Australian Government Department of Human Services 
To report fraud against Centrelink, Medicare or Child Support
Fraud Tip-off Line
Phone: 131 524 (Mon – Fri, 9:00 am to 4:45 pm AEST excluding South Australian public holidays)
ACCC – Australian Competition and Consumer Commission 
Little Black Book of Scams
Publications
Scamwatch
ACNC – Australian Charities & Not-for-profits Commission 
To verify a charity is in fact a charity via a search of the ACNC Charity register
FBI 
On the Internet Crime Prevention Tips
Learn tips for protecting your computer, the risk of peer-to-peer systems, the latest e-scams and warnings, Internet fraud schemes, and more.
Insurance Fraud Bureau of Australia
(IFBA)
Report an instance of suspected insurance fraud