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Filing of other documents, applications, and communications (National Social Security Institute) < Go back



If you have an electronic certificate or Cl@ve, please use it to access this service. You can also use this service through a representative, a person you trust, who has a digital certificate or Cl@ve. In both cases, the service will provide proof of your document submission and registration.

If you are a professional, or are otherwise obliged to use electronic means, acting on behalf of an interested party you must use the e-Office service for the procedure you wish to complete by accessing with your electronic certificate or cl@ve. Requests submitted through this service, or with no cl@ve or certificate, will not be processed.

Exceptional COVID19 measures:

To help you use the service, you can refer to this informative video

Exceptionally, and as long as the current containment measures are maintained, you may submit urgent and non-deferrable written documents, requests and communications via this service without electronically identifying yourself, if you do not have the means to do so. MVI applications will not be accepted through this service. From Monday 15 you can file these applications using the specific service for the Minimum Vital Income.

Please note that, in this mode of submission, your document or application will not be formalised in the Social Security Electronic Register. Data will be confirmed on screen and you will receive a copy of what is sent to the Provincial Address you select by email. We may also need to contact you to confirm your identity, verify the data and documentation submitted, or if additional documentation is required

To send applications, you can obtain the forms in  the application forms and templates section. If you need to send any communication regarding your pension, you can obtain and fill in the forms in the pensioner communications section.

We remind you of the need to make responsible use of this channel to ensure the delivery of an adequate and effective service.

This service enables you, either in your own name or on behalf of another person, to present written documents, applications and communications to the National Social Security Institute for which there is no specific presentation service on the Social Security e-Office. Minimum Vital Income applications will not be accepted through this service.

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 National Social Security Institute  for which there is no specific filing service on the Social Security e-Office.
Please remember that there is a specific service for Minimum Vital Income applications. MVI applications will not be accepted through this service.

What you can do

  • Attach documentation addressed to the National Social Security Institute.

What you need to do it

  • Attach the documents that you wish to send.
  • If you do not have any of the documents necessary to process your application, you can replace it with an affidavit.
  • If you are acting as a representative, you must attach the standardised representation form, which can be found in the accompanying documents section, or any legally valid document that is proof of the representation.

Please note

Minimum Vital Income applications will not be accepted through this service. An exclusive service is available for these applications: Minimum Vital Income Application. You can apply with a digital certificate or cl@ve username + password, or without a certificate.

If you are logging in with a Username + Password (permanent Cl@ve), in order to guarantee a higher level of security, you will be sent a code via SMS to the mobile number that you provided at the time of registration. You must enter this code in order to sign the communication in the electronic register.

The province where you are filing indicates the Provincial Division of the National Social Security Institute 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.

Uncertified extraordinary service due to current state of emergency (Covid-19):

Here you can watch a video explaining how to use the service: Use of the service due to COVID19

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: Spanish National Social Security Institute
  • The province of the request: indicate the INSS Provincial Directorate for your place of residence.
  • 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 via the following link. If the documentation has been successfully attached, a box will appear indicating that the process has been 100% completed for each file attached. In this box you can also delete attached files that you do not want to add to your communication before sending it.
  • 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 and you will receive a confirmation email to the email address provided.


  • Please refer all documentation relating to your request  in a single delivery, preferably in pdf format, 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

If you are using the digital certificate or cl@ve service, you will receive an “acknowledgment” in PDF format after the process has been completed. If you do not receive the confirmation message, or if you receive an error or failed sending message, you should resubmit the application at another time or use other channels.

If you use the service without a certificate, you will see an on-screen notice and receive an email to the email address you provided in the e-questionnaire. Therefore, it is very important that you check that this email address provided is correct before you send your communication.

Please also note that your application will not be added to the Electronic Register. 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

Attached documentation
Attached documentation
document name Publication date
Standard representation form (PDF, 1637 Kb) 12/05/2021
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