For a new email to log on to the site, you must send an email to portal-senhas@at.gov.pt with the email address associated with your taxpayer number (NIF), according to the Tax Authority (AT).


"'I don't remember my access password and I don't know the answer to the security question I chose'. What do I do? You must send an email, using the same email address that is associated with your taxpayer number, to: portal-senhas@at.gov.pt", says AT, in a post shared on Facebook.