Y SEGURIDAD SOCIAL
Application to change contribution bases
Initially, you can go to a Social Security General Treasury 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.
|TC4005 Application to change contribution base||| | | |||434 Kb||26/04/2018|