St Charles, Missouri Sales Tax Calculator (2026)
8.23% total combined rate — includes state and local taxes.
St. Charles’s total sales tax rate is approximately 8.225%, combining the state and local rates.
St Charles Sales Tax Calculator
Enter a purchase amount — we’ll calculate the total with St Charles’s tax rate.
Rate
8.23%
Tax
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Total
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The current combined rate for St Charles is 8.23%.
St Charles Sales Tax Breakdown
- State Rate: 4.23%
- City Rate: 3.00%
- County Rate: 1.00%
- Special Rate: 0.00%
- Total: 8.23%
About St. Charles
St. Charles’s local option taxes help fund schools, roads, and downtown redevelopment projects.