ANZ's Business Outlook Survey for March showed the New Zealand economy is "quietly losing steam", the bank said.
The bank said "headline" business confidence fell 7 points in the month and a net 38 per cent of respondents reported that they expected general business conditions to deteriorate in the year ahead.
Firms' expectations for their own activity eased 5 points to a net 6 per cent expecting a lift.
"Most activity indicators eased slightly in March, consistent with our expectation that the economy is quietly losing steam" ANZ chief economist, Sharon Zollner, said.
Zollner said the New Zealand economy was delicately poised.