The Crown alleged Bezuidenhoudt failed to file that statement between May 2016 and July 2019 that breached the Insolvency Act.
It was further alleged that he, as an undischarged bankrupt, took part in the management of a business between July 2017 and July 2019 without reasonable excuse.
Bezuidenhoudt pleaded not guilty to the charges and elected a jury trial in the Whangārei District Court where he was last week
found guilty.
He chose to represent himself but the court appointed lawyer John Moroney as an amicus curiae to help him during the trial.
In his opening address to the jury Crown solicitor Mike Smith said the issue was about Bezuidenhoudt's non-notification to the Official Assignee of him providing accounting services rather than any suggestion he did not do a good job.
Moroney told the jury Bezuidenhoudt had a reasonable excuse as to why he did not file a statement of affairs.
Bezuidenhoudt elected to give evidence during his trial.
He's on bail and will be sentenced next month.