Missouri Reverse Sales Tax Calculator.

Missouri has an unusual state sales tax rate of 4.225% — the unusual decimal is the result of various state constitutional amendments and budget requirements over the years. Missouri also allows extensive local sales taxes, making it one of the states with the highest number of distinct sales tax jurisdictions and some of the most complex local rates.

Kansas City, Missouri has a combined rate of approximately 10.85% — one of the highest major city rates in the Midwest. St. Louis City has a combined rate around 10.45%. These high combined rates reflect multiple layers of local taxation: county taxes, city taxes, and special purpose district taxes. Missouri has approximately 2,000 distinct sales tax jurisdictions.

Missouri taxes groceries at the full sales tax rate — both the state 4.225% and applicable local taxes apply to food purchases. This has been a significant political issue in Missouri, and legislative efforts to reduce or eliminate the grocery tax have been introduced repeatedly. Missouri is one of the few remaining states that fully taxes grocery food.

For businesses, Missouri's local tax landscape is particularly challenging. Many Missouri cities and special districts have their own sales tax rates, and Missouri uses both origin-based and destination-based sourcing rules depending on the transaction type, adding another layer of complexity.

The Missouri Department of Revenue administers the state sales tax. Economic nexus threshold is $100,000 in annual Missouri sales. Missouri has marketplace facilitator laws in effect.