That means the preliminary tax statements released this month will eventually form the basis of the final tax statement, årsopgørelse, which is released in the March after the completion of the tax year (so for the 2026 tax year, you'll get your tax statement in March 2027). You can check how much tax you’ve paid or are due to pay during the course of the year and edit your income and deductions details on the preliminary version of the return, the forskudsopgørelse.