Proposed debt-to-income lending restrictions would have a massive impact on the Auckland housing market and would do a better job of catching investors than existing rules, says the chief executive of Cooperative Bank.
The Reserve Bank this week indicated it was looking at the possibility of introducing new mortgage lending restrictions based on debt to income ratios.
The rules would require Government approval but initial reaction from Prime Minister John Key and Finance Minister Bill English have indicated they are prepared to consider the option.
Co-op Bank chief Bruce McLachlan said he had modelled a scenario based on the UK where lending ratios were set at 4.5 times income.
Under that scenario the rules would catch 38 per cent of Co-op Bank's lending in Auckland he said, as opposed to just 16 per cent nationwide.