The Federal Council has put the reform into force from January 1, 2029: the Eigenmietwert is abolished, mortgage interest is deductible only for the share of property that is let, and cantons may introduce a tax on second homes. Savings rates are unchanged: interest on the scale, the 35% withholding is credited, gains on securities and fund units 0%; the SNB rate is 0%.
What this changes in the calculation
Nothing yet; from 2029 the rental model deducts interest only for the let property.
The Federal Council’s draft: citizens of countries outside the EU and EFTA would need a permit for a main home too and would have to sell within 2 years on leaving; fund units of real estate funds and listed residential companies would be closed to foreigners. The consultation closed on July 15, 2026; there is no message to parliament. On September 22, 2026 the National Council adopted motion 24.3961 on returning to the 1985 rules; next is the Council of States.