Summary
If you make 135,674,240 ₫ a year living in Vietnam, you will be taxed 23,626,748 ₫. That means that your net pay will be 112,047,492 ₫ per year, or 9,337,291 ₫ per month. Your average tax rate is 17.4% and your marginal tax rate is 22.1%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 ₫ in your salary will be taxed 22.08 ₫, hence, your net pay will only increase by 77.92 ₫.
Bonus Example
A 1,000 ₫ bonus will generate an extra 779 ₫ of net incomes. A 5,000 ₫ bonus will generate an extra 3,896 ₫ of net incomes.