How do you ask for a revaluation of your contribution basis-RETA?
As set out in the tenth provision of Order TAS/192/2002, self-employed workers can request the automatic revaluation of their contribution basis. You can make this request through the change contribution basis (Self-employed workers) service. As a result of being personal data protected by the Organic Law on Data Protection, a Class 2 CA digital certificate from the FNMT-RCM which guarantees the security of such data. The e-Office of this website also has information on how to obtain the certificate.