Landlords are in the gun with the Reserve Bank seeking feedback on ushering in a tougher new mortgage regime for residential property investors.
Steeper lending charges have been widely expected and now Toby Fiennes, the banks' head of prudential supervision, has released details of the consultation the bank is embarking on which closes on April 7.
He indicated landlords could be a danger to New Zealand's financial system in the event of a housing collapse.
"International evidence suggests that default rates and loss rates experienced during sharp housing market downturns tend to be higher for residential property investment loans than for loans to owner occupiers," he said.
"The proposal would bring the Reserve Bank's framework more into line with the international Basel standards for bank capital.