Buying, Owning and Registering a Boat in Thailand
Foreigners can generally purchase and own a boat in Thailand. However, different legal rules apply depending on whether the vessel is privately owned for recreational use or intended for commercial operations. This article provides a general overview of Thai law relating to the purchase, registration and commercial use of boats and other vessels. This article focuses primarily on vessels intended for commercial use under Thai law.
last update July 2026
Purchasing a boat and operating a commercial boating business in Thailand are two different matters. While foreigners may generally own a boat, the commercial operation of a vessel, such as a dive boat, charter boat or tourist vessel, may require additional registrations, licences and compliance with Thai maritime, tourism and business laws.
This article mainly discusses Thai vessels used for commercial operations. Different rules may apply to privately owned recreational boats and foreign-registered yachts visiting Thailand temporarily.
Thai and Foreign Registered Vessels
Under Thai maritime law, vessels are generally classified according to their registration as either a Thai vessel or a foreign vessel. Different rules apply to ownership, registration and commercial operation.
A foreign-registered vessel may generally be brought into Thailand on a temporary import basis under the Customs regulations. Temporary importation is normally granted for a limited period and is not treated as a permanent import, provided the applicable customs requirements are satisfied. Depending on the circumstances, the importer may be required to provide a customs guarantee or other security.
Foreign-registered vessels are generally intended for private use, cruising, sport or tourism. They are normally not permitted to engage in commercial operations in Thailand unless the applicable legal requirements have been satisfied.
Apart from the applicable Customs and immigration requirements, foreign-registered vessels are generally not subject to Thai vessel registration requirements while temporarily visiting Thailand.
Benefits of Registering a Thai Vessel
The principal advantage of registering a vessel as a Thai vessel is that it may qualify to engage in commercial operations in Thai waters, subject to the applicable maritime and other regulatory requirements. A vessel that qualifies for Thai registration but has not been registered cannot enjoy these rights, although certain provisions of the Thai Vessel Act may nevertheless apply.
Requirements
Mechanically propelled vessels intended for commercial operation in Thai waters are subject to the registration requirements of the Thai Vessel Act. Smaller recreational boats may not require Thai vessel registration but may instead require a boat permit, depending on their size and intended use.
As a general rule, a foreign individual cannot register a commercial Thai vessel in his or her own name. Thai law requires the registered owner of a Thai vessel engaged in commercial operations to be either a Thai national or a juristic person qualifying under Thai law.
Marine Department Registration
The Marine Department is the principal government authority responsible for the registration and regulation of Thai vessels. Applications for vessel registration, inspections and the issue of vessel permits are administered by the Marine Department in accordance with the Thai Vessel Act and related regulations.
Owning a Thai Vessel Through a Thai Company
Where Thai law requires a vessel engaged in commercial operations to be owned by a Thai juristic person, foreigners often consider acquiring the vessel through a Thai limited company. However, the company must satisfy the requirements of the Thai Vessel Act and other applicable laws. A Thai company may not be used merely as a nominee arrangement to circumvent restrictions on foreign ownership.
In order to qualify as the owner of a Thai vessel, the company must satisfy the following requirements:
- At least 50% of the directors must be Thai nationals.
- The company's Articles of Association must not permit the issue of bearer share certificates.
- At least 70% of the share capital must be held by persons who are not regarded as aliens under the Foreign Business Act. See Sections 7 and 8 of the Thai Vessel Act.
Sale and Purchase Documentation
Once a suitable vessel has been identified, the purchaser should ensure that an appropriate sale and purchase agreement is prepared. The agreement should clearly identify the vessel and specify the rights and obligations of both parties.
Depending on the vessel, the agreement should include details such as:
- Registration number (where applicable).
- Hull identification and engine details.
- Inventory of equipment included in the sale.
- Purchase price and payment terms.
- Delivery arrangements and transfer of possession.
- Risk of loss before and after delivery.
- Any warranties provided by the seller.
Where the sale includes the transfer of an existing crew, the purchaser should verify that the applicable requirements of the Thai Vessel Act are satisfied, including any nationality requirements for crew members engaged on a Thai commercial vessel.
Warranties
When purchasing a new vessel directly from the builder or dealer, the purchaser should carefully review any express warranties provided by the seller. In addition, the contract may contain implied warranties concerning the quality of the vessel and its suitability for its intended purpose, depending on the applicable law and the terms of the agreement.
An express warranty covers specific representations made by the seller concerning the vessel. Common examples include warranties relating to the condition of the hull, engines, equipment and construction.
Important implied warranties may include merchantability and fitness for a particular purpose. These warranties are intended to ensure that the vessel is reasonably suitable for its ordinary use or for a particular purpose where the seller knew that the purchaser relied on the seller's expertise.
Registration of a Thai Vessel
Before a vessel can be registered as a Thai vessel, it must normally be inspected by the competent Marine Department official. If the vessel satisfies the applicable technical and legal requirements, a certificate of inspection or other required documentation will be issued.
The purchaser should then submit the registration application to the competent Marine Department office together with the required supporting documents. Depending on the circumstances, these may include:
- Evidence of ownership, such as a sale and purchase agreement or builder's certificate.
- Certificate of inspection.
- Photographs of the vessel.
- Identification documents of the owner or company representatives.
- Company registration documents (where the owner is a Thai company).
- Power of Attorney, if an authorized representative acts on behalf of the purchaser.
- Any additional documents required by the Marine Department.
Once the application has been approved, the Marine Department will issue the vessel registration documents and any permits required under the applicable regulations.
Importing and Registering a Foreign Vessel in Thailand
Where a foreign-registered vessel is to be permanently registered as a Thai vessel, the vessel must first be formally imported into Thailand in accordance with the Customs legislation before registration with the Marine Department can take place.
Import duties, VAT and other taxes applicable to imported vessels are determined by the Customs legislation in force at the time of importation. Tax rates and exemptions have changed over the years and should always be verified before commencing the import process.
Following importation, the owner will normally require the Customs import documentation together with the documents required by the Marine Department before Thai registration can be completed.
De-registration of a Foreign Vessel
Before a foreign-registered vessel can generally be registered as a Thai vessel, the vessel must normally be removed from the foreign register in accordance with the laws of the country where it is currently registered.
The exact de-registration procedure depends on the country of registration. The Marine Department may require evidence that the foreign registration has been cancelled together with certified translations of any foreign-language documents where applicable.
As with most applications submitted to Thai government authorities, documents issued abroad may need to be translated into Thai and legalized or otherwise certified in accordance with the applicable legal requirements.
Practical Advice
Foreigners intending to operate a commercial vessel in Thailand should seek legal advice before purchasing a vessel. The legal requirements for ownership, registration and commercial operation vary according to the type of vessel and the intended business activity, and may involve the Marine Department, Customs Department and other government authorities.
Ongoing Compliance
Where a Thai vessel is owned by a Thai limited company, the company must continue to satisfy the ownership and management requirements of the Thai Vessel Act. If the company subsequently becomes disqualified, interested parties or the public prosecutor may apply to the court for an order requiring the sale of shares to qualified persons in accordance with the Act.
Similarly, where the composition of the company's directors no longer complies with the requirements of the Thai Vessel Act, the company must notify the competent Marine Department within the prescribed period. Failure to restore compliance may result in the cancellation of the vessel registration.
During the validity of the vessel registration, the owner should ensure that all documents required by the Thai Vessel Act are kept on board the vessel. Depending on the type of vessel, these may include the certificate of registration, vessel permit, inspection certificate, crew documentation and other records required by law. Vessel permits should also be renewed as required by the applicable regulations.
Compliance with the Thai Vessel Act is an ongoing obligation. Meeting the legal requirements at the time of registration alone is not sufficient if the ownership or management structure subsequently changes.
Conclusion
Buying a boat in Thailand is generally straightforward. Registering and operating a vessel under Thai law, particularly for commercial purposes, is considerably more complex. In addition to the sale and purchase agreement, purchasers should carefully consider ownership, registration, licensing and ongoing compliance requirements before completing the transaction.
When purchasing a second-hand vessel, the purchaser should verify the vessel's registration, ownership history and whether the vessel is subject to any mortgage, lien or other encumbrance. Care should also be taken to ensure that all registration documents are correctly transferred to the new owner.
Where the vessel will be used commercially, legal advice should be obtained before the purchase is completed, as additional requirements may apply under the Thai Vessel Act, the Foreign Business Act and other applicable legislation.
Frequently Asked Questions
Can a foreigner own a boat in Thailand?
Yes. Foreigners can generally purchase and own a boat in Thailand. However, different legal rules apply depending on whether the vessel is intended for private recreational use or commercial operations. Additional requirements apply where a vessel is to be registered as a Thai commercial vessel or used for commercial activities in Thai waters.