When there are mutual accounts between persons who are not merchants, time must be computed from the date of the last item unless the account is liquidated and a balance struck.
(Code 1852, §2489; Code 1867, §2913; Code 1876, §3239; Code 1886, §2627; Code 1896, §2810; Code 1907, §4849; Code 1923, §8963; Code 1940, T. 7, §39.)