" In order to qualify for a reward, a whistleblower must provide information on tax fraud or tax underpayments that exceeds $2 million in tax, penalties and interest. In addition, the income of an individual taxpayer who owes tax that has not been reported under this program must exceed $200,000 in the year the tax was due. As a practical matter, the IRS is considering at this time only tax underpayment cases of $2 million or more. "
