Thailand on a Chinese Licence — You Switch to the Left, and the IDP Is Mandatory

Thailand rewards the self-drive traveller — islands, mountain loops, beaches the minibuses skip — but for a Chinese driver two things have to be right before you turn the key, and neither is the speed limit.

The IDP is not a formality here

You must carry an International Driving Permit with your Chinese licence. This isn’t the soft “recommended” you see for parts of Europe — Thai rental desks will refuse the car without it, your insurance leans on it, and a checkpoint stop without one means a fine. Apply at home before you fly; there is no way to obtain an IDP once you’ve landed. Keep the IDP, your national licence and your passport together. You can confirm exactly what your licence needs through our driving permit checker.

You’re crossing to the left

China drives on the right; Thailand drives on the left, and that single reversal is the thing most likely to catch you out. The danger isn’t the motorway — it’s the reflexes: pulling out of a fuel station, judging a roundabout that now flows clockwise, glancing the wrong way at a junction. Layered on top is Thailand’s relentless motorbike traffic, which threads through gaps on both sides. Take your first hour somewhere quiet, mirror-check deliberately, and don’t trust muscle memory until it resets.

Speeds and the alcohol limit

Town limits sit at 50, rural roads 90, motorways 120 — broadly familiar from home. The drink-drive limit actually relaxes to 0.05 BAC from China’s stricter 0.02, but with roadside breath checks common, treat it as zero anyway. A speeding penalty typically runs THB 500–1,000 (≈ €13–26); estimate yours with the speeding fine calculator.

Fuel is around $1.25/litre, and the emergency number is 191. Read the full ruleset on our Thailand driving guide before you collect the car.