How Do I Know If I Owe a Toll in Texas: Lookup, Fees, and Blocks

To find out if you owe a toll in Texas, go to the website of the toll authority that operates the road you drove on, enter your license plate number and state, and search for outstanding charges. Because Texas splits toll-road management among several independent agencies, a balance with one will not show up in another’s system, so you may need to check more than one. Ignoring what you find can pull you into administrative fees, a block on your vehicle registration, and in some cases a misdemeanor charge.

Which Agency to Check First

Texas has no single statewide toll account or lookup. Each region’s authority runs its own billing system:

The Harris County Toll Road Authority (HCTRA) operates the Houston-area toll network and, as of late 2024, also handles billing and customer service for TxDOT-owned toll roads in both the Houston and Austin regions. TxTag accounts in good standing were migrated into HCTRA’s EZ TAG system.¹
The North Texas Tollway Authority (NTTA) runs the Dallas North Tollway, President George Bush Turnpike, Sam Rayburn Tollway, Chisholm Trail Parkway, and other roads and bridges around Dallas-Fort Worth.²
The Central Texas Regional Mobility Authority operates specific Austin-area corridors, including the 183 Toll and 45SW Toll.
Smaller county agencies, including the Fort Bend County Toll Road Authority and Brazoria County Toll Road Authority, manage individual toll roads near Houston.

If you drove in Houston or Austin and are not sure which agency to check, start with HCTRA. If you drove in Dallas-Fort Worth, start with NTTA. TxDOT still owns and sets rates on its toll roads, but HCTRA now handles the actual billing and customer contact.³ If your old TxTag account was not migrated, you also need a new EZ TAG to keep getting the lowest rates going forward.¹

How to Run the Lookup

Each portal is a little different, but the inputs are essentially the same. HCTRA’s site has a violations or “pay a toll” page where you enter your plate number and state and, if you have one, an invoice number from a mailed notice. Toll amounts typically post within 7 to 10 business days after your trip, and out-of-state plates can take up to 30 days.⁴ Former TxTag customers manage their accounts here now rather than at TxTag.org.¹

NTTA’s “Pay Your Bill” or “Pay ZipCash Bill” portal shows both unbilled transactions and outstanding invoices once you enter your plate number and state.⁵ The Central Texas Regional Mobility Authority’s site has a toll bill lookup as well; Pay-By-Mail customers have 30 days to pay, and each bill includes a $1.00 processing fee on top of the toll.⁶

Enter your plate as a continuous string with no spaces or dashes. Some portals also ask for the zip code on your vehicle registration, an invoice number, or, if you have one, an account number.⁷

A blank result is not always the end of the story. Your trip may not have posted yet, or you may be searching the wrong agency. If you know you drove a toll road and nothing appears, wait at least 10 business days and search again, or call the agency’s customer service line with your plate number and approximate travel dates so a representative can pull records manually.

Why You May Not Have Seen a Bill

When you drive through a gantry without a transponder, cameras photograph your plate and the toll authority mails an invoice to the address on file with the Texas Department of Motor Vehicles. Invoices generally arrive within about 30 days and include the base toll plus a processing fee, which is why Pay-By-Mail rates run higher than transponder rates.⁶

If you moved and never updated your address with the DMV, those invoices went to the old one. The tolls do not disappear because you never saw the bill. Updating your DMV address prevents most of the “I had no idea” situations.

Temporary paper plates can complicate the picture. Cameras usually read them, but glare, tinting, and print quality can cause misreads that delay a bill or send it into manual review. If you drove on toll roads after buying a vehicle and before permanent plates arrived, watch for mailed invoices and check the portal again once your permanent registration is on file. Rental cars are handled differently: rental companies bill tolls through their own third-party processors, so those charges show up on the card used for the rental, often four to six weeks later.

Fees If You Ignore the Invoice

Unpaid tolls do not just wait quietly. For TxDOT-owned roads, the department can add an administrative fee of up to $6 per unpaid toll after the due date, capped at $48 within any 12-month period.⁸ Other authorities set their own fee schedules within the limits of state law, so the exact amounts vary.

The real jump happens on the second invoice. Failing to pay within 30 days of a second invoice is a misdemeanor punishable by a fine of up to $250. You can only be convicted once per 12-month period, but the court also collects your unpaid tolls and administrative fees on top of the fine and court costs.⁸

Habitual Violator Status, Registration Blocks, and Vehicle Bans

Under Texas law, if you accumulate 100 or more unpaid toll transactions within a single year and ignore at least two written notices, the toll authority can declare you a habitual violator.⁹ The consequences stack.

The authority reports the determination to the Texas DMV, which blocks your vehicle registration renewal. Your renewal notice may carry a “SCOFFLAW” remark, and you cannot register the vehicle until all outstanding tolls and administrative fees are paid.¹⁰

The authority can also ban your vehicle from its roads. NTTA, for example, issues formal vehicle bans. Driving on an NTTA toll road in violation of a ban is a Class C misdemeanor with a fine of up to $500, and a second violation can lead to the vehicle being impounded. To retrieve an impounded vehicle, you have to pay towing and storage plus either settle your full toll balance or agree to a payment plan.¹¹

You have 30 days after receiving a habitual-violator notice to request a hearing. Miss that window and the determination becomes final and unappealable.⁹

Disputing a Charge You Don’t Owe

Not every bill is right. Plate readers occasionally misread characters, and you can be billed for a vehicle you no longer own. The common grounds for a successful dispute are that you sold or transferred the vehicle before the toll was incurred, your plates were stolen, or the vehicle was leased or rented to someone else at the time.¹²

If you sold the vehicle, you generally need a copy of the Vehicle Transfer Notification (form VTR-346) filed with the DMV and a DMV acknowledgment letter removing you from liability.¹³ Send the invoice number, plate, date in question, and supporting documents. Most agencies accept disputes by email, fax, or mail, and should acknowledge yours in writing within five days.¹² File early. The sooner you contact the agency, the cleaner the resolution.

Payment Plans for Large Balances

If unpaid tolls and fees have grown past what you can pay at once, Texas law allows toll authorities to offer written payment plans that spell out the total owed, the length of the plan, and the amount of each payment.¹⁴ Agencies are not required to offer one, but most will work with you if you reach out before enforcement kicks in. A plan can also be part of lifting a vehicle ban or getting an impounded vehicle released.¹¹

Ignore the Scam Texts

Texas has seen a surge in fraudulent texts claiming a past-due TxTag balance and pointing to a payment link. These are phishing scams. TxDOT has confirmed that TxTag does not send text messages about balances due or final payment reminders. If you get one, do not click the link. Type the toll authority’s address into your browser and check your balance directly, and report the message to the Federal Trade Commission or the FBI’s Internet Crime Complaint Center at ic3.gov.¹⁵

1
TxDOT. Paying Tolls – Toll Roads and Managed Lanes
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NTTA. Roads and Projects
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TxDOT. How Tags Work
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Harris County Toll Road Authority. Pay a Toll Violation
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NTTA. Pay Your Bill
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Central Texas Regional Mobility Authority. Toll FAQs
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NTTA. Get a TollTag
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State of Texas. Texas Transportation Code 228.0547 – Payment of Toll Invoice
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State of Texas. Texas Transportation Code 372.106 – Habitual Violator
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State of Texas. Texas Transportation Code 372.111 – Denial of Motor Vehicle Registration
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NTTA. Vehicle Ban Frequently Asked Questions
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Central Texas Regional Mobility Authority. Dispute a Toll – Exceptions for Paying a Toll
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Central Texas Regional Mobility Authority. Toll Bill Dispute Form
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State of Texas. Texas Transportation Code 372.103 – Toll Violation Payment Plan
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TxDOT. TxDOT Warning Drivers of Spike in Texting Scams Targeting TxTag Customers