Missouri Sales Tax Calculator
Calculate Missouri sales tax for any purchase. The Missouri state sales tax rate is 4.225%, plus local taxes that vary by city and county. Enter the purchase price and local rate to find total cost.
How to use this tool
- Enter pre-tax purchase price and local sales tax rate in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your total cost (with tax) and the full breakdown beneath it.
⚠ This tool provides general estimates for education only and is not financial, tax or legal advice. Figures may not reflect your situation — verify with a qualified professional.
Formula
State Tax = Price × 4.225%
Local Tax = Price × Local Rate
Total Cost = Price + State Tax + Local Tax
How it works
Missouri imposes a state sales tax of 4.225% on most retail sales of tangible personal property and certain services. Cities, counties, and special districts levy additional local sales taxes that stack on top of the state rate. Common combined rates range from about 7.225% in rural areas to over 10% in cities like St. Louis. This calculator uses the fixed 4.225% state rate plus a user-supplied local rate; check the Missouri Department of Revenue or your city/county for the exact local rate applicable to your address.
Worked example
$100 purchase in a city with 3.5% local rate
- Pre-tax price = $100; state rate = 4.225%; local rate = 3.5%.
- State tax = $100 × 0.04225 = $4.225 ≈ $4.23.
- Local tax = $100 × 0.035 = $3.50.
- Total tax = $4.23 + $3.50 = $7.73; combined rate = 7.725%.
- Total cost = $100 + $7.73 = $107.73.
Total cost is $107.73, with $7.73 in combined sales tax at a 7.725% effective rate.
Common mistakes to avoid
- Applying only the 4.225% state rate without adding local city and county taxes, which can push total sales tax to 10%+ in some Missouri jurisdictions.
- Using a flat statewide average local rate instead of the actual rate for the specific city and county of the purchase — local rates vary significantly across Missouri municipalities.
- Forgetting that certain categories (groceries, prescription drugs, utilities) may be taxed at a reduced rate or exempt under Missouri law, so the full rate does not apply to all purchases.
Key terms
- What is Missouri's state sales tax rate?
- Missouri's state sales tax rate is 4.225%, composed of a 4% general rate plus 0.225% for dedicated funds (transportation, conservation, and parks/soils).
- What is the highest combined sales tax rate in Missouri?
- Some areas of Missouri have combined rates exceeding 10% when state, city, county, and special district taxes are all added together. The Missouri Department of Revenue maintains a lookup tool for exact rates by address.
- Are groceries taxed in Missouri?
- As of 2025, Missouri taxes most food purchased for home consumption at the full combined rate, though a ballot measure reduced the state portion on groceries. Check the MO DOR for the latest rules on food and food ingredients.
- How do I find my exact local sales tax rate in Missouri?
- Use the Missouri Department of Revenue's Address Tax Rate Lookup tool at dor.mo.gov to find the exact combined rate for any Missouri address.
Frequently asked questions
- What is the total sales tax rate in Kansas City, Missouri?
- Kansas City has a combined sales tax rate of approximately 8.975% as of 2025 (4.225% state + county + city rates). Rates can vary by district even within city limits; always verify the specific address rate.
- Are groceries taxed in Missouri?
- Missouri taxes most grocery food items at 1.225% (the state rate reduced from 4.225% for food, plus applicable local taxes on food). Some prepared foods sold ready to eat are taxed at the full rate.
- How do I find the exact sales tax rate for my Missouri address?
- The Missouri Department of Revenue provides an address lookup tool on its website. You can also use the MO DOR's sales tax rate table by jurisdiction or a third-party tax compliance service for precise point-of-sale rates.