In 2026, paying for the metro in Portugal—specifically in Lisbon and Porto—has become incredibly simple due to the widespread adoption of contactless payments. In Lisbon, you can simply "tap and go" at the barriers using any contactless bank card (Visa, Mastercard) or a mobile wallet like Apple Pay or Google Pay. Each journey costs approximately €1.92. In Porto, the "Andante" system is used; while you can still buy rechargeable paper cards at kiosks, contactless mobile payment is now the preferred method for occasional users. If you plan on using the system extensively for multiple days, it is still more cost-effective to buy a 24-hour pass (Viva Viagem in Lisbon) or use the "Zapping" method (pre-loading credit on a card), which offers slightly lower per-ride fares compared to the standard contactless rate. Note that you must tap your card both when entering and exiting the barriers to ensure the correct fare is calculated.