The current Missouri State Sales Tax Rate is 4.225%, and has been in place since 1934. If you include the county taxes and the local taxes the total MO sales tax rate is between 4.225% and 10.350%.
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Use the Sales Tax Calculator to find what you paid in sales tax for a product or for the total amount of your purchase, and the Total Price including the Sales Tax.
The Sales Tax Amount is calculated by multiplying the price you paid before taxes with the sales tax rate.
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Check the current Missouri Sales Tax Rate for every city, including state, county and city taxes.