Chicago tollway payments go through the Illinois Tollway system, and you can pay by mail, online, or through automatic withdrawal

The Illinois Tollway operates the toll roads around Chicago, including the Tri-State Tollway, the Chicago Skyway, and the Jane Addams Memorial Tollway. When you drive through a toll plaza without a transponder or with an unpaid toll, the system photographs your license plate and sends you an invoice. You can pay that invoice through several methods, each with different timelines and setup steps.

If you drive the tollways regularly, you can also open an I-PASS account — a prepaid transponder system that charges your account as you drive rather than sending invoices later. This is faster at toll plazas and usually costs less per toll than paying invoices after the fact.

Key Takeaways

  • Toll invoices arrive by mail and give you a important date to pay; paying online or by phone is faster than mailing a check.
  • I-PASS is a prepaid account with a transponder mounted on your windshield that deducts tolls automatically as you drive.
  • You can set up I-PASS online at ipass.illinois.gov or by phone, and you can add money to your account anytime before it runs low.
  • If you receive a toll invoice you believe is wrong, you can dispute it through the Illinois Tollway customer service line.

Paying a toll invoice after you drive through

When you pass through a toll plaza without paying, a camera reads your license plate. The Illinois Tollway mails an invoice to the address on your vehicle registration within about two weeks. The invoice includes the toll amount, a processing fee (usually $2 to $5 depending on the toll), and a due date — typically 14 to 30 days from when you receive it.

You have three ways to pay the invoice. The fastest is online at illinoistollway.com: enter your invoice number and license plate, then pay by debit card or credit card. You can also call the Illinois Tollway customer service line at 1-800-UC-IPASS (1-800-824-7277) and pay over the phone with a card. If you prefer to mail a check, include the invoice number and mail it to the address printed on your bill; allow extra time for postal delivery and processing.

Paying the invoice closes that single toll charge. If you drive the tollways often, you will receive multiple invoices over time. Setting up I-PASS instead prevents invoices altogether.

Opening and funding an I-PASS account

An I-PASS account is a prepaid system: you load money into your account, mount a transponder (a small electronic device) on your windshield, and the system deducts the toll amount each time you pass through a plaza. The toll cost is usually lower than the invoice fee — for example, a toll that costs $2.50 at a manned plaza might cost $1.50 with I-PASS.

To open an account, go to ipass.illinois.gov and click "Open an Account." You will need your vehicle's license plate number, vehicle type (car, truck, motorcycle), and a valid payment method — debit card, credit card, or bank account. You also choose an initial funding amount, usually between $25 and $200. The transponder ships to your address within 5 to 7 business days. Once it arrives, you mount it on your windshield (the kit includes instructions and adhesive strips), and your account is active.

You can also open an account by phone at 1-800-UC-IPASS. A representative will take the same information and can sometimes expedite shipping if you need the transponder quickly.

Adding money to your I-PASS account

Your I-PASS account has a balance that decreases each time you use a toll road. You can check your balance anytime at ipass.illinois.gov by logging in with your account number and password. Most accounts are set to auto-replenish: when your balance drops below a threshold you choose (often $10), the system automatically charges your payment method and adds a set amount (often $25 or $50).

If you prefer to add money manually, log into your account and choose "Add Funds," then enter the amount and confirm the charge. You can also call 1-800-UC-IPASS to add funds over the phone. Manual additions usually post within 24 hours on business days.

What to do if you receive a toll invoice you think is wrong

Occasionally a toll invoice arrives for a toll you believe you already paid, or for a toll you did not drive through. Call the Illinois Tollway customer service line at 1-800-UC-IPASS with your invoice number and license plate number. A representative can look up the transaction and tell you whether the toll was recorded correctly.

If the toll was charged in error — for example, if your plate was misread or if you have proof you paid at the time — the representative can file a dispute. You will need to provide details about when and where you drove, and sometimes a photo of your receipt if you paid at a manned plaza. The dispute process typically takes 4 to 6 weeks. In the meantime, you can still pay the invoice to avoid late fees; if the dispute is upheld, the Illinois Tollway will refund the charge.

I-PASS for rental cars and vehicles you do not own

If you are renting a car or driving someone else's vehicle, you cannot open a permanent I-PASS account in that vehicle's name. Instead, you have two options. Some rental car companies offer temporary I-PASS transponders for the rental period; ask at the rental counter. Alternatively, you can pay toll invoices as they arrive by mail or online using the method described above.

If you rent frequently, opening your own I-PASS account and bringing your personal transponder is the most economical choice. You mount it in whichever vehicle you are driving, and tolls charge to your account regardless of which car you are in.

Understanding I-PASS fees and costs

I-PASS itself is free to open and maintain. The only cost is the toll amount charged each time you drive through a plaza. The toll rate varies by location and time of day — some tolls are lower during off-peak hours. You can see the toll amount for a specific route before you drive by using the toll calculator at ipass.illinois.gov.

If your I-PASS account balance runs too low and you drive through a toll plaza, the system will still charge the toll and your account will go negative. You will receive a notice asking you to add funds. If you do not add funds within the important date, the Illinois Tollway may suspend your account or send the debt to a collection agency. To avoid this, enable auto-replenish or check your balance regularly.

Frequently Asked Questions

How long do I have to pay a toll invoice?

The invoice will state a due date, usually 14 to 30 days from the date you receive it. Paying by the due date avoids late fees. If you miss the important date, you may owe additional penalties, but you can still pay the original toll amount and late fees together.

Can I use I-PASS in other states?

I-PASS works on most toll roads in Illinois, Indiana, and Ohio. If you travel to other states with toll roads, check whether they accept I-PASS or require a separate transponder. Some states have reciprocal agreements, but it is best to confirm before you travel.

What happens if I lose my I-PASS transponder?

Call 1-800-UC-IPASS to report it lost. The representative can deactivate the old transponder and ship you a replacement, usually within 5 to 7 business days. There is typically a replacement fee of $10 to $15. Your account balance transfers to the new transponder.

Can I get a refund if I move out of Illinois?

Yes. Contact the Illinois Tollway customer service line and request to close your account. Any remaining balance in your account will be refunded to your original payment method within 2 to 4 weeks. You should also remove your transponder from your windshield to prevent accidental charges.

Do I need I-PASS to drive the Chicago Skyway?

No. You can pay a toll invoice by mail or online after driving the Skyway without a transponder, just as you would on other Illinois tollways. However, I-PASS users pay a lower per-toll rate on the Skyway as well, so it is worth opening an account if you use it regularly.