Thailand BOI Updates Progress Reporting Rules: What Promoted Companies Need to Know

The Thailand Board of Investment (BOI) has revised its project progress reporting requirements for promoted companies. The changes, which came into effect in May 2026, replace a semi-annual filing system that had been in place since 2018 with a new quarterly reporting framework. Companies holding BOI promotion certificates should review their compliance processes to ensure they meet the updated deadlines.

The BOI Reporting Obligation

When a company receives BOI investment promotion, it is granted a range of incentives including corporate income tax exemptions, import duty reductions, and non-tax privileges such as the right to bring in foreign experts and own land. In return, the BOI requires promoted companies to report on the progress of their project during the implementation phase, from the date the promotion certificate is issued until the company receives its Operation Commencement License.

The Operation Commencement License is issued by the BOI once a company has fulfilled its investment commitments, including machinery installation, capital expenditure, and employment targets. It marks the end of the implementation phase and confirms that the company is cleared to operate under the full benefits of its BOI promotion.

This reporting obligation is managed through the BOI's e-Monitoring system and is a standard condition of holding BOI promotion. Failure to comply can result in the suspension or revocation of incentives.

What Has Changed

The previous rules, in place since January 2018, required promoted companies to submit progress reports twice per year: by the end of February and by the end of July.

Under the current notification (No. Por. 8/2569, dated 20 May 2026), companies are now required to report four times per year on a quarterly basis, with a submission deadline of 30 days after the end of each quarter.

The New Requirements

BOI-promoted companies must submit project progress reports covering the following periods:

• Q1 (January to March): report due by 30 April

• Q2 (April to June): report due by 31 July

• Q3 (July to September): report due by 31 October

• Q4 (October to December): report due by 31 January of the following year

Reports must be submitted through the BOI's e-Monitoring system. If a promotion certificate is issued during an ongoing quarter, the first reporting obligation begins one quarter later, giving companies a defined starting point rather than requiring an immediate submission.

Who Is Affected

The new rules apply to all BOI-promoted companies currently in the implementation phase, including both newly promoted projects and existing projects that have not yet received their Operation Commencement License. Companies that have already completed the implementation phase and hold a valid Operation Commencement License are not subject to this obligation.

Penalties for Non-Compliance

The BOI has made clear that this reporting obligation is a compliance requirement, not an administrative formality. Missing two consecutive reporting periods may result in the revocation of the rights and privileges granted under the promotion certificate. Given that BOI incentives, particularly corporate income tax exemptions, are often a central part of an investment case, maintaining compliance is in the direct interest of any promoted company.

What Companies Should Do Now

For any company holding a BOI promotion certificate that has not yet commenced operations, the immediate priority is to confirm that the new quarterly schedule is reflected in internal compliance processes. Q2 2026 ended on 30 June, meaning the first report under the new rules was due by 31 July 2026.

Going forward, the 30-day filing window is relatively short. Companies with lean administrative teams or those relying on external advisors should ensure that processes are in place well ahead of each deadline.

BOI promotion represents a significant commitment from the Thai government to investors. Staying in good standing through accurate and timely reporting is the most straightforward way to protect the value of that commitment.

How KLAY Can Help

KLAY supports foreign companies through the full lifecycle of BOI-related work in Thailand.

At the application stage, we guide companies through the BOI application process, from selecting the right promotion category to preparing the submission and coordinating with the BOI throughout the review.

For companies bringing in foreign staff, we handle work permit and visa applications for employees working under BOI-promoted entities, including Non-Immigrant B visas and BOI-specific privileges for foreign experts and executives.

Once operations are underway, we coordinate ongoing monthly bookkeeping, tax filings, and payroll processing through our partner network, ensuring that the operational compliance side of your Thai entity is managed consistently.

If you have questions about your BOI promotion or ongoing compliance obligations, feel free to get in touch.