Illinois toll payment methods and what you need to know

Illinois tolls are managed by the Illinois Tollway, a state agency that operates toll roads in the Chicago metropolitan area and surrounding regions. You can pay tolls in three ways: with cash at toll plazas, through an electronic toll collection system called I-PASS, or by mail if you miss a toll. The method you choose affects how much you pay — I-PASS users get discounts on most tolls, while cash payers and those who miss tolls pay higher rates.

If you drive Illinois toll roads regularly, I-PASS is the most practical option because it's faster, cheaper, and you don't handle cash. If you use tolls occasionally or pass through once, you can pay cash at toll plazas. If you don't pay at the time of travel, the Tollway will bill you by mail, but the cost will be higher and you may face additional fees if payment is late.

Key Takeaways

  • I-PASS is an electronic toll tag that you mount on your windshield and provides discounts on most Illinois tolls; you can open an account online or at a customer service center.
  • Cash payment at toll plazas is accepted on most Illinois Tollway roads, but costs more per toll than I-PASS rates.
  • If you don't pay at the toll plaza, the Tollway will send you a bill by mail, and unpaid tolls accrue additional fees and can affect your vehicle registration renewal.
  • I-PASS accounts require a prepaid balance that you can refill online, by phone, or at a customer service center.
  • Unpaid tolls can prevent you from renewing your vehicle registration in Illinois until the debt is settled.

Opening and using an I-PASS account

To open an I-PASS account, visit the Illinois Tollway website (illinoistollway.com) or visit a customer service center in person. You'll need a valid driver's license or state ID, a vehicle registration document, and a payment method (credit card, debit card, or bank account). The account setup takes about 10 minutes online. You'll choose a prepaid balance to load onto your account — most people start with $25 to $100 depending on how often they use tolls.

Once your account is open, the Tollway mails you an I-PASS transponder (the small electronic tag). When it arrives, you mount it on your windshield following the included instructions. The transponder communicates with toll readers as you pass through, and the toll is deducted from your prepaid balance. You can refill your balance online, by phone at 1-800-824-7277, or at a customer service center. Most accounts are set to auto-replenish, meaning the Tollway automatically charges your payment method when your balance drops below a certain level.

I-PASS discounts vary by road and time of day. On most Illinois Tollway roads, I-PASS rates are roughly 30 to 50 percent lower than cash rates. Some roads offer additional discounts during off-peak hours. You can see current toll rates for your route on the Tollway website before you travel.

Paying cash at toll plazas

Most Illinois Tollway toll plazas accept cash in the form of bills and coins. Look for the "Cash" lane at the toll plaza — these are typically marked with signs. Hand your cash to the toll attendant or, at some newer plazas, use a self-service machine. The attendant will tell you the toll amount, and you pay on the spot. Keep your receipt in case you need proof of payment later.

Cash tolls cost more than I-PASS rates on the same roads. For example, a toll that costs $1.50 with I-PASS might cost $2.50 or more if you pay cash. If you drive tolls frequently, the I-PASS discount will save you money over time, even after accounting for the account setup.

Some newer toll plazas have replaced cash lanes with all-electronic collection, meaning there is no cash option at those locations. Before you travel, check the Tollway website to confirm whether your route has cash payment available.

What happens if you don't pay a toll

If you pass through a toll plaza without paying, the Tollway uses license plate readers to identify your vehicle. Within a few weeks, you'll receive a bill by mail. This bill includes the original toll amount plus a processing fee (typically $5 to $10). You can pay this bill by mail, online, or by phone.

If you don't pay the bill within the time stated on the notice, the Tollway may send a second notice with an additional late fee. If the debt remains unpaid, it can be reported to the Illinois Secretary of State's office, which may prevent you from renewing your vehicle registration. This is one of the most common reasons people discover unpaid tolls — they try to renew their registration and are told they have an outstanding toll debt.

If you believe you were billed in error — for example, you paid cash but were still billed, or you have a duplicate charge — contact the Tollway customer service at 1-800-824-7277 with your bill number and the date of travel. They can review the transaction and adjust your account if needed.

Resolving unpaid tolls before registration renewal

The Illinois Secretary of State's office will not renew your vehicle registration if you have unpaid tolls on record with the Tollway. Before you attempt to renew your registration, check whether you have any outstanding toll debt. You can do this by calling the Tollway at 1-800-824-7277 or visiting their website and entering your license plate number.

If you find unpaid tolls, pay them when ready through the Tollway's website, by phone, or by mail. Once payment is processed, the Tollway updates the Secretary of State's records, usually within one to two business days. After that, you can proceed with your vehicle registration renewal without delay.

If you have multiple unpaid tolls or a large balance, the Tollway may offer a payment plan. Call customer service to discuss your options. Having a plan in place is better than letting the debt grow, because each unpaid toll adds another processing fee.

I-PASS for out-of-state drivers and temporary use

If you live outside Illinois but drive toll roads in the state regularly, you can open an I-PASS account with an out-of-state address. The process is the same as for Illinois residents — you'll need a valid driver's license, vehicle registration, and a payment method. The transponder will be mailed to your out-of-state address.

If you only pass through Illinois tolls occasionally, you don't need an I-PASS account. You can pay cash at toll plazas or expect a bill by mail. However, if you pass through tolls more than a few times per year, the I-PASS discount will likely save you money compared to cash or mail-bill rates.

Some neighboring states have their own toll systems that are compatible with I-PASS, including Indiana's I-PASS system. If you travel between states frequently, check whether your I-PASS transponder works on roads outside Illinois.

Frequently Asked Questions

Can I use I-PASS on all Illinois toll roads?

I-PASS works on all Illinois Tollway roads, which include the Jane Addams Memorial Tollway, the Tri-State Tollway, the Chicago Skyway, and others. Some local toll roads in Illinois are not part of the Tollway system and may not accept I-PASS. Check the Tollway website or call 1-800-824-7277 to confirm whether a specific road accepts I-PASS.

What if my I-PASS transponder stops working?

If your transponder is damaged, lost, or not reading tolls correctly, contact the Tollway customer service. They can send you a replacement transponder at no charge. In the meantime, you can pay tolls with cash or expect a bill by mail. Keep your account active so tolls are linked to your account when the new transponder arrives.

Can I transfer my I-PASS account to a different vehicle?

Yes. Log into your I-PASS account online or call customer service to update your vehicle registration information. You can keep the same transponder and account balance. If you own multiple vehicles, you can add them to one account and use the same transponder by moving it between vehicles, or request additional transponders for each vehicle.

Do I get a refund if I close my I-PASS account?

Yes. If you close your account, any remaining prepaid balance will be refunded to the payment method on file. The refund typically takes five to seven business days. Contact the Tollway to close your account and confirm your refund status.

What if I'm billed for a toll I paid with cash?

This can happen if the cash payment was not recorded at the toll plaza. Contact the Tollway with your bill number and the date and time you paid cash. Provide any receipt you have from the toll attendant. The Tollway will investigate and remove the charge if they confirm the cash payment was made.