The Naperville sales tax rate on general merchandise is roughly 8.00 percent in the DuPage County portion of the city and about 7.75 percent in the Will County portion.1City of Naperville. Taxes and Financial Forms The quarter-point gap comes from a DuPage County sales tax that Will County does not impose. The rate that applies to any purchase is set by the physical location of the store, not by where you live. Groceries, prescription drugs, restaurant meals, and vehicles each follow their own rules on top of that base.
What Makes Up the Rate
Every sales tax figure in Naperville starts with the Illinois state rate of 6.25 percent on general merchandise, imposed under the Retailers’ Occupation Tax Act.2FindLaw. Illinois Statutes Chapter 35 Revenue 120/2-10 Several local layers sit on top of that base.
- Naperville’s home rule sales tax of 0.75 percent applies to general merchandise and prepared food. It does not apply to vehicles, groceries, or healthcare items.1City of Naperville. Taxes and Financial Forms
- The Regional Transportation Authority adds 0.75 percent in both DuPage and Will counties.3Illinois Department of Revenue. Mass Transit District Sales Tax
- DuPage County imposes a 0.25 percent countywide sales tax on general merchandise, which is what pushes the DuPage side of Naperville above the Will side.4DuPage County, IL. Sales Taxes
Older summaries sometimes reference a 0.25 percent DuPage Water Commission sales tax. That levy expired on May 31, 2016, and the Commission has not collected sales tax revenue since.5Illinois Department of Revenue. Informational Bulletin – DuPage Water Commission Sales Tax Expires FY 2016-09 Fractional add-ons from special taxing districts can also change the figure at a particular address.
Groceries After the 2026 Change
Effective January 1, 2026, Illinois eliminated the one-percent state sales tax on groceries. For this purpose, “groceries” means food for human consumption taken home to eat, and excludes alcohol, soft drinks, candy, and prepared meals.6Illinois Department of Revenue. Municipal and County Grocery Occupation Tax Rate Changes The RTA’s 0.75 percent still applies to qualifying food, so grocery purchases in Naperville carry at least that much tax.3Illinois Department of Revenue. Mass Transit District Sales Tax
The same law lets municipalities and counties adopt their own one-percent local grocery tax by ordinance. Check the city’s tax page or the MyTax Illinois rate finder to confirm whether Naperville has added a local grocery levy.
Prescription Drugs and Medical Items
Prescription medications and qualifying medical appliances are taxed by the state at a reduced rate of one percent rather than 6.25 percent.7Illinois Department of Revenue. What Is Significant About Retail Sales of Qualifying Drugs and Medical Appliances The RTA’s 0.75 percent applies on top, which puts the combined rate at about 1.75 percent regardless of which county the pharmacy sits in. Naperville’s home rule tax does not apply to healthcare items.1City of Naperville. Taxes and Financial Forms
Restaurant Meals and the Downtown Surcharge
Prepared food and drinks sold for immediate consumption are subject to Naperville’s Food and Beverage Tax on top of the regular sales tax rate. The citywide food and beverage rate is one percent.8City of Naperville. Food and Beverage Tax
Restaurants and bars inside the downtown boundaries collect an additional 0.75 percent, bringing their food and beverage tax to 1.75 percent.8City of Naperville. Food and Beverage Tax A map of the downtown area is published on the city’s Food and Beverage Tax page. In practice, a restaurant meal purchased in the DuPage portion of the city outside downtown runs about 9.00 percent in total tax (8.00 percent general rate plus 1.00 percent food and beverage), and a downtown meal on the DuPage side reaches roughly 9.75 percent.
Vehicles
Vehicle purchases follow a different formula because Naperville’s home rule tax does not apply to auto sales.1City of Naperville. Taxes and Financial Forms The state’s 6.25 percent still applies, along with the RTA and any county tax. The combined rate on titled vehicles comes to roughly 7.25 percent in the DuPage portion and about 7.00 percent on the Will County side.4DuPage County, IL. Sales Taxes
At a dealership, the rate is based on where the buyer lives and registers the vehicle, not on the dealer’s location. If you live on the Will County side of Naperville but buy from a DuPage dealer, your home address controls.
Buying from a private party triggers a separate process. The state charges a private party vehicle use tax that you pay when you title and register the vehicle, using Form RUT-50.9Illinois Department of Revenue. Private Party Vehicle Use Tax The form is available at Secretary of State offices, currency exchanges, and Illinois Department of Transportation locations, and each copy carries a unique transaction number, so it should not be photocopied before being filled out.10Illinois Department of Revenue. Obtaining Forms RUT-25, RUT-25-LSE, and RUT-50
Hotels and Cannabis
If you’re staying overnight, Naperville collects a 5.50 percent hotel and motel use tax on the room rate, with revenue supporting the Naperville Convention and Visitors’ Bureau and general city services.11City of Naperville. Hotel and Motel Use Tax State and county hotel taxes apply on top of that, so the final tax line on a hotel bill runs well above the city’s share.
Adult-use cannabis sold at retail carries a three percent local Naperville tax, the maximum rate Illinois allows municipalities to impose. Medical cannabis purchased under the state’s Compassionate Use program is exempt from this local tax.12City of Naperville. Ordinance No. 20-034 State cannabis excise taxes and standard sales taxes apply on top of the local rate.
Looking Up the Rate for a Specific Address
Because the city sits across two counties and includes special taxing districts, the rate at one Naperville address can differ slightly from another. The most reliable way to get the precise figure is the MyTax Illinois Tax Rate Finder at mytax.illinois.gov.13Illinois Department of Revenue. Tax Rate Database Enter the store’s street address and the tool returns every tax component along with the combined rate. Business owners setting up point-of-sale systems should run the lookup for each physical location rather than defaulting to a general city-level figure.