Tax administration; award for tax underpayment detection assistance. Authorizes the Tax Commissioner to award monetary compensation to individuals who provide information that assists the Department of Taxation in the successful collection of delinquent state taxes owed by other individual or business taxpayers. The bill provides that such awards may be given only if (i) the underpaying individual taxpayer's gross income exceeds $100,000 or the underpaying business taxpayer's gross income exceeds $500,000 and (ii) the amount in question exceeds $50,000.