There has been plenty of airplay over recent years about large global corporations such as Google using complex tax structures and tax havens to shift local profits offshore and avoid paying tax in Australia. But the recent Channel 7 exposé about the PWC Luxembourg whistleblower is the biggest "smoking gun" to date.
The attached Yahoo article provides a good summary of the Channel 7 revelations. It includes quotes from IKEA and Google justifying their approaches. But read the Google one carefully - they are admitting that they are not paying tax in the local jurisdictions where they are generating the revenues (and profits) but back home where they are headquartered - ie they aren't paying their fair share of tax in Australia!
Some of the world’s biggest and most well-known companies have been implicated in the international scandal, including 20 which were operating in Australia but were diverting revenue to overseas tax havens. Statements from some of the biggest names have assured the senate they are operating honestly where taxes are concerned. "The IKEA Group retailer in Australia pays all taxes incurred nationally and locally in accordance with Australian laws and regulations," An Ikea spokesperson said. "We pay the lion's share of our taxes to the country where our headquarters is based," Maile Carnegie, Managing Director of Google Australia, told the Senate inquiry.