Illinois toll payment works through I-PASS or pay-per-use, depending on which roads you use and how often

Illinois has two toll systems: I-PASS, a prepaid electronic account that works statewide, and pay-per-use, where you pay cash or by mail at toll plazas. Most drivers on the Illinois Tollway (the main toll roads around Chicago and across northern Illinois) use I-PASS because it costs less per crossing. If you drive tolled roads only occasionally, you can pay at the booth or receive an invoice by mail. The Illinois Tollway is operated by the Illinois Tollway Authority, a state agency separate from the Secretary of State's vehicle registration office.

Your choice depends on how often you use toll roads. I-PASS requires setting up an account and loading money into it, but each toll crossing costs less than paying at the booth. Pay-per-use means no account setup but higher per-crossing costs and the risk of late fees if you miss a mailed invoice.

Key Takeaways

  • I-PASS is a prepaid account that reduces toll costs by roughly 30 to 50 percent compared to paying at the booth, depending on the road.
  • You can open an I-PASS account online at illinoistollway.com, by phone at 1-800-UC-IPASS, or at a customer service center, and it takes about 10 minutes.
  • Pay-per-use drivers receive invoices by mail if they don't pay at the toll booth, and late payment can result in additional fees and vehicle registration holds.
  • I-PASS transponders work on toll roads in Illinois, Indiana, Ohio, and other states in the E-ZPass network, so one account covers multiple states.
  • If you receive a toll violation notice, you can dispute it or pay online through the Illinois Tollway website within the important date shown on the notice.

Opening and funding an I-PASS account

To open an I-PASS account, visit illinoistollway.com, call 1-800-UC-IPASS (1-800-824-4727), or visit a customer service center in person. Online is fastest: you provide your name, address, email, phone number, and vehicle information (license plate and vehicle identification number). You then choose a prepaid balance—most drivers start with $25 to $100—and provide a payment method (debit card, credit card, or bank account). The account activates within minutes, and the Illinois Tollway mails you a transponder (a small electronic device) within 5 to 7 business days.

Once your transponder arrives, mount it on your windshield according to the included instructions. The transponder communicates with toll readers as you pass through, and the cost is deducted from your prepaid balance. When your balance drops below a threshold you set (usually $10), the account automatically recharges using your stored payment method. You can adjust your auto-recharge settings or manually add funds anytime through your online account.

If you have multiple vehicles, you can add additional transponders to the same account. Each transponder is linked to a specific license plate, so the system knows which vehicle is passing through.

Pay-per-use: paying at the booth or by mail

If you don't have an I-PASS, you can pay cash at toll booths on most Illinois Tollway roads. Booth attendants accept bills and coins. However, many toll plazas now have all-electronic lanes with no booth attendant—these lanes require either an I-PASS transponder or a valid payment method on file. If you drive through an all-electronic lane without I-PASS, the Illinois Tollway photographs your license plate and mails you an invoice.

Invoices typically arrive within 2 to 3 weeks. The invoice shows the toll amount plus a video toll processing fee (usually $1 to $2 per crossing, depending on the road). You can pay the invoice online at illinoistollway.com, by phone, by mail, or in person at a customer service center. Payment is due within 14 days of the invoice date.

If you don't pay by the important date, the Illinois Tollway sends a second notice with a late fee added. If you still don't pay, the account can be referred to a collection agency, and unpaid tolls can result in a hold on your vehicle registration renewal through the Secretary of State's office.

Toll costs and I-PASS discounts

Toll amounts vary by road and distance traveled. On the Illinois Tollway's main routes (the Tri-State Tollway, Chicago Skyway, and others), a typical short crossing might cost $1.50 to $3.00 with I-PASS and $2.50 to $5.00 without. Longer trips cost more. The exact rate depends on which toll road you use and whether you're traveling during peak or off-peak hours on some roads.

I-PASS discounts range from about 30 to 50 percent off the pay-per-use rate, depending on the specific road. For example, if you cross the same toll plaza 20 times a month, the savings add up quickly. The Illinois Tollway publishes a toll rate table on its website showing the exact cost for each crossing with and without I-PASS.

Commercial vehicles and trucks have separate toll rates, which are higher than passenger vehicle rates. If you drive a commercial vehicle, contact the Illinois Tollway directly for information on commercial accounts.

Disputing a toll violation or incorrect charge

If you receive a toll violation notice or believe a charge is wrong, you have options. The notice will include a important date (usually 30 days) and instructions for disputing it online or by mail. You can dispute the charge, request a hearing, or pay the amount due through the Illinois Tollway website.

Common reasons for disputes include: the transponder malfunctioned, you were not the driver, the toll was charged twice, or the amount is incorrect. When you dispute, explain what happened and provide any supporting evidence (photos, receipts, or witness information). The Illinois Tollway reviews your dispute and either dismisses the charge, upholds it, or offers a hearing before an administrative judge.

If you miss the important date on a violation notice, you can still contact the Illinois Tollway to request a hearing or payment plan, but additional fees may explore.

I-PASS works across state lines in the E-ZPass network

Illinois I-PASS is part of the E-ZPass network, which includes toll roads in Indiana, Ohio, Pennsylvania, New Jersey, New York, Connecticut, Delaware, Maryland, Virginia, and West Virginia. Your single I-PASS account and transponder work on all these roads without any additional setup. Tolls are charged to your Illinois account at the same discounted rate you receive in Illinois.

If you travel frequently to neighboring states, this is a major advantage over pay-per-use. You won't receive separate invoices for out-of-state tolls; they all appear on your Illinois I-PASS statement.

Frequently Asked Questions

What happens if I don't pay a toll invoice?

The Illinois Tollway sends a second notice with a late fee added (usually $25 to $50 depending on the violation). If you still don't pay, the account goes to a collection agency. Unpaid tolls can trigger a hold on your vehicle registration renewal, preventing you from renewing through the Secretary of State until the debt is resolved.

Can I get a refund if I overpay my I-PASS account?

Yes. If your account balance is positive when you close it or if you believe you were overcharged, contact the Illinois Tollway at 1-800-UC-IPASS. They can issue a refund to your original payment method, though it may take several weeks to process.

Do I need I-PASS if I only drive Illinois roads occasionally?

Not necessarily. If you cross tolls fewer than 10 times a year, pay-per-use may be simpler since you avoid the account setup. However, if you cross the same toll plaza more than a few times, I-PASS savings usually outweigh the setup time. Use the Illinois Tollway's toll calculator on its website to compare costs for your specific trips.

What if my I-PASS transponder stops working?

Contact the Illinois Tollway at 1-800-UC-IPASS or through your online account to report a malfunction. They can send you a replacement transponder at no charge. Until it arrives, you can pay at toll booths or request a temporary exemption while the replacement is in transit.

Can I transfer my I-PASS account if I sell my vehicle?

Yes. You can update your vehicle information in your online account or call the Illinois Tollway to change the license plate associated with your transponder. The account itself stays active; only the vehicle registration changes.