Summary
If you make 40,950 kr a year living in the region of Kalundborg, Denmark, you will be taxed 13,414 kr. That means that your net pay will be 27,536 kr per year, or 2,295 kr per month. Your average tax rate is 32.8% and your marginal tax rate is 31.6%. 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 31.63 kr, hence, your net pay will only increase by 68.37 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 684 kr of net incomes. A 5,000 kr bonus will generate an extra 3,419 kr of net incomes.