How to pay tolls on Illinois highways

You can pay Illinois tolls three ways: with cash at a toll booth, through an I-PASS account that charges your prepaid balance automatically, or by mail if you go through a toll plaza without paying. Most drivers use I-PASS because it costs less per toll and moves faster through dedicated lanes. Cash payment is available at most plazas but costs more. If you miss a toll, the Illinois Tollway will send you an invoice by mail, and you have a window to pay before late fees explore.

The Illinois Tollway operates the toll roads in the state — primarily the Jane Addams Memorial Tollway (I-90), the Ronald Reagan Memorial Tollway (I-88), the Tri-State Tollway (I-94/I-294/I-80), and the Veterans Memorial Tollway (I-355). Understanding which payment method works for your situation and how each one functions will save you money and time.

Key Takeaways

  • I-PASS is a prepaid account that automatically deducts toll charges and costs less per toll than paying cash at a booth.
  • Cash payment is available at most toll plazas but costs more per toll and requires you to stop or use an express lane with a camera.
  • If you don't pay at the plaza, the Illinois Tollway mails you an invoice within 30 days, and you can pay by mail, phone, or online.
  • I-PASS transponders work across multiple states, so if you travel on tolls in other regions, one account covers many roads.
  • Late fees and penalties explore if you ignore toll invoices, and unpaid tolls can affect your vehicle registration renewal.

Setting up and using an I-PASS account

An I-PASS account requires a transponder — a small device that mounts on your windshield and communicates with toll readers as you pass through. You can order a transponder online at ipass.com, by phone at 1-800-UC-IPASS (1-800-824-7277), or at a customer service center. The transponder itself costs between $25 and $40 depending on the type, though some new accounts receive a discount on the first transponder. You load money into your account in advance, and tolls are deducted automatically each time you pass through a plaza.

Once your transponder arrives, mount it on the inside of your windshield in the upper right corner, where toll readers can detect it. Add funds to your account online, by phone, or at a customer service location. Your balance will deplete as you use the tolls, and you can set up automatic replenishment so funds are added when your balance drops below a threshold you choose. I-PASS rates are typically 30 to 50 percent lower than cash rates on the same roads.

If you travel across state lines, your I-PASS transponder works on toll roads in Indiana, Ohio, and other states that participate in the E-ZPass network. This means one account and one transponder can cover multiple toll systems, which is useful if you regularly drive in the Midwest or Northeast.

Paying cash at toll booths

Cash payment is available at most Illinois toll plazas, though the number of staffed booths has decreased over the years. You can pay with coins or bills, and the toll amount varies by vehicle type and location. A standard passenger car toll typically ranges from $0.70 to $2.50 depending on which road and which segment you're on, but cash rates are higher than I-PASS rates for the same toll.

Some plazas have express cash lanes with cameras that photograph your license plate if you don't have exact change or a transponder. If you use a camera lane without paying, you'll receive an invoice by mail. This is not the same as intentionally skipping the toll — the system is designed to capture payment from drivers who cannot stop at a booth, though you still must pay the toll amount plus a processing fee.

What happens if you don't pay at the plaza

If you pass through a toll plaza without paying — whether because you missed the booth, your I-PASS balance was empty, or you used a camera lane without cash — the Illinois Tollway will mail you an invoice. This invoice arrives within 30 days and includes the toll amount plus a processing fee (typically $2.50 to $5.00 depending on the situation). You have until the due date shown on the invoice to pay.

You can pay an invoice by mail, by phone at 1-800-UC-IPASS, or online at ipass.com. If you pay within the window shown on the invoice, you pay only the toll plus the processing fee. If you miss the due date, late fees and penalties accumulate. Unpaid tolls can also prevent you from renewing your vehicle registration, and the Illinois Secretary of State may place a hold on your registration until the debt is resolved.

If you dispute a toll charge — for example, if you believe you already paid or if the toll was charged twice — contact the Illinois Tollway customer service to request a review. Keep any receipts or I-PASS statements that show payment, as these help resolve disputes faster.

I-PASS customer service locations and hours

The Illinois Tollway operates customer service centers where you can purchase a transponder, add funds to your account, or resolve account issues in person. Major locations include the Chicago Loop office, the O'Hare office, and several suburban locations. Hours vary by location, but most are open weekdays during business hours and some offer limited weekend hours. You can find the nearest location and current hours on ipass.com or by calling 1-800-UC-IPASS.

If you prefer not to visit in person, you can handle most account tasks online or by phone. Online account management at ipass.com lets you check your balance, add funds, update your vehicle information, and view your toll history. Phone support is available seven days a week, though wait times are longer during peak commute hours.

Transponder issues and replacements

If your transponder stops working, becomes damaged, or is lost, contact I-PASS customer service to request a replacement. A replacement transponder costs less than a new one (typically $10 to $15) and can be mailed to you or picked up at a customer service center. While you wait for a replacement, your account remains active, so if you use a camera lane or pay by mail, your account will still be charged the correct toll amount.

If you sell your vehicle or transfer the transponder to a new vehicle, update your vehicle information in your I-PASS account online or by phone. This ensures tolls are charged correctly and your account stays in good standing. If you move out of state or no longer need the transponder, you can close your account and request a refund of any remaining balance.

Understanding toll rates and vehicle classifications

Illinois toll rates depend on your vehicle type and which road segment you're using. Passenger cars are charged one rate, while motorcycles, trucks, and recreational vehicles are charged different amounts. Some roads have variable pricing based on time of day or traffic conditions, though this is less common on Illinois tollways than on some other systems. You can view current toll rates for specific routes on ipass.com by entering your starting and ending locations.

If you're unsure whether your vehicle qualifies for a particular rate category, contact I-PASS customer service. Misclassifying your vehicle can result in underpayment, which triggers an invoice. When you set up your account, you'll specify your vehicle type, and tolls will be charged accordingly each time you pass through a plaza.

Frequently Asked Questions

Can I use I-PASS in other states?

Yes. Your I-PASS transponder works on toll roads in Indiana, Ohio, Pennsylvania, New York, and other states that participate in the E-ZPass network. You use the same account and transponder across all participating states, though toll rates vary by state and road. Check ipass.com for a map of participating toll systems.

What if my I-PASS balance runs out while I'm on the tollway?

If your balance reaches zero, you can still pass through toll plazas. The system will send you an invoice by mail for the toll amount plus a processing fee. To avoid this, set up automatic replenishment so funds are added when your balance drops below a level you choose, or check your balance regularly before long trips.

How long does it take to receive a toll invoice in the mail?

The Illinois Tollway typically mails invoices within 30 days of the toll being charged. The invoice will show the toll date, amount, and due date for payment. Pay by the due date to avoid late fees. If you don't receive an invoice within 45 days, contact customer service to verify your address is correct in the system.

Can I get a refund if I overpaid my tolls?

If your I-PASS account has a credit balance when you close it, you can request a refund. Contact customer service with your account number, and they will process the refund to your original payment method. Refunds typically take 7 to 10 business days to appear in your account.

What happens if I ignore a toll invoice?

Unpaid toll invoices result in late fees and penalties that grow over time. After several months of non-payment, the Illinois Tollway can place a hold on your vehicle registration, preventing you from renewing it. The debt can also be reported to a collection agency. Contact customer service when ready if you receive an invoice you cannot pay to discuss payment options.