The Portuguese identity card, known as the Cartão de Cidadão, is the official identification document for Portuguese citizens. It includes personal details, a photo, and biometric data. This card is essential for accessing public services, banking, and travel within the EU. Residents can apply at citizen shops (Loja do Cidadão) or municipal offices. Renewals and first-time applications require proof of identity and residency. Foreign residents may need a residence card instead. Processing times vary, so applying early is advised. identity card portugal