One of the great things about living in Thailand is that it is a great country for road trips. From the cool mountains in the north to the beaches of the south, the roads are excellent. Thailand is really a wonderful place for driving.
Having said that, being able to have the flexibility to explore Thailand’s immediate neighbors by road is also a great option to have. Thailand has a number of international agreements with Singapore, Malaysia and Laos which allow Thai cars to enter fairly easily, with minimal paperwork. These agreements allow for vehicles from each of these countries to be insured and temporarily registered on a reciprocal basis.
Thailand and Cambodia however only have a limited agreement to allow for limited crossings by commercial vehicles, a formal agreement for passenger vehicles doesn’t exist.
This doesn’t mean however it isn’t possible for Thai registered passenger cars to enter Cambodia. It is very much possible, though there are a couple of caveats to doing so.
Things to think about before taking your car to Cambodia.
A limited number of crossing points for Thai vehicles
There are 7 registered land crossing points between Thailand and Cambodia, but only three that allow that allow Thai vehicles to enter. These are:
- Koh Kong (KH)/Hat Lek (TH)
- O’Smach(KH)/Chong Jom (TH)
- Anlong Veng (KH)/Chong Sa Ngam (TH)
Source: Carnaby Travel
Most people travelling to Cambodia from Thailand will probably be heading in one of two directions. Along the Gulf of Thailand to the south, to destinations such as Koh Kong, Sihanoukville, Kampot and then onwards to Phnom Penh are one popular route.
The other, and most popular route, is travelling to Siem Reap and the World Heritage listed Angkor Wat. At less than 400km from downtown Bangkok, the most logical route to Siem Reap would be via the Cambodian border crossing (and casino mecca) of Poipet.
However, at the time of writing this article (and for decades before this) it worth noting that Cambodian officials won’t let individual Thai passenger vehicles enter there.
Why this is so remains a mystery, but there are some interesting web-theories out there involving certain airlines lobbying the Cambodian government not to allow Thai cars to enter at Poipet as killing the short but lucrative air route. To date, the only Thai vehicles which are allowed to enter via Poipet have been part of official multi vehicle driving tour convoys (or ‘caravans’ as they are called in Thai) which formally been pre-arranged via the Cambodian embassy and the Ministry of Transport in Phnom Penh. It’s a cumbersome process, and, if you are an individual traveller, its really not worth the hassle.
Note however, while you may not be able to enter Cambodia at every check point, you can very easily exit Cambodia from any check point you wish. As such if you’ve gone to see Angkor Wat and returning to Bangkok, its entirely possible to re-enter Thailand at the Poipet/Aranyaprathet crossing.
This point is okay for some, but a trip killer for others, so just be warned.
When you take a car into Malaysia, Laos or Singapore, there will be local insurance providers who will be able to provide you with (at minimum) a third party comprehensive insurance policy so you know that if you have an accident, any damage you might cause is covered.
Cambodian companies don’t offer this to Thai vehicles, and though it was talked about many years (and there is even a fancy ASEAN website (https://www.aseancob.org/) about this issue), the fact remains no Thai or Cambodian insurers will cover your personal vehicle while you are there. Trust me, I’ve tried!
You will need to own your vehicle
The key document to get your car over the border is the blue car ownership book. The customs officials at the border will ask for it to process your temporary export forms. Without these, you won’t be able to take the car out of the country.
To be in possession of the blue book, you’ll need to own your car outright. This means – no loans or caveats on your vehicle – and the car can’t be under finance. You need to be the actual owner, or have permission from the owner to take the car across the border via a completed power of attorney form (แบบฟอร์มใบมอบอำนาจ กรณีมอบให้บุคคลอื่นดำเนินการแทน).
Taking your car across the border
Taking account of the issues above, below I’ll outline what documents you need to prepare so you can you’re your Thai registered card into Cambodia.
I took my car in via O’Smach on the north across from Surin province as it had the best to access Siem Reap and Angkor Wat. Crossing from Trat province in the south is great if you want to access Sihanoukville. I’ve taken my Thai vehicle across the border three times now, having driven from Bangkok to Siem Reap in 2015, 2017 and 2022 when I went to run in the Angkor Wat half marathon. On each occasion I entered via O’Smach border.
- TM2 form (Information on Conveyance) and TM 3 (Passenger List) forms
- Your blue car ownership book
- Your passport
When you arrive at the border, first give these all to the immigration booth. You’ll then be stamped out of Thailand, and be given ‘Simplified Customs Declaration Form’. You will need to keep this safe and hand it back to customs when you return to Thailand.
Having used the O’Smach crossing many times before Covid, a few things have changed since the border reopened. It used to be that once you had your Thai exit documents in order, the Cambodian side didn’t care and just let you drive straight in once you stamped your passport.
Cambodia now issues you with temporary import/export documents for your vehicle and you need to nominate what border you’ll exit by. You can do all of this online before you arrive via the General Department of Customs and Excise of Cambodia website, which should be easy to access and register for. However you still may need assistance from customs officials on the Cambodian side.
Also, they have also started charging 100 baht per day for each day your vehicle enters which has never been done before.
How they keep track of this exactly, I don’t know but you can probably get away with paying a few hundred baht and then staying much longer. The Cambodian side will also ask to keep your blue ownership book. This makes sense if you are returning via the same border post, but if you aren’t, let them know and they will take a copy. This works for O’Smach at least, but I can’t vouch for other border posts.
Returning to Thailand
Coming back, we exited via Poipet. While the Cambodian’s don’t let Thai private vehicles enter there, they do let you exit – so it’s fairly straight forward to give your paperwork back at the customs office, get stamped out. Crossing back into Thailand, the registered driver of the car can get stamped back in via the main booth for cars, while all other passengers have to go via the normal immigration queues – and at peak times queues can be long!
All in all its a fun trip. We’ve made a video of the process of entering Cambodia from Thailand. I hope you enjoy it!