815 ILCS 205/4.1a
Charges for and cost of the following items paid or incurred by any lender in connection with any loan shall not be deemed to be charges for or in connection with any loan of money referred to in Section 6 of this Act, or charges by the lender as a consideration for the loan referred to in this Section:
(f) if the agreement governing the loan so provides, for each loan installment in default for a period of not less than 10 days, a charge in an amount not in excess of 5% of such loan installment. Only one delinquency charge may be collected on any such loan installment regardless of the period during which it remains in default. Payments timely received by the lender under a written extension or deferral agreement shall not be subject to any delinquency charge. Notwithstanding items (k) and (l) of subsection (1) of Section 4 of this Act, the lender, in the case of any nonexempt residential mortgage loan, as defined in Section 1-4 of the Residential Mortgage License Act of 1987, other than a high risk home loan as defined in Section 10 of the High Risk Home Loan Act, shall have the right to include a prepayment penalty that extends no longer than the fixed rate period of a variable rate mortgage provided that, if a prepayment is made during the fixed rate period and not in connection with the sale or destruction of the dwelling securing the loan, the lender shall receive an amount that is no more than:
(3) 1% of the total loan amount if the prepayment is made within the third 12-month period following the date the loan was made, if the fixed rate period extends 3 years. This Section applies to loans made, refinanced, renewed, extended, or modified on or after the effective date of this amendatory Act of the 95th General Assembly.
Where there is a charge in addition to the stated rate of interest payable directly or indirectly by the borrower and imposed directly or indirectly by the lender as a consideration for the loan, or for or in connection with the loan of money, whether paid or payable by the borrower, the seller, or any other person on behalf of the borrower to the lender or to a third party, or for or in connection with the loan of money, other than as hereinabove in this Section provided, whether denominated "points," "service charge," "discount," "commission," or otherwise, and without regard to declining balances of principal which would result from any required or optional amortization of the principal of the loan, the rate of interest shall be calculated in the following manner:
The percentage of the principal amount of the loan represented by all of such charges shall first be computed, which in the case of a loan with an interest rate in excess of 8% per annum secured by residential real estate, other than loans described in paragraphs (e) and (f) of Section 4, shall not exceed 3% of such principal amount. Said percentage shall then be divided by the number of years and fractions thereof of the period of the loan according to its stated maturity. The percentage thus obtained shall then be added to the percentage of the stated annual rate of interest.
(from Ch. 17, par. 6406)
(Source: P.A. 97-849, eff. 1-10-14 (see Section 10 of P.A. 97-1159, 78 Fed. Reg. 6855, 6857, 78 Fed. Reg. 10695, 10696, and 78 Fed. Reg. 44685, 44686).)