IL SB2605

Amends the Illinois False Claims Act to prohibit private citizens from bringing civil actions involving false tax claims administered by the Department of Revenue; only the Attorney General may bring judicial actions for such claims.

Establishes that the Department of Revenue has sole authority to bring administrative actions for false tax claims, while the Attorney General has sole authority to bring judicial actions for the same claims.

Creates a reporting procedure allowing individuals 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 monetary awards to persons reporting false tax claims: 15-30% of collected proceeds for judicial actions and 10-15% for administrative actions by the Department of Revenue, with reduced awards if information comes from public disclosures.

Establishes that appeals of Department of Revenue award determinations must be filed exclusively with the Court of Claims within 30 days; disqualifies persons who initiated or planned the false claim from receiving any award if convicted of related criminal conduct.