Louisiana Revised Statutes Tit. 6, § 1224. Calculation of interest; postpayments and prepayments

B. (1) For purposes of this Part, a “prepayment” shall mean the payment of the total indebtedness, with the exception of late payment penalties if incurred or charged, on any date before the date specified in the contract or loan agreement on which the total indebtedness shall be paid in full, or before the date on which all payments, if timely made, shall have been made.

(2) In the event of a prepayment of the indebtedness which is made on a date after the date on which interest on the indebtedness was last computed, calculated, charged, or collected, but before the next date on which interest on the indebtedness was calculated, computed, charged, or collected, the lender may calculate, charge, and collect interest on the indebtedness for the period which elapsed between the date on which the prepayment is made and the date on which interest on the indebtedness was last computed, calculated, charged, or collected at a rate equal to 1/360 of the annual rate for each day which so elapsed, which rate shall be applied to the indebtedness outstanding as of the date of prepayment. The lender shall refund to the borrower any interest charged or collected which exceeds that which the lender may charge or collect pursuant to this Section.