Eight steps from filing to promotion certificate
- 01Research and prepare the project
Study the BOI information via a BOI office or boi.go.th and confirm your activity is on the list the BOI promotes.
- 02File through e-Investment Promotion
Applicants with eligible activities file online at boi.go.th. Some cases, such as efficiency-improvement projects, business transfers and social and local development projects, are filed on paper.
- 03Project presentation
An officer contacts you to schedule a presentation within 10 working days of submission.
- 04Evaluation
Review time depends on the size of the investment. See the table below.
- 05Notification of the decision
The BOI notifies the applicant within 7 days from the date the resolution is certified.
- 06Accept the promotion
Submit the acceptance form (F GA CT 07) through the system within 1 month of the notification. Extensions are available under BOI announcements.
- 07Apply for the promotion certificate
Submit the certificate application form (F GA CT 08) with supporting documents within 6 months of submitting the acceptance form.
- 08The BOI issues the certificate
Within 10 working days of receiving the complete form and documents.
Review time by investment value
| Investment value | Review time |
|---|---|
| Up to THB 200 million | 40 working days |
| Up to THB 2,000 million | 60 working days |
| Over THB 2,000 million | 90 working days |
Counted from submission of complete documents. Incomplete documents delay the clock, so check everything before filing.
Documents for the application
- Copy of audited financial statements (if any)
- History and details of the business
- Pictures and/or product catalogue
- Document showing the production process
- Document showing the main machinery
- Details of any measure claimed, and evidence of compliance with any special conditions
Documents for the promotion certificate
- Promotion certificate application form (F GA CT 08), completed
- Proof of fund transfer from overseas (for foreign investment)
- Utility and manpower requirements form (F GA CT 13)
- Any other evidence stated in the resolution letter
After the certificate is issued
The certificate is the start of using the incentives, not the end of the process. Promoted companies must follow the conditions in the certificate, for example by getting approval for machinery and raw material lists (raw materials through the RMTS Online system), reporting progress, and notifying changes to details on the certificate such as registered capital, shareholding structure, location or capacity.
See what you can receive in tax incentives, import duty privileges for machinery and raw materials and investment incentives.
How ABS Asia helps at this stage
We check that your activity qualifies, prepare complete documents and project details, file through the system, follow the status, answer officers' questions and handle the post-certificate steps. Approval is at the BOI's discretion, so we cannot guarantee the outcome.
Frequently asked questions
How long does a BOI application take?
Review takes 40, 60 or 90 working days depending on investment value (up to THB 200 million, up to THB 2,000 million, and over THB 2,000 million), counted from complete documents. This excludes document preparation and the acceptance and certificate steps.
What is the deadline to apply for the promotion certificate?
The certificate application form must be submitted within 6 months of the acceptance form, and extensions can be requested under BOI announcements if needed.
Where do I file a BOI application?
Through the e-Investment Promotion system on boi.go.th. Some cases, such as business transfers, are filed on paper.
Source: Investment Promotion Guide 2025, Thailand Board of Investment. This is an overview for general information, not legal or tax advice. Actual rights depend on the activity type, conditions and the latest BOI announcements.