The police investigation started in the United Kingdom in 2010 where the two complainants, who were between 11 and 15 at the time, were then visiting.
The man was later interviewed by Australian police and was arrested last year when he voluntarily returned to New Zealand
During the trial the man's lawyer, Paul Mabey QC, maintained the allegations were "maliciously false".
The best friend of one of the complainants gave evidence refuting claims her friend told her she had been sexually abused by the man.
"She never said anything to me. You wouldn't forget something like that," the woman said.