What the BOI is, and what promotion means
The Thailand Board of Investment is the government agency that promotes investment into targeted sectors, and it operates by granting promotion certificates to specific projects. The word project matters. You do not promote a company in the abstract; you apply for promotion of a defined activity, at a defined location, with a defined investment, against a published category. The certificate then attaches privileges to that project, and the company operates the promoted project under conditions the certificate sets out. A promoted company can also carry on non promoted business, but the privileges do not extend to it, and the accounting must keep the two separate.
For a Gulf principal the relevance is direct. Promotion is one of the lawful routes to majority or full foreign ownership in activities that would otherwise be restricted, and it is the route that does not depend on finding a Thai partner or persuading a licensing authority to exercise discretion. Where the intended activity fits a promoted category, promotion is usually the cleanest structure available. Where it does not fit, promotion is not a workaround and no amount of drafting makes it one.
What promotion actually grants
Privileges fall into two families, and both are granted case by case rather than automatically. The tax family can include exemption or reduction of corporate income tax for a period, exemption from import duty on machinery, and duty relief on raw materials for export production. The extent and duration depend on the activity category, the technology and value added involved, the location, and any merit based additions the project qualifies for. Nothing here should be assumed from a summary, including this one: the schedule is published, it is revised, and the entitlement for a particular project is confirmed in its own certificate.
The non tax family is frequently the more valuable one for a family business, and it is where promotion changes daily operations. It can include permission for foreign majority or full foreign ownership of the promoted business, permission to own land for the promoted activity notwithstanding the general prohibition on foreign land ownership, simplified and expedited entry of foreign skilled personnel with work permits handled through a dedicated one stop service, and permission to remit funds abroad in foreign currency in connection with the project. A principal who values being able to hold the land under his own factory, and to bring in his own technical staff without arguing about employee ratios, will often find these worth more than the tax line.
Which activities qualify
The BOI publishes a list of eligible activity categories, revised periodically, with the privileges attaching to each. Broadly and without substituting for the list, promoted categories have long covered agriculture and agricultural products including food processing, mining and ceramics and basic metals, light industry, metal products and machinery, electrical and electronic industries, chemicals and plastics and paper, services and public utilities, and technology and innovation based activities. Within services, categories relevant to Gulf interests have included international business centres and regional headquarters functions, certain logistics and warehousing operations, software and digital services, and some hospitality and healthcare related categories subject to conditions.
The practical method is to work backwards. Describe the business in operational terms, then find the category it maps to, then read the conditions of that category, which typically specify minimum investment, minimum value added, required processes, equipment or capital intensity, and sometimes location. Many applications fail or are downgraded not because the business is unsuitable but because it was described in marketing language rather than in the vocabulary the category uses. This is the part where competent local advice pays for itself several times over.
The application, in sequence
- Map the intended business to a published BOI activity category and read that category's conditions in full
- Prepare the application with project detail: investment amount, process description, machinery, employment, location and financial projections for the project
- Submit the application and attend the interview or presentation the BOI convenes on it
- Receive the approval decision, which may attach conditions or vary the privileges sought
- Accept the promotion within the acceptance window
- Incorporate the Thai company if not already incorporated, and file for the promotion certificate with the required capital and documents in place
- Receive the certificate, then apply the privileges through the relevant channels: customs for machinery duty, the Revenue Department for tax, the one stop centre for visas and work permits
- Operate under the certificate and comply with reporting, which continues for the life of the promotion
Timelines vary with project size and complexity and should be planned generously. The document preparation burden on a Gulf applicant is the same as for any incorporation: home jurisdiction corporate documents, notarised, legalised, translated and attested, plus financial evidence for the project. Begin that in parallel with the application rather than after approval.
What it does to visas and work permits
This is the change most visible in daily life. A promoted company handles foreign personnel through the BOI's dedicated channel rather than the general employment route, and the ordinary constraints, notably the registered capital per foreigner rule and the Thai employees per foreigner ratio, are applied differently for promoted projects. Positions are approved against the project's needs, and processing runs through a one stop service centre that combines the immigration and work permit steps. For a family business bringing in its own general manager, engineer or finance lead from the Gulf, this is often the deciding factor.
It is not unlimited. Foreign positions are approved by position and against the project, not issued on request, and permits remain tied to the promoted company and the approved role. Family members are handled as dependants under the usual rules. And promotion does not remove the need for personal compliance: reporting of address, ninety day reporting where applicable, and re entry permits all continue as normal. Our main visa guides cover the personal side, including the Long Term Resident and Smart Visa categories, which are separate routes that sometimes suit a principal better than an employment permit.
The conditions, which are the other half of the bargain
Promotion is conditional and continuing. A promoted project typically has to be implemented within a timetable, to invest what it said it would invest, to install the machinery and start operations by set dates, to maintain the process and capacity described, and to report periodically to the BOI. Separate accounts for promoted and non promoted activity are normally required, and the audit has to be able to demonstrate the split. Failure to meet conditions can result in privileges being reduced or revoked, potentially with retrospective effect on tax exemptions already taken, which is a materially worse outcome than never having applied.
So the honest test before applying is whether the business will genuinely do what the application says it will do, on the timetable it says. Promotion suits a real operating project with committed capital. It suits a passive or exploratory position poorly. If a principal is not yet certain the business will proceed at scale, the sequence to prefer is usually to establish, operate, and apply for promotion when the project is real, accepting that some privileges are only available to new projects and that this should be checked before choosing the order.
One further practical point for a Gulf family. Promotion is administered against a project, and the family office in the Gulf therefore acquires a reporting obligation in Thailand that does not stop when the factory opens. Somebody has to own that obligation permanently: the investment implementation reports, the machinery import records, the separate accounting, the annual submissions and the responses to any query from the agency. Where that responsibility is left with a local manager and never reviewed from the Gulf, families discover a compliance gap years later, usually at the point of a sale or a refinancing when a buyer asks to see the certificate and the file behind it. Assign the role, in writing, at the same time as the application.
BOI activity categories, privilege schedules, investment thresholds and conditions are revised periodically and entitlements are determined case by case in the promotion certificate. Verify current categories, criteria and privileges with the Thailand Board of Investment at boi.go.th or its overseas offices, confirm tax treatment with the Revenue Department, and confirm work permit and visa handling with the BOI one stop service centre. Take Thai legal, tax and accounting advice from advisers you appoint yourself before submitting an application.
Continue reading.
This briefing is general information, not legal, tax or investment advice. Thai rules change frequently and individual cases differ. Verify current requirements with the relevant authorities, including the Immigration Bureau, the Board of Investment, the Land Department, the Department of Business Development and the Revenue Department, and take advice on your own facts before acting.
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