BOI 102: Understanding the Corporate Tax Holiday

While the standard Corporate Income Tax (CIT) in Thailand is 20%, Board of Investment (BOI) promoted companies can enjoy a Tax Holiday that eliminates this cost entirely for a significant period.

 

The Tiered Incentive System (Group A)

The BOI categorizes businesses based on their "Value Add" to the Thai economy:

• Group A1+: High-tech research or sunrise industries can get up to 13 years of 0% CIT.
• Group A2 / A3: Typical manufacturing or digital services often receive 5 to 8 years of 0% CIT.
• The Cap: Usually, the tax exemption is capped at the total amount of your initial capital investment (excluding land and working capital).

 

Beyond the Holiday: 50% Reduction

Even after your tax holiday ends, many BOI companies qualify for a further 50% reduction in CIT for an additional 5 years if they are located in specific zones (like the EEC).

 

Compliance Note

To keep your tax holiday, you must submit an annual BOI Report proving that you hit your operational targets (hiring, investment, exports). This is why having a specialized BOI accountant is vital—failing an annual audit can result in the retroactive loss of your tax benefits.

 

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Related Service: Accounting & Tax Compliance — Expert management of BOI annual reporting and tax audits.