The Board of Investment is one of the most powerful tools available to foreign entrepreneurs in Thailand. It is also one of the most misunderstood. This guide explains what BOI promotion actually gives you, which business types qualify, how the application works, and when it makes more sense than a standard Thai company.
What the Board of Investment Is
The BOI (สำนักงานคณะกรรมการส่งเสริมการลงทุน) is a Thai government agency under the Office of the Prime Minister. Its mandate is to promote investment that benefits Thailand's economic development by offering approved investors a package of incentives and privileges. BOI promotion is not a visa or residency programme. It is an approval granted to a company engaged in qualifying business activities, providing specific legal and tax benefits for an approved period.
What BOI Promotion Actually Gives You
Full foreign ownership
This is the most significant benefit for many foreigners. BOI-promoted companies in qualifying categories are exempt from the Foreign Business Act restrictions, permitting 100% foreign ownership without a Foreign Business License or Thai majority shareholders. For foreigners who want full ownership without nominal Thai partners, BOI is the primary legitimate route (alongside the Treaty of Amity for US citizens).
Corporate income tax holidays
| Category | CIT exemption |
|---|---|
| A1 | 8-year full exemption, no profit cap |
| A2 | 8-year full exemption, capped at investment value |
| A3 | 5-year full exemption |
| A4 | 3-year full exemption |
| B | No CIT exemption, but non-tax incentives apply |
Some categories receive a further 50% CIT reduction for up to five years after the exemption period. Over an eight-year period on significant profits, the tax saving can dwarf the cost and time of the BOI application process.
Land ownership rights
BOI-promoted companies can own land for use in their approved activities. Foreign-owned companies generally cannot own land in Thailand, making this a significant practical benefit for manufacturing or premises-owning businesses.
Import duty exemptions
BOI-promoted companies can import machinery used in approved activities free of import duties.
Streamlined work permit and visa processes
BOI-promoted companies have access to the One Stop Service Centre for Visas and Work Permits. Additionally, BOI promotion is directly connected to the SMART Visa programme.
Which Activities Qualify
The areas most relevant to foreign entrepreneurs in 2026:
- Digital industries: Software development, digital services, cloud computing, cybersecurity, data analytics, AI, digital content, digital platforms
- Advanced manufacturing: Electronics, automotive parts, aerospace components, medical devices, precision engineering
- Medical and health: Medical device manufacturing, pharmaceutical production, wellness in BOI-designated zones
- Agriculture and food: High-value food processing, agricultural biotechnology, precision agriculture technology
- Financial technology: Payment systems, digital banking, insurance technology, securities technology
- Research and development: R&D centres, innovation centres, technology development facilities
- Education and training: International education and vocational training in targeted skills areas
The Application Process Step by Step
- Preliminary consultation with the BOI Investment Advisory Division. This free consultation establishes whether your activity qualifies, which category applies, and what incentives would be granted. The sensible first step before any investment in preparation.
- Prepare the application. A substantial document including: completed application form, company profile and business plan, investment details (capital, equipment, timeline), five-year financial projections, technology and employment plans, and supporting documents. The quality of the business plan is the most important element.
- Submit and wait for committee review. Statutory processing: within 60 days of acceptance for most applications. The BOI may request additional information or conduct a site visit during review.
- Receive the investment promotion certificate setting out approved activities, incentives granted, and conditions including minimum investment and Thai hiring targets.
- Register the company and meet conditions within specified timelines. The BOI monitors compliance through periodic reporting.
BOI vs. a Standard Thai Company
| Choose BOI when | Choose standard Thai company when |
|---|---|
| Business genuinely falls within a qualifying sector | Business does not fall within BOI sectors |
| Full foreign ownership is important | Quick start needed (BOI takes 3-6 months) |
| CIT holiday is material to financial projections | Business will not generate profit at a scale where the tax saving justifies the complexity |
| Clear investment commitment and credible business plan | Comfortable with Thai majority shareholders in a properly structured arrangement |
For most small service businesses, restaurants, retail operations, and early-stage ventures, the standard Thai company structure is more practical. BOI is the right choice for technology businesses, manufacturing, significant investment projects, and businesses where full foreign ownership and the sector qualify.
BOI and the SMART Visa Connection
BOI promotion unlocks access to the SMART Visa for qualifying investors, executives, and skilled professionals. SMART Visa holders do not need a separate work permit and receive a visa valid for up to four years with multiple entry.
- SMART Visa I (Investor): At least 20 million THB invested in a BOI-promoted entity
- SMART Visa E (Executive): Senior executives employed by BOI-promoted companies at appropriate salary levels
- SMART Visa T (Talent): Highly skilled professionals working in BOI-promoted sectors
Common Rejection Reasons
- The proposed activity does not genuinely fall within a qualifying category
- Business plan is vague about economic benefit to Thailand
- Investment commitment insufficient for the category
- Application incomplete or internally inconsistent
- Activity competes directly with established Thai businesses without differentiated technology or value