Summary
If you make 128,500 kr a year living in the region of Jammerbugt, Denmark, you will be taxed 42,828 kr. That means that your net pay will be 85,672 kr per year, or 7,139 kr per month. Your average tax rate is 33.3% and your marginal tax rate is 33.0%. 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 33 kr, hence, your net pay will only increase by 67 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 670 kr of net incomes. A 5,000 kr bonus will generate an extra 3,350 kr of net incomes.