- This change has passed.
Missouri: The annual minimum wage increase goes into effect.
Missouri minimum wage laws require an annual review of its minimum wage and the minimum wage must be increased by the percentage the cost of living has changed from the prior July to the July in the year the review is conducted. The review is conducted on September 30 of each year and the cost of living change is based on the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). Any change to the minimum wage takes effect on January 1 of the following year. MO Statute 290.502(2)