If you make 300,000,- kr a year living in the region of Christiansø, Denmark, you will be taxed 33,432, kr. That means that your net pay will be 266,568,- kr per year, or 22,214,- kr per month. Your average tax rate is 11.1% and your marginal tax rate is 11.8%. 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 11.78,- kr, hence, your net pay will only increase by 88.22,- kr.
A 1,000,- kr bonus will generate an extra 882,- kr of net incomes. A 5,000,- kr bonus will generate an extra 4,411,- kr of net incomes.