35 ILCS 200/31-50
Any person who willfully falsifies the value of transferred real estate on the transfer declaration required by Section 31-25 or who willfully falsifies or willfully omits any other information required by Section 31-25 or who willfully and falsely claims a transaction to be exempt under Section 31-45 is guilty of a Class B misdemeanor. Any person who knowingly submits a false statement concerning the identity of a grantee under the provisions of this Article is guilty of a Class C misdemeanor. A second or subsequent conviction of an offense is a Class A misdemeanor. A prosecution for any act in violation of this Article may be commenced at any time within 5 years of the commission of the act. Only the buyer or the buyer's representative shall attest to the accuracy of the financing information reported on the declaration and required by Section 31-25. Any person convicted of any offense under this Law is liable for the tax due in addition to any fines imposed by the court.
35 ILCS 200/31-50