A Danish bank has launched the worlds first negative interest rate mortgage handing out loans to homeowners where the charge is minus 0.5% a year. Negative interest rates effectively mean that a bank pays a borrower to take money off their hands, so they pay back less than they have been loaned. Jyske Bank, Denmarks third largest, has begun offering borrowers a 10-year deal at -0.5%, while another Danish bank, Nordea, says it will begin offering 20-year fixed-rate deals at 0% and a 30-year mortgage at 0.5%. Under its negative mortgage, Jyske said borrowers will make a monthly repayment as usual but the amount still outstanding will be reduced each month by more than the borrower has paid. The mortgage is possible because Denmark, as well as Sweden and Switzerland, has seen rates in money markets drop to levels that turn banking upside-down. Hegh said Jyske Bank is able to go into money markets and borrow from institutional investors at a negative rate, and is simply passing this on to its customers. In Denmark, interest rates on savings deposited in Jyske ... have already fallen to zero. In reality, the Jyske mortgage borrower in Denmark is likely to end up paying back a little more than they borrowed, as there are still fees and charges to pay to compensate the bank for arranging the deal, even when the nominal rate is negative.