New submitter lxrocks writes "Tax authorities in the U.S., Britain, and Australia have announced they are working with a gigantic cache of leaked data that may be the beginnings of one of the largest tax investigations in history. The secret records are believed to include those obtained by the International Consortium of Investigative Journalists that lay bare the individuals behind covert companies and private trusts in the British Virgin Islands, the Cook Islands, Singapore and other offshore hideaways. The IRS said, 'There is nothing illegal about holding assets through offshore entities; however, such offshore arrangements are often used to avoid or evade tax liabilities on income represented by the principal or on the income generated by the underlying assets. In addition, advisors may be subject to civil penalties or criminal prosecution for promoting such arrangements as a means to avoid or evade tax liability or circumvent information reporting requirements.'" 
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