ANZ Banking Group, the New Zealand division's Melbourne-based parent company, reported an 11 per cent rise in cash profit to A$3.5 billion ($3.8 billion).
The bank said it had increased its share of this country's home lending market by 44 basis points compared with a year ago while at the same time implementing the Reserve Bank's restrictions on high loan-to-value (LVR) lending.
The central bank introduced the LVR policy in October in an effort to cool a surging housing market in many parts of the country, especially Auckland.
"We've still had good volumes but people have been putting in larger deposits and by and large that's what the Reserve Bank wanted - they wanted to see people have greater equity in their homes ..."
Hisco said the bank had continued to approve high-LVR loans, while remaining within the Reserve Bank's limits.
ANZ New Zealand's wealth division, which accounts for more than a quarter of this country's KiwiSaver users, reported earnings of $121 million, up from $38 million in the same period a year earlier.
Hisco said he was expecting even better results in the future, although there could be a "blip in the economy" as a result of this year's elections.
"But we'd hope that we can get through the election and keep powering on without too many issues because New Zealand's on the cusp of having some good years of economic output."
ANZ's result comes on the back of ASB's $416 million record half-year profit, which it reported in February. Westpac and the BNZ will report their interim results next week.