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Filing of other documents, applications, and communications (Social Security General Treasury) No certificate < Go back



You can file letters, applications and communications through this service without identifying yourself electronically, when this is not required by law. Review the description of this service in "About this process". In this case your written document will not be formalised on the Social Security Electronic Registry and may be required to prove your identity or verify the documentation and data submitted.

The authorised NETWORK must submit applications from the assigned companies, self-employed workers and domestic, through the NETWORK system, except for applications for deferrals to Social Security contributions or the submission of documentation relating to such applications which should be carried out exclusively  via the Social Security electronic register, which can be accessed via the  Deferral in the payment of debts to Social Security” or “ Answer requirements or submit documentation related to a document received from Social Security services, respectively. Any other application submitted by an Authorised person via a channel other than the NETWORK System will not be processed.

This service enables you, either in your own name or on behalf of another person, to present written documents, applications and communications to the Social Security General Treasury for which there is no specific presentation service on the Social Security e-Office.

About this procedure

Who it is for

People who, either in their own name or on behalf of another person, wish to file written documents, applications and communications with the Social Security General Treasury  for which there is no specific filing service on the Social Security e-Office.

What you can do

  • Attach documentation addressed to the Social Security General Treasury.

What you need to do it

  • Attach the documents that you wish to send.

Please note

The province where you are filing indicates the Provincial Directorate of the Social Security General Treasury to which you should address your documentation.

Your connection has a time limit. Therefore, if your session times out while filling in the application form you have to restart the session and complete the items pending.

If you need to process an urgent and non-deferrable request, please fill in all the fields on the online form:

  • For the physically handicapped: DNI/NIE, companies: CIF or other, if you have another identification document.
  • First name and surname(s).
  • Make sure that you correctly fill in your phone number and email so that we can contact you and handle any issues that may occur with your request or communication.
  • Entity to which the communication is directed: Social Security General Treasury.
  • The province where you are filing: indicate the Provincial Directorate of the Social Security General Treasury to which you should address your written documents or request.
  • Choose the subject that your request or communication refers to.
  • Please state your request or communication.
  • Attach the supporting documentation (maximum 10Mb). Official applications and forms are accessible through the following link. If the documentation has been successfully attached, a box will appear indicating that the process has been 100% completed.
  • Important: If you make a request do not forget to send a copy of your ID or identification document.
  • Complete the security question and click continue. If the process has been completed successfully, a prompt will appear at the top of the screen.


  • Please refer all documentation relating to your request  in a single delivery, to facilitate the processing of your application.
  • Please note that we are working to reduce the impact of COVID-19 containment measures on our management, however our response times may be affected. For this we need your collaboration to facilitate the management of this exceptional-circumstance channel.
  • Please do not ask questions about the status of your request via this channel. Our staff will contact you in the event they need to perform any checks or request additional documentation.
  • For the proper functioning of this exceptional-circumstance route for the submission of requests and communications  your collaboration and responsible use of these public services is essential. Thank you for your cooperation.

The total size of the documents to be attached must not exceed 10 Mb.

Next steps

In this case, no receipt will be generated for your request or communication, nor will your request be entered into the Electronic Registry. This communication will reach the Provincial Directorate that you have selected and will be managed there according to the priority established. In this case, we may need to contact you to confirm your identity, verify the data and documentation submitted, or if additional documentation is required.

To access this service check you have the necessary technical requirements.

Direct access to procedures

  • Electronic
  • Username +
    Username +
    Password (Cl@ve
  • Cl@ve
  • No
  • Via SMS
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