A. Notwithstanding any statutory or case law relating to interest or usury, loans made by an industrial loan association payable in weekly, monthly, or other periodic installments may be enforced as agreed in the contract of indebtedness. In addition, such association may charge or collect in advance from the borrower on such loans a loan fee not exceeding two percent of the principal amount of the loan. An interest rate charged in advance upon the entire amount of the loan or pursuant to a written modification agreement shall be lawful.
B. An industrial loan association may charge interest at an annual rate not exceeding 18 percent on loans payable on demand or in a single payment. In addition, such association may charge or collect in advance from the borrower on such loans a loan fee not exceeding two percent of the principal amount of the loan.