Texas toll roads use three separate payment systems, and which one you use depends on which road you're driving

Texas operates toll roads through three main entities: TxTag (managed by the Texas Department of Transportation), EZTag (Harris County Toll Road Authority in the Houston area), and local toll authorities in other regions. Each system has its own payment method, account setup, and billing structure. You cannot use a TxTag account on EZTag roads or vice versa — the systems do not communicate with each other.

If you drive toll roads regularly in Texas, you will need an account with the system that covers your area. If you drive occasionally or pass through, you can pay by mail after receiving a toll invoice, though this costs more and takes longer. The fastest and cheapest way is to set up a prepaid account before you drive, load money into it, and let the toll reader deduct the charge as you pass through.

Key Takeaways

  • TxTag covers most toll roads in Texas outside Houston; EZTag covers Harris County toll roads; each system requires a separate account and does not accept the other's tag.
  • You can set up a TxTag or EZTag account online in minutes, link a payment method, and receive a physical tag by mail within one to two weeks.
  • If you do not have a tag, toll cameras photograph your license plate and mail you an invoice within 30 days, but the per-toll cost is higher and you pay a processing fee.
  • Both systems allow you to check your balance, view toll history, and set up automatic replenishment so your account never runs empty.
  • If you receive a toll invoice you believe is wrong, you can dispute it through the same account portal where you would pay it.

Setting up a TxTag account for most of Texas

TxTag is the statewide system run by TxDOT and covers toll roads in Dallas, Austin, San Antonio, and other regions. To open an account, go to TxTag.org, click "Open an Account," and provide your name, address, phone number, email, and driver's license number. You will also need a payment method — a debit card, credit card, or bank account. The account itself is free.

After you complete the online form, TxTag will mail you a physical transponder tag within 7 to 14 business days. You mount this tag on your windshield, and toll readers detect it as you pass through. You can add money to your account before the tag arrives and it will be ready to use when it comes. Most people load $25 to $100 depending on how often they drive tolls.

Once your account is active, you can log in anytime to check your balance, view which tolls you have paid, and set up automatic replenishment. Automatic replenishment lets you choose a threshold — for example, "replenish when balance drops below $10" — and the system will charge your payment method automatically. This prevents your account from running empty and triggering a toll invoice.

Setting up an EZTag account for Houston-area toll roads

If you drive toll roads in Harris County (Houston area), you need an EZTag account, not a TxTag account. The two systems do not work together. Go to EZTag.org, select "New Account," and provide your name, address, phone number, email, and driver's license number. Like TxTag, the account is free and you link a payment method during signup.

EZTag will mail you a transponder tag within 7 to 14 business days. The setup and account management process is nearly identical to TxTag — you can check your balance, view history, and set up automatic replenishment through your online account. The main difference is geography: EZTag only works on Harris County toll roads, and TxTag only works on roads outside that region.

Paying tolls without a tag using license plate invoicing

If you drive a toll road without a tag, toll cameras photograph your license plate and the toll authority mails you an invoice. This process is called "license plate invoicing" or "toll by plate." You will receive the invoice within 30 days of driving the toll. The invoice includes the toll amount plus a processing fee — this fee varies but is typically $2 to $5 per toll, making the total cost significantly higher than using a prepaid tag.

You can pay the invoice by mail, phone, or online through the toll authority's website. If you pay online, you will need the invoice number. Payment is due within 30 days of the invoice date. If you do not pay, the toll authority may place a hold on your vehicle registration renewal or report the debt to a collection agency.

License plate invoicing is useful if you rarely drive tolls or are visiting Texas temporarily. But if you drive tolls more than a few times per year, setting up a prepaid account saves money because you avoid the processing fee on every toll.

Checking your balance and viewing your toll history

Both TxTag and EZTag let you log into your account online to see how much money you have left and which tolls you have paid. Log in to TxTag.org or EZTag.org with your username and password, and your dashboard will show your current balance, recent transactions, and account settings.

This is useful if you want to know whether a specific toll charge went through or if you need to add money before a long drive. You can also read a statement of your toll history for a specific date range, which some people need for business expense reports or tax purposes.

Setting up automatic replenishment so you do not run out of money

The easiest way to avoid running out of money mid-drive is to set up automatic replenishment. In your TxTag or EZTag account, go to "Account Settings" or "Payment Options" and select "Auto Replenishment." You choose a minimum balance threshold — for example, $15 — and the system will automatically charge your payment method when your balance drops below that amount.

You also choose how much to add each time — common amounts are $25, $50, or $100. Once you set this up, you do not have to think about it. The system handles replenishment in the background, and you will receive an email confirmation each time a charge goes through.

Disputing a toll charge you believe is incorrect

If you see a toll charge in your account that you believe is wrong — for example, you were charged twice for the same toll, or you were charged for a toll road you did not drive — you can dispute it through your account. Log into TxTag.org or EZTag.org, find the transaction in question, and look for a "Dispute" or "Challenge" button next to it.

Click that button and describe why you believe the charge is incorrect. Include the date, time, and location of the toll if possible. The toll authority will review your dispute and respond within 10 to 15 business days. If they agree the charge was an error, they will refund the amount to your account. If they disagree, they will explain why the charge stands.

If you received a license plate invoice and believe it is wrong, you can dispute it the same way — through the toll authority's website or by calling the phone number on the invoice.

What happens if you do not pay a toll

If your prepaid account runs empty and you drive a toll road, the toll authority will send you a license plate invoice. If you do not pay that invoice within 30 days, the toll authority can place a hold on your vehicle registration renewal. This means you will not be able to renew your registration until you pay the toll debt.

Unpaid tolls can also be reported to a collection agency, which will damage your credit score and may result in collection calls. Some toll authorities also charge late fees or penalties on unpaid invoices. The best way to avoid this is to set up automatic replenishment so your account never runs empty.

Frequently Asked Questions

Can I use the same tag on multiple vehicles?

No. Each TxTag or EZTag transponder is linked to one vehicle. If you own multiple vehicles, you need a separate tag for each one. You can manage all of them through a single online account, but each tag has its own ID number and is registered to a specific vehicle.

What if I move to a different part of Texas?

If you move from a TxTag area to an EZTag area (or vice versa), you will need to open a new account with the other system. Your old account will remain open, but you cannot use a TxTag tag on EZTag roads. You can keep both accounts active if you drive in both regions, but they do not share a balance or payment method.

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

Yes. If you have money left in your TxTag or EZTag account and you no longer need it, you can request a refund through your online account or by calling customer service. Refunds typically take 5 to 10 business days to appear in your bank account or on your credit card.

What if my tag gets damaged or lost?

Contact TxTag or EZTag customer service and request a replacement tag. There is usually a small replacement fee, around $5 to $10. The new tag will be mailed to you within one to two weeks and will be linked to your existing account, so you do not lose your balance or payment history.

Do I need a TxTag if I only drive toll roads once or twice a year?

You do not need one, but it saves money if you do. Without a tag, you pay a processing fee on top of each toll. If you drive tolls only once or twice per year, you might prefer to pay by license plate invoice and avoid the account setup. But if you drive tolls more than four or five times per year, a prepaid account usually costs less overall.