Security) website, via the 'NISS na Hora' service or the allocation form.
• You need an identification document and, if you are a foreign citizen, a residence permit or a valid authorization.
• If you are about to start working, the employer can also handle the registration — ask before you apply to avoid duplication.

Automatically translated. Always confirm on the official Portuguese source.