Summary
If you make 609,960 kr a year living in the region of Frederiksberg, Denmark, you will be taxed 190,396 kr. That means that your net pay will be 419,564 kr per year, or 34,964 kr per month. Your average tax rate is 31.2% and your marginal tax rate is 41.9%. 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 41.89 kr, hence, your net pay will only increase by 58.11 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 581 kr of net incomes. A 5,000 kr bonus will generate an extra 2,906 kr of net incomes.