Spanish Social Security Number

How to – Apply for your Spanish Social Security Number

Why do I need it?

Every person who works for a registered company or is self-employed in Spain is required to have a Spanish Social Security Number, called anúmero de afiliación de la Seguridad Social. Social Security is generally paid for by an employer. This number also helps track pensions, unemployment and sick days, as well as maternity or paternity leave.

Any foreigner working or studying in Spain is entitled to a Spanish Social Security number, necessary for tax purposes as well as contracting and all procedures related to labor and work. Petitions are made at the Instituto Nacional de Seguridad Social, which also handles pensions, disability, motherhood and fatherhood, death and survival and public health care.

The Spanish Social Security system benefits all workers who are active within it. Each calendar day cotizado, that a worker has been employed, counts towards your Spanish pension and unemployment benefits, so be sure to check that your place of work has given you the activation, called an alta.


Any citizen or worker, whether employed by another person or self -employed, who does not already have a social security number may request one.

The Employer must request the social security number of the person they intend to hire, if they do not already have one.

What is involved – Form TA1, must be signed by the applicant –  which you can download here.

It looks impressive, especially if you do not speak Spanish, but is in fact quite easy to fill in if you know what you are supposed to do: give your name, ID details and reason for requesting for a social security number.
Fill the form to your best, and print another one for when you will go to the relevant office.

Help! How do I fill out the form?

Here’s the important information you’ll have to fill out:

Section 1: Personal data

1.1  : First Surname / Second Surname (if applicable) / First name

1.2 : Gender (M for mujer or female, V for varón or male)

1.3 : Type of ID (mark with an X): Spanish DNI number / Foreigner’s Card / Passport

1.4 : Number on your identification document

1.5 : Social Security number (if applicable)

Date of birth / father’s full name / mother’s full name

Place of birth / province of birth / country of birth

1.6 Disability (if applicable) / nationality /maiden name (if applicable)

1.8 Street Address

1.9 Email address /option to have information sent by text message / Mobile phone number

Section 2: Relevant Social Security Data

Mark with an X: Activation of Social Security / Number Assignment for Social Security / Change in data

2.1: Cause for data change (if marked X)

2.2 Listing of any accompanying documentation

Section 3: Option to have data sent to a second address added for communication purposes

At the bottom left, the solicitor and his or her employer must, write the place and date, then sign in this format:

En Sevilla, el 5 de julio de 2016

By filling out a form and presenting your original and a photocopy of a passport or another form of ID, you will be given a número de afiliación de la seguridad social. Keep in mind that you won’t be given an actual card like you might have in your home country, so be sure to keep the official form with your number for tax purposes.

Documentation needed –

  • National ID and Passport if you have both,
  • Residency papers:If you are a EU citizen, only the NIE number if you already have one. For non-EU, Residency and/or Visa.
  • Not required officially but always good to have with you if you have them: rental contract, employment contract, escrituras if you have bought a property in Spain.

(always take 2 copies with you just in case they are needed, as these offices do not provide copying services)

Where is it processed

In Person – The application and documentation must be presented at  the office of the Social Security Treasury General or Administration. which is local to the person or company applying for the number.

On-Line – By accessing the e-office´s “Allocation of Social Security Number” service, using a digital certificate

  • Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Teléfono: 966815454
  • Fax: 966815501
03501 Benidorm (Alacant/Alicante)

The decision on the application will be made and the applicant notified within 45 days, after this period the application shall be understood as being accepted.


Health care is one of the biggest assets of being in the social security system, and your employer covers the necessary fee for your basic care. In most regions, general doctor visits and emergency care are free at public clinics and hospitals.

Prescriptions and surgeries are not covered under the social security umbrella and must be paid for after care has been administered, though often at a reduced cost. Note that dental care is not part of the social security system and must therefore be paid out of pocket. For more information, contact a social security office in your region.

Every autonomous region has its own regulations for the administration and compensation, as well as rules related to the type of contract you possess, so visit your nearest office or ask a lawyer.

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