Summary
If you make 3,150 kr a year living in the region of Vejle, Denmark, you will be taxed 1,519 kr. That means that your net pay will be 1,631 kr per year, or 136 kr per month. Your average tax rate is 48.2% and your marginal tax rate is 21.0%. 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 20.97 kr, hence, your net pay will only increase by 79.03 kr.
Bonus Example
A 1,000 kr bonus will generate an extra 790 kr of net incomes. A 5,000 kr bonus will generate an extra 3,952 kr of net incomes.