Bangkok has a growing and increasingly extensive elevated/underground rail network (BTS Skytrain and MRT subway) that covers much of the central business and residential districts, supplemented by buses, river boats, and widely used Grab ride-hailing. Outside Bangkok, public transit is far more limited — Chiang Mai, Phuket, and Pattaya rely mainly on songthaews (shared pickup-truck taxis), motorbike taxis, tuk-tuks, and Grab, making a personal vehicle (car or motorbike) far more common and often necessary for daily life. Foreign residents driving in Thailand need a Thai driving license (convertible from many countries' licenses after an International Driving Permit period) or an International Driving Permit for short stays, and should budget for Thailand's comparatively high road-traffic fatality rate, particularly around motorbike use.
Whether a car/motorbike is a necessity or a nice-to-have depends entirely on the chosen city — this materially affects both budget and daily lifestyle planning.
Key Facts
Bangkok's BTS Skytrain and MRT subway cover most central districts and are the fastest way to avoid the city's notorious traffic congestion.
Outside Bangkok, public transit is limited to songthaews, tuk-tuks, and motorbike taxis; a personal vehicle is often necessary for daily life in Chiang Mai, Phuket, and Pattaya.
Grab (ride-hailing and food delivery) operates nationwide and is widely used by both locals and expats.
Foreign residents can drive short-term on an International Driving Permit, but should convert to a Thai driving license for longer stays, which usually requires a written and practical test.
Thailand has one of the higher road traffic fatality rates globally, disproportionately involving motorbikes — helmet use and caution are strongly advised.
Steps
Assess transit needs by city — Bangkok residents can often live car-free using BTS/MRT/Grab; other cities generally require a personal vehicle.
Obtain an International Driving Permit before arrival — Get an IDP from your home country before traveling, valid for short-term driving in Thailand.
Convert to a Thai driving license — For longer stays, apply for a Thai driving license at the local Department of Land Transport office, generally requiring a written test, eye test, and sometimes a practical test.
Required Documents
International Driving Permit (for short-term driving)
Passport and visa/residency documentation
Medical certificate (for Thai driving license application)
Common Mistakes
Assuming an International Driving Permit is valid indefinitely — it's intended for short stays; long-term residents should get a Thai license.
Renting or riding a motorbike without proper licensing or insurance — many travel insurance policies exclude motorbike accidents without a valid Thai/international motorcycle license.
Underestimating how car-dependent life is outside Bangkok when choosing a home location.