Summary
If you make 678,192 kr a year living in the region of Frederiksberg, Denmark, you will be taxed 222,023 kr. That means that your net pay will be 456,169 kr per year, or 38,014 kr per month. Your average tax rate is 32.7% and your marginal tax rate is 46.4%. 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 46.36 kr, hence, your net pay will only increase by 53.64 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 536 kr of net incomes. A 5,000 kr bonus will generate an extra 2,682 kr of net incomes.