Applying for a Social Security Identification Number (NISS)

The Social Security Identification Number (NISS) allows access to rights and obligations in Social Security.

Persons with a citizen’s card do not need to apply for an NISS because this number already appears on the citizen’s card.

Legal persons (companies) also don't need to ask for the NISS. When companies register in the commercial register, the Tax and Customs Authority (AT) communicates it automatically and free of charge to the Social Security authority, and a NISS is assigned to the company.

Foreign nationals who do not have a NISS can apply for one using the 'NISS NA HORA' service.

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Who can Applying for a Social Security Identification Number (NISS)?

  • 'NISS NA HORA' can be requested by:

    People with a Citizen Card and legal entities (companies) do not need to request the NISS. It is assigned automatically.

What are the documents and requirements to Applying for a Social Security Identification Number (NISS)?

  • Request by the foreign person

    To request the 'NISS NA HORA', it is necessary to:

    • Fill out the application Mod RV 1006 - 2022 DGSS - Assignment of Social Security Identification Number - Foreign Citizen
    • Submit the following data
      • Full name
      • Date of birth
      • Place of birth
      • Nationality
      • Gender
      • Marital status
      • Identification document number from your country of origin
      • Residence
      • Tax identification document number (if already assigned)
    • If you are from a member state of the European Union, the European Economic State or Switzerland, please present the Citizen Card, the residence permit or other civil identification document from the country of origin and a simple copy
    • If from a third country, present the passport, the residence permit or other civil identification document from the country of origin and a simple copy

    When the request is made by a legal representative, the copy of the civil identification document of the person for whom the NISS is being requested must be notarized.

    Request by the employer

    To request the NISS na Hora, it is necessary to:

    • Fill out the request Mod RV 1006 - 2022 DGSS - Assignment of Social Security Identification Number - Foreign Citizen
    • Fill out form PA-12-V01-2022 - Declaration of Authorization to Third Parties or submit a power of attorney (in this case the employer acts as the future worker's legal representative)
    • Present the worker's identification document (notarized).

How can you Applying for a Social Security Identification Number (NISS)?

Request by the foreign person

The request is made in person:

The service is available by appointment through the telephone numbers 210 548 888 or 300 088 888.

Request by the employer

The request is made through the e-mail of the District Centre of Social Security of the area where the company's headquarters is located.

Note: This request is exclusively for the NISS assignment. The employer must communicate the employee's contract on Social Security Direct (SSD).

The NISS is assigned by the Social Security Institute (ISS), and there is no set deadline for this.

What is the Price to Applying for a Social Security Identification Number (NISS)?

It is free of charge.

Old NISS conversion from 9 to 11 digits

As of 2004, the NISS were automatically converted from 9 to 11 digits. If you have a lifetime ID card and don't know your 11-digit NISS, please consult it via Social Security Line (210 545 400 / 300 502 502, weekdays from 9 a.m. to 6 p.m.) or at a Social Security desk.

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