35 ILCS 625/12
Except as otherwise provided in this Section with respect to the Illinois Independent Tax Tribunal, the Circuit Court of the county wherein a hearing is held shall have power to review all final administrative decisions of the Department in administering this Act. If, however, the administrative proceeding which is to be reviewed judicially is a claim for refund proceeding commenced in accordance with Section 6 of this Act and Section 2a of "An Act in relation to the payment and disposition of moneys received by officers and employees of the State of Illinois by virtue of their office or employment", approved June 9, 1911, as amended, the Circuit Court having jurisdiction of the action for judicial review under this Section and under the Administrative Review Law shall be the same court that entered the injunctive order which is provided for in Section 2a of "An Act in relation to the payment and disposition of moneys received by officers and employees of the State of Illinois by virtue of their office or employment", and which enables such claim proceeding to be processed and disposed of as a claim for refund proceeding rather than as a claim for credit proceeding.
Except as otherwise provided in this Section with respect to the Illinois Independent Tax Tribunal, the provisions of the Administrative Review Law, as amended, and the rules adopted pursuant thereto, shall apply to and govern all proceedings for the judicial review of final administrative decisions of the Department under this Act. The term "administrative decision" is defined as in Section 3-101 of the Code of Civil Procedure, approved August 19, 1981, as amended.
The provisions of the Illinois Independent Tax Tribunal Act of 2012, and the rules adopted pursuant thereto, shall apply to and govern all proceedings for the judicial review of final administrative decisions of the Department that are subject to the jurisdiction of the Illinois Independent Tax Tribunal.
Service upon the Director or Assistant Director of the Department of Revenue of summons issued in any action to review a final administrative decision is service upon the Department. The Department shall certify the record of its proceedings if the taxpayer pays to it the sum of 75 per page of testimony taken before the Department and 25 per page of all other matters contained in such record, except that these charges may be waived where the Department is satisfied that the aggrieved party is a poor person who cannot afford to pay such charges.
35 ILCS 625/12