Summary
If you make 581,106 kr a year living in the region of Slagelse, Denmark, you will be taxed 193,739 kr. That means that your net pay will be 387,367 kr per year, or 32,281 kr per month. Your average tax rate is 33.3% and your marginal tax rate is 37.7%. 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 37.69 kr, hence, your net pay will only increase by 62.31 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 623 kr of net incomes. A 5,000 kr bonus will generate an extra 3,116 kr of net incomes.