Rock Port, Missouri sales tax rate: 8.725%
Last updated Checked monthly
The sales tax rate in Rock Port, Missouri is 8.725%. That’s the 4.225% state rate plus 4.5% in local taxes. It’s higher than 212 of the 228 Missouri cities we checked, and 4 other cities pay the same.
Calculated by the 
Sales Tax APIThe same engine Zamp customers use.Rock Port combined rate
8.725%
- Missouri state
- 4.225%
- Atchison CountyCounty
- 2.25%
- Rock PortCity
- 2.25%
Rock Port sales tax calculator
Enter a price and what you’re selling.
- MissouriState · 4.225%$4.23
- Atchison CountyCounty · 2.25%$2.25
- Rock Port City (Atchison County)City · 2.25%$2.25
Charging this at checkout? Zamp calculates it on every order and files the returns.
Book a demoRock Port sales tax rate breakdown
State, county and city taxes add up to 8.725%.
| Jurisdiction | Type | Rate |
|---|---|---|
| State of Missouri | State | 4.225% |
| Atchison County | County | 2.25% |
| Rock Port City (Atchison County) | City | 2.25% |
| Combined rate | 8.725% |
Rate history
- July 20238.725%
- July 20248.725%
- July 20258.725%
- July 20268.725%
- Today8.725%
No change since July 2023.
Charge the right rate in Rock Port, 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.
Rock Port 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 Rock Port, Missouri?
The combined sales tax rate in Rock Port is 8.725% as of November 2, 2026. It’s made up of 4.225% Missouri state tax, 2.25% Atchison County, 2.25% Rock Port City (Atchison County).
Does the sales tax rate vary within Rock Port?
Rock Port has no special-district taxes, so most addresses in the city pay the same 8.725%: Missouri’s 4.225% plus 2.25% county tax plus 2.25% city tax. This rate was calculated for the centre of Rock Port; the calculator prices any exact address.
Is SaaS taxable in Rock Port?
No.
Do online sellers have to collect sales tax in Rock Port?
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 the centre of Rock Port. Rates are checked monthly and are for information, not tax advice.
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