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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. 

 

 

DocumentFile DownloadFormatSizeDate
TC4005 Application to change contribution base Open the document:TC4005 Solicitud cambio base de cotización in Spanish. The document will open in a new window. | Open the document:TC4005 Solicitud cambio base de cotización in Catalan. The document will open in a new window. | Open the document:TC4005 Solicitud cambio base de cotización in Galician. The document will open in a new window. | Open the document:TC4005 Solicitud cambio base de cotización in Basque. The document will open in a new window. | Open the document:TC4005 Solicitud cambio base de cotización in Valencian. The document will open in a new window. PDF 434 Kb 26/04/2018

                              




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