It is taxed at 40%, so it&#x27;s an inherent -1.2% interest rate. Otherwise you&#x27;re spot on.<p>The &quot;huurwaardeforfait&quot; is just a handy political fiction to get more taxes from home owners, who are subsidized a lot because mortgage interest is deductable. It was  probably politically easier to get a law for a new tax through parliament than to lower the mortgage deduction at th etime.