What is the sales tax rate in Wentzville, Missouri?

The combined sales tax rate in Wentzville, Missouri is 10.400% as of 2026. This includes the Missouri state rate of 4.200% plus local jurisdiction taxes.

How is the Wentzville sales tax calculated?

Multiply your purchase amount by 10.400% (or 0.01040) to get the tax owed. For example, a $100 purchase incurs $10.40 in sales tax.

What is the Missouri state sales tax rate?

The base Missouri state sales tax rate is 4.200%. Local jurisdictions may add additional taxes on top of this rate.

Does Wentzville have a county sales tax?

Wentzville imposes an additional county-level sales tax of 1.700% on top of the state rate.

When was the Wentzville sales tax rate last updated?

The Wentzville sales tax rate was last verified on March 27, 2026. We cross-reference all rates against the official State Department of Revenue data.

Live Data: April 2026

Wentzville, MO Sales Tax Rate 2026

The combined sales tax rate in Wentzville, Missouri is 10.400%.

Combined Rate 10.400%

State4.200% County1.700% City2.500%

Wentzville Sales Tax Breakdown

Jurisdiction	Rate
Missouri State Sales Tax	4.200%
County Sales Tax	1.700%
City / Municipal Tax	2.500%
Special District Tax	2.000%
Total Combined Rate	10.400%

Which County Is Wentzville In?

Wentzville falls within St. Charles, Missouri. St. Charles imposes a 1.700% county-level sales tax in addition to the Missouri state base rate.

Wentzville ZIP Codes

The following ZIP codes are mapped to Wentzville for sales tax purposes. All listed codes apply the 10.400% combined rate.

63385

Nearby Tax Rates

Business Nexus in Missouri

Economic Nexus Threshold

Selling into Missouri from out of state? Once you exceed $100,000 in annual sales or 200 transactions, you must register and collect Missouri sales tax.

FAQ: Wentzville Sales Tax

The combined sales tax rate in Wentzville, Missouri is 10.400% as of 2026.

Multiply your purchase price by 10.400% to find the tax owed. A $500 purchase would include $52.00 in sales tax.

Groceries are generally taxable in Missouri. Check the official Department of Revenue for specific exemptions.

Vehicle purchases in Wentzville are subject to the 10.400% combined rate, though some states apply different rules for vehicle sales. Verify with the Missouri Department of Revenue or DMV.

Register for a sales tax permit through the official Missouri Department of Revenue website. Registration is typically free and required before collecting any sales tax.

Sales Tax Calculator

Using 10.400% rate for Wentzville, MO

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 10.400% combined

Official Tax Authority

Missouri Department of Revenue

Filing Deadline: Monthly returns due the last day of the following month. File via MyTax Missouri.

Visit Official Portal (573) 751-2836