Tipping taxi drivers in Phuket is not mandatory or expected in the traditional sense, but it is a widely appreciated gesture of politeness. Most local passengers and tourists simply "round up" the fare to the nearest convenient amount. For example, if the fare is 185 Thai Baht, it is common to hand over 200 Baht and tell the driver to "keep the change." If you have booked a private driver for a full day of sightseeing or if the driver has been particularly helpful with heavy luggage, a more formal tip of 50 to 100 Baht is considered generous and very thoughtful. However, it is important to understand the context of transport in Phuket: prices for taxis and "Tuk-Tuks" are notoriously higher than in Bangkok due to local "cartel-like" pricing structures. Because you are often already paying a premium "tourist" flat rate rather than a metered fare, drivers do not expect a percentage-based tip. If you use ride-hailing apps like Grab or Bolt, which are popular and often cheaper in Phuket, you can choose to add a small tip through the app after the ride is completed. Ultimately, while not a requirement, rounding up is the standard way to show gratitude for a safe and air-conditioned journey on the island.