Social Security Number (NUSS) in Spain

What it is

The Número de la Seguridad Social (NUSS, also called número de afiliación) is your personal number in the Spanish Social Security system. It is assigned once and stays with you for life. Employers need it to register you, and you need it to register as autónomo.

The request is made to the Tesorería General de la Seguridad Social, either online or at one of its offices, using form TA.1.

Who it is for

• People about to start their first job in Spain.
• Anyone registering as self-employed (autónomo).
• Students who will do paid internships or part-time work.
• Residents who need the number for healthcare registration.
• People who had a number years ago and cannot find it.

Documents usually needed

• Passport and NIE certificate, TIE or EU registration certificate.
• Form TA.1, completed and signed.
• In some cases, proof of address in Spain.

If your NIE and passport details do not match exactly, the request can be rejected. We check that first.

How we handle it

1. Check your documents. We confirm that your identification documents are consistent and valid.
2. Request. We prepare form TA.1 and file the request online or book an appointment at the Social Security office.
3. Confirmation. We send you the document showing your number and explain how to give it to your employer or use it for autónomo registration.

Timeframes

Online requests are often answered within a few days, though this varies. In-person requests depend on appointment availability in your area.

Price

From 60 € + VAT. There is no official fee for the number itself.

Frequently asked questions