Summary
If you make 605,800,000 ₫ a year living in Vietnam, you will be taxed 160,156,750 ₫. That means that your net pay will be 445,643,250 ₫ per year, or 37,136,938 ₫ per month. Your average tax rate is 26.4% and your marginal tax rate is 32.9%. 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 32.88 ₫, hence, your net pay will only increase by 67.12 ₫.
Bonus Example
A 1,000 ₫ bonus will generate an extra 671 ₫ of net incomes. A 5,000 ₫ bonus will generate an extra 3,356 ₫ of net incomes.