Approval is the half that gets the attention
Most of the advice available on investment promotion in Thailand ends the moment the certificate is issued. That is roughly the midpoint of the work.
A promotion certificate is not a status the company holds. It is an agreement about a specific project — an activity, at a scale, in a place, funded in a described way, on a timetable — and the privileges are attached to that project rather than to the company generally. Everything that follows is about keeping what you are actually doing inside the description that was approved, and being able to demonstrate it.
The reason this matters more than it sounds: the consequences arrive late. A drift that begins in year one is typically noticed in year four, and it lands on the tax positions of the intervening years, all of which have been reported and banked.
This guide assumes you already have promotion or are about to. For eligibility, categories and the application itself, see the complete guide to foreign investment in Thailand.
1. What the certificate actually contains
Read it as three separate things:
- The project description — the activity, scale, location, capital and equipment that were approved. This is the reference point for everything else.
- The conditions — obligations with dates. Capital to be brought in and paid up, the project to be operational, scale to be achieved, equipment installed, sometimes ratios or capabilities to be maintained.
- The privileges — what you may claim, on what, for how long.
The certificate is a compliance document, not a certificate of achievement, and it should live somewhere a named person reviews rather than in a corporate records file.
2. The conditions have dates
The dated obligations are where promoted companies most often slip, because the dates fall in the period when the business is busiest and least administratively organised — the build-out.
Typical shapes:
- Bring in and pay up capital by a point in time, in the manner described
- Have the project operating by a point in time
- Install the approved equipment, and be able to show it is the approved equipment
- Come back and demonstrate that the above happened
Two rules make this manageable. First, every date in the certificate goes into the same calendar as the tax filings, owned by the same person. Second, where a date cannot be met, that is raised prospectively, because a variation asked for in advance is administration and the same fact discovered afterwards is a finding.
3. Privileges only exist if you operate them
The most expensive misunderstanding in this area is that promotion is a rate.
- Income from the promoted activity is what the exemption covers. Income from other activities of the same company is not, and the two have to be separated in the accounts as you go. Reconstructing that split at year end, or during an examination, is not the same exercise and does not read the same way.
- Duty privileges on machinery and materials run through defined systems, against approved lists, with the imports evidenced. Goods brought in outside those channels are ordinary imports, whatever the company's status.
- Rights that come with promotion, such as the ability to hold land for the project or to bring in foreign specialists, are tied to the promoted project and follow its fate.
In every case the entitlement is only as good as the evidence that it was operated correctly, and that evidence is created contemporaneously or not at all.
4. The reporting continues for the life of the project
Promoted companies report on the project's operation on a recurring basis. The purpose is comparison: what was approved against what is happening.
Treat each report as the annual statement that the project is still the promoted project. That framing changes how it gets prepared — from an administrative form filled in quickly, to a short internal review of whether the activity, scale and structure still match the description, with anything that has moved either explained or formally varied.
5. Change is normal; unreported change is the problem
Businesses move. Promoted projects are allowed to move too, through a defined route: notification or approval, depending on what is changing.
Changes that commonly need attention:
| What changed | Why it matters |
|---|---|
| Activity or product scope | The promoted description no longer matches what you do |
| Scale or capacity | Conditions were set against the approved scale |
| Location or additional site | Privileges and rights attach to the approved place |
| Machinery and equipment | Duty privileges were granted against approved items |
| Timing | Dated conditions may need to be varied before they pass |
| Shareholding | Conditions may be framed by reference to it |
The cost asymmetry is the whole point: prospective variation is administration; retrospective discovery is exposure, because the privileges taken in the interim rested on a description that had stopped being accurate.
6. What withdrawal actually means
Where conditions are not met, promotion can be withdrawn. The forward-looking loss — no further privileges — is usually the smaller half. The larger half is that benefits already taken can be revisited, which converts a compliance question into a liability landing on closed years.
This is why we treat promotion compliance as a finance-function obligation of the same rank as the tax filings, rather than as a project that ended when the certificate arrived.
7. The handover that usually does not happen
The recurring institutional failure is simple and avoidable. The application is run by an external adviser. The certificate is issued and filed. The adviser's engagement closes. Nobody inside the company inherits:
- the certificate and its conditions
- the dates attached to them
- the reporting cycle
- the rule that promoted and non-promoted income must be separated in the accounts
- the knowledge that changes need to be raised before they happen
Ask, at the point the certificate arrives: who owns this list now, and where is it written down?
Summary
| Obligation | Failure mode |
|---|---|
| Dated conditions | Missed during build-out; discovered when demonstrated |
| Promoted vs other income | Never separated; reconstructed under examination |
| Duty privileges | Goods brought in outside the approved channels |
| Recurring reporting | Filed as a formality; contradicts the operation |
| Project changes | Made without variation; privileges rest on a stale description |
| Ownership inside the company | Adviser left; nobody inherited the calendar |
Promotion is not a status you are granted. It is a description you keep matching.
We advise promoted companies on conditions, variations, reporting and the compliance position behind the privileges. Initial consultation is free — call +66 92 254 2045 or send us the details. See also our work with factories in the industrial estates and accounting and tax compliance.
This guide is published by Suwanvara Law Firm — a Khon Kaen law firm established in 1986. General information only, not legal advice on a specific matter.