Mo. Rev. Stat. § 140.220: County clerk to act as clerk of sale — fee.

1. The clerk of the county commission shall attend, either in person or by deputy, as the clerk of the sale of such delinquent land, and shall enter the same on a sufficient record book giving a description of the proper tract or lot, to whom sold, and the price, or whether the same remains unsold.

2. For his services as in this section provided he shall, except in those counties having a population in excess of one hundred thousand, receive the sum of twenty-five cents on each tract of land or lot sold, to become part of the costs of sale and paid by the purchaser, which fee shall include entry or recital of redemption on such record.