Thailand Tax Calculator (2026)
Income tax rates and take-home pay for Thailand
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Thailand Income Tax Brackets (2025)
| Bracket | Income Range | Rate |
|---|---|---|
| Exempt | THB 0 - THB 150,000 | 0.0% |
| 5% bracket | THB 150,000 - THB 300,000 | 5.0% |
| 10% bracket | THB 300,000 - THB 500,000 | 10.0% |
| 15% bracket | THB 500,000 - THB 750,000 | 15.0% |
| 20% bracket | THB 750,000 - THB 1,000,000 | 20.0% |
| 25% bracket | THB 1,000,000 - THB 2,000,000 | 25.0% |
| 30% bracket | THB 2,000,000 - THB 5,000,000 | 30.0% |
| 35% bracket | THB 5,000,000+ | 35.0% |
Personal allowance: THB 60,000
Social Security Fund contribution
| Bracket | Income Range | Rate |
|---|---|---|
| 5% contribution | THB 0+ | 5.0% |
Capped at THB 9,000 per year
Key Facts
Tax Year
2025
Currency
THB
Top Rate
35.0%
Brackets
8 brackets
Allowance
THB 60,000
Social Contributions
1 item
Assumptions
- · Model assumes resident employee with employment income only.
- · Standard employment deduction of 50% (capped at THB 100,000) is applied to reduce taxable income.
- · Personal allowance of THB 60,000 for single taxpayer is deducted before computing PIT.
- · Social security contribution of 5% (capped at THB 750/month = THB 9,000/year) is mandatory employee deduction and reduces taxable income.
- · Charitable donations, life insurance, health insurance, mortgage interest, and retirement fund contributions are discretionary personal deductions not included in this baseline model.
- · Tax credits for withholding at source are not modeled as they depend on actual withholding and are settled at filing.
- · Inheritance tax, VAT, and other indirect taxes are excluded as they do not apply to employment income.
- · Non-resident taxation and foreign income remittance rules are not modeled; model assumes resident employee.
Frequently asked questions
How much income tax do I pay in Thailand as an employee?
Thailand uses a progressive tax system with 8 income tax brackets ranging from 0% to 35%. The first THB 150,000 of your taxable income is exempt from tax, then rates increase from 5% on income between THB 150,000-300,000 up to 35% on income over THB 5,000,000. Your actual tax depends on your gross income minus deductions like the employment expense deduction and social security contributions.
What deductions reduce my taxable income in Thailand?
You get several key deductions: a personal allowance of THB 60,000, an employment expense deduction of 50% of your income (capped at THB 100,000), and a mandatory social security contribution of 5% (capped at THB 9,000 per year). Additional deductions like charitable donations, life insurance, health insurance, and mortgage interest may also apply if you qualify, but the calculator uses the baseline deductions above.
Do I have to pay social security contributions as an employee in Thailand?
Yes, employees must contribute 5% of their gross income to the Social Security Fund, with a maximum contribution of THB 9,000 per year. This contribution is mandatory and reduces your taxable income, so it lowers both your social security obligation and your income tax liability.
Is there a tax-free threshold in Thailand?
Yes, your first THB 150,000 of taxable income (after deductions) is completely tax-free. Combined with the personal allowance of THB 60,000 and the employment expense deduction, many lower-income earners pay little to no income tax even before considering optional deductions like insurance or charitable contributions.
How does the employment expense deduction work in Thailand?
The employment expense deduction allows you to reduce your taxable income by 50% of your employment income, but it's capped at a maximum of THB 100,000. This means if you earn THB 200,000 or more, you can deduct the full THB 100,000, but if you earn THB 100,000, you can only deduct THB 50,000.
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