Mo. Rev. Stat. § 88.910: Recording of tax bills.

All such tax bills shall be recorded by the city clerk in a book kept by him for such purpose before the delivery of said tax bills. And said city clerk shall release said tax bills on the margin of the record thereof, upon presentation of the tax bills duly marked "paid" by the holder or assignee, or upon presentation of other suitable evidence that such tax bill has been paid in full.