County Ratios
Ratio studies follow each biennial reassessment of property in Missouri. Reassessments are completed on January 1st of each odd numbered year. It takes approximately two years after a reassessment to complete a ratio study, so the results for the current reassessment cycle will not be immediately available.
*Historical ratios: Available upon request.
Assessment Ratios by Cycle
A summary of official assessment ratios by reassessment cycle for each county.
STC Manual
An introduction to understanding the ratio study, with a brief summary of the State Tax Commission ratio study procedures.