
Thai driver's licence, rental cars, road rules, and surviving Bangkok traffic
Driving in Bangkok looks more chaotic than it actually is. Lane discipline is loose, motorbikes weave aggressively between cars, and pedestrians cross unpredictably โ but most traffic moves at 30โ50 km/h during the day, accidents at speed are rare in central districts, and Bangkok drivers are far more patient with each other than the popular reputation suggests. The real friction is congestion, not danger: the 8โ10 km drive from Sukhumvit to the Old City takes 25 minutes at 9 a.m. on a Sunday and 90 minutes at 6 p.m. on a Friday. Plan around that, not around imagined road combat.
If you'll be driving for less than a year and arrived with an International Driving Permit (IDP) from your home country, you don't need a Thai licence โ your home licence plus the IDP is legally sufficient for cars, and adds the motorcycle endorsement if you arranged it. Without an IDP, your home licence alone is technically invalid; expect a 1,000 THB fine if stopped, and your insurance company can void coverage if you have an accident. Many countries (the UK, Australia, the US, Canada, most of the EU) issue IDPs cheaply through their automobile association โ get one before you fly.
For a longer stay, getting a Thai driver's licence is straightforward, cheap, and worth doing. You need a visa that lasts more than 90 days (work permit, Elite, retirement, Non-O marriage, DTV) plus a Certificate of Residence (free from immigration with TM30 receipt) or your work permit. The process at the district Land Transport office takes about two hours total: documents check, a 50-question multiple-choice theory test in English, an eye and reaction-time test, and a brief practical test. The cost is 305 THB for the car licence (105 THB for motorcycle), the first one is valid two years, and renewals are good for five years. It's the same Thai licence used by Thai citizens, accepted everywhere, and means no more carrying the IDP.
50 km/h residential, 80 km/h main roads, 100 km/h expressways (110 on the orbital), 120 km/h BangkokโKorat motorway.
Legal limit 0.05% BAC (0.02% for novice drivers, motorcyclists, and commercial drivers). Police checkpoints common on weekend nights. First offence: 5,000โ20,000 THB + 1 year licence suspension + up to 1 year prison.
Mandatory for all passengers in cars and both rider and pillion on motorcycles. Strictly enforced. Non-compliance: 500โ2,000 THB fine.
Driving licence (Thai or home + IDP), vehicle registration (the blue book or a copy), proof of compulsory motor insurance (Por Ror Bor). Police can ask at any time.
Get a medical certificate from any Thai clinic (100โ300 THB). Bumrungrad and Samitivej clinics are convenient; corner-shop clinics are cheaper.
Translate and certify your home-country licence at your embassy (typical: 200โ500 THB).
Visit your district Department of Land Transport with: passport, visa, work permit or Certificate of Residence, medical certificate, 2 passport photos, translated licence.
Pass the 50-question theory test (multiple choice, English available) and the eye/reaction test. Most people pass first attempt.
Take a brief practical driving test in the office's car park (mostly parallel parking and reverse).
Pay the fee โ 305 THB for car, 105 THB for motorcycle. First licence is valid 2 years; renewals are 5 years.