Florissant, Missouri sales tax rate: 5.475%
Last updated Checked monthly
The sales tax rate in Florissant, Missouri is 5.475%. That’s the 4.225% state rate plus 1.25% in local taxes. It’s higher than 39 of the 228 Missouri cities we checked, and 5 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Florissant combined rate
5.475%
- Missouri state
- 4.225%
- FlorissantCity
- 1.25%
Florissant sales tax calculator
Enter a price and what you’re selling.
- MissouriState · 4.225%$4.23
- Florissant City (St. Louis County)City · 1.25%$1.25
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoFlorissant sales tax rate breakdown
State and city taxes add up to 5.475%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Missouri | State | 4.225% |
| Florissant City (St. Louis County) | City | 1.25% |
| Combined rate | 5.475% |
Rate history
- July 20235.475%
- July 20245.475%
- July 20255.475%
- July 20265.475%
- Today5.475%
No change since July 2023.
Sales tax near Florissant
Closest cities
- Calverton Park3 mi4.725%
- Black Jack3 mi4.725%
- Hazelwood4 mi6.475%
- Pasadena Park6 mi4.725%
- Normandy7 mi5.725%
- Northwoods7 mi5.475%
- Beverly Hills7 mi4.225%
- Hillsdale8 mi4.225%
Elsewhere in St. Louis County
- Hazelwood6.475%
- Webster Groves5.725%
- Creve Coeur5.475%
- Richmond Heights5.975%
- Brentwood6.225%
- Black Jack4.725%
- Shrewsbury5.725%
- Normandy5.725%
- Northwoods5.475%
- Green Park4.225%
- Hillsdale4.225%
- Calverton Park4.725%
Charge the right rate in Florissant, on every order.
Zamp calculates tax at each customer’s address, then files and pays every Missouri return for you, with a sales tax team you can call.
Florissant sales tax questions.
Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.
What is the sales tax rate in Florissant, Missouri?
The combined sales tax rate in Florissant is 5.475% as of November 2, 2026. It’s made up of 4.225% Missouri state tax, 1.25% Florissant City (St. Louis County).
Does the sales tax rate vary within Florissant?
Florissant has no special-district taxes, so most addresses in the city pay the same 5.475%: Missouri’s 4.225% plus 1.25% city tax. This rate was calculated for Florissant’s 63031 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Florissant?
No.
Do online sellers have to collect sales tax in Florissant?
Yes, if they have nexus in Missouri: more than $100,000 in Missouri sales in the previous or current calendar year, or a physical presence in the state. They register with the Missouri Department of Revenue and charge the rate at the buyer’s address.
Sources. Missouri Department of Revenue · Zamp Sales Tax API, for Florissant’s 63031 ZIP code. Rates are checked monthly and are for information, not tax advice.
Sales tax, off your plate.
Zamp registers you, calculates every order at the customer’s address, files every Missouri return and handles notices, with a sales tax team you can call.
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