288.113. Each employer's rate for the twelve months commencingJanuary first of any calendar year shall be determined on the basis of theemployer's record through the preceding June thirtieth. In the event thedivision has been unable to calculate the rate, or the calculation of suchrate by the division has not yet become final, in time to advise suchemployer of such rate a reasonable time before the date any contributionpayment may be due, the rate in effect for the preceding calendar yearshall be paid by each employer and an adjustment of any overpayment shallbe permitted or additional payment demanded in the event of anunderpayment, in connection with any different rate established for suchcalendar year, but no interest shall accrue on any such underpayment untilthe expiration of thirty days from the mailing of such demand.
(L. 1951 p. 564 § 288.110, A.L. 1957 p. 531, A.L. 1965 p. 420, A.L. 1965 2d Ex. Sess. p. 927, A.L. 1967 pp. 396 and 401, subdiv. (1) of subsec. 1 of §288.120, A.L. 1994 S.B. 559, A.L. 1996 H.B. 1368)