In many cases, the government proves this with evidence that the taxpayer deposited untaxed income into the account, concealed his ownership of the account through sham corporations or denied having an offshore account in response to a specific question by his accountant.

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By 2016, all non-work income for those 65 and over would be completely untaxed.

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At the time Obama administration was contemplating applying the same theory to Corps as to Individuals, i.e. taxed on World Wide Income, as there is a significant amount of untaxed (at least not from the US Govt) profits sitting overseas.

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