815 ILCS 122/2-10: Permitted fees.

(a) If there are insufficient funds to pay a check, Automatic Clearing House (ACH) debit, or any other item described in the definition of payday loan under Section 1-10 on the day of presentment and only after the lender has incurred an expense, a lender may charge a fee not to exceed $25. Only one such fee may be collected by the lender with respect to a particular check, ACH debit, or item even if it has been deposited and returned more than once. A lender shall present the check, ACH debit, or other item described in the definition of payday loan under Section 1-10 for payment not more than twice. A fee charged under this subsection (a) is a lender's exclusive charge for late payment.

(a-5) A lender may charge a borrower a fee not to exceed $1 for the verification required under Section 2-15 of this Act in connection with a payday loan. In no event may a fee be greater than the amount charged by the certified consumer reporting service. Only one such fee may be collected by the lender with respect to a particular loan.

(b) Except for the finance charges described in Section 2-5 and as specifically allowed by this Section, a lender may not impose on a consumer any additional finance charges, interest, fees, or charges of any sort for any purpose.