The mortgage interest bill for kiwis just hit a record quarterly tally of $4.627 billion, according to new quarterly loan reconciliation figures compiled by the Reserve Bank (RBNZ).
The new record, for the September quarter - in a data series that dates back to 2014 - eclipsed the previous record of $4.219 billion set only in the June 2023 quarter.
This is the fifth consecutive quarter of record high interest bills.
It puts kiwis on track to pay their banks well over $17 billion in mortgage interest in this 2023 calendar year.
About $12 billion was charged in 2022, and just $9.5 billion in 2021.
The September quarter 2023 figure is more than double the $2.323 billion that was charged in the same quarter just two years ago. At the end of September this year the average carded, or advertised, bank two-year mortgage rate was almost 7%. Two years earlier it was below 3%.
The figure two years ago was actually the lowest ever amount charged in a quarter. How things changed.

The amount of outstanding mortgages at the end of the September quarter was $348.707 billion.
The RBNZ in its summary of the monthly mortgage data said the increase in the value of outstanding mortgage lending (net credit growth) between 30 June 2023 and 30 September 2023 was $2.8 billion.
This is the fifth lowest growth in a calendar quarter since the records began in the September 2014 quarter.
In terms of monthly mortgage data, total monthly new mortgage commitments were $5.194 billion in September 2023, down 10.2% from $5.782 billion in August.
The RBNZ said the seasonally adjusted value fell by 1.7% from August.
This followed an 8% seasonally adjusted rise in August from July.
In terms of annual comparisons the September 2023 figure was just up on the $5.135 billion committed to in September 2022, but well down on the $6.934 billion for the same month in 2021.
First home buyers (FHBs) have remained active, with the commitments for this grouping tallying up to $1.253 billion in September 2023.
The share of new mortgage commitments to first home buyers rose to 24.1% in September, up from 23.7% in August, meaning the FHBs keep being at or near to record high shares of the mortgage money.
Investors, relatively, remain on the sidelines.
This grouping committed to $894 million of mortgages in September, which represented a 17.2% share of the total, just up from 17.1% in August.
According to the RBNZ the share of new commitments to first home buyers has exceeded the share to investors each month since April 2022.
That's a far cry from the early days of the RBNZ's loan to value ratio (LVR) restrictions that were first imposed in 2013. In those days the FHB grouping would sometimes account for less than 10% of the monthly mortgage total, while investors saw their share at times being as high as 35%.
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