Why the Treaty of Amity still matters in 2026
The Foreign Business Act (FBA) B.E. 2542 blocks foreign majority ownership in most service and trading categories. Americans are the only nationality with a bilateral treaty that overrides this restriction — a strategic advantage no other Western passport offers in Thailand.
For a US software consultancy, marketing agency, engineering firm or e-commerce operation in Phuket, Treaty of Amity is faster than BOI (no promotion application, no reporting), cheaper than an FBL (no THB 3M FBL fee and no case-by-case cabinet approval), and permanent (no annual renewal).



