Portugal’s Tax Authority has introduced Two-Factor Authentication (2FA) on the Finance Portal, starting with individual taxpayers, to enhance account security and prevent unauthorized access. Users will log in using their NIF, password, and a unique SMS code, provided they have a registered phone number with the authority.
Portugal strengthens Finance portal security with Two-factor authentication.
Public
Portugal
Author: Nikolina Basić
Category:
Fiscal subject related
Views:
37
Content accuracy validation date:
17.07.2025
Content accuracy validation time:
09:24h
The Portuguese Tax Authority (AT) has introduced Two-Factor Authentication (2FA) on the Finance Portal to improve account security. This extra verification step will help protect users from unauthorized access and credential theft.
The rollout will be gradual:
· Phase 1 targets individual taxpayers without business or professional activity.
· Later phases will include business users and organizations
Each time users log in, they’ll enter:
· Their NIF and password
· A unique code sent via SMS
To use 2FA, taxpayers must have a confirmed phone number registered with the Tax Authority. If users need to change their phone number, they can do so through the portal or via authentication.gov, using a Citizen Card or Digital Mobile Key.
How to Enable 2FA – the taxpayer will have to go to the Finance Portal menu: Services > Taxpayer Authentication > Access Data.
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