The confirmation that the Office of Fair Trading is investigating her charity comes just days after Zaetta, 40, was arrested in Surfers Paradise, the Herald Sun reported.
There are allegations that the actress could be asked questions regarding her company asking for donations for war-affected children while not being registered as an official charity.
Zaetta launched the company at a Gold Coast nightclub in 2009 with now former co-director Grant Hilton, citing her entertainment tours to conflict zones as her inspiration for wanting to help disadvantaged children.
The company�s website, peaceforthechildren.com, claims PFTC is a registered overseas aid fund that provides funding for projects in Afghanistan, Tibet and East Timor.
The website thanks celebrities including �Underbelly� star Damien Walshe-Howling, Warwick Capper, Jeff Fenech and Ky Hurst for helping raise 30,000 dollars at a December nightclub fundraiser on the Gold Coast that allowed �Tibetan children in exile in India to enjoy presents for Xmas�.
A spokesman for the Office of Fair Trading has confirmed the Bundall-based Peace For The Children was not a registered charity in Queensland and as such was not authorised to publicly fundraise in the state.
He verified the fundraising activities of Peace For the Children Ltd were under investigation and declined to comment further until the case was finalised.
PFTC does not appear on an AusAID list of registered overseas aid funds approved by the Australian Taxation Office.
An Australian Business Registry search also shows the company is not entitled to tax-deductible gifts or concessions.