Thailand Personal Income Tax 2025: Progressive Rates Explained

Thai personal income tax (PIT) is progressive — higher earners pay higher rates, applied only to the portion of income in each bracket.

2025 Tax Brackets

Annual taxable income	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 - 4,000,000	30%
4,000,001+	35%

Calculation Example

Taxable income 600,000 THB:

• First 150,000: exempt
• Next 150,000 (5%): 7,500
• Next 200,000 (10%): 20,000
• Last 100,000 (15%): 15,000
• Total tax: 42,500 THB

Key Deductions

Personal allowance 60,000 THB, social security up to 9,000 THB, RMF/SSF funds, mortgage interest up to 100,000 THB.

Calculate Automatically

Use our Income Tax Calculator — enter annual income, get your tax instantly. Free.