Summary
If you make 84,570,720 ₫ a year living in Vietnam, you will be taxed 13,449,005 ₫. That means that your net pay will be 71,121,715 ₫ per year, or 5,926,810 ₫ per month. Your average tax rate is 15.9% and your marginal tax rate is 19.5%. 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 19.45 ₫, hence, your net pay will only increase by 80.55 ₫.
Bonus Example
A 1,000 ₫ bonus will generate an extra 806 ₫ of net incomes. A 5,000 ₫ bonus will generate an extra 4,028 ₫ of net incomes.