Summary
If you make 520,008 kr a year living in the region of Frederikssund, Denmark, you will be taxed 174,778 kr. That means that your net pay will be 345,230 kr per year, or 28,769 kr per month. Your average tax rate is 33.6% and your marginal tax rate is 35.7%. This marginal tax rate means that your immediate additional income will be taxed at this rate. For instance, an increase of 100 kr in your salary will be taxed 35.74 kr, hence, your net pay will only increase by 64.26 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 643 kr of net incomes. A 5,000 kr bonus will generate an extra 3,213 kr of net incomes.