We report contributions to the Danish tax authorities, SKAT, every year in January.
This is done automatically if we have your Danish social security number (CPR number). If we do not have your social security number, we will not be able to report your contributions, and you will thus lose the deduction.
You can read more about deductions on SKAT's website.
The maximum deduction in 2022 is DKK 17,200.