Illinois toll payment happens through I-PASS, a prepaid account system that lets you pay tolls electronically instead of stopping at a booth

The Illinois Tollway operates most toll roads in the state and requires payment either through I-PASS (an electronic transponder mounted on your windshield) or through video tolling, which photographs your license plate and sends you a bill. I-PASS is the faster and cheaper option — you get a discount on every toll you pay. If you don't have I-PASS, the Tollway will still charge you, but at a higher rate, and you'll receive an invoice by mail.

To pay tolls online, you set up an I-PASS account on the Illinois Tollway website, add a payment method, and fund your account. The transponder in your vehicle then deducts tolls automatically as you drive. You can also manage an existing I-PASS account online — checking your balance, adding funds, updating your payment method, and viewing your toll history.

Key Takeaways

  • I-PASS is a prepaid account with a windshield transponder that charges tolls automatically and costs less per toll than paying by mail.
  • You create an I-PASS account on the Illinois Tollway website, choose a payment method, and order a transponder that arrives by mail.
  • Once your transponder is installed, tolls are deducted from your account balance each time you drive through a toll plaza.
  • You can manage your account online anytime — add funds, check your balance, update payment information, and see your toll history.
  • If you don't set up I-PASS, the Tollway photographs your license plate and bills you at a higher rate by mail.

Setting up a new I-PASS account online

Go to the Illinois Tollway website (illinoistollway.com) and select "Open an Account" or "I-PASS." You'll enter your name, address, phone number, and email. You'll also provide your vehicle information — the license plate number, vehicle type, and state of registration. If you have more than one vehicle, you can add multiple plates to the same account.

Next, choose your payment method. The Tollway accepts credit cards, debit cards, and bank accounts. You'll also set up an initial funding amount — this is the money that will be deducted as you drive. Most accounts start with a minimum balance; the exact amount varies. After you submit your information, the Tollway will mail you a transponder, which typically arrives within 7 to 10 business days.

When your transponder arrives, follow the installation instructions to mount it on your windshield. It needs a clear view of the toll plaza sensors to work properly. Once it's installed and your account is funded, you can drive through any toll plaza on the Illinois Tollway system without stopping.

Adding funds to your I-PASS account

Log into your I-PASS account on the Illinois Tollway website using your email and password. Select "Add Funds" or "Manage Account." Choose your payment method — credit card, debit card, or bank account — and enter the amount you want to add. The Tollway does not charge a fee for adding funds online.

You can set up automatic replenishment, which adds funds to your account when your balance drops below a certain threshold. This prevents your account from running empty while you're driving. You choose the replenishment amount and the balance level that triggers it. Automatic replenishment uses the payment method you have on file.

If you're unsure how much to add, check your toll history in your account to see how much you typically spend per month. You can also call the Illinois Tollway customer service line at 1-800-UC-IPASS (1-800-824-7277) to discuss your account.

Checking your balance and toll history online

Log into your I-PASS account to see your current balance at the top of your dashboard. This shows you how much money is available to pay tolls. Below that, you can view your recent toll transactions — the date, time, location, and amount of each toll you've paid.

Your toll history is useful for tracking your spending and catching errors. If you see a toll you don't recognize or believe you were charged incorrectly, you can dispute it through your account or by calling customer service. The Tollway investigates disputes and can refund charges if they find an error.

Updating your payment method and account information

If your credit card expires, is lost, or you want to switch to a different card or bank account, log into your account and select "Payment Method" or "Billing Information." You can update your card number, expiration date, or bank account details. Changes take effect when ready for future replenishments.

You can also update your name, address, phone number, or email through your account settings. If you move to a new state or change your vehicle's license plate, update that information as well so the Tollway can match your transponder to the correct vehicle.

What happens if your account runs out of money

If your balance reaches zero while you're driving, your transponder will not work at the toll plaza. The Tollway's system will photograph your license plate and send you an invoice by mail at a higher rate than I-PASS users pay. You'll be charged for that single toll plus a processing fee.

To avoid this, set up automatic replenishment or check your balance regularly before long drives. If you receive an invoice for a toll you drove through with an empty account, you can add funds to your I-PASS account and the Tollway may credit the difference between the I-PASS rate and the rate you were billed.

Paying tolls if you don't have I-PASS

If you drive through a toll plaza without an I-PASS transponder, the Tollway photographs your license plate and mails you an invoice. You can pay this invoice online through the Illinois Tollway website by entering your invoice number and the amount due. You'll need a credit card or debit card to pay.

Paying by invoice is more expensive than I-PASS — you'll pay a higher per-toll rate plus a processing fee. If you drive the Illinois Tollway regularly, opening an I-PASS account saves money over time. If you only drive tolls occasionally, you can pay invoices as they arrive, but an I-PASS account is still the cheaper option.

Frequently Asked Questions

How long does it take to get a transponder after I open an account?

The Illinois Tollway mails transponders within 1 to 2 business days of account creation, and delivery typically takes 7 to 10 business days. You can drive tolls before your transponder arrives if you want, but you'll be billed by invoice at the higher rate. Once your transponder arrives and is installed, future tolls will be deducted from your I-PASS account at the lower rate.

Can I use I-PASS in other states?

I-PASS works on the Illinois Tollway system only. Other states have their own toll systems — Indiana has the Indiana Toll Road, Ohio has E-ZPass, and so on. Some of these systems are compatible with each other through reciprocal agreements, but you'll need to check with each state's tollway authority to confirm.

What if I sell my car or get a new license plate?

Log into your I-PASS account and update your license plate number in the vehicle information section. If you're selling your car, remove that plate from your account. If you're keeping the transponder for a new vehicle, update the plate number so tolls are charged to the correct vehicle.

Can I get a refund if I have money left in my I-PASS account?

Yes. Contact the Illinois Tollway customer service at 1-800-UC-IPASS (1-800-824-7277) or submit a request through your online account. The Tollway will refund your remaining balance to the payment method you have on file, though the process may take several weeks.

What if I don't receive my transponder in the mail?

If your transponder doesn't arrive within 10 business days, log into your account and request a replacement or call customer service at 1-800-UC-IPASS. The Tollway will mail a new one at no charge. In the meantime, you can still drive tolls and will receive invoices by mail.