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 if I'm an expat working here?
Thailand uses a progressive income tax system with 8 brackets ranging from 0% to 35%. If you're a resident employee, you get a personal allowance of THB 60,000, an employment expense deduction of 50% of income (capped at THB 100,000), and a mandatory 5% social security contribution (capped at THB 9,000 per year) that reduces your taxable income before tax is calculated.
What is the highest income tax rate in Thailand and when do I pay it?
The highest income tax rate in Thailand is 35%, which applies to annual taxable income above THB 5,000,000. Before that, you progress through seven other brackets, with rates increasing from 5% at THB 150,000 to 30% at THB 2,000,000.
Do I have to pay social security contributions in Thailand as an employee?
Yes, employees in Thailand must contribute 5% of their gross income to the Social Security Fund, with a maximum annual contribution of THB 9,000. This contribution is mandatory and reduces your taxable income, so it lowers the amount of income tax you owe.
Are there any deductions or allowances that reduce my Thai income tax?
Yes, Thailand offers several deductions: a personal allowance of THB 60,000, an employment expense deduction of 50% of your income (capped at THB 100,000), and the 5% social security contribution mentioned above. The calculator also notes that charitable donations, life insurance, health insurance, mortgage interest, and retirement contributions may be deductible, though these are not included in the baseline model.
What's the income level where I start paying income tax in Thailand?
You don't pay any income tax on the first THB 150,000 of taxable income in Thailand; this is the exempt bracket. Once your taxable income exceeds THB 150,000 after deductions and allowances, you start paying tax at 5% on the amount between THB 150,000 and THB 300,000.
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