Salary rate
Annual
Month
Semimonthly
Weekly
Day
Hour
Withholding
Salary
51,500 บาท
Income Tax
- 16,148 บาท
Social Security Fund
- 34.62 บาท
Total tax
- 16,182 บาท
Net pay
* 35,318 บาท
Marginal tax rate
35.0%
Average tax rate
31.4%
68.6%
Net pay
31.4%
Total tax
Total tax
Net pay
The Taxberg
35,318 บาท
Net pay
34.62 บาท
Tax the employer pays
16,182 บาท
Tax you pay
Total tax paid
16,217 บาท
Did you know your employer also pays tax on your salary? It costs the employer 34.62 บาท to pay you 51,500 บาท. In other words, every time you spend 10 บาท of your hard-earned money, 3.15 บาท goes to the government.
Real tax rate
31.5%
So, with you and the employer both paying tax, what used to be a 31.4% tax rate now rises to 31.5%, meaning your real tax rate is actually 0.1% higher than what it seemed at first.
Summary
If you make 13,390,000 บาท a year living in Thailand, you will be taxed 4,207,350 บาท. That means that your net pay will be 9,182,650 บาท per year, or 765,221 บาท per month. Your average tax rate is 31.4% and your marginal tax rate is 35.0%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 บาท in your salary will be taxed 35 บาท, hence, your net pay will only increase by 65 บาท.
Bonus Example
A 1,000 บาท bonus will generate an extra 650 บาท of net incomes. A 5,000 บาท bonus will generate an extra 3,250 บาท of net incomes.
Compare average tax
North America
Country 
Net pay
Average tax
Rank
USA
THB 8239008
38.5%
1
Canada
THB 7035039
47.5%
2
NOTE* Withholding is calculated based on the tables of Thailand, income tax. For simplification purposes some variables (such as marital status and others) have been assumed. This document does not represent legal authority and shall be used for approximation purposes only.