Quick Highlights on Illinois Sales Tax
| Detail | Value |
|---|---|
| State Sales Tax Rate Range | 6.25–11% |
| Base State Sales Tax Rate | 6.25% |
| Local Rate Range | 0–4.75% |
| Economic Nexus Sales Threshold | $100,000 |
| Reference Period | Preceding 12 calendar months |
| Registration Deadline | Next transaction after threshold is crossed |
| Revenue Authority | Illinois Department of Revenue |
| Online Filing Portal | MyTax Illinois |
As a business, do I need to collect sales tax in Illinois?
Businesses are required to collect sales tax in Illinois if they have a sales tax nexus in the state. This includes having a physical presence or reaching a specific sales level, which establishes an economic nexus. This is why understanding Illinois state sales tax obligations is crucial for compliance.
Do I have a physical nexus in Illinois?
A physical nexus in the state of Illinois is established if your business has a physical presence in the state, like an office, warehouse, or store. Even temporary physical presence, like participating in trade shows or craft fairs, can create a nexus.
In Illinois, physical nexus is triggered by employees or contractors in any role — including back-office, administrative, and support functions, not just customer-facing roles.
How do I know if I have an economic nexus in Illinois?
An economic nexus in Illinois is determined by your sales volume. If your enterprise meets the threshold, you must register for a Illinois sales tax permit, collect tax on sales shipped to Illinois, and remit that tax to Illinois Department of Revenue.
In Illinois, economic nexus is established if your sales in the state exceed $100,000, based on Preceding 12 calendar months.
Marketplace sales (e.g., Amazon, eBay) are excluded when calculating whether you've exceeded the Illinois economic nexus threshold.
Sales made for resale are excluded from the nexus threshold calculation for Illinois.
Non-taxable sales are included in the nexus threshold calculation for Illinois.
Once you cross the threshold, you must register by Next transaction after threshold is crossed.
Which goods are taxable in Illinois?
In Illinois, sales tax applies to:
- Retail sales of tangible personal property
- Prewritten (canned) computer software, whether delivered physically or electronically
- Qualifying food and drugs (taxed at a reduced 1% rate)
- Vehicle rentals and certain leases
Most services are not taxable in Illinois unless they involve the transfer of tangible personal property.
What items are exempt from sales tax in Illinois?
Illinois exempts the following from sales tax:
- Machinery and equipment used primarily in manufacturing or assembling
- Farm equipment and agricultural chemicals
- Prescription and nonprescription medicines and medical appliances
- Newspapers and magazines
- Sales to government entities and qualifying nonprofits
Food and drugs sold for human consumption are taxed at a reduced rate of 1% rather than being fully exempt.
Is SaaS taxable in Illinois?
SaaS is generally not taxable unless the provider transfers an API, applet, or desktop agent. Note: Chicago imposes its own local taxes on SaaS and cloud products — verify local obligations separately. SaaS is currently not taxable in Illinois. However, sales tax laws change frequently — always verify the latest guidance with your tax advisor.
How can a business get a sales tax permit in Illinois?
To obtain a sales tax permit in Illinois, businesses need to register with the Illinois Department of Revenue. Registration can be completed online through the MyTax Illinois.
You will need to provide detailed information about your business, including business type, ownership details, and the nature of your business activities.
When should a business file sales tax in Illinois?
Sales tax returns in Illinois are generally due on the 20th day of the following month for the previous period. Based on your annual tax liability, you may qualify for a less frequent filing schedule:
- Quarterly filing: Available if your annual tax liability is below $12,000 (returns due 20th day of the month following the end of the quarter)
- Annual filing: Available if your annual tax liability is below $1,200 (returns due January 20th of the following year)
Note: Effective Jan 2026, Illinois eliminated the 200-transaction nexus threshold. Only the $100,000 gross receipts threshold applies. As of Jan 2025, out-of-state sellers must collect combined state and local tax at the destination rate.
You can file your Illinois sales tax return through the MyTax Illinois at https://mytax.illinois.gov/.
Does Illinois offer a timely filing discount?
Yes, Illinois offers a timely filing benefit for businesses that file and pay on time:
Illinois provides a vendor's discount for timely filing and payment:
- 1.75% of the tax due, capped at $1,000 per month
The discount applies automatically when the return is filed and paid by the due date. The $1,000 monthly cap applies to all sales tax returns filed on or after January 1, 2025.
What are the penalties for late filing in Illinois?
Illinois imposes the following penalties for non-compliance:
- Late filing penalty: The lesser of $250 or 2% of the tax due
- Continued non-filing: If not filed within 30 days of a notice, an additional penalty of $250 or 2% (whichever is greater) per 30-day period, up to $5,000
- Late payment penalty: 15% of the unpaid tax if not paid within 30 days of a notice
- Interest: Accrues on unpaid tax from the due date at the statutory rate
Penalties may be abated for reasonable cause.
Is shipping taxable in Illinois?
In Illinois, the taxability of shipping and handling depends on how the charge is presented. Generally: • Taxable: If the shipping charges are mandatory or included in the price of a taxable item. • Non-Taxable: If shipping is separately stated on the invoice and provided as an optional service to the customer. Note: If you ship a mix of taxable and non-taxable goods in Illinois, the shipping charge must usually be prorated to determine the taxable portion. Confirm current rules with Illinois Department of Revenue at https://tax.illinois.gov/.
Does Illinois have a Remote Seller program?
Illinois requires remote sellers who exceed the economic nexus threshold to register, collect, and remit sales tax using standard state rates.