54-3-2. Loan of money--Presumption as to interest. Whenever a loan of money is made it is presumed to be made upon interest, unless it is otherwise expressly stipulated at the time in writing.
Source: CivC 1877, § 1094; CL 1887, § 3717; RCivC 1903, § 1413; RC 1919, § 1036; SDC 1939, § 38.0104.