Indiana Code Title 23. Business and Other Associations § 23-17-7-9

Sec. 9. A member may advance or loan money to the corporation that may be returned or repaid to the member at a time and under a condition that the corporation and the member agree.  However, upon return or repayment, the member may not receive more than the principal amount of the money advanced or loaned, together with reasonable interest at a rate that is not in excess of market rate, whether fixed or variable, otherwise available without premium to the corporation under the same circumstances at the time of the advance or loan.