20 ILCS 2505/2505-655
Upon certification by the Clerk of the Circuit Court of the amounts of delinquent court fees, the Department of Revenue may collect the past due fees by intercepting the tax refund of any person owing the fees. The Department of Revenue shall enter into an agreement with the Clerk of the Circuit Court as provided in Section 27.2b of the Clerks of Courts Act prior to undertaking any collections under this Section. Any agreement between the Department of Revenue and the Clerk of the Circuit Court for the intercept of tax refunds shall contain provisions for certification of debt, notification to the taxpayer of the intercept, treatment of joint returns, and protest of the intercept that are consistent with the requirements for a refund withholding request under Section 911.2 of the Illinois Income Tax Act.
20 ILCS 2505/2505-655