Sales Tax in St. Marys, Kansas in 2025

We'll walk you through how the sales tax rate is determined for St. Marys and address some common questions you may have. We'll also cover how to collect, audit, and remit sales tax in St. Marys.

Plus, we’ll share the best solution that will ensure you are always compliant across the entire sales tax lifecycle.

Disclaimer: Our sales tax data is updated on a quarterly basis.

St. Marys Sales Tax Rate 2025

St. Marys is locatedFALSE in Kansas, United States. Its minimum sales tax rate is 8.50%, and its maximum sales tax rate is 9.00%. These rates include local and state sales tax rates.

Here is how the St. Marys sales tax rates breaks down:

Tax Jurisdiction	Min. Rate	Max. Rate
State Tax	6.50%	6.50%
County Tax	1.00%	1.50%
City Tax	1.00%	1.00%
Combined Rate	8.50%	9.00%

County Sales Tax in St. Marys

St. Marys overlaps with 2 counties in Kansas. Below, you can see the county sales tax rates of each one:

County	Sales Tax Rate
Pottawatomie County	1.00%
Wabaunsee County	1.50%

Sales Tax Rates in St. Marys by Zip Codes and Districts

Let’s see the sales tax rates in St. Marys broken down by zip codes and districts:

District	Zip Codes	Combined Sales Tax Rate
POTTAWATOMIE COUNTY|ST. MARYS CITY	66536	8.50%
WABAUNSEE COUNTY|ST. MARYS CITY	66536	9.00%

How Does the St. Marys Sales Tax Compare to the Rest of Kansas?

Here’s how St. Marys’s sales tax rates compare against other cities in Kansas:

• The maximum sales tax rate (9.00%) is 2.50% higher than the lowest rate and 2.60% lower than the highest rate.
• The minimum sales tax rate (8.50%) is 2.00% higher than the lowest rate and 3.10% lower than the highest rate.

To give you a better idea, here’s a comparison of St. Marys sales tax rates with a few other cities in Kansas:

City	Sales Tax Rates
Tyro	6.50%
Elmdale	7.50%
St. Marys	8.50%-9.00%
Coffeyville	11.50%
Ottawa	11.60%

You can also compare the sales tax rate of St. Marys against the Kansas cities closest in population size:

• Columbus's sales tax rate is 9.00%
• Osage City's sales tax rate is 9.50%

What Creates Sales Tax Nexus in St. Marys?

St. Marys shares the same sales tax nexus rules as Kansas. 

Read More: Check out this detailed guide on Sales Tax in Kansas.

You have sales tax nexus in St. Marys if you meet one of the following conditions:

• Physical Nexus: Businesses with an office or warehouse in Kansas. 
• Delivery: Businesses that use company vehicles or contract carriers other than interstate common carriers to deliver products in the state.
• Employees: Businesses that have sales or service representatives in the state.
• Economic Nexus: Out-of-state businesses whose gross sales in Kansas exceed $100,000 in the current or previous year. 

What Products Are Exempt from St. Marys Sales Tax?

St. Marys follows the same sales tax exemption rules as Kansas and doesn't have any unique exemptions of its own. 

The items exempt from sales tax in St. Marys are:

• Aircraft sales, parts, and repair services for aircraft used in interstate or foreign commerce.
• Drugs and pharmaceuticals sold to veterinarians. Medical supplies and durable medical equipment purchased by a nonprofit skilled nursing home. 
• Machinery and equipment for farming.
• Seeds, chemicals, and services purchased to prevent soil erosion on agricultural land.
• Ingredients or component parts, like paper and ink for publishing newspapers are part of a finished product to be sold to the final consumer.

Who Needs a Sales Permit in St. Marys?

A sales permit or seller’s permit is usually granted by the state. 

Any business that has a physical presence and meets economic nexus must apply for a sales permit in St. Marys.

You can register for a sales tax permit online via the Department of Revenue website. You can also register offline by submitting the Business Tax Application. 

How to Collect Sales Tax in St. Marys

Kansas is a destination-based sales tax sourcing state. 

This means that when you make a taxable retail sale to a customer in St. Marys, from outside or within the state, you must apply the sales tax rate based on the buyer’s shipping address.

Learn more about origin-based and destination-based sales tax sourcing here.

How to File and Pay Sales Tax in St. Marys

Here are some ways you can file St. Marys sales tax returns:

• File online: Use the Kansas Department of Revenue Customer Service Center to file single and multiple jurisdiction sales and use tax returns.

• File by mail: You can use Form ST-36 for multiple jurisdiction filers and file and pay through the mail.

• Let Zamp handle your Kansas sales tax filing and remittance so you won’t have to deal with sales tax returns ever again!