Income Tax Calculator

Estimate income tax brackets and payable tax amount easily based on Thai progressive tax.

100% Client-Side (Data never leaves your device)

Total Annual Income600,000 ฿

169,000 ฿

ค่าใช้จ่ายส่วนตัว (50% สูงสุด 100k)

100,000 ฿

ค่าลดหย่อนส่วนตัว

60,000 ฿

เงินสมทบประกันสังคม

9,000 ฿

Add New Deduction

Tax Calculation Summary

TH TAX

Net Taxable Income

431,000 ฿

Max Tax Bracket

10%

Effective Rate: 3.4%

Estimated Payable Tax

20,600 ฿

~1,717 ฿ / mo

Effective Tax Rate3.4%

Lvl	Bracket (฿)	Rate	Taxable (฿)	Tax (฿)
1	0 - 150,000	0%	150,000	0
2	150,000 - 300,000	5%	150,000	7,500
3	300,000 - 500,000	10%	131,000	13,100
4	500,000 - 750,000	15%	0	0
5	750,000 - 1,000,000	20%	0	0
6	1,000,000 - 2,000,000	25%	0	0
7	2,000,000 - 5,000,000	30%	0	0
8	5,000,000+	35%	0	0

Calculated using Thai Revenue Department progressive tax brackets (Net Income).

How to Use Income Tax Calculator

Enter your total annual income in the first input.
Enter your combined personal deductions and expenses in the second input (default 160,000 THB).
The system calculates net taxable income and applies progressive tax brackets instantly.
Review your estimated payable tax and maximum tax bracket in the summary panel.

⭐ ให้คะแนนเครื่องมือนี้

4.7

/ 5.0

รีวิว