Analysts expect there to be some areas where banks can do better but no horror stories in a report on culture and conduct due out today.
The Financial Markets Authority and Reserve Bank of New Zealand will report findings from a six-month review of New Zealand's banking sector, spurred by Australia's Royal Commission into misconduct in the finance sector.
Australia's inquiry uncovered instances of financial institutions who charged fees for no service, charged fees to dead people, and lied to regulators.
But Roy Davidson, an analyst with Craigs Investment Partners, said while it was hard to predict what might be in the review, he doubted it would be as bad as the Royal Commission.
"This is based on information supplied by the banks on a voluntary basis," he said. "The Australian inquiry has used legal powers to force banks to supply information. I wouldn't expect it to be as bad."