In Lisbon, tipping taxi drivers is a supportive gesture but is not a "hard-fail" requirement as it is in North America. The "Gold Standard" practice is simply to round up the fare to the nearest Euro; for example, if your ride is €7.40, giving the driver €8.00 and saying "keep the change" is perfectly appropriate. If the driver provides supportive help with heavy luggage or offers exceptional local tips, a tip of €1 to €2 is considered generous and highly appreciated. For ride-sharing services like Uber or Bolt in 2026, you can conveniently add a tip through the app after your journey. Tipping in Portugal is generally seen as a voluntary way to show gratitude for a smooth, high-fidelity trip rather than a mandatory obligation. While locals may not always tip for short "point-to-point" hops, as a traveler, a small tip is a supportive way to acknowledge the driver's service in Lisbon's notoriously narrow and hilly streets.