Thai Income Tax Rates and Brackets 2025/2026: Complete Guide

Progressive Tax System

Thailand uses a progressive tax system where higher income is taxed at higher rates. Only the income within each bracket is taxed at that rate.

2024 Tax Brackets

Taxable Income (THB)	Tax Rate
0 - 150,000	Exempt
150,001 - 300,000	5%
300,001 - 500,000	10%
500,001 - 750,000	15%
750,001 - 1,000,000	20%
1,000,001 - 2,000,000	25%
2,000,001 - 5,000,000	30%
Over 5,000,000	35%

How It Works

The first 150,000 THB of taxable income is always exempt. Then each subsequent bracket applies only to the income within that range.

Example Calculation

For a taxable income of 600,000 THB:

• First 150,000: 0 THB (exempt)
• 150,001 - 300,000: 7,500 THB (150,000 × 5%)
• 300,001 - 500,000: 20,000 THB (200,000 × 10%)
• 500,001 - 600,000: 15,000 THB (100,000 × 15%)
• Total Tax: 42,500 THB
• Effective Rate: 7.08%

Key Takeaways

1. Your marginal rate applies only to income in that bracket
2. The effective rate is always lower than your top bracket
3. Deductions reduce your taxable income before applying brackets
4. Use our calculator to see your exact breakdown