Indiana Code Title 24. Trade Regulation § 24-4.5-3-108

(1) the lender may permit the debtor to obtain loans from time to time;

(2) the unpaid balances of principal and the loan finance and other appropriate charges are debited to an account;

(3) a loan finance charge if made is not precomputed but is computed on the outstanding unpaid balances of the debtor's account from time to time;  and

(4) the debtor has the privilege of paying the balances in installments.