- Online, at autenticacao.gov.pt — with a card reader and the authentication PIN of the Cartão de Cidadão (Citizen Card), or via an activation video call.
- In person — at a participating service desk (Espaços do Cidadão, Lojas de Cidadão), only with your mobile phone and the Cartão de Cidadão.
- After activation, choose a 4‑digit PIN and you can access public services using your mobile number + PIN + the code sent by SMS.
- It is free and works with Segurança Social Direta (Social Security Direct), Portal das Finanças (Tax Authority portal), SNS (National Health Service), ePortugal (public services portal) and dozens of other services.
Automatically translated. Always confirm on the official Portuguese source.
Official sources
1. Chave Móvel Digital — Autenticação.gov.ptCall — Autenticação.gov.pt (AMA): 300 003 990 ou 210 489 010 — dias úteis, 9h–18h