Pick your country and what you intend to drive. You will get the specific answer for you, not the generic one — because the correct International Driving Permit for Thailand genuinely differs by nationality, and most English-language advice on this is years out of date.
Can you legally drive in Thailand?
Why the answer depends on your nationality
Thailand is a party to both of the international road-traffic conventions: the 1949 Geneva Convention, which it acceded to in 1962, and the 1968 Vienna Convention, which it ratified in 2020 and which entered into force for Thailand on 1 May 2021.
They do not stack. Article 48 of the 1968 Convention terminates and replaces the 1949 Convention as between states that are party to both. So which permit Thailand recognises from you depends on which conventions your country belongs to:
- If your country is a 1968 party — the UK, Germany, France, the Netherlands, the Nordic countries and most of Europe — the 1968 permit is the one that applies to you.
- If your country is a 1949 party only — the United States, Australia, Ireland, Canada, New Zealand, Japan — then the 1949 permit is the correct document, because Thailand remains bound to the 1949 Convention in its relations with those states.
This is why an American who reads that "Thailand is a 1968 country" and then finds that AAA only issues a 1949 booklet has not found a problem. The 1949 booklet is right for them. In practice you can only obtain whichever permit your own country is able to issue — which is, by definition, the correct one.
One dead end worth naming: Article 43 of the 1968 Convention gave 1949-format permits equal treatment inside the 1968 system, but only for five years from entry into force — a window that closed in 1982. Anyone still citing Article 43 is quoting a transitional provision that expired over forty years ago. The reason a 1949 permit works for an American in Thailand is Article 48, not Article 43.
The scooter trap
A car entitlement does not cover a scooter, whatever the rental shop says. When Thailand joined the 1968 Convention it filed a declaration under Article 54(2) that it treats mopeds as motorcycles. There is no small-engine exemption, and under both conventions category A is a single motorcycle category with no sub-division by engine size.
So "it is only a 110cc automatic" is not an argument that survives contact with either the treaty or your insurer. The shop will still hand you the keys — the commercial transaction and the legal entitlement are completely decoupled, and the gap between them only becomes visible when you make a claim.
That is the chain this whole site keeps returning to: entitlement, then permit, then cover, then claim. Break the first link and the last one fails. See what voids your motorbike insurance.
What else to carry
An International Driving Permit is a translation of your national licence, not a substitute for it — carry both. The UK Foreign Office says so explicitly for British drivers, and the same logic applies everywhere. Validity differs between the two formats: a 1949 permit runs for one year from issue, a 1968 permit for three years or until your national licence expires, whichever comes first, with the date printed on the cover.
If you are staying long enough for that to become awkward, a Thai driving licence is more straightforward to obtain than most people expect and removes the question permanently.
Will the rental shop check any of this?
Usually not. Shops rent to people with no motorcycle entitlement every day. That tells you about the shop's commercial appetite, not about your legal position or your insurance cover.
Do the police check?
Sometimes, at checkpoints. But the expensive consequence is not the fine — it is a rejected insurance claim after a crash. See police checkpoints.
Can I get an IDP after I arrive in Thailand?
No. An International Driving Permit is issued by the country that issued your licence, and it must be obtained before you travel. Any service offering to sell you one in Thailand is not offering a genuine permit.
Does engine size change which category I need?
No. Under both conventions, category A is a single motorcycle category covering everything from a moped upwards. There is no small-engine sub-category.
What if my country is not in the list?
Choose "somewhere else" above. The practical rule holds everywhere: your national motoring organisation issues whichever permit your country is party to, and that is the one to carry.