How to amend RETA activity. You can amend your registration if there was a mistake when you registered, or when you change your self employed activitity.
With Digital Certificate, Cl@ve Pin or Username/Password from the INSS.
Remember that you can change the language with the dropdown menu top right of the page.
Don´t forget that you have to inform Hacienda of the change as well, through form 036.
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