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Business in Thailand
Comprehensive guide to establishing, structuring, and operating a business in Thailand. Understanding company formation, foreign investment restrictions, and corporate governance.
Key Business Topics
Company Formation
Complete guide to establishing a business entity in Thailand, including company types, registration process, and legal requirements.
Foreign Business Act
Understanding Thailand's restrictions on foreign business activities, licensing requirements, and legitimate pathways for foreign investment.
Director Duties & Liability
Personal liability risks for company directors in Thailand, including fiduciary duties, statutory obligations, and criminal exposure.
BOI Investment Promotion
Thailand's Board of Investment incentives for foreign investors, including tax holidays, FBA exemptions, and work permit facilitation.
BOI Activity Categories Deep Dive
Detailed breakdown of Thailand's Board of Investment (สำนักงานคณะกรรมการส่งเสริมการลงทุน) activity categories A1 through A4 and B1, B2 — including sample qualifying activities and the corresponding corporate-income-tax holiday durations.
Treaty of Amity (US Citizens)
How the US-Thailand Treaty of Amity and Economic Relations B.E. 2509 (1966) lets US citizens and majority US-owned companies operate in Thailand with national treatment, plus its limits and the dual-track application process.
FBA Schedules 1, 2 and 3 Explained
Side-by-side reference to the three schedules of activities under the Foreign Business Act B.E. 2542 (1999) — what is absolutely prohibited, what needs Cabinet permission, and what can be licensed by the DBD.
Eastern Economic Corridor (EEC) Special Incentives
Investment, land-tenure, and tax incentives available under the Eastern Economic Corridor Act B.E. 2561 (2018) covering Chonburi, Rayong and Chachoengsao.
IBC (International Business Centre)
Thailand's International Business Centre tax regime under the Royal Decree on Tax Exemption (No. 674) B.E. 2561 (2018) — 3%/5%/8% corporate-income-tax brackets, substance requirements, and Revenue Department application process.
One-Person Limited Company (OPLC)
Thailand's new One-Person Limited Company structure introduced by Civil and Commercial Code Amendment Act No. 23 B.E. 2566 (2023) — sole shareholder/sole director, filing requirements, advantages, and disadvantages.
Partnership Forms in Thailand
The three partnership forms under the Civil and Commercial Code — Ordinary Partnership, Registered Ordinary Partnership, and Limited Partnership — and when each is appropriate.
Foundation & Association Registration
Setting up a foundation or association in Thailand under the Civil and Commercial Code — for NGOs, charities and professional bodies — including ongoing reporting and foreign-influence considerations.
SET, mai and LiVE Exchange Listing Requirements
Listing prerequisites and ongoing disclosure obligations on the Stock Exchange of Thailand, the Market for Alternative Investment (mai), and the LiVE Exchange for startups.
Mergers and Amalgamations: Corporate-Law Overview
Corporate-law mechanics of mergers and amalgamations under the Civil and Commercial Code as amended in 2023 — board approvals, shareholder votes, creditor notice, DBD filings, and tax-neutrality conditions.
Transfer Pricing Compliance
Thailand's transfer-pricing regime under the Revenue Code Amendment Act (No. 47) B.E. 2561 (2018) — arm's-length principle, related-party disclosure form, contemporaneous documentation, and Country-by-Country reporting.
e-Tax Invoice and e-Receipt System
The Revenue Department's e-Tax Invoice and e-Receipt regime — digital-signature requirements, e-Filing portal enrolment, and integration with monthly PND 30 / VAT filings.
Social Security Registration
Employer and employee obligations under the Social Security Act B.E. 2533 (1990) — Sections 33, 39 and 40 — including registration timeline, contribution rates, and the THB 15,000 contribution-base cap.
Provident Fund, RMF and SSF Overview
Tax-advantaged retirement and long-term savings vehicles — Provident Funds under the Provident Fund Act B.E. 2530 (1987), and Retirement Mutual Funds (RMF) and Super Savings Funds (SSF) under the Revenue Code.
Company Types Comparison
Understanding the available business structures helps you choose the right entity for your investment.
| Structure | Min. Shareholders | Foreign Ownership | Best For |
|---|---|---|---|
| Private Limited Company | Minimum 2 shareholders (can be individuals or legal entities) — reduced from 3 by Civil and Commercial Code Amendment Act No. 23 B.E. 2566 (2023), effective 7 February 2023 | Up to 49% foreign ownership without FBA license; 1... | Foreign investors seeking limited liability |
| Public Limited Company | Minimum 15 promoters to establish, can reduce after incorporation | Subject to same restrictions as private limited co... | Large businesses seeking public investment |
| Branch Office | N/A - extension of foreign parent | 100% foreign owned as extension of parent company... | Foreign companies with specific projects in Thailand |
| Representative Office | N/A - extension of foreign parent | 100% foreign owned... | Market research before major investment |
Foreign Business Act Restrictions
The Foreign Business Act restricts foreign participation in certain business activities. Understanding these restrictions is critical before establishing a business in Thailand.
Prohibited to Foreigners
Completely prohibited. No permits, exemptions, or BOI promotions can override th...
Restricted for National Security & Safety
Cabinet approval required. Very rarely granted. Thai partner with majority owner...
Thai Competitive Advantage
Foreign Business License (FBL) may be obtained. Requires minimum 3 million THB c...
Director Personal Liability
Directors of Thai companies bear significant personal responsibilities and potential liabilities, including for company debts, tax obligations, and regulatory violations. Foreign directors face additional complications including potential immigration consequences.
Related Resources
Need Professional Business Legal Advice?
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Establishing and operating a business in Thailand requires careful legal structuring. Anglo Siam Legal advises on company formation, FBA compliance, and corporate governance.
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