Everybody must have a tax card when working and having an income in Denmark. The tax card is to be used by your employer who automatically will deduct tax from your wages and make sure that it is transferred to TAX.
The tax card provides you with information about the amount of money to be paid in tax as a percentage of your income minus possible deductions. The tax card is calculated on the basis of information provided by you as to estimated income and any deductions for expenses you may have for the remaining year.
Every year TAX draws up an annual income assessment of your total income and tax payments, and you will get a tax refund if you have paid too much. Likewise, you will be charged for outstanding tax if you have paid too little in the past year.
SKAT will automatically receive most information from employers, banks, trade unions, unemployment funds etc. However, you must check and notify TAX if the information is incorrect.
You can read more about the Danish tax conditions and how the money is spent, by clicking HIER.