Both the User Number and the Password are obtained by completing the "Registration Form" that is available in the "Enrollment and Registration" menu of the Digital Services VAT Portal that the Servicio de Impuestos Internos (SII) has enabled on its website (sii.cl), and whose content is displayed in English and Spanish.
Once the form is completed, the applicant must send it to the Servicio de Impuestos Internos (SII) using the Send Form option.
To verify the information provided by the taxpayer, the Servicio de Impuestos Internos (SII) will send him a notification by email containing a verification code to validate its email address. After verification, he will receive a User Number and, at the same time he will be able to create his Password, with which he will be able to authentically access all the site’s features. The password can be modified using the Change password option in the "Modify my data" menu.
It is essential to enter a valid email at the time of completing the "Registration Form", since a provisional verification code necessary to create the password will be sent to said email.