Knox City, Missouri sales tax rate: 6.725%
Last updated Checked monthly
The sales tax rate in Knox City, Missouri is 6.725%. That’s the 4.225% state rate plus 2.5% in local taxes. It’s higher than 135 of the 228 Missouri cities we checked, and 11 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Knox City combined rate
6.725%
- Missouri state
- 4.225%
- Knox CountyCounty
- 2.5%
Knox City sales tax calculator
Enter a price and what you’re selling.
- MissouriState · 4.225%$4.23
- Knox CountyCounty · 2.5%$2.50
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoKnox City sales tax rate breakdown
State and county taxes add up to 6.725%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Missouri | State | 4.225% |
| Knox County | County | 2.5% |
| Combined rate | 6.725% |
Rate history
- July 20236.725%
- July 20246.725%
- July 20256.725%
- July 20266.225%
- Today6.725%
Changed since July 2023.
Charge the right rate in Knox City, 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.
Knox City 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 Knox City, Missouri?
The combined sales tax rate in Knox City is 6.725% as of November 2, 2026. It’s made up of 4.225% Missouri state tax, 2.5% Knox County.
Does the sales tax rate vary within Knox City?
Knox City has no special-district taxes, so most addresses in the city pay the same 6.725%: Missouri’s 4.225% plus 2.5% county tax. This rate was calculated for Knox City’s 63446 ZIP code; the calculator prices any exact address.
Is SaaS taxable in Knox City?
No.
Do online sellers have to collect sales tax in Knox City?
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 Knox City’s 63446 ZIP code. Rates are checked monthly and are for information, not tax advice.
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