35 ILCS 143/10-35a

Any person who fails to keep books and records or fails to produce books and records for inspection, as required by Section 10-35, is liable to pay to the Department, for deposit in the Tax Compliance and Administration Fund, a penalty of $1,000 for the first failure to keep books and records or failure to produce books and records for inspection, as required by Section 10-35, and $3,000 for each subsequent failure to keep books and records or failure to produce books and records for inspection, as required by Section 10-35. The Department may adopt rules to administer the penalties under this Section.