Summary
If you make 659,932 kr a year living in the region of Aarhus, Denmark, you will be taxed 224,563 kr. That means that your net pay will be 435,369 kr per year, or 36,281 kr per month. Your average tax rate is 34.0% and your marginal tax rate is -110.3%. 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 -110.26 kr, hence, your net pay will only increase by 210 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 2,103 kr of net incomes. A 5,000 kr bonus will generate an extra 10,513 kr of net incomes.