Mo. Rev. Stat. § 148.400
All insurance companies or associations organized in or admitted to this state may deduct from premium taxes payable to this state, in addition to all other credits allowed by law, income taxes, franchise taxes, personal property taxes, valuation fees, registration fees and examination fees paid, including taxes and fees paid by the attorney in fact of a reciprocal or interinsurance exchange to the extent attributable to the principal business as such attorney in fact, under any law of this state.
(L. 1945 p. 993 § 6098c, A.L. 1969 3d Ex. Sess. H.B. 21)
Effective 1-1-71