IL SB1806

Amends the Illinois False Claims Act to exclude civil actions involving false claims related to specific taxes administered by the Department of Revenue from private qui tam lawsuits, restricting such actions to the Attorney General.

Grants the Department of Revenue sole authority to bring administrative actions and the Attorney General sole authority to bring judicial actions for false claims pertaining to the listed tax acts.

Establishes a reporting procedure for persons to provide information about false tax claims to the Department of Revenue, which must notify the Attorney General within 60 days and investigate all allegations.

Provides whistleblower awards ranging from 10-30% of collected proceeds depending on whether the action is administrative or judicial, with reduced awards if the claimant is based on publicly disclosed information.

Appeals of Department of Revenue award determinations must be filed exclusively in the Court of Claims within 30 days of the determination.