Thailand Corporate Tax Calculator 2026 — ภาษีนิติบุคคล
Calculate Thailand Corporate Income Tax (CIT / ภาษีเงินได้นิติบุคคล) at the standard 20% rate, SME sliding rates (0–20%), and BOI promoted incentives. Stacked bar chart shows tax burden across profit levels.
How Thai Corporate Tax works in 2026
The standard Corporate Income Tax (CIT) rate in Thailand is 20% of net profits. SMEs with paid-up capital not exceeding THB 5 million and revenue under THB 30 million benefit from a sliding scale: 0% on the first THB 300,000, 15% on the next THB 2.7 million, and 20% above THB 3 million. BOI (Board of Investment) promoted companies may receive tax holidays or reductions.
Thailand Corporate Tax Calculator 2026 — ภาษีนิติบุคคล
Free Thailand Corporate Income Tax (CIT) calculator. Standard 20%, SME sliding rate 0-15%, BOI promoted incentives. ภาษีเงินได้นิติบุคคล 2569.
Corporate Tax at Different Profit Levels (ภาษีนิติบุคคลในระดับกำไรต่างๆ)
Understanding your results
Toggle between Standard (20%) and SME sliding to see how the progressive rates affect your tax liability. Enable BOI Promoted to see additional tax benefits. The stacked bar chart visualizes corporate tax vs. net profit after tax at various profit levels.
Filing and compliance
CIT returns must be filed twice a year: a semi-annual return (50% of estimated annual tax) within two months of the first half of the accounting period, and an annual return within 150 days of the end of the accounting period.