Summary
If you make 609,991 kr a year living in the region of Frederiksberg, Denmark, you will be taxed 190,407 kr. That means that your net pay will be 419,584 kr per year, or 34,965 kr per month. Your average tax rate is 31.2% and your marginal tax rate is 45.4%. 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 45.36 kr, hence, your net pay will only increase by 54.64 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 546 kr of net incomes. A 5,000 kr bonus will generate an extra 2,732 kr of net incomes.