Introduction: Why Illinois Businesses Need to Pay Attention
Illinois businesses do not just need to know that sales tax changes are coming—they need to know where, how much, what kind of tax is changing, and what operational steps must happen before the effective date. For retailers and servicepersons doing business in affected jurisdictions, the Illinois Department of Revenue says the new local sales tax rates take effect July 1, 2026, and businesses must update their cash registers, software, and tax collection systems accordingly. The bulletin also makes clear that it is informational guidance and does not replace the underlying statutes, rules, regulations, or court decisions.
For business owners, accountants, bookkeepers, and tax professionals, this is a practical compliance issue, not just a rate notice. If your store, warehouse, marketplace activity, service location, or delivery area falls inside one of the changing jurisdictions, your tax setup needs to be ready before July 1, 2026.
What Changed on July 1, 2026
Effective July 1, 2026, certain Illinois taxing jurisdictions imposed a new local sales tax or changed an existing local sales tax rate on general merchandise sales. The Department groups these local taxes under the bulletin’s “locally imposed sales tax” umbrella. The affected local tax types are: business district sales tax, county public safety tax, home rule municipal sales tax, Metro-East Mass Transit District (MED) sales tax, and non-home rule municipal sales tax.
The most important operational point for businesses is simple: your point-of-sale system, tax software, and any forms software must reflect the correct combined rate beginning July 1, 2026. IDOR specifically tells businesses to update their cash register and software program, and to contact the software vendor if software is used to create forms.
What Sales Are Covered—and What Sales Are Not
The bulletin explains that the local sales tax applies to the same general merchandise reported on Line 4a of Forms ST-1 and ST-2 that is already subject to State sales tax. In other words, if a sale is treated as taxable general merchandise at the State level, the local sales tax may also apply depending on the jurisdiction.
However, the local sales tax does not apply to:
- sales of drugs and medical appliances reported on Line 5a of Forms ST-1 and ST-2; or
- items that must be titled or registered by an Illinois State agency and are reported on dealer-filed transaction returns.
The bulletin also notes that some local jurisdictions may impose and administer taxes that are not collected by IDOR, so businesses should contact the relevant municipal or county clerk’s office if they need to confirm whether other local taxes apply.
How to Report a Sale That Was Taxed Under an Older Rate
If a sale was subject to a sales tax rate different from the current one, IDOR directs businesses to report that sale on Line 8a of Forms ST-1 and ST-2. The bulletin is very clear that Line 8a is reserved for sales subject to a different sales tax rate and may not be used for any other purpose.
That is a critical detail for businesses with delayed billing, backdated transactions, contract work, delivery timing issues, or late-posted sales. If a sale belongs to the prior rate period, it must be reported correctly using the proper line on the return.
How Businesses Can Verify the Correct Combined Rate
To verify the new combined sales tax rate—meaning the State rate plus the local rate—IDOR instructs businesses to use the MyTax Illinois Tax Rate Finder and select the rates for July 2026. This is the official step the Department points businesses to when they need a current rate by address.
The bulletin also says that, for business district sales tax questions, the business address generally determines whether the business district tax applies, and the Tax Rate Finder provides a list of addresses.
Business District Sales Tax: A Special Rule Businesses Cannot Ignore
Business district sales tax is one of the most misunderstood local taxes because it can depend on where your business is located, where the buyer is located, and—especially for remote commerce—how the sale is fulfilled. IDOR says the general rule is that your business address determines whether the business district sales tax applies.
The bulletin also provides detailed rules for remote retailers and marketplace facilitators that meet the $100,000 tax remittance threshold. For remote retailers, business district sales tax applies if the property is shipped or delivered to an address in the business district. For marketplace facilitators, the bulletin distinguishes between sales made on behalf of marketplace sellers, the facilitator’s own sales, sales where the seller is not identified, and sales that are not fulfilled from Illinois inventory. In practical terms, businesses that sell online, through platforms, or across multiple locations should review this section carefully because business district tax can apply in more situations than many owners expect.
Complete Illinois Sales Tax Rate Changes Effective July 1, 2026
The following list captures the combined rate ending June 30, 2026, the rate change, the new combined rate beginning July 1, 2026, and the type of local tax change shown in the bulletin.
1) Home Rule Municipal Sales Tax Changes
- Bannockburn: 7.50% to 8.00% (+0.50), home rule municipal.
- Batavia (DuPage County): 8.00% to 8.50% (+0.50), home rule municipal.
- Batavia (Kane County): 8.00% to 8.50% (+0.50), home rule municipal.
- Glencoe: 9.00% to 10.00% (+1.00), home rule municipal.
- Park Forest (Cook County): 9.00% to 10.00% (+1.00), home rule municipal.
- Park Forest (Will County): 7.00% to 8.00% (+1.00), home rule municipal.
- Schiller Park: 9.75% to 10.50% (+0.75), home rule municipal.
- Wheaton: 8.00% to 8.25% (+0.25), home rule municipal.
- Winnetka: 9.00% to 10.00% (+1.00), home rule municipal.
2) Non-Home Rule Municipal Sales Tax Changes
- Benld: 7.25% to 8.25% (+1.00), non-home rule municipal.
- Bowen: 7.25% to 6.25% (-1.00), non-home rule municipal.
- Bunker Hill: 7.25% to 8.25% (+1.00), non-home rule municipal.
- Colona: 8.50% to 8.75% (+0.25), non-home rule municipal.
- Cornell: 8.25% to 7.25% (-1.00), non-home rule municipal.
- Edgewood: 6.50% to 7.50% (+1.00), non-home rule municipal.
- Fairfield: 7.00% to 8.00% (+1.00), non-home rule municipal.
- Gillespie: 7.25% to 8.25% (+1.00), non-home rule municipal.
- Greenfield: 7.25% to 8.25% (+1.00), non-home rule municipal.
- Kirkland: 6.25% to 7.25% (+1.00), non-home rule municipal.
- Lovington: 6.75% to 7.00% (+0.25), non-home rule municipal.
- Metamora: 8.25% to 9.25% (+1.00), non-home rule municipal.
- Metropolis: 6.25% to 7.25% (+1.00), non-home rule municipal.
- Mokena: 7.50% to 8.00% (+0.50), non-home rule municipal.
- Roanoke: 8.25% to 9.25% (+1.00), non-home rule municipal.
- Tower Lakes: 7.00% to 8.00% (+1.00), non-home rule municipal.
- Western Springs: 9.00% to 10.00% (+1.00), non-home rule municipal.
- White Hall: 7.25% to 8.25% (+1.00), non-home rule municipal.
3) Business District Sales Tax Changes
- Belleville — Parkway North Business District: 9.10% to 8.10% (-1.00), business district.
- Fairfield — Business District: 8.00% to 8.25% (+0.25), business district.
- Maryville — Business District: 7.85% to 8.85% (+1.00), business district.
- Maryville — Route 159/162 Business District: 8.85% to 7.85% (-1.00), business district.
- Peoria — City of Peoria Glen Hallow Business District: 9.00% to 10.00% (+1.00), business district.
- Princeton — Business District No. 1: 8.00% to 8.50% (+0.50), business district.
- Swansea — Triple Lakes Business District: 7.85% to 8.85% (+1.00), business district.
4) County Public Safety Tax Changes
- Franklin County: 8.25% to 7.25% (-1.00), county public safety tax.
- Sangamon County: 7.25% to 7.75% (+0.50), county public safety tax.
5) Metro-East Mass Transit District (MED) Sales Tax Changes
- Edwardsville: 7.35% to 7.60% (+0.25), MED.
- Edwardsville — Park North Business District: 8.35% to 8.60% (+0.25), MED.
- Troy: 7.60% to 7.85% (+0.25), MED.
- Troy — Business Improvement District: 8.60% to 8.85% (+0.25), MED.
Special Notes Every Business Owner Should Read
A few entries in the bulletin have footnotes that matter for implementation. First, the bulletin explains that Pin Oak Township was annexed into the MED effective July 1, 2026 for Edwardsville, Edwardsville Park North Business District, Troy, and Troy Business Improvement District. That is why those locations are shown in the MED category with rate increases of 0.25%.
Second, the Fairfield rate change is a combined effect: the bulletin notes that Fairfield’s 0.75% business district decrease plus a 1.00% non-home rule increase equals a net +0.25% change. Businesses in Fairfield should therefore pay attention to the exact combined rate, not just one component of the local tax.
Third, the bulletin states that Metropolis’s 1.00% non-home rule increase also applies inside the Metropolis Interstate North Business District, resulting in a new rate of 8.25% there. That is a key reminder that a business district rate can be affected by a broader municipal change.
What Businesses Should Do Before July 1, 2026
Based on the bulletin’s requirements, businesses should treat this as a compliance checklist, not a last-minute rate change. The practical steps are: update the cash register and tax software, confirm the correct combined rate in MyTax Illinois for July 2026, verify whether the business address is inside any business district, review whether any deliveries or marketplace transactions are subject to business district tax, and make sure staff know which sales are taxed at the new rate versus an older rate. These are practical inferences from IDOR’s instructions to update systems, check the Tax Rate Finder, and use Line 8a for sales taxed at a different rate.
Businesses should also remember that the bulletin instructs them to contact their software vendor if they use software to create forms. That is especially important for retailers and tax preparers who rely on automated filing systems, POS integrations, or accounting platforms.
A Simple Action Checklist for Illinois Businesses
Here is a practical checklist that business owners can use now:
- Identify every location where your business sells taxable general merchandise.
- Check whether any location is inside a changing home rule, non-home rule, business district, county public safety, or MED jurisdiction.
- Update POS and accounting software before July 1, 2026.
- Use MyTax Illinois Tax Rate Finder and select the July 2026 rates for the correct address.
- Train staff to understand which sales are taxed at the new rate and which older transactions must be reported differently.
- Use Line 8a only when reporting sales taxed at an earlier rate.
- Confirm local rules with the municipal or county clerk if your area has taxes not collected by IDOR.
- Watch for the separate grocery occupation tax bulletin if your business sells groceries or food items subject to those taxes.
Why This Matters for Business Owners
Rate changes like these affect more than tax returns. They influence how businesses price products, configure online checkout, calculate receipts, train employees, and respond to customer questions about why a tax rate changed. Because the bulletin includes both increases and decreases across different jurisdictions, businesses cannot assume a single statewide adjustment will cover them. Each location must be checked individually by address and tax type.
For retailers, restaurants, service providers, wholesalers with retail activity, and marketplace sellers, the safest approach is to verify your exact address-based rate before July 1, 2026 and then test your checkout, invoicing, and reporting systems after the update. That recommendation follows directly from IDOR’s instructions to adjust registers and software and to confirm the combined rate through MyTax Illinois.
Conclusion
The Illinois Department of Revenue’s July 1, 2026 sales tax changes are a clear reminder that tax compliance is an operational issue as much as a legal one. The official guidance covers the affected tax types, the items taxed, the exclusions, reporting rules for earlier sales, business district rules, remote retailer and marketplace facilitator treatment, and a complete jurisdiction-by-jurisdiction rate chart. For business owners, the message is straightforward: check your address, verify your rate, update your systems, and file correctly.
