State Guide

How to Dispute a Toll in Colorado

Navigating violations with ExpressToll / E-470 / License Plate Toll (LPT) can be confusing. Follow this guide to fight your charge.

Generate a Colorado Dispute Letter

Disputing a Toll in Colorado

Colorado tolls on E-470, the Northwest Parkway, and express lanes use ExpressToll transponders, with License Plate Toll bills mailed to drivers without an account.

Valid Reasons to Dispute a Toll in Colorado

• The license plate was misread by the camera system.
• You were not the registered owner of the vehicle on the violation date in Colorado.
• 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 — within the due date on your license plate toll bill. 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.

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 Colorado 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