BOI Promotion in Thailand
Understand BOI promotion in Thailand: match the activity, assess conditional incentives and ownership, prepare the application, separate other permissions and plan post-approval compliance.

BOI promotion in Thailand: eligibility and practical steps
BOI promotion is an approval for a qualifying investment project. Start with the current activity conditions and your actual operation, then assess benefits, ownership and separate permissions. The promotion certificate sets the terms; an application or consultant’s promise does not authorise the project or guarantee incentives.
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Use a section below to plan your next step.
Start with the activity, not a promised incentive
Thailand’s Board of Investment promotes qualifying investment projects. Eligibility is tied to the actual activity and its conditions, rather than simply to having a Thai company, a foreign founder or a business with “technology” in its name.
Use the current activity list and relevant announcements to identify the closest category. Explain what the business will actually produce or deliver, which work happens in Thailand, the process, customers, staff and investment. A broad label such as consulting, e-commerce or software is not enough to establish eligibility.
Ask BOI to clarify the fit before building the financial plan around an incentive. If no category fits, assess the ordinary registration and licensing route rather than relabelling the business to make the application sound eligible.
Read benefits as project-specific conditions
Possible benefits include specified corporate-income-tax incentives, import-duty treatment and certain non-tax facilities, depending on the activity and approval. The duration, cap, qualifying income and conditions can differ. Some categories receive no corporate-tax holiday.
Do not describe the entire company as “tax free”. Separate promoted and non-promoted activities and ask the accountant how income, costs and assets will be tracked. An incentive is valuable only if the project qualifies, the relevant permission is used correctly and the conditions remain satisfied.
Model a base case without the unapproved benefit and a separate case using the proposed terms. Include the cost of compliance, reporting and professional support. A consultant’s projection is not a BOI decision or a tax ruling.
Foreign ownership and the Foreign Business Certificate
BOI promotion can support foreign ownership in eligible activities, but it does not remove every ownership restriction. Other laws and activity-specific conditions still matter. Do not use “100% foreign-owned” as a blanket answer for every business the company might later undertake.
Where a promoted foreign business falls within the relevant Foreign Business Act lists, Section 12 provides a Foreign Business Certificate route through notification to DBD. That certificate and the BOI promotion certificate are different records. Ask the adviser to identify the exact activity and required DBD step.
Keep non-promoted revenue-generating activities in the legal review. Promotion for one project does not automatically authorise unrelated retail, service or regulated work. Never use nominee shareholders or fictitious business descriptions to conceal the real ownership or activity.
Discuss timing before committing money
Application timing can affect what investment, equipment or activity is eligible. Before buying machinery, signing a major implementation contract or starting the project, ask BOI how the applicable measure treats those steps. Do not assume past expenditure can be included retrospectively.
Use the official application channel for the measure concerned. The live e-Investment portal identifies exceptions to its ordinary online route and explains the completeness check. Its current notice allows 30 calendar days to correct returned incomplete or inaccurate information, after which the application can be rejected.
Keep copies of the submitted version, requests and replies. Assign someone to monitor the actual account and deadlines. A consultant saying that an application has been prepared is different from BOI accepting a complete submission for consideration.
A practical route through the application
- 1Check the activity and assumptions
Discuss the real project with BOI or a suitably qualified adviser. Confirm the relevant announcement, investment basis, ownership and other permissions.
- 2Build a defensible application
Prepare the operating process, investment and financing, staffing, market and implementation plan. Keep figures consistent with the business plan and supporting evidence.
- 3Submit and respond
Use the official channel, complete the required interview or clarification steps and respond to document requests within the stated time.
- 4Read and accept the decision correctly
Review the actual terms and deadlines before accepting. Approval, acceptance and issuance of the promotion certificate are separate stages.
- 5Implement and use privileges properly
Complete the certificate and separate permission steps, then track conditions and obtain any further approvals needed to use particular benefits.
What promotion does not settle by itself
Company registration, foreign-business permissions, premises, construction or factory approvals, environmental requirements, product licences, tax registrations and employment compliance can still need separate work. Map them to the actual activity and site before launch.
Facilities for bringing in foreign experts or skilled workers do not mean that every founder, employee or contractor can begin work immediately. Confirm the immigration status, approved role, employer and work-authorisation steps with the responsible bodies before the person starts.
For a site or lease, ask who must obtain each approval and whether the location can legally support the intended operation. Make major commitments conditional on the permissions and project assumptions you actually need.
Build compliance into the project from the start
After an approval, read the resolution and promotion certificate with the people who will run the project. Record the approved activity, location, investment, capacity, implementation milestones, privileges and special conditions relevant to it. Do not leave the certificate solely with the application consultant.
Assign owners for project records, privilege applications, reporting, accounting separation and changes. Before moving, expanding, changing a process or restructuring, ask whether BOI and other authorities need an amendment or notification.
Keep evidence of how the project met its conditions and how benefits were used. The practical question is not just “was promotion granted?” but “can this company support the particular privilege it is claiming now?”
Prepare the project file
Common questions
Is every foreign-owned company eligible?
No. Eligibility depends on the actual activity, investment and conditions. Foreign ownership alone is not a promotion category.
Does BOI promotion guarantee a tax holiday?
No. Benefits differ by category and approval. Check the actual certificate, qualifying income, caps, duration and conditions before using any tax incentive.
Can I begin work as soon as the project is approved?
Do not assume so. The individual’s visa and work-authorisation steps, and any approved role requirements, still need to be completed.
Can I buy an existing promoted company and use its benefits for my new business?
Treat the purchase, project change and continued eligibility as separate due-diligence questions. Do not assume a share purchase transfers or expands every privilege without conditions or approval.
Useful next steps
Foreign direct investment
Review ownership, structure and permissions.
Learn moreBusiness plan
Prepare the operating and financial case.
Learn moreBusiness licence checklist
Map permissions beyond promotion.
Learn moreCompany compliance
Plan the ongoing obligations.
Learn moreSources used for this guide
Sources are reviewed regularly so important changes can be reflected in the guide.
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