Thailand Capital Gains Calculator 2026 — ภาษีกำไรส่วนทุน
Calculate capital gains tax in Thailand. Securities (stocks, ETFs, mutual funds) are exempt from CGT (0%). Property gains are taxed as personal income under progressive IIT rates (0–35%) with a holding period deduction.
How Capital Gains Tax works in Thailand
Thailand does not impose a separate capital gains tax on securities. Gains from selling shares listed on the Stock Exchange of Thailand (SET), mutual funds, and ETFs are exempt from personal income tax. For property, gains are treated as assessable income under the Personal Income Tax (IIT) framework. Sellers can claim a holding period deduction of 10% per year (max 100%) before applying progressive IIT rates (0–35%).
Thailand Capital Gains Tax Calculator 2026 — ภาษีกำไรส่วนทุน
Free Thailand capital gains calculator. Securities gains are exempt (0%), property gains use progressive IIT rates with holding period deduction. ภาษีกำไรจากการขายสินทรัพย์.
Gains Tax Comparison by Amount (เปรียบเทียบภาษีตามจำนวนกำไร)
Understanding your results
Toggle between Securities (exempt, 0% tax) and Property (taxed as IIT). For property gains, use the slider to adjust the holding period — each full year of ownership reduces taxable gain by 10%. The stacked bar chart shows the tax burden at different gain amounts.
Important notes
Cryptocurrency gains are subject to 15% withholding tax (deducted at source), but may be taxed as IIT if elected. Real estate gains from inherited property may have different treatment.