Summary
If you make 609,912 kr a year living in the region of Ringsted, Denmark, you will be taxed 209,611 kr. That means that your net pay will be 400,301 kr per year, or 33,358 kr per month. Your average tax rate is 34.4% and your marginal tax rate is 39.7%. 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 39.66 kr, hence, your net pay will only increase by 60.34 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 603 kr of net incomes. A 5,000 kr bonus will generate an extra 3,017 kr of net incomes.