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Application to modify a creditor in the Social Security system < Go back

This service allows you, via Electronic Register, to deregister or communicate/modify details of a creditor in the Social Security system.

About this procedure

Who it is for

Creditors in the Social Security system who appear as registered,  in compliance with the regulations.

What you can do

  • Submit an Electronic Register application.
  • Download and attach an application form.
  • Attach documentation.

What you need to do this

  • Complete and attach application form TOPFR.002.
  • Attach all documents listed in the instructions on the form.
  • In the event of a change in bank details, attach a bank certificate issued by the financial institution through which the Social Security Treasury General makes payments, stating the holder of the account and the customer account code or IBAN/BIC.
  • Have software that enables you to fill in and save the application form to be attached.

Please note

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

Next steps

Once the process has been completed, you will receive a “proof of receipt” in PDF format.


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.

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

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