Departing ANZ boss David Hisco's personal use of chauffeur driven cars and wine storage costs using the bank's money have cost him his $3 million-a-year job.
ANZ revealed today that concerns about Hisco's personal expenses stretched back nine years and amounted to "tens of thousands of dollars" in company money.
News of his departure today - and the reasons for it - had been met with "shock and disappointment" among ANZ staff. Hisco had previously been on sick leave due to ill-health.
ANZ NZ chairman Sir John Key said Hisco believed he had an agreement with the previous group chief executive of the Australian bank over the use of chauffeur driven cars.
Key told the Herald a lack of transparency over the expenses resulted in them being mischaracterised in ANZ's books.
"We have got to be consistent with the standards we set from the freshly minted teller to the CEO.
"He believed that he had authority for this. He had an explanation for why it was recorded in the way it was. I don't believe it meets the standard that David would set under normal circumstances."
The issue came to light following a review that ANZ Group CEO Shayne Elliott undertook of some members of his executive committee.
Hisco had been CEO of ANZ New Zealand since 2010 when he took over from Jenny Fagg.
In the year to September, he earned $3.76m while the bank made just short of $2 billion in net profit.
ANZ suffered a couple of regulatory blows last month with the Reserve Bank forcing it to hold more capital against housing and farm lending from June 30 and to use the standardised model for calculating its operational risk capital rather than its own internal model.
That's because it had been using a modified internal model for calculating ORC since December 2014 without first getting RBNZ approval.
The ORC measure was one of about 45 internal models ANZ uses and it can continue to use the other 44.
Only the four major banks, which are all owned by Australia's major four banks, are allowed to use their own internal models to calculate capital.
In February, RBNZ revealed that ANZ needed only slightly more than half the capital that the government-owned Kiwibank needs to back each $100 of mortgage lending because of the advantage it gains from using internal models.
Kiwibank, along with all the New Zealand-owned banks, is required to use standardised models.