Taxes in Chesterfield
Chesterfield's tax picture is genuinely middle-of-the-pack for St. Louis County: a property-tax rate below the county median, layered onto Missouri's real, current flat 4.0% state income tax.
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Learn moreA property tax rate below the county median
Chesterfield's median effective property tax rate ran 1.21% per Ownwell -- below St. Louis County's own 1.36% median, though somewhat above the Tax Foundation's separately-cited statewide Missouri figure (0.89%).
Missouri's real, flat state income tax
Missouri's flat 4.0% state income tax took effect January 1, 2026 (down from a graduated top rate of 4.7%), with a real, conditional statutory phase-down mechanism toward 3.7% over roughly a decade -- see missouri.js.
Local sales tax layers add up
Missouri's comparatively low 4.225% state sales tax rate is layered with St. Louis County and Chesterfield's own local add-ons -- confirm the current combined rate directly for a specific address.
Key takeaways
- Chesterfield's effective property-tax rate (1.21%) runs below the St. Louis County median of 1.36%.
- Missouri's flat 4.0% state income tax applies statewide, including in Chesterfield.
- Local sales-tax add-ons vary by jurisdiction within St. Louis County -- confirm the current combined rate directly.
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