Annual Tax Calculator
Estimate your annual Thai personal income tax liability for free. Walk through a guided form covering income, deductions, and allowances, and get a full breakdown of your tax owed — plus a downloadable PDF summary.
- Supports salaried employees, freelancers, sole proprietors, and company owners
- Covers standard allowances, deductions, and progressive tax brackets
- Free, no signup required, runs entirely in your browser
Thailand's progressive tax brackets
Thailand taxes income progressively: the first 150,000 THB of taxable income is exempt, and income above that is taxed in increasing bands from 5% up to 35% for taxable income over 5,000,000 THB. Your effective tax rate is always lower than your top marginal rate, since only the income within each bracket is taxed at that bracket's rate.
Frequently asked questions
Who should use this calculator?
Anyone filing a Thai PND 90/91 return — salaried employees, freelancers, sole proprietors, and company owners — including expats with foreign income remitted to Thailand.
Is my data saved anywhere?
No. Your answers are kept only in your browser's session storage and nothing is transmitted to a server.
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