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Personal income tax calculator
Personal income tax calculator
and deduction planner
Enter your income and deductions. The calculator works out your tax for the year at the progressive rates and shows which deductions could still lower it, and by how much.
How the calculation works
- Assessable income minus expenses by income type, e.g. salary and fees under 40(1)(2): 50%, combined max 100,000 baht
- Minus deductions within each limit; the retirement group (RMF, PVD, GPF, NSF, pension insurance) is capped at 500,000 baht combined
- Minus donations, up to 10% of income after deductions
- Apply the progressive rates of 0–35%. If non-salary income is 120,000 baht or more, compare with method 2 (0.5%) and pay whichever is higher
Limitations
Results are estimates for planning. Not included: dividends under 40(4) (tax credit or final withholding), income from selling property, severance and one-off retirement payments, and joint filing with an earning spouse. Check each condition with the Revenue Department before filing.
What you enter is calculated in your browser only. We do not receive, store or send it anywhere.
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