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Social Security number (NUSS)

Check whether you already have a Social Security number (NUSS) and, if you don't, ask for one.

You need it to be registered the first time you work.

The essentials

What it costs: The official information does not mention any fee.
How long it takes: You can apply whenever you want. There is no fixed time for the answer.
To prepare it: How long the answer takes depends on how you apply

People who do not yet have a Social Security number.

Could you already have one? Check before asking for another.
Do you have Cl@ve or a digital certificate? Without a NUSS you cannot identify yourself by SMS.
Is it for a child? Their mother, father or guardian must apply.

Tick each document when you have it ready. Ticks are not saved.

Your DNI or NIE, your address and your contact details
If you have neither Cl@ve nor a digital certificate: photos of your ID and a selfie
For a child: form TA.1 and the document proving you represent them

First, log in to your personal area in Importass, the Social Security website. You may already have a number from a previous job or from the Seguro Escolar (school insurance).
Open «Solicitar NUSS» and choose how to identify yourself: with or without electronic ID.
Fill in your details and upload the photos or documents they ask for to prove who you are.
Keep the confirmation. Before you give the number to your employer, check that it has been assigned.

Keep the document that shows your number.
Being registered at work and healthcare are separate procedures: check them separately.

Having a number is not the same as having a work permit or a benefit.

Solicitar el Número de la Seguridad SocialTesorería General de la Seguridad Social