How to Write a BOI Investment Proposal — Complete Guide 2026

Writing a Thailand BOI (Board of Investment) proposal is one of the most critical steps for any company seeking investment promotion privileges in Thailand. A well-written proposal can mean the difference between receiving 8-year corporate income tax exemptions — or nothing at all.

In this guide, we'll walk through exactly what a BOI proposal is, what it must include, and how AI tools like Momei can now generate complete, formatted proposals in minutes instead of weeks.

What Is a BOI Investment Promotion Application?

The Thailand Board of Investment (BOI) offers tax and non-tax incentives to companies that invest in targeted industries. These incentives include:

• Corporate Income Tax (CIT) exemption — up to 8 years depending on the industry category
• Import duty exemption on machinery and raw materials
• Work permit and visa facilitation for foreign experts
• Land ownership rights for promoted projects
• Double deduction for R&D and training expenses

To qualify, companies must submit a detailed investment promotion application that demonstrates how their project benefits the Thai economy.

Key Sections of a BOI Proposal

A complete BOI proposal must cover these essential sections:

1. Executive Summary

Summarize your entire project in 1-2 pages. Include: company name, industry category (e.g., 7.12 — Digital Technology), total investment, employment numbers, and requested incentives. This is the most-read section — make it compelling.

2. Company Profile & Project Background

Describe your company's history, existing operations, and why you're investing in Thailand. Include shareholder structure, registered capital, and management team background.

3. Project Details

• Business description: What you will produce or provide
• Production capacity: Annual output projections
• Technology & processes: Manufacturing or development methods
• Investment breakdown: Land, building, machinery, working capital
• Implementation timeline: Construction, installation, commercial operation dates

4. Economic Benefits to Thailand

This section is critical — BOI evaluates projects based on their contribution to Thailand. Address:

• Employment: Number of Thai nationals hired (skilled and unskilled)
• Technology transfer: How your project brings new knowledge to Thailand
• Local content: Percentage of Thai-made inputs and suppliers
• Export potential: Expected export revenue and markets
• Tax revenue: Estimated corporate tax after promotion period

5. Financial Projections

Include 5-year financial forecasts: revenue, COGS, operating expenses, EBITDA, and net profit. BOI uses these to evaluate project viability. Be conservative — inflated projections hurt credibility.

6. Incentives Requested

Specify which BOI incentives you're applying for, referencing the relevant sections of the Investment Promotion Act (e.g., Section 29 for CIT exemption, Section 30 for machinery import duty).

Common BOI Proposal Mistakes

1. Vague economic benefits — "We'll create jobs" isn't enough. Specify numbers, types, and training plans.
2. Unrealistic financial projections — BOI has seen thousands of proposals. Overly optimistic numbers reduce credibility.
3. Wrong industry category — Applying under the wrong BOI category can result in automatic rejection. Check the current BOI announcement carefully.
4. Missing technology transfer plan — For tech companies, this is essential. Show exactly how Thai staff will be trained and what IP stays in Thailand.
5. Poor formatting — BOI officials review hundreds of applications. A well-structured, professionally formatted document stands out.

How AI Can Generate Your BOI Proposal

Traditionally, writing a BOI proposal takes 2-4 weeks and costs ฿30,000-50,000 in consulting fees. Momei V3 changes this entirely:

• Describe your project in plain language — "A coffee shop chain with IoT brewing and AI inventory management, 15 locations, ฿45M investment"
• AI generates a complete, formatted BOI proposal with all required sections
• Review and refine — the AI output is a complete first draft that you can customize
• Export to PDF or DOCX for submission

BOI Proposal Timeline

A typical BOI application timeline looks like this:

• Week 1-2: Draft proposal (or 5 minutes with Momei)
• Week 3: Submit to BOI with supporting documents
• Week 4-6: BOI review and interview
• Week 7-8: Approval notification and conditions

The proposal is the foundation. Get it right, and the rest of the process is significantly smoother.

Ready to Write Your BOI Proposal?

Whether you're a startup seeking your first BOI promotion or an established company expanding operations, a strong proposal is your ticket to significant tax savings and operational benefits. Start generating your BOI proposal with Momei today — free for your first 3 documents.