The director of revenue shall annually, on or before the fifteenth day of December, return all savings association and credit union taxes collected, less two percent thereof which shall be retained by the state for collection, to the county treasury of the county in which the particular taxpayer has its office. If any association operates more than one office or branch in the state of Missouri, the association shall file the return giving the address of each such office or branch and setting forth the total dollar amounts of savings accounts, deposits, or repurchase agreements of each such office. The political subdivisions within which the said office or offices are situated shall share the tax hereby imposed upon the same basis that the dollar amounts of the deposits or accounts bear to the total dollar amount of the deposits or accounts of the association, and the director of revenue shall allocate the tax collected accordingly; provided, that if a taxpayer has an office or offices outside the state of Missouri, the total of the dollar amount of deposits and accounts at an office or offices outside the state of Missouri shall be excluded in determining the total deposits and accounts of the taxpayer. A statement of the exact amount due each political subdivision as determined by applying the local rates of levy to the proceeds of the tax shall accompany each payment. The several county treasurers and the treasurer of St. Louis City are hereby directed to distribute all amounts so received from the director of revenue according to the allocations contained in the statements made by the director of revenue.