Danes can deduct around 25% of paid interests (and "contribution fees" on mortgages). A little more for paid interests below DKK 50000 yearly and a little less for paid interests above DKK 50000.

A typical home can sell for DKK 4M. With a 20 year 0% interest and 80% of the 4M mortgaged (the maximum allowed), the "contribution fee" would be set at 0,75%.

That would amount to interests (0%) and "contribution fee" (0.75%) yearly around DKK 24000 (1st year) of which 25% = DKK 6000 will be deductible.

To put that into perspective:

A. An average "medium level" worker will have an average income of DKK 466,660/year[1] and pay DKK 159,212 in taxes, leaving a post-taxes income of DKK 307,448.

B. An unemployed will receive DKK 225,894/year and pay DKK 58,952 in taxes, leaving a post-taxes income of DKK 166.942

So in reality the mortgage tax deduction does not amount to much. With those low interest rates it is around DKK 6000 or DKK 500/month for a typical family.

Compare DKK 6000/year or DKK 500/month to: - a pair of Levi's: DKK 660 - a 4G/5G plan with 50GB/month: DKK 160/month - iPhone 12: DKK 7000

[1] https://www.dst.dk/en/Statistik/emner/arbejde-indkomst-og-fo...