Summary
If you make 609,960 kr a year living in the region of Fredericia, Denmark, you will be taxed 206,228 kr. That means that your net pay will be 403,732 kr per year, or 33,644 kr per month. Your average tax rate is 33.8% and your marginal tax rate is 44.4%. 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 44.39 kr, hence, your net pay will only increase by 55.61 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 556 kr of net incomes. A 5,000 kr bonus will generate an extra 2,781 kr of net incomes.