What the Illinois Toll Highway Authority Is and What It Runs

The Illinois Toll Highway Authority (ITHA) is a state agency that owns and operates toll roads across Illinois. It manages the Illinois Tollway system, which includes the Chicago area's major expressways: 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). These roads carry millions of vehicles each year and generate revenue through tolls rather than gas taxes alone.

The Authority is not a private company — it is a public agency created by state law and governed by a board of directors appointed by the governor. Its primary job is to maintain these highways, collect tolls, and manage traffic flow. Understanding how it works matters because if you drive these routes regularly, you will interact with its toll collection system, payment options, and policies.

Key Takeaways

  • The Illinois Toll Highway Authority operates four major expressway systems in and around Chicago, funded by tolls collected from drivers.
  • The I-PASS electronic toll collection system is the main payment method, and drivers who use it pay lower rates than those who pay cash or use license plate billing.
  • Tolls vary by vehicle type and time of day on some routes, with trucks and larger vehicles charged higher rates.
  • The Authority maintains a customer service center where drivers can open accounts, dispute charges, and report problems with toll collection.
  • Drivers who do not pay tolls face violation notices, late fees, and potential vehicle registration holds if the debt grows large enough.

How the I-PASS System Works and What It Costs

The I-PASS is an electronic toll collection tag that mounts on your windshield and automatically deducts tolls from a prepaid account as you drive through toll plazas. When you use I-PASS, you pay a lower toll rate than drivers who pay cash or use license plate billing. The exact rate depends on the road and time of day, but I-PASS users typically save 30 to 50 percent compared to cash rates.

To open an I-PASS account, you can visit the Tollway's website, call their customer service line, or visit a customer service center in person. You will need a valid driver's license, vehicle registration, and a payment method (credit card, debit card, or bank account). The account is linked to your vehicle's license plate, so tolls are charged to your account automatically. You can set up automatic replenishment so your account refills when the balance drops below a certain amount.

If you drive a rental car or borrow someone else's vehicle, you can use a temporary I-PASS or pay with a credit card at toll plazas. Some rental car companies offer I-PASS tags with their vehicles, though they may charge a fee for the service.

Toll Rates, Vehicle Classifications, and Time-of-Day Pricing

The Tollway charges different rates based on what type of vehicle you drive. Passenger cars pay one rate, motorcycles pay less, and trucks or vehicles with more than two axles pay higher rates. Some routes also use congestion pricing, which means tolls are higher during peak traffic hours (typically morning and evening rush) and lower during off-peak times. The Ronald Reagan Memorial Tollway (I-88) uses this system on certain segments.

Exact toll amounts change periodically and vary by route and direction of travel. The Tollway publishes a toll schedule on its website showing rates for each road segment. If you drive the same route regularly, checking the current rates before your first trip helps you budget for tolls. Rates are lower for I-PASS users than for drivers who pay cash or use license plate billing.

Commercial vehicles and trucks must have a valid I-PASS account or pay cash at toll plazas. Some commercial accounts may have access to for volume discounts if the vehicle uses the Tollway frequently.

What Happens If You Do Not Pay a Toll

If you drive through a toll plaza without paying, the Tollway's cameras photograph your license plate and the Authority sends a violation notice to the vehicle's registered owner. The notice includes the toll amount plus a violation fee. If you do not respond or pay within a set timeframe, the Authority can add late fees and interest to the debt.

Unpaid tolls can affect your vehicle registration. If your toll debt reaches a certain threshold (the amount varies), the Tollway can place a hold on your vehicle registration renewal. This means you cannot renew your license plates until the debt is resolved. In some cases, the debt can be referred to a collection agency, which may report it to credit bureaus.

If you receive a violation notice and believe it was issued in error — for example, you paid but the system did not register it — you can dispute it by contacting the Tollway's customer service center. You will need to provide proof of payment or explain the circumstances. The Tollway reviews disputes and can cancel charges if they find the notice was issued incorrectly.

Customer Service and Account Management Options

The Illinois Toll Highway Authority operates a customer service center that handles account questions, payment issues, and disputes. You can reach them by phone, visit their website to manage your account online, or visit a physical customer service location. Online account management lets you check your balance, view transaction history, update payment methods, and adjust automatic replenishment settings.

If you move or change vehicles, you can update your account information online or by calling customer service. If you sell a vehicle, you should remove it from your I-PASS account so tolls are not charged to you after the sale. If you buy a used vehicle that has an I-PASS tag, you can transfer the tag to your account or request a new one.

The Tollway also offers a payment plan option for drivers with large unpaid toll balances. If you cannot pay the full amount at once, you can contact customer service to discuss a plan. This can help you avoid registration holds and collection action.

Toll-Free Routes and Alternatives to the Tollway

Not all highways in the Chicago area are toll roads. Interstate 90 has toll-free segments outside the Tollway's jurisdiction, and many state and county roads do not charge tolls. If you want to avoid tolls entirely, you can use these alternative routes, though they may take longer or require more stops at traffic lights.

Some drivers use toll-free routes during off-peak hours when they are not in a rush, and use the Tollway during rush hour when time matters more. This is a personal choice based on your schedule and budget. The Tollway publishes maps showing which segments are tolled and which are not, so you can plan your route accordingly.

How the Tollway Maintains Roads and Sets Toll Rates

Toll revenue funds road maintenance, repairs, and improvements on the Tollway system. The Authority uses tolls to pay for resurfacing, bridge repairs, snow removal, and emergency response. Unlike highways funded by gas taxes, toll roads are self-supporting — they do not receive general tax dollars, so toll revenue must cover all operating and maintenance costs.

The Tollway's board of directors sets toll rates based on maintenance needs, traffic projections, and debt obligations. Rate increases are announced in advance and typically take effect on a set date. The Authority publishes its budget and rate-setting process publicly, and the board holds meetings where the public can attend and comment on proposed changes.

Frequently Asked Questions

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

Yes. If your account balance is positive and you no longer need the account, you can request a refund by contacting customer service. The Tollway will refund the remaining balance to your original payment method. If you close your account but want to keep the I-PASS tag for future use, you can do that as well — the tag can be reactivated when you open a new account.

What if I use someone else's car and they have an I-PASS?

The toll will be charged to the vehicle owner's I-PASS account, not yours. If you borrow a car frequently, ask the owner to add you as an authorized user on their account, or use a credit card at toll plazas instead. Rental car companies typically handle tolls through their own systems or charge them to your rental agreement.

Do I have to use I-PASS or can I pay another way?

You do not have to use I-PASS. You can pay cash at toll plazas (though some plazas are now cashless and require I-PASS or license plate billing), or you can use license plate billing where the Tollway photographs your plate and sends you an invoice. However, I-PASS rates are significantly lower, so it is the most cost-effective option if you use the Tollway regularly.

What happens if my I-PASS tag stops working?

If your tag is damaged or not reading properly, contact customer service and request a replacement. The Tollway will mail you a new tag at no charge. In the meantime, you can use license plate billing or pay cash at toll plazas. Keep your account active so tolls are still tracked to your vehicle.

Can I dispute a toll charge if I think I was charged twice?

Yes. Review your transaction history online or request a detailed statement from customer service. If you see a duplicate charge, contact the Tollway with the date, time, and location of the transaction. The Authority investigates duplicate charge claims and will refund you if the charge was made in error. Provide as much detail as possible to speed up the review.