The IRS whistleblower reward law is divided into two sections, The first section is 26 U.S.C. § 7623(a). Section (a) gives the IRS the discretion to pay whistleblower awards. This section is based on an older provision in the law originally enacted in the 1800s. Awards paid under this provision are strictly within the discretion of the IRS and there is no appeal of a denial.
In 2006, the IRS tax whistleblower law was amended to include a section 26 U.S.C. § 7623(b). This section of the law created a mandatory reward law. If a whistleblower qualified for a reward under this provision, the IRS is required to pay a reward of not less than 15% and not more than 30% of any collected proceeds obtained by the IRS based on original information provided by the whistleblower.
Section (b) does not cover all award claims. It only covers claims filed in cases in which the “proceeds in dispute exceed $2,000,000.” Additionally, if the claim is filed against an individual, that individual’s gross income must also exceed $200,000.
In other words, small tax cases are covered under section (a) of the law, and any award is discretionary. But large tax cases are covered under section (b) of the law, and payment of awards to qualified persons is mandatory.