Summary
If you make 17,778 kr a year living in the region of Kalundborg, Denmark, you will be taxed 6,084 kr. That means that your net pay will be 11,694 kr per year, or 974 kr per month. Your average tax rate is 34.2% 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.