Section 625 ILCS 5/2-121 - Local Government tax(a) No owner of a vehicle who shall have obtained a certificate from the Secretary of State and paid the registration fee and tax as provided in this Act, shall be required by any county, city, village, incorporated town, or other municipal corporation within the State other than a county, city, village, incorporated town, or other municipal corporation in which the owner resides or in which a vehicle has its situs or base, to pay any tax or license fee for the use of the vehicle. The county, city, village, or incorporated town in which the owner resides or in which a vehicle has its situs or base, except commercial motor vehicles as defined in paragraph (2) of Section 18b-101 that are registered under Section 3-402.1, may impose a tax or license fee as is provided in Section 8-11-4 of the Illinois Municipal Code or a similar county ordinance that imposes a tax or license fee on an owner of a vehicle for the use of the vehicle. Nor shall the owner be required to display upon his vehicle any plate or tax or license number other than that issued by the Secretary of State or by the county, city, village, incorporated town, or other municipal corporation within the State within which the owner resides or in which a vehicle has its situs or base. However, a resident owner shall not be required to display on his vehicle, the plate or tax or license number issued by the county, city, village, or incorporated town of his residence if his vehicle is displaying the plate or tax or license number issued by the place wherein the vehicle has its situs or base.
This subsection (a) applies to ordinances enacted by any county, city, village, incorporated town, or other municipal corporation. Any provision of an ordinance enacted by a county, city, village, incorporated town, or other municipal corporation that is inconsistent with this subsection (a) is null and void.
(b) No county, city, village, incorporated town, or other municipal corporation, including a home rule unit, may impose a tax or license fee under Section 8-11-4 of the Illinois Municipal Code, or impose a similar tax or license fee under home rule powers, upon any commercial vehicle as defined in paragraph (2) of Section 18b-101 that is registered under Section 3-402.1. This subsection (b) is a denial and limitation of home rule powers and functions under subsection (g) of Section 6 of Article VII of the Illinois Constitution. P.A. 90-433, eff. 8/16/1997.