20-4-7. Performance applied according to debtor's intent.
If, at the time of the performance by a debtor described by §20-4-6, the intention or desire of the debtor that such performance should be applied to the extinction of any particular obligation, be manifested to the creditor, it must be so applied.
Source: CivC 1877, §833, subdiv 1; CL 1887, §3457, subdiv 1; RCivC 1903, §1150, subdiv 1; RC 1919, §757 (1); SDC 1939, §47.0207 (1).