815 ILCS 315/2
A merchant may offer check cashing services, in the course of such business and only as an incident thereto, and may charge fees for each check cashed provided that the check cashing services are incidental to the main business of the merchant. However, check cashing services shall not include any transaction where a customer presents a check for the exact amount of any purchase. The fees charged shall not exceed the greater of $.50 or 1% of the face value of the check cashed. No license shall be required as a condition for providing such services. This Act does not affect the applicability of Sections 2 and 29 of "An Act in relation to the definition, licensing and regulation of community currency exchanges and ambulatory currency exchanges, and the operators and employees thereof, and to make an appropriation therefor, and to provide penalties and remedies for the violation thereof", approved June 30, 1943, as amended, to any activity of a merchant which is not expressly authorized by this Act.
815 ILCS 315/2