Deductions & tax tools - 2026
Calculate your deductions with free tools - fast estimates and clear explanations.
What are the deduction calculators used for?
Deductions can have a significant impact on your tax and how much you take home. With our deduction and tax tools, you can quickly get an overview of which deductions may be relevant to you and approximately how large your deduction could be. The calculators are designed to provide fast, easy-to-understand estimates, making it easier to assess your finances. The deductions are estimates and do not necessarily reflect the final deduction. The deduction calculations are based on data from Skat.dk: you can read more at Skat.dk.
Choose the calculator that matches your situation – for example commuting to work, household services, home improvements, or donations.
How to use the results in practice
The results from the calculators are indicative estimates that can be used to understand the approximate size of your deduction. Many people use the calculations as a basis for updating their preliminary tax assessment, so that their tax better reflects their actual circumstances throughout the year. You can at any time check the Danish Tax Agency’s own calculators by clicking here.
Remember that the final deduction always depends on your specific situation, documentation, and the rules that apply at the Danish Tax Agency.
Estimate vs. final deduction
The calculators are based on standard rules and rates, but there may be special circumstances that affect your deduction. Therefore, the calculations should be seen as a tool, not as a final decision.