new valuations will be implemented and updated every second year starting in the new tax system replaces a nominal tax freeze of property taxation with proportional taxation maintaining a progressive element for the most valuable homes no changes have been made to mortgage interest rate deductibility households with debttoincome ratios above are required to fix interest rates for at least five years if the loantovalue ratio is above thus locally there are some concerns whether house prices are increasing faster than warranted by disposable income growth and low interest rates thereby elevating debttoincome ratios for new homeowners systemic risk council i i this prompted the authorities to tighten financial regulation by reducing access to risky loans for households with high debt relative to income from january table