After years of political opposition and scepticism, the Reserve Bank (RBNZ) looks set to implement debt-to-income (DTI) ratio restrictions on banks' mortgage lending with the cautious support of New Zealand’s two main political parties.
In an email to Interest.co.nz, Finance Minister Nicola Willis said she had been briefed on the RBNZ’s consultation, but it wouldn’t be appropriate for her to comment on the specifics. DTI restrictions limit the amount of debt borrowers can take on relative to their income.
“One of the bank’s main objectives is protecting and promoting the stability of New Zealand’s financial system. I have been advised that the measures the bank is consulting on are intended to deliver on that objective,” Willis said.
Just over two years ago, the National Party’s shadow treasurer, Andrew Bailey, was criticizing the Labour Government for considering the restrictions.
The outcome of the policy should be obvious to anyone with “even the most rudimentary understanding” of banking, he said in a 2021 press release.
“The first people banks will cut lending to are those on low incomes, making it even harder than it already is for first home buyers to get onto the property ladder”.
He said it showed that Labour’s Finance Minister, Grant Robertson, couldn’t “kick his addiction to counter-productive meddling in the housing market”.
This was somewhat ironic, since a few years earlier Robertson was in opposition and was putting out press releases criticizing the National-led government for considering the restrictions.
“Blanket debt to income ratios will cause widespread damage and almost certainly have unintended consequences,” Robertson said in 2016.
“Along with building more affordable homes through KiwiBuild, Labour would focus on cracking down on the speculators, not punishing first home buyers”.
Facts change
Speaking to Interest.co.nz on Wednesday, Robertson said he was convinced that debt-to-income ratio restrictions could be needed after the 2020 housing boom.
The Reserve Bank actually removed its loan-to-value ratio (LVR) restrictions during the covid crisis as part of its efforts to ensure the economy didn’t slump into recession. Instead, investors rushed to take advantage of low interest rates and a speculative bubble sent house prices soaring — only to slump when monetary policy was tightened.
In December, the RBNZ published a note reflecting on its regulation during the period. It concluded that debt-to-income restrictions would have helped protect borrowers.
“Anchoring debt levels to income could have added to borrowers’ resilience to servicing difficulties from higher interest rates, which LVR restrictions were largely unable to do because they target a different type of risk,” it wrote.
Robertson ultimately gave the Reserve Bank permission to use the tool in June 2021.
On Wednesday, he said it was better to have the tool ready to go, if it was needed, as it couldn’t be suddenly switched on in a crisis.
Non-binding settings
The new regulation will be first applied with loose settings that are unlikely to restrict borrowing in the current economic environment.
Robertson also took “some credit” for the differentiation between owner-occupiers and investors, who will face different DTI restrictions.
The RBNZ has proposed restricting banks from lending more than 20% of their loans to owner-occupiers and investors with DTI ratios above six and seven times their income, respectively.
A research note by ANZ economists found the proportion of lending above these proposed limits peaked at over 35% for owner-occupiers and over 40% for first home buyers in 2021.
“While first home buyers are not explicitly targeted by DTIs, they will be more affected simply because of the fact that first home buyers typically require more borrowing than people who are upsizing or moving,” they wrote.
ANZ, the country's biggest mortgage lender with more than $105 billion worth of exposure, said the new limits were unlikely to have much impact on lending this year. They have been pitched as “guardrails” that will only become binding in a future housing boom.
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