The sales tax rate in Lee’s Summit, MO is either 8.475% or 8.600%, depending on which side of the county line the store sits on. The city straddles Jackson County and Cass County, and that boundary creates a split: purchases in the Jackson County portion are taxed at 8.475%, while the Cass County portion comes in slightly higher at 8.600%.1City of Lee’s Summit. Sales Tax Both figures bundle state, county, city, and (on the Jackson side) a small regional district tax into the single charge you see at the register.
The merchant’s physical address controls which rate applies, not where you live. On a $1,000 purchase, the gap works out to $84.75 in the Jackson County section versus $86.00 in the Cass County section.
What Makes Up the Rate
Four layers of government stack to produce the combined total.
State of Missouri: 4.225%
Every retail transaction in Missouri starts with a 4.225% state sales tax, and that figure is the same everywhere in the state regardless of city or county.2Missouri Department of Revenue. Sales/Use Tax
County: 1.375% in Jackson, 1.625% in Cass
Jackson County adds 1.375% on top of the state rate; Cass County adds 1.625%.1City of Lee’s Summit. Sales Tax The higher Cass County rate is the main reason the Cass side ends up with the higher combined total, even though both sides share the same state and city rates.
City of Lee’s Summit: 2.750%
The city collects 2.750% uniformly across both county portions.1City of Lee’s Summit. Sales Tax
Regional District: 0.125% in Jackson County Only
An additional 0.125% applies only within the Jackson County portion, attributed to the Kansas City Zoological District.3Missouri Department of Revenue. Sales and Use Tax Rate Tables The Cass County side has no equivalent district levy, which is why Cass County’s higher county rate doesn’t produce an even larger gap in the final totals.
Where the City’s 2.750% Goes
Every piece of the city’s share is earmarked by voter approval. The city can’t shuffle money between buckets.
- General Fund: 1.000%
- Capital Projects: 0.500%
- Transportation: 0.500%
- Public Safety: 0.500%
- Local Parks: 0.250%1City of Lee’s Summit. Sales Tax
When You’ll See a Higher Rate
The 8.475% and 8.600% figures are the base rates. Certain shopping centers and commercial developments sit inside special taxing districts that add extra sales tax on top. Lee’s Summit uses two types.
Community Improvement Districts collect revenue to pay for public facilities, improvements, or services within their boundaries. Transportation Development Districts serve a similar function but focus on road, bridge, and interchange projects, typically financed through bonds repaid over up to 40 years.4City of Lee’s Summit. Special Taxing Districts Each can impose sales tax in increments of one-eighth of a percent, up to 1%.5Missouri Department of Transportation. Transportation Development Districts (TDDs) Where a CID and a TDD overlap at the same center, the combined surcharge can reach as high as 2%, so the rate at some Lee’s Summit retail locations can exceed 10%. The extra charge is confined to the physical footprint of the district; step across the street and the rate drops back to the base.
Groceries and Prescriptions
Grocery purchases are taxed at a lower rate than general merchandise, but they aren’t tax-free. A 1997 Missouri law removed the 3% general revenue portion of the state sales tax from food items eligible for purchase with SNAP benefits, leaving 1.225% at the state level.2Missouri Department of Revenue. Sales/Use Tax All county and city taxes still apply to groceries at their full rates. The effective grocery rate in Lee’s Summit comes out to roughly 5.48% in the Jackson County portion and 5.60% in the Cass County portion.
Prescription drugs are completely exempt from Missouri sales tax.
When Sales Tax Drops Off Entirely
Missouri runs two annual sales tax holidays where state and local taxes are both suspended on qualifying purchases, and Lee’s Summit participates in both.
Back-to-School Holiday
August 7–9, 2026. The exemption covers clothing priced at $100 or less per item, school supplies at $50 or less per item, graphing calculators at $150 or less, computers and peripherals at $1,500 or less, and computer software at $350 or less. Items purchased for business use don’t qualify. Retailers whose qualifying merchandise makes up less than 2% of sales aren’t required to remove the tax at the register, though they must refund it on request.
Show-Me Green Holiday
April 19–25, 2026. The holiday exempts the first $1,500 of the purchase price on Energy Star certified appliances.6Missouri Department of Revenue. Show-Me Green Sales Tax Holiday Information for Consumers
Use Tax on Online and Out-of-State Purchases
Most major online retailers now collect Missouri sales tax at checkout. When a seller doesn’t, you owe what Missouri calls “use tax” on the purchase. The rate matches your local sales tax rate. Lee’s Summit’s city use tax rate is 2.75%, and state and county use taxes layer on top, bringing the total in line with what you’d pay at a local store.7City of Lee’s Summit. Use Tax
You’re required to file a consumer’s use tax return once your cumulative untaxed purchases exceed $2,000 in a calendar year. That threshold isn’t an exemption. Once you cross it, you owe tax on all qualifying purchases for the year, not just the amount above $2,000. The return is due April 15 of the following year, and the rate is determined by where the goods were first delivered.8Missouri Department of Revenue. Individual Consumer’s Use Tax
Checking the Exact Rate for an Address
Because the county line runs through the city and special districts can push the rate higher at specific storefronts, looking up a particular street address is the only way to be sure of the rate. The Missouri Department of Revenue runs an address lookup at MyTax Missouri that returns the combined rate broken out by jurisdiction. Worth checking before a large purchase, when the difference between a base-rate location and one inside a CID or TDD is real money.