Summary
If you make 400,192 kr a year living in the region of Lolland, Denmark, you will be taxed 134,436 kr. That means that your net pay will be 265,756 kr per year, or 22,146 kr per month. Your average tax rate is 33.6% and your marginal tax rate is 36.5%. 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 36.46 kr, hence, your net pay will only increase by 63.54 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 635 kr of net incomes. A 5,000 kr bonus will generate an extra 3,177 kr of net incomes.