One of the proposals for the 2014 housing measures is that the mortgage interest should no longer remain deductible in the tax bracket of 52% as of 1 January 2014. The mortgage interest may still be deductible, but the maximum tax rate for the mortgage interest will be reduced by half a percent from 1 January 2014 annually.
This will be achieved by adding the mortgage interest which is deducted at the rate of 52% to the income and will be taxed at a rate of 0.5%. This tax rate of 0,5% rate will rise annually until the maximum rate for the mortgage interest deduction is equal to the rate of the 42% tax bracket.