Who can use the Thailand–US Treaty of Amity and which documents are needed?

The issue to settle here is “Who can use the Thailand–US Treaty of Amity and which documents are needed”, so it covers both the requirements attached to this document set and the order the steps must follow. Once the set is complete, check it line by line against the destination's own checklist before filing. The terms that frame this page are Thailand–US · Treaty · Amity · documents. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. A key variable is the filing channel (in person, agent or online), which sets the copy format to prepare. Before starting, ask in advance which category of certified translator the destination accepts, then plan the timeline so certification finishes before the real filing deadline, then keep a digital copy of every page, including seals and signatures. Public holidays and embassy closures move certification queues more than most people expect. When several certification layers are required, start with the slowest one. If the receiving body confirmed its requirements by email, keep that message with the file. Record the reference number of each certification layer; it is the fastest way to trace status. A change of address or director usually has to be recorded on the licence too, not only in the company register. Arrange supporting documents in the order the authority specifies to reduce rejections. When filing for a company, attach current evidence of signing authority. Sector licences have their own statutes, separate from company registration: a factory licence under the Factory Act B.E. 2535 as amended B.E. 2562 (Department of Industrial Works); food, cosmetics and medical device approvals under the Food Act B.E. 2522 and related laws (Thai FDA); a hotel licence under the Hotel Act B.E. 2547; a tourism business and guide licence under the Tourism Business and Guide Act B.E. 2551; and alcohol or tobacco licences from the Excise Department. Registering the company alone does not mean you may open for business. The Treaty of Amity and Economic Relations between Thailand and the United States (1966) allows US nationals and US-majority companies to apply for Treaty of Amity certification and operate many businesses on the same footing as Thai nationals, with certain activities still excluded. The filing requires evidence of shareholder nationality and the parent company's registration papers, which normally must be translated and certified before use in Thailand. VAT registration sits in the Revenue Code: a business whose VAT-liable revenue exceeds 1.8 million baht a year must apply to the Revenue Department (form Phor.Phor.01) and receives the VAT certificate, form Phor.Phor.20. Foreign counterparties and banks routinely ask to see that certificate when opening accounts or signing contracts. Cost and lead time depend on page count, target language, how many certified sets are required and the steps the receiving authority sets, so every file is quoted before work starts. Send scans of every page together with the checklist the licensing authority gave you, via LINE @Thainotary, call +66 094-895-8999 or email contact@thainotary.co.th.

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