Good to know · Work

Obtain a Spanish Social Security number (NUSS)

The Número de la Seguridad Social (NUSS) identifies you with the Spanish Social Security system; your employer normally requests it when you start work, or you can request it yourself online or in person with your passport, NIE or DNI.

Why it matters

You need it before any Social Security affiliation (employment, self-employment) and for later benefits and health-care entitlement through the INSS, and you can request it before you have a job.

When

You are about to start a job or self-employment in Spain, or otherwise need Social Security services, and do not yet have a NUSS.

How long it takes

You can request it at any time, but before affiliation; no processing time is stated in the sources found.

Official page

Obtención del Número de la Seguridad Social / Afiliación

Last checked

6 Oct 2026

Do these first

• Obtain a NIE (foreigner identification number)
• Register for Cl@ve (electronic ID for government services)