148.320. Every stock insurance company organized under the provisions of sections 379.010 to 379.203, RSMo, shall quarterly pay a tax upon the direct premiums received during the calendar year, whether in cash or notes, in this state and on account of business done in this state at a rate of two percent per annum in lieu of all other taxes except taxes on real and tangible personal property, taxes on incomes and on franchises and license taxes; provided, that such insurance companies shall be credited with canceled or returned premiums, actually paid during the year in this state.
(RSMo 1939 § 6091, A.L. 1947 V. II p. 271, A.L. 1971 S.B. 171, A.L. 1982 S.B. 470)