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Basic Information

Concept of creditor

A creditor is a natural or legal person who has provided services or delivered goods to the Social Security system in accordance with its regulations.

Supplier registration

1.- Legal entity:

Where should the documentation be taken?

     Social Security Electronic Office

  • Documentation to be submitted:

  •     Fill in the required information and sign the application electronically.
  •      Attach justifying documentation:
    •      Copy of DNI, NIF or NIE.
    •     Original electronic bank certificate, not older than two years, issued by the financial institution and electronically signed by it. To obtain the electronic banking certificate, try your digital bank directly or contact your financial institution.
    •      Power of attorney or proxy.
    •      Supporting document for the procurement: tender document, invoice, procurement document, etc.

2.- Natural person:

Where should the documentation be taken?

Social Security Electronic Office or Public Registry addressed to the corresponding Provincial Directorate of the Social Security General Treasury.


Documentation to be submitted:


   A. Social Security Electronic Office

  • Fill in the required information and sign the application electronically.
  • Attach justifying documentation:
    • Copy of DNI, NIF or NIE.
    • Original electronic bank certificate, not older than two years, issued by the financial institution and electronically signed by it. To obtain the electronic banking certificate, try your digital bank directly or contact your financial institution.
    • Power of attorney or proxy, if applicable.
    • Supporting document for the procurement: tender document, invoice, procurement document, etc.

   B. Public Registry

  • Providerregistration application form addressed to the Provincial Directorate of the TGSS of the corresponding province.
  • Copy of the DNI or NIE card of the holder, legal representative or proxy.
  • Bank certificate no more than two years old, signed and stamped by the financial institution.
  • Supporting document for the procurement: tender document, invoice, procurement document, etc.    

Change of supplier

1.- Legal entity:

Where should the documentation be taken?

     Social Security Electronic Office

  • Documentation to be submitted:

  •     Fill in the required information and sign the application electronically.
  •    Attach justifying documentation:
    •     Copy of DNI, NIF or NIE.
    •    Original electronic bank certificate, not older than two years, issued by the financial institution and electronically signed by it. To obtain the electronic banking certificate, try your digital bank directly or contact your financial institution.
    •   Power of attorney or proxy.

2.- Natural person:

- Where to submit the documentation?

Social Security Electronic Office or Public Registry addressed to the Directorate General of the Social Security General Treasury.


Documentation to be submitted:

   A. Social Security Electronic Office

  • Fill in the required information and sign the application electronically.
  • Attach justifying documentation:
    • Copy of DNI, NIF or NIE.
    • Original electronic bank certificate, not older than two years, issued by the financial institution and electronically signed by it. To obtain the electronic banking certificate, try your digital bank directly or contact your financial institution.
    • Power of attorney or proxy, if applicable.

   B. Public Registry

  • Provider registration application form addressed to the Directorate General of the TGSS.
  • Copy of the DNI or NIE card of the holder, legal representative or proxy.
  • Bank certificate no more than two years old, signed and stamped by the financial institution.

Application form for registration as a creditor


En la siguiente tabla podrá descargarse los siguientes Documentos.
Documentos Download Fecha
Application form for affiliation as a creditor Descargar documento Application form for affiliation as a creditor. The document will open in a new window. Descargar documento Application form for affiliation as a creditor. The document will open in a new window. (PDF,1154 KB) 17/11/2022

Application form for change of details of a creditor


En la siguiente tabla podrá descargarse los siguientes Documentos.
Documentos Download Fecha
Application form for data changes as a creditor Descargar documento Application form for data changes as a creditor. The document will open in a new window. Descargar documento Application form for data changes as a creditor. The document will open in a new window. (PDF,4714 KB) 12/04/2023
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