The following application forms are valid if printed; they can be filled out on the screen.

If you have a digital certificate you can submit form TC.13/1 Application for Return of undue payments,through the Return of undue payments under the General Scheme and Similar procedure, found in the Social Security e-Office or by going to a Social Security Treasury General Administrative Office.

Application to change contribution bases: Special Regime for Self-employed Workers and Special Agreements

Initially, you must go to a Social Security Treasury General Office in order to process your application. Subsequently, you will be able to process your application directly through the Application to change contribution basis (self-employed workers) orApplication to change contribution basis (special agreements) services, through the Social Security e-Office, if you have a digital certificate or username/password.

Bullfighting professionals: Annual declaration of the activities of the professional bullfighting group. General Scheme.

This form shall be used to declare all the actions shown in documents TC 4/5.

Deferment of the payment of Social Security debts. Application Forms

Application for Moratorium/Deferment/Exemption from  Social Security Payments. Measures for Catastrophic Events