 Furthermore, he said, the Seychelles, an African nation, is the fourth most mentioned tax haven in the documents.On April 22, 2016, Australia said it would create a public register showing the beneficial, or actual, owners of shell companies, as part of an effort to stamp out tax avoidance by multinational corporations.The Australian Taxation Office has announced that it is investigating 800 individual Australian taxpayers on the Mossack Fonseca list of clients and that some of the cases may be referred to the country's Serious Financial Crime Task Force.