State Guide

How to Dispute a Toll in Illinois

Navigating violations with Illinois Tollway (I-PASS) can be confusing. Follow this guide to fight your charge.

Generate a Illinois Dispute Letter

Disputing a Toll in Illinois

The Illinois Tollway runs the I-PASS system across the Chicago metro. Missed tolls become Toll Violation notices, but the Tollway offers a generous window to resolve them before fines escalate.

Valid Reasons to Dispute a Toll in Illinois

• The license plate was misread by the camera system.
• You were not the registered owner of the vehicle on the violation date in Illinois.
• You had a valid, funded transponder account that should have covered the toll.
• You have proof the toll was already paid.
• The vehicle was sold, stolen, or rented to someone else at the time.
• The toll equipment malfunctioned or charged a duplicate toll.

Step-by-Step Filing Instructions

1. Act before your deadline — 45 days from the notice date. Note the exact response date printed on your notice.
2. Gather your evidence — vehicle registration, transponder statement, bill of sale, or police report.
3. Write a dispute letter stating your plate number, notice number, violation date, and the reason you're disputing.
4. Submit through the agency's official portal, or send by certified mail so you have proof of the submission date.
5. Keep copies of everything and follow up if you don't receive a response within about 30 days.

Illinois Toll Authority Mailing Addresses

• Illinois Tollway (contest a violation) — Illinois Tollway, P.O. Box 5544, Chicago, IL 60680-5544
• Illinois Tollway (invoice payment) — Illinois Tollway, P.O. Box 1412, Downers Grove, IL 60515-1412
• Important: each entry is labeled by purpose (payment, contest/dispute, or violation). Send your dispute to the address shown for disputes, and always confirm against the exact address printed on your own notice, since agencies use different PO boxes for payments versus written disputes.

What to Expect After You File

Once your dispute is submitted, the toll authority reviews your evidence and the original toll image before responding — most decisions in Illinois arrive within 30 to 90 days. Sending your letter by certified mail, or keeping the confirmation number from an online submission, gives you proof that you filed on time if you ever need to escalate.

If your dispute is approved, the charge is dismissed or reduced and any related late fees are typically removed. If it's denied, you usually still have the right to request a hearing or pay the reduced base toll. Either way, responding in writing before the deadline protects you from registration holds and collection activity, which are far harder to undo later.

Frequently Asked Questions