You can hold the keys, the bike and the Green Book and still own nothing. In Thailand, legal ownership lives in the Department of Land Transport database and nowhere else. A transfer needs both parties' documents, a physical inspection of the machine, and proof of address for foreign buyers. Budget a few thousand baht in fees. Before any of that, check the bike can be registered at all.
Takeaways:
- Match the chassis and engine numbers on the bike to the Green Book before you pay.
- Avoid invoice-only motorcycles. They have no Green Book, and getting one is, in practice, prohibitively difficult.
- Foreign buyers need a Certificate of Residence from Immigration, and it has a short shelf life.
- The bike itself must pass a DLT inspection. Aftermarket exhausts and tail tidies are the usual reason big bikes fail.
- A same-province transfer is a single visit. Cross-province means moving the registration out of one office and into another.
What the Green Book actually proves
The lem kiew (เล่มเขียว) is the registration booklet issued by the Department of Land Transport. It is the legal identity of the motorcycle. Inside it records the registration number, the chassis and engine numbers, engine displacement, colour, the first registration date and the list of registered owners.
Holding the booklet is not ownership. The name on the current ownership page is what counts, and that name only changes when a transfer is submitted and processed at a DLT office. A signed receipt, a bank transfer screenshot and a set of keys prove nothing about who owns the machine.
Until the transfer goes through, the bike is still legally the seller's.
Before you pay: the five checks that protect your money
Treat the paperwork as a pre-purchase inspection, equal in weight to checking the brakes. The expensive mistake is buying the wrong bike, not filling in the wrong form.
Match the numbers physically. Take a torch. Read the chassis number stamped on the frame and the engine number on the casing, then compare both against the Green Book. They must match exactly.
Check who is actually selling. The current registered name should be the person in front of you. If it is not, there needs to be a documented, unbroken chain of signed transfer papers covering the gap.
Check the road tax record. Annual road tax (pasi) left unpaid for three or more consecutive years means the DLT cancels the registration number. Recovering from that involves back taxes, fines and a full re-registration, all of it on your time and your money.
Confirm it is a Green Book bike, not an invoice bike. If the seller cannot produce the booklet, there is no sale worth making. See the next section.
Look at the ownership history. Count the previous owners and look for gaps or odd jumps in the timeline. Anything you cannot explain is worth a direct question before you commit.
The invoice bike trap
Some big bikes are advertised cheap as invoice-only, or rot invoice. These are grey-market machines that were historically brought into Thailand as spare parts rather than complete vehicles, which sidestepped the customs and excise charges on a finished motorcycle. What the owner holds is a customs import invoice or an excise receipt, the sanphasamit (สรรพสามิต).
That receipt is proof that tax was paid. It is not a registration document, and it does not make the bike road legal.
Under current rules, turning an invoice-only bike into a Green Book vehicle is at best prohibitively expensive and for an individual buyer effectively out of reach. No Green Book means no plates, no legal use on public roads and a real risk of the bike being impounded. The resale market is limited to the next person willing to make the same mistake.
If a seller tells you the conversion is straightforward, treat that as the end of the conversation.
Documents you need for a transfer
Gathering paperwork is a sequencing problem. A Certificate of Residence from Thai Immigration is generally valid for 30 days from issue, so collect it last, not first.
You will also need your arrival record. For most arrivals this is now a digital entry record rather than the old paper TM6 card, so print the confirmation and ask your local immigration office what it currently expects to see.
| Buyer provides | Seller provides |
|---|---|
| Original passport | Original Green Book, signed by the registered owner on the transfer page |
| Signed copies of the passport photo page and current visa stamp | Signed copy of Thai ID card (Thai seller) or passport and visa copies (foreign seller) |
| Printed arrival record | Signed Tabien Baan copy (Thai seller) or Certificate of Residence (foreign seller) |
| Original Certificate of Residence from local Immigration, or yellow Tabien Baan or work permit | Signed DLT transfer form (kham khor oan) |
| Signed DLT transfer form | Power of attorney (bai mob amnat) if not attending in person |
The buyer also needs valid compulsory third-party insurance, the por ror bor (พ.ร.บ.), in place for the bike.
The three ways to do the transfer
Direct transfer. Buyer and seller go to the DLT office together, with the documents and the motorcycle, and the transfer is completed on the spot. Choose this unless you have a good reason not to.
Floating transfer, or ohn loy (โอนลอย). The seller signs a power of attorney and the transfer forms, hands over the Green Book, and leaves you to process it alone. The failure modes are predictable. An expired ID or residence certificate, a signature that does not match DLT records, or a seller who has stopped answering messages all leave you holding a bike you cannot register. If floating is unavoidable, take clear copies of every seller document, note their expiry dates, and get the submission done immediately.
Agent or tor ror or service. A licensed third party, often a private inspection shop or the dealer itself, handles the submission for a fee. Expect roughly 1,000 to 3,500 THB depending on the province and how complicated the file is.
Inspection day: what the DLT checks on a big bike
The motorcycle has to be at the inspection station. Technicians verify the chassis and engine stamps, usually by pencil tracing or optical scan, then check lights, horn, indicators, mirrors, tyre wear and exhaust noise.
Big bikes fail more often than scooters, and almost always for the same reasons. Straight pipes and decat systems draw attention on the noise check. Tail tidies that lose the plate light or the rear reflector get picked up on the walkaround.
Enforcement varies by inspector. Some will pass a branded can with the baffle fitted. Others want the original exhaust and nothing else. The reliable play is to refit the OEM parts for the appointment, and to insist on getting the original exhaust included when you buy a modified bike.
What it costs
The transfer itself is cheap. The variable is stamp duty, which the DLT calculates from its own valuation table rather than the figure on your receipt. The appraiser has the final word on the assessed value.
| Item | Approximate cost |
|---|---|
| DLT application and transfer fee | 100 to 250 THB |
| Stamp duty | 0.5 percent of assessed value, around 500 THB per 100,000 THB |
| Compulsory insurance (por ror bor) | Around 645 THB per year for bikes over 125cc |
| Annual road tax (pasi) | Around 100 to 200 THB per year, depending on displacement |
| Certificate of Residence | 200 to 500 THB government fee, varying by province |
Private agents handling an express residence certificate typically charge between 1,000 and 2,500 THB. Treat every figure here as approximate and confirm current rates at your local office.
Doing this on the Eastern Seaboard
Most Thailand transfer guides are written around 125cc scooters in Bangkok or Chiang Mai. The sequence is the same here, but the geography of the day is different.
Riders in Sattahip and the Pattaya area generally use the Banglamung DLT branch at Nong Pla Lai, while the Chonburi office serves the rest of the province. Certificates of Residence for the Pattaya area come from Jomtien Immigration. Go there first, ask in advance exactly which proof of address the office wants, and only then book the DLT visit. The certificate's 30-day validity means there is no benefit in getting it early.
Ride the bike to the DLT. It has to be there in person.
Cross-province transfers add friction. A bike on Bangkok or Chiang Mai plates bought by a Chonburi resident who wants local plates needs a two-step process: a formal move-out request at the registered province, then a move-in and new plate issue at the destination office. It takes longer than a same-province transfer, so plan for more than one trip. Offices and procedures do change, so call the branch before you load up the day.
Buying from a shop versus a private seller
Private sales are often cheaper and plenty of them go smoothly. The risk sits in the floating transfer, and it is sharpest when the seller is an expat packing up to leave the country.
A reputable shop screens the Green Book, checks the engine and frame numbers before the bike goes into stock, and handles the DLT submission. That removes the scenario where a signature mismatch surfaces a week after the seller's flight. Ask to see the Green Book yourself anyway.
The showroom at Bikers Cafe Thailand in Sattahip sells used bikes. If you are buying privately, you are welcome to stop by the workshop and have the obvious inspection items checked, mirrors, exhaust and chassis stamp included, before you join the queue at the DLT.
FAQ
Can a foreigner own a motorcycle in their own name in Thailand?
Yes. Non-Thai nationals can legally own and register a motorcycle in their own name, provided they can supply a Certificate of Residence from Immigration, a yellow Tabien Baan, or a Thai work permit showing their address.
What if the seller has already left Thailand?
If their signed documents or ID copies have expired, or a signature does not match DLT records, the transfer stalls. You need freshly signed paperwork from the seller, which is difficult once they are gone. This is the main argument for a direct transfer.
Can I transfer a bike on a tourist visa or visa exemption?
Acceptance varies by office. Some provincial immigration offices issue a Certificate of Residence to short-stay visitors, others require a long-stay permission. The same inconsistency affects newer categories such as the DTV. Confirm with your local Immigration and DLT offices before you buy.
What happens if road tax has not been paid for years?
Three or more consecutive unpaid years and the DLT cancels the registration number. Putting it right means back taxes, fines and a complete re-registration.
Do I need the bike there in person?
Yes. The motorcycle must be presented at the DLT inspection station so technicians can verify the chassis and engine numbers against the book.