Thai personal income tax calculator 2026

Enter your income and allowances to see the tax you owe — or the refund you can claim.

Income for the year

THB
THB
leave blank if none
THB
See your 50 Tawi certificate

Personal & family allowances

people
30,000 each
people
extra 30,000 each
people
30,000 each, up to 4
people
60,000 each
THB
max 10,500 THB
Insurance & funds
THB
max 100,000
THB
max 25,000 (with life insurance max 100,000)
THB
max 15,000
THB
15% of income, max 200,000
THB
15% of income, max 500,000
THB
30% of income, max 200,000
THB
30% of income, max 500,000
THB
30% of income, max 300,000

Pension insurance + provident fund + SSF + RMF are capped at 500,000 THB together (applied for you)

Home, donations and other
THB
max 100,000
THB
max 10% of net income
THB
e.g. education, public hospitals
THB
e.g. this year's government schemes

Fill in the form — the result appears here instantly

ℹ️ Results are estimates for planning. Real figures can differ with your situation and your bank or employer.

How it works: Thai income tax

Thai personal income tax is charged on net income: total income − expense deduction − allowances − donations. Net income is then taxed on a progressive scale from 0% (first 150,000 baht) up to 35% (above 5 million baht).

Salary and wages (section 40(1)) and freelance fees (40(2)) get a 50% expense deduction capped at 100,000 baht in total. This calculator applies every cap for you, for example life + health insurance together up to 100,000 baht, and the retirement group (SSF, RMF, provident fund, pension insurance) up to 500,000 baht in total.

FAQ

Do foreigners pay Thai income tax?

Anyone who stays in Thailand 180 days or more in a tax year is a tax resident and is taxed on Thai-source income, and on foreign income brought into Thailand. Work income earned in Thailand is taxable whatever your residency.

At what salary do I start paying tax?

With only salary, the personal allowance and social security, tax starts at roughly 27,000 baht a month, because the first 150,000 baht of net income is exempt.

What is the top marginal rate?

The rate of the highest bracket your net income reaches. It tells you how much tax an extra 1,000 baht of allowances saves.

Can I file with these numbers?

Use them to estimate and plan. When you file, check the figures against your documents and the Revenue Department's e-filing system.

Related calculators

Net salary Enter your monthly salary to see what reaches your bank account after social security, provident fund and withholding tax. Withholding tax Work out withholding tax and VAT on an invoice, what you actually receive, or how much to invoice to receive a set amount.

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