Summary
If you make 585,839 kr a year living in the region of Gladsaxe, Denmark, you will be taxed 187,093 kr. That means that your net pay will be 398,746 kr per year, or 33,229 kr per month. Your average tax rate is 31.9% and your marginal tax rate is 36.1%. 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 36.14 kr, hence, your net pay will only increase by 63.86 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 639 kr of net incomes. A 5,000 kr bonus will generate an extra 3,193 kr of net incomes.