Illinois restaurant tax starts with the state’s full 6.25 percent sales tax on prepared food, and local add-ons in some municipalities push the total above 11 percent at the register. On top of that, restaurant owners file sales tax returns through the state’s online portal, keep detailed records for years, and handle federal tip reporting for their staff. Getting any one piece wrong is expensive.
The 6.25 Percent State Rate on Prepared Food
Illinois imposes its sales tax on tangible goods through the Retailers’ Occupation Tax Act. The general rate is 6.25 percent of gross receipts, and that rate applies to all food prepared for immediate consumption, whether the customer eats on-site or takes it to go.1Illinois General Assembly. 35 ILCS 120/2-10 – Rate of Tax A cup of hot coffee, a made-to-order sandwich, a plated dinner — the preparation itself triggers the full rate. For a dedicated restaurant, virtually everything on the menu hits 6.25 percent at the state level before any local tax is added.
What Counts as Prepared Food
Illinois regulations define this category in detail, and the boundaries aren’t always where you’d expect. The Illinois Administrative Code lists specific examples that fall under the higher 6.25 percent rate:2Legal Information Institute. Illinois Administrative Code tit. 86, Section 130.310 – Food, Soft Drinks and Candy
- Any hot food, meaning anything above room temperature, whether sold in a restaurant, grocery store, concession stand, or by a street vendor.
- Any sandwich, hot or cold, prepared to a customer’s individual order.
- Salad bars, olive bars, sushi bars, and other self-serve setups where customers assemble their own portions.
- Coffee, tea, cappuccino, and similar beverages made by the retailer for individual consumption, hot or cold.
- Any food consumed on the premises where it’s sold.
Pre-made sandwiches sitting in a deli case can qualify for a lower rate, but the moment a worker assembles one to a customer’s specifications, it flips to 6.25 percent. That single distinction trips up more mixed-use food businesses than almost anything else. For an operation that is strictly a restaurant, the simpler rule applies: your menu is prepared food, and it’s all taxed at the full rate.
Local Food and Beverage Taxes
The 6.25 percent state rate is just the floor. Illinois home rule municipalities can impose their own food and beverage taxes on restaurant sales, and many do. These local taxes vary widely, typically adding anywhere from 0.25 percent to around 2 percent, though some areas stack multiple local layers that push the add-on even higher.
In parts of Cook County, the total effective tax rate on a restaurant meal can reach 11 percent once state, county, and municipal layers are combined.3Village of Buffalo Grove, IL. Local Sales Taxes Naperville imposes a 1 percent citywide food and beverage tax, with an additional 0.75 percent downtown for a combined local rate of 1.75 percent on top of state and county sales tax.4The City of Naperville. Food and Beverage Tax
Two restaurants a few miles apart can have noticeably different total tax rates depending on which municipality, county, and special taxing district they fall within. Confirm the exact rates for your specific address, not just your city, since taxing district boundaries don’t always follow city limits. Local rates change periodically. Check with the municipality at least annually.
Soft Drinks, Candy, and Alcohol
Soft drinks and candy are always taxed at the full 6.25 percent state rate. The statute specifically excludes them from any reduced grocery rate.1Illinois General Assembly. 35 ILCS 120/2-10 – Rate of Tax Soft drinks include both carbonated and non-carbonated beverages with natural or artificial sweeteners.
Alcoholic beverages carry an additional layer. Beyond the 6.25 percent sales tax on the retail price, Illinois imposes a separate liquor gallonage tax on manufacturers and distributors.5Illinois Department of Revenue. Excise Tax Rates and Fees Restaurants don’t pay the gallonage tax directly because it’s levied upstream, but it gets baked into the wholesale cost of every bottle. Many municipalities also layer on their own local liquor tax in addition to the general food and beverage tax, making alcoholic drinks one of the most heavily taxed items on any restaurant menu.
One boundary worth noting: Illinois eliminated the statewide 1 percent sales tax on unprepared groceries effective January 1, 2026, and authorized municipalities to replace it with a local grocery tax of up to 1 percent.6Illinois Department of Revenue. FY 2026-11, Municipal and County Grocery Occupation Tax Rate This change does not affect prepared restaurant food, which was never eligible for the reduced grocery rate. It only matters if your restaurant also sells unprepared items like take-and-bake pizzas or bags of whole-bean coffee, in which case you need to verify whether your municipality has adopted the new local tax.
Filing Returns and the Vendors’ Discount
Illinois restaurants report and remit their collected sales tax using Form ST-1, the Sales and Use Tax and E911 Surcharge Return.7Illinois Department of Revenue. ST-1 Instructions The form requires separating sales into categories (general merchandise, groceries, and qualifying food and drugs) because different rates apply to each. Miscategorizing sales is one of the most common filing errors for businesses that sell both prepared food and lower-rate items.
Filing happens through the MyTax Illinois online portal. The state assigns your filing frequency based on your average monthly tax liability. Businesses with more than $200 per month in average liability file monthly, those between $50 and $200 file quarterly, and those under $50 file annually. Most active restaurants land in the monthly category, with returns due by the 20th of the following month.
One detail many owners overlook: Illinois offers a vendors’ discount for filing and paying on time. Retailers who submit their returns and payments by the due date can keep a small percentage of the tax they collected as compensation for the administrative work. The discount is forfeited entirely if the return or payment is late. Timely filing is doubly worth it.
Penalties for Late Filing or Payment
Illinois imposes separate penalties for late filing and late payment, and they stack. A return filed after the due date triggers a 2 percent late filing penalty. Failing to remit the tax owed by the due date triggers an additional 10 percent late payment penalty. Interest accrues on top of both.8Illinois General Assembly. 35 ILCS 120/3
Late payments trigger automated notices from the Department of Revenue, with interest that continues to compound as long as the balance remains outstanding. Resolving any delinquency through MyTax Illinois quickly limits the damage. Missing multiple filing periods can put a restaurant’s retail license at risk.
Records You Need to Keep
Illinois requires retailers to keep complete records documenting their receipts for at least three and a half years after filing the original or amended return.9Illinois Department of Revenue. Pub-113, Keeping Complete and Accurate Records Records must be available for inspection during normal business hours and must be kept in Illinois unless the Department of Revenue has granted written permission to store them elsewhere.
If the Department issues a Notice of Tax Liability or Final Notice of Tax Due, the retention period extends for the specific reporting periods covered by the notice until the liability is fully resolved.9Illinois Department of Revenue. Pub-113, Keeping Complete and Accurate Records If there’s any open dispute, hold onto records well beyond the standard window.
Daily transaction records, register tapes or point-of-sale reports, purchase invoices, and bank deposit records all form the paper trail auditors expect to see. Verify that your point-of-sale system separates sales into the same categories required on Form ST-1: prepared food at 6.25 percent, any reduced-rate items, and exempt sales to organizations with valid tax-exempt numbers. Cleaning this up during an audit is far more expensive than configuring it correctly from the start.
Tip Reporting and Service Charges
Restaurant owners carry federal obligations around employee tips that go beyond state sales tax. Employees who receive tips must report them to their employer by the 10th of the month following the month the tips were received, as long as total tips from that employer exceed $20 in a calendar month.10Internal Revenue Service. Tip Recordkeeping and Reporting Tips received through pools or splitting arrangements count too. Both directly and indirectly tipped employees have reporting obligations.
Automatic gratuities, the mandatory service charges many restaurants add for large parties, are not tips under IRS rules even though customers often assume they are. The IRS treats them as regular wages because the customer doesn’t freely choose the amount.11Internal Revenue Service. Tips Versus Service Charges: How to Report That means auto-gratuities are subject to normal income tax withholding, Social Security, and Medicare, the same treatment as hourly pay. Misclassifying service charges as tips is a common and costly mistake.
Restaurants where tipping is customary must also file Form 8027 annually to report tip income and allocated tips. Operations required to file 10 or more information returns during the year must submit Form 8027 electronically through the IRS’s FIRE system.12Internal Revenue Service. Instructions for Form 8027 Employers report tips alongside regular wages on Form 941, the quarterly federal tax return, with deadlines falling on April 30, July 31, October 31, and January 31.13Internal Revenue Service. Employment Tax Due Dates
The FICA Tip Credit
Restaurant employers who pay FICA taxes on employee tips can claim a federal tax credit under Internal Revenue Code Section 45B. The credit applies to the employer’s share of Social Security and Medicare taxes paid on tips that exceed the federal minimum wage of $7.25 per hour. Only the FICA taxes on tips above that threshold generate a credit.14Internal Revenue Service. FICA Tip Credit for Employers
For a busy restaurant with many tipped employees, this credit can add up to a meaningful reduction in federal tax liability. Claim it by filing IRS Form 8846 with your annual income tax return. Accurate payroll records (individual tip reports, timecards, and payroll summaries) are essential to support the claim. The credit cannot be used to offset the employer’s minimum wage obligation, only the FICA taxes on tips above it.