Summary
If you make 665,604 kr a year living in the region of Fredensborg, Denmark, you will be taxed 230,730 kr. That means that your net pay will be 434,874 kr per year, or 36,240 kr per month. Your average tax rate is 34.7% and your marginal tax rate is 48.5%. 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 48.45 kr, hence, your net pay will only increase by 51.55 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 516 kr of net incomes. A 5,000 kr bonus will generate an extra 2,578 kr of net incomes.