Last updated: January 2026

The words "BOI promotion" get thrown around a lot in Phuket's expat business circles, often with a vague sense that it means "100% foreign ownership and tax-free." That's partially true — but BOI is more nuanced, more selective, and more powerful than most people realise. And it's almost certainly not available for the business you're thinking of running if you're planning a restaurant, a retail shop, or a standard service business.

This guide explains what BOI actually offers, which Phuket-based businesses can realistically obtain it, what the application involves, and when BOI is worth pursuing versus when a standard Thai Limited Company with a proper shareholding structure is the smarter move.

BOI Promotion in Phuket — Key Facts 2026

  • Administered by: Thailand Board of Investment (boi.go.th)
  • Key benefit: 100% foreign ownership exempt from Foreign Business Act restrictions
  • Tax holidays: 3–8 years Corporate Income Tax exemption (activity-dependent)
  • Work permits: Streamlined via BOI One Stop Service Center, relaxed Thai:foreign ratio
  • Minimum investment: Typically 1 million THB+ in fixed assets (varies by activity)
  • Application time: 2–6 months to approval
  • Who qualifies: Tech, digital, medical, creative industries, R&D, manufacturing — NOT retail, restaurants, most hospitality

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What is BOI Promotion?

Thailand's Board of Investment is a government agency that promotes specific types of investment the Thai government wants to attract — high-tech manufacturing, digital services, medical industries, green energy, and similar categories. In exchange for investing in these activities, BOI offers substantial incentives including exemption from Foreign Business Act ownership restrictions, corporate income tax holidays, and import duty exemptions on machinery and raw materials.

The key distinction: BOI promotion is not a loophole that any foreigner can use to get around Thai ownership laws. It's a genuine investment promotion scheme for businesses that meet specific criteria around activity type, investment scale, and often local employment or technology transfer commitments.

BOI Incentives That Matter Most for Phuket Expats

100% Foreign Ownership

BOI-promoted activities are exempt from Foreign Business Act restrictions. You can own 100% of the company without needing Thai shareholders or a Foreign Business Licence.

Corporate Income Tax Holiday

3–8 years of 0% Corporate Income Tax on promoted activities (activity-dependent). After the holiday, standard rates apply. Represents significant savings for profitable tech businesses.

Streamlined Work Permits

BOI companies access work permits through the One Stop Service Center with far less paperwork and faster processing. The 4:1 Thai-to-foreign employee ratio is also relaxed.

Machinery Import Exemptions

Import duty exemptions on machinery and equipment used in promoted activities. Particularly valuable for manufacturing and high-tech operations.

Which Phuket Businesses Can Get BOI?

This is where many Phuket expats get disappointed. BOI maintains an "Eligible Activities" list (updated periodically) that defines exactly what types of investment qualify. Phuket's economy is dominated by tourism, hospitality, and lifestyle businesses — most of which are explicitly NOT on the BOI list.

Activities that typically DO qualify (relevant to Phuket expats)

Activities that do NOT qualify for BOI

Insider Tip — The "Tech Startup" Route

BOI has specific incentives for startups — particularly tech startups with scalable products. If you're building a software product (not just doing IT consulting), developing a platform, or creating a digital service that can scale without proportional staff growth, you may qualify under the startup promotion scheme. This is one of the more accessible BOI routes for Phuket-based digital entrepreneurs. Consult a BOI specialist rather than relying on general lawyers who may not be familiar with the startup criteria.

BOI Application Process: What Actually Happens

The BOI application is not a form you fill in online and wait. It's a proper investment proposal process. Here's the realistic picture.

Step 1 — Determine eligibility

Before doing anything else, confirm your specific activity is on the BOI eligible list and determine which promotion category applies. The BOI website (boi.go.th) has the current list, but interpreting which category fits your specific business requires expertise. A qualified BOI consultant or experienced Thai business lawyer is essential at this stage.

Step 2 — Prepare the investment proposal

Your application requires a detailed investment proposal including: company background, business plan for promoted activities, investment value breakdown (fixed assets, working capital), employment plan (number of Thai employees, skill levels), description of how the activities contribute to Thailand's development priorities, and financial projections. Budget 2–4 weeks to prepare this properly.

Step 3 — Submit to BOI

Submissions are made to the BOI head office in Bangkok, though the online portal allows much of the initial submission remotely. BOI also has regional offices that can assist with Phuket-based applications. After submission, expect clarification questions and possibly a formal interview with the BOI analyst reviewing your application.

Step 4 — Wait for BOI Board approval

BOI approval is granted by a committee, not an individual officer. Processing time is typically 2–4 months after a complete application is submitted. You receive a BOI promotion certificate specifying your approved activities, investment commitments, incentive period, and conditions.

Step 5 — Incorporate the company and open

After BOI approval, you have 12 months to formally incorporate the company (if not already done), make the required investment, and open operations to activate your incentives. If you have an existing company that you're converting to BOI status, the process is slightly different.

BOI Application ComponentTimelineKey Requirement
Eligibility assessment1–2 weeksActivity must be on BOI eligible list
Investment proposal preparation2–4 weeksBusiness plan, financials, employment plan
BOI application submission1 weekComplete documentation required
BOI review and analyst questions4–8 weeksMay require supplementary information
BOI Board approval4–8 weeksCommittee decision
Post-approval company setup4–8 weeksMust complete within 12 months of approval
Total timeline4–6 monthsAssumes clean application and qualified activity

BOI vs. Standard Thai Limited Company: Which Is Right for You?

The honest answer for most Phuket expats running a service business, villa rental operation, dive school, or restaurant: BOI is not for you, and that's fine. A well-structured Thai Limited Company with proper Thai shareholders is the right vehicle for most Phuket businesses.

BOI makes sense if you tick all of these boxes: your business activity is genuinely on the BOI eligible list, you're making a real investment of at least 1–3 million THB in fixed assets, full foreign ownership is strategically important to you (not just convenient), and you have a real business plan with growth projections — not just a lifestyle business.

If you need to own your business 100% but BOI doesn't fit, the other options are a Foreign Business Licence (complex, slow, rarely granted), an LTR Visa with remote work status (for employees of foreign companies), or restructuring the business so it falls outside FBA restricted categories. The Working & Business Hub covers these options in more detail.

BOI Assessment — Is Your Business Eligible?

A 30-minute consultation with a qualified BOI specialist can tell you whether your business qualifies and what the realistic path looks like. Our network includes Phuket-based advisors who specialise in BOI applications for tech and digital businesses.

Get a Free BOI Assessment →

BOI Smart Visa — A Related Option for Highly Skilled Expats

Separately from company-level BOI promotion, Thailand offers the BOI Smart Visa — a long-stay visa for highly skilled professionals, investors, executives, and startup founders. The Smart Visa offers stays of up to 4 years, no 90-day reporting requirement, and work authorisation without a separate work permit.

For Phuket-based expats, the most relevant Smart Visa categories are the Smart T (talent) for highly skilled professionals in target industries, Smart S (startup) for founders with BOI-approved incubator endorsement, and Smart I (investor) for investors placing at least 20 million THB in BOI-promoted activities. These are genuinely useful but come with strict eligibility criteria — they're not a workaround for people who just want long-term residency.

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Frequently Asked Questions

Can foreigners own 100% of a BOI company in Phuket?
Yes. BOI promotion exempts the promoted business from Foreign Business Act restrictions, allowing 100% foreign ownership of the company for its approved promoted activities. This is one of the few fully legitimate routes to complete foreign ownership of a Thai business.
What types of businesses qualify for BOI in Phuket?
BOI targets technology-driven, knowledge-based businesses including software development, digital services, health-tech, medical services (certain categories), R&D, education tech, data centres, and advanced manufacturing. Retail, restaurants, hospitality, and most lifestyle businesses do not qualify. Always verify against the current BOI eligible activities list at boi.go.th.
How long does BOI promotion take to obtain?
Typically 4–6 months from starting the application to receiving a BOI promotion certificate. Preparation (1–4 weeks) + submission + BOI review + board approval = 4–6 months. After approval, 12 months to complete the required investment and open operations.
Do I still need a work permit with BOI?
Yes, but the process is dramatically easier. BOI companies access work permits through the One Stop Service Center with faster processing and fewer documentation requirements. The standard 4:1 Thai-to-foreign employee ratio requirement is also relaxed for BOI companies.
What is the minimum investment for BOI promotion?
Typically 1 million THB in fixed assets (excluding land and working capital) for most activities, though specific thresholds vary by category. Higher-tier incentives require larger investment commitments. A BOI consultant can confirm the threshold for your specific activity.
Can a Phuket-based business get BOI promotion?
Yes. BOI is available for businesses operating anywhere in Thailand. Phuket falls within promotion zones that may qualify for enhanced incentives compared to core Bangkok zones. Applications go to the BOI central office but your operational base can be Phuket.
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