How to Be an Entrepreneur in Thailand

Thailand has become a compelling base for foreign entrepreneurs: running costs 40 percent to 60 percent below Western markets, deep talent options, BOI incentives with multi-year tax holidays and 100 percent foreign ownership for qualifying businesses, and a real quality of life. But the bureaucracy and paperwork are real too. This guide covers what you actually need to know: company structure, BOI promotion, working legally in your own company, monthly compliance costs, the right city, and the mistakes that end foreign businesses every year.

The Foreign Business Act and Your Other Options

If you don’t qualify for BOI, the Foreign Business Act (FBA) of 1999 restricts foreign ownership to 49 percent in most sectors. Any company 50 percent or more foreign-owned is classified as “foreign” and faces three lists of restrictions: List 1 (completely prohibited, including media and land trading), List 2 (national security and culture, requiring Cabinet approval), and List 3 (sectors where Thais are “not yet ready to compete,” including retail, hotels, restaurants, and most service businesses, requiring a discretionary Foreign Business License). Most SME owners fall into List 3.

Thai Majority Company (51% Thai, 49% Foreign)

The most common structure for businesses that don’t qualify for BOI: a Thai company where Thai nationals hold at least 51 percent of shares, giving you a legitimate 49 percent minority stake. Your Thai shareholders must be genuine co-investors with real capital. Nominee structures, where Thais hold shares on paper while you retain all control, are illegal under the FBA and are being prosecuted at scale, with over 46,000 companies flagged as of early 2026. Don’t do it.

US-Thai Treaty of Amity (Americans Only)

American citizens and US-incorporated companies can hold majority or 100 percent ownership in most sectors under the Treaty of Amity, treated essentially as Thai companies under the FBA. You apply through the US Embassy in Bangkok (a 1 to 2 week process), then register with the Ministry of Commerce. It doesn’t cover List 1 activities, but it covers most List 3 businesses, a straightforward choice if you’re American.

Company Registration

Once you’ve chosen your structure, registration takes 1 to 2 weeks for a standard company, or 3 to 6 months for BOI promotion. A Thai Limited Company requires at minimum two shareholders, one director, and a registered office, and registration is completed online through the DBD Biz Register platform. The steps: reserve your company name (1 to 3 days), prepare the Memorandum of Association, hold the statutory meeting, register with the DBD, register for VAT (if revenue exceeds THB1.8 million a year or you’ll sponsor work permits), and register for Social Security if you have employees.

It’s possible to register yourself, but the whole process is in Thai, so most founders hire an accounting or law firm to do it.

Read more: Our guide to Thailand company registration.

Visa and Work Permit

After you register a company, you can’t work right away, you need a visa and a work permit. The sequence: apply for a Non-Immigrant B visa from outside Thailand, enter on it and apply for a work permit, then extend your Non-B visa.

Good to know: if your company isn’t BOI-promoted, it needs at least THB2 million in registered and paid-up capital and four full-time Thai employees to sponsor your visa and work permit.

Read more: Our Thailand work permit guide.

Monthly Compliance

Operating a company comes with mandatory recurring filings whether you’re generating revenue or not. Monthly: the VAT return (PP30, due by the 15th if VAT-registered, 7 percent on sales and reclaimable on expenses), withholding tax (PND 1, 3, 53), and Social Security (up to THB875 per employee). Quarterly and annual: the PND 51 advance corporate tax, the PND 50 annual return (within 150 days of year-end), and an annual audit.

Corporate income tax is 20 percent standard. SME rates apply if registered capital is under THB5 million and revenue under THB30 million: 0 percent on the first THB300,000 of net profit, 15 percent on THB300,000 to THB3 million, and 20 percent above. BOI-promoted companies pay 0 percent during their tax holiday.

Choosing Your City

Bangkok is the choice for any business that needs capital, corporate clients, or specialized talent, the largest concentration of English-speaking professionals and developers, plus modern offices and multinationals. The trade-off is cost: expect 30 percent to 40 percent more for office space, salaries, and accommodation than Chiang Mai. Best for: businesses seeking corporate clients or investment.

Chiang Mai works for bootstrapped and remote-first companies, operational costs 20 percent to 30 percent lower than Bangkok, good infrastructure, and an established expat scene. But hiring senior specialists, recruiting locally, or raising institutional capital is harder, and burning season hits February to April. Best for: bootstrapped and lifestyle businesses, expat/tourism services.

Phuket suits hospitality, tourism tech, wellness, and marine businesses serving high-net-worth clients, improved infrastructure and a real international community, but higher costs and a very small local ecosystem. The Eastern Economic Corridor (EEC) (Chonburi and Rayong) offers strong BOI incentives for manufacturing, logistics, and industrial operations.

Banking and Money

Opening a corporate bank account has become harder. The major banks (Bangkok Bank, Kasikorn, SCB, Krungthai) increasingly expect directors to hold a long-term visa (Non-B plus work permit) before approving a corporate account, so you may be rejected while still on a tourist visa or mid-application. You’ll typically need the company registration certificate, shareholder list, director passport, proof of office address, and tax ID. When doing business in Thailand, relationships are key, a good relationship with your bank can mean direct manager support that makes managing finances far easier.

Being an entrepreneur in Thailand is achievable, but it’s not the “register a company for a few thousand baht and start working” simplicity of some markets. The founders who succeed treat it like a real business: they budget for compliance, hire professionals, build genuine Thai partnerships, and don’t cut corners on the legal side. The ones who fail treat it like an extended vacation with a side project.

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