Missouri Sales Tax Rates: 2026 County Guide
Complete sales tax breakdown for all 109 counties in Missouri. Select a county to see city-level rates and How-To guides.
Missouri Base State Tax Rate
| Jurisdiction | Rate |
|---|---|
| Missouri State Sales Tax | 4.200% |
| Total Combined Rate | 8.400% |
Missouri Sales Tax Rules, Local Rates and Nexus Notes
Data-rich guideFor businesses operating in or selling into Missouri, the base statewide tax rate forms the starting point for all retail tax calculations. Filing requirements and base rates can shift, making regular verification with state authorities essential.
In terms of rate structure, the combined rate of 8.400% consists of a 4.200% state rate. This rate matches the estimated state average combined rate of 8.400% across local jurisdictions.
Serving a population of 6,154,913, Missouri is a key center for trade. High transaction volume increases the probability of audit errors if point-of-sale systems are not strictly updated with current rates. Merchants must double-check boundary lines to ensure they apply the correct rates relative to neighboring tax zones.
Maintaining compliance requires tracking sales across all of Missouri. Remote sellers must calculate their total state transactions to see if they cross economic thresholds. Compliance requires reviewing economic nexus guidelines: Remote sellers meet economic nexus rules in MO if they reach $100,000 in gross sales or 200 separate transactions within a calendar year. State-level guidelines on grocery food or clothing exemptions should also be integrated into your tax strategy. Refer to the state's formal tax publications for binding rules, since this guide serves as an educational resource only.
Rate data last checked in the database: March 2026
Economic Nexus Threshold
Avg Local Tax Rate
State Nexus Checker
Use current state threshold data before you register or start collecting.
Nexus estimate
State Exemption Finder
Guide buyers and sellers toward the right official exemption paperwork path.
State Product Taxability Checker
Version 1 covers the tax categories already modeled in the current database.
State-aware estimate
Verify with official sourceAll 109 Missouri Counties
Adair
Andrew
Atchison
Audrain
Barry
Barton
Bates
Benton
Bollinger
Boone
Buchanan
Caldwell
Callaway
Camden
Cape Girardeau
Carroll
Carter
Cass
Cedar
Chariton
Christian
Clark
Clay
Clinton
Cole
Cooper
Crawford
Dade
Dallas
Daviess
DeKalb
Dent
Douglas
Dunklin
Franklin
Gasconade
Gentry
Greene
Grundy
Harrison
Henry
Hickory
Holt
Howard
Howell
Iron
Jackson
Jasper
Jefferson
Johnson
Knox
Laclede
Lafayette
Lawrence
Lewis
Livingston
Macon
Madison
Maries
Marion
McDonald
Mercer
Miller
Mississippi
Moniteau
Monroe
Montgomery
Morgan
Newton
Nodaway
Oregon
Osage
Ozark
Pemiscot
Perry
Pettis
Phelps
Pike
Platte
Polk
Pulaski
Putnam
Ralls
Randolph
Ray
Reynolds
Ripley
Saline
Schuyler
Scotland
Scott
Shannon
Shelby
St. Charles
St. Francois
St. Louis
Ste. Genevieve
Stoddard
Stone
Sullivan
Taney
Texas
Vernon
Warren
Washington
Wayne
Webster
Worth
Wright
Largest Cities in Missouri
These major city pages usually attract the strongest commercial intent and create more downstream tool usage.
Highest Tax Cities in Missouri
Comparison links like these help users move from broad state intent into more specific local rate pages.
Sales Tax Calculator
Using the current combined rate for Missouri.
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Sitewide Helper
Sales Tax Calculator & Compliance Helper
One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.
Advanced Sales Tax Calculator
Estimate tax with shipping, discounts, and exempt subtotal support.
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Reverse Sales Tax Calculator
Work backward from the total paid to estimate the pre-tax price and tax amount.
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ZIP / City Sales Tax Lookup
Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.
Economic Nexus Checker
Compare your state-specific sales activity against current nexus thresholds using existing site data.
Nexus estimate
Should I Collect Sales Tax?
A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.
Do you sell taxable goods or taxable services?
Do you sell into states outside your home state?
Have you crossed a nexus threshold in a destination state?
Do marketplaces handle most of your sales?
Do you have physical presence in the state?
Decision
Exemption Certificate Finder
Point buyers and sellers toward the right official portal and documentation checklist.
Product Taxability Checker
Version 1 uses the categories already modeled in the current database and always links back to official verification.
State-aware estimate
Verify with official source