Mo. Rev. Stat. § 94.822

A tourism tax authorized by section 94.802 or section * 94.805 shall be effective at such time as the governing body of the municipality shall determine within ninety days from the date such tax is approved by the voters of the municipality pursuant to section 94.817. After the effective date of any tax imposed under the provisions of sections 94.800 to 94.825, the municipality shall perform all functions incident to the administration, collection, enforcement, and operation of the tax. The taxes imposed under sections 94.800 to 94.825 shall be collected together and reported upon such forms and under such ordinances or administrative rules and regulations as may be prescribed by the governing body of the municipality.