Texas tolls can be paid through your vehicle's transponder, online, by phone, or by mail, depending on which toll road you use and whether you have a TxTag account

Texas operates toll roads through several regional authorities, each with its own payment system. The most common is TxTag, which covers Dallas, Houston, San Antonio, and Austin toll roads. You can pay tolls by mounting a small electronic transponder on your windshield, which charges your prepaid account as you drive through toll plazas. If you don't have a transponder, most toll roads photograph your license plate and send you an invoice by mail.

The method you use depends on which toll road you're on and whether you want to set up an account in advance. Some people use transponders for daily commutes and pay invoices for occasional trips. Others prefer to avoid accounts altogether and simply pay when they receive a bill. Understanding your options now prevents confusion and late fees later.

Key Takeaways

  • TxTag is the main transponder system in Texas and works on toll roads in the Dallas, Houston, San Antonio, and Austin areas; you load money into an account and the transponder deducts tolls automatically.
  • If you don't have a transponder, the toll authority photographs your license plate and mails you an invoice, which you must pay within a set timeframe to avoid penalties.
  • You can pay tolls online through the toll authority's website, by phone, or by mail, but setting up a TxTag account in advance usually costs less per trip.
  • Unpaid tolls result in late fees, vehicle registration holds, and potential collection action, so paying invoices promptly is important even if you dispute the charge.
  • Each toll authority has slightly different rules and payment deadlines, so check the specific authority's website for the road you use most often.

Setting up a TxTag account and transponder

A TxTag account requires you to register your vehicle and provide a payment method — usually a credit card or bank account. You then purchase a transponder (the small device that mounts on your windshield) and load money into your account. The transponder reads toll plazas as you pass through and automatically deducts the toll from your balance. When your balance drops below a set amount, the system charges your payment method to refill it.

You can open a TxTag account online at the TxTag website or by phone. The transponder itself costs a small one-time fee, usually around $13 to $15. Once activated, it works on all TxTag toll roads in Texas. If you use tolls regularly, this is the cheapest option because transponder users typically pay a lower per-toll rate than drivers who receive invoices.

If you move or sell your vehicle, you can transfer your transponder to a new vehicle or close your account. Keep your account number handy — you'll need it if you want to check your balance, update your payment method, or dispute a charge.

Paying tolls without a transponder

If you don't have a TxTag transponder, toll plazas photograph your license plate as you pass through. The toll authority matches the plate to your vehicle registration and mails you an invoice. The invoice includes the toll amount, a processing fee, and a deadline for payment — usually 30 days from the invoice date.

You can pay the invoice online using the toll authority's website (you'll need your invoice number), by phone, by mail, or in person at some locations. Online and phone payments are fastest and usually process within one business day. Mail payments take longer and should be sent well before the deadline to avoid late fees.

Paying by invoice costs more per toll than using a transponder because the authority adds a processing fee to cover the cost of photographing, mailing, and processing your payment. If you use tolls only occasionally, this may still be cheaper than buying a transponder and maintaining an account. If you use tolls regularly, a transponder saves money over time.

Which Texas toll roads use which payment systems

TxTag covers most major toll roads in Texas, but not all. The Dallas area uses TxTag for the Dallas North Tollway, President George Bush Turnpike, and other regional roads. Houston uses TxTag for the Hardy Toll Road, Westpark Toll Road, and others. San Antonio and Austin also use TxTag for their toll roads.

Some toll roads operate independently and use their own systems. For example, the Harris County Toll Road Authority (in Houston) uses TxTag but also accepts payment through its own website. The Central Texas Regional Mobility Authority (in Austin) operates some roads under its own system. Always check the specific toll road's website or your invoice to see which authority manages it and what payment methods they accept.

If you travel on multiple toll roads in different regions, you may need to set up accounts with more than one authority. However, TxTag transponders work across all TxTag roads, so one account can cover most of your toll driving in Texas.

What happens if you don't pay a toll invoice

If you don't pay an invoice by the deadline, the toll authority adds a late fee — usually $25 to $50 depending on the authority. If you still don't pay after a second notice, the fee increases and the authority may refer your account to a collection agency. Collection agencies report unpaid tolls to credit bureaus, which can lower your credit score.

More immediately, unpaid tolls can trigger a vehicle registration hold. When your registration comes up for renewal, the state will not renew it until you pay the outstanding tolls and fees. This means you cannot legally drive the vehicle and cannot register it in another state. If you're stopped by police, they can cite you for driving with an expired registration.

Some toll authorities also pursue legal action for large unpaid balances, which can result in a judgment against you and wage garnishment. This is rare for small amounts but more common if you have multiple unpaid invoices over time. Paying promptly, even if you believe the charge is wrong, is the safest approach — you can dispute the charge afterward without the added penalties.

Disputing a toll charge

If you believe you were charged incorrectly — for example, if you passed through a toll plaza but were charged twice, or if the toll amount seems wrong — you can dispute the charge. Contact the toll authority that issued the invoice and explain the issue. Most authorities have a dispute process on their website or by phone.

When you dispute, have your invoice number and the date of travel ready. If you have photos or evidence that you shouldn't have been charged, include that. The authority will investigate and either refund the charge, adjust your account, or explain why the charge was correct. This process usually takes two to four weeks.

While your dispute is being reviewed, continue to pay your other tolls on time. Disputing one charge does not stop late fees from accruing on unpaid invoices. If you're concerned about a pattern of incorrect charges, ask the authority to review your account history.

Managing your TxTag account online

Once you have a TxTag account, you can log in to the TxTag website to check your balance, view your toll history, update your payment method, and set up automatic refills. Most accounts allow you to set a threshold — for example, "refill my account when the balance drops below $10" — so you never run out of money mid-trip.

You can also add multiple vehicles to one account if you own more than one car. Each vehicle gets its own transponder, but they all draw from the same account balance. This is useful if you share toll driving with a family member or if you switch between vehicles.

If your transponder is damaged, lost, or stolen, you can request a replacement through your account. There is usually a small fee for a replacement. If you move out of state or no longer use tolls, you can close your account and request a refund of any remaining balance.

Frequently Asked Questions

Do I have to get a TxTag transponder, or can I just pay invoices?

You can choose either method. Transponders are optional, but they cost less per toll and are more convenient if you use tolls regularly. If you use tolls only a few times a year, paying invoices may be simpler and cheaper overall.

What if I get an invoice for a toll I didn't drive?

Contact the toll authority immediately with your dispute. Provide your invoice number and explain that you were not driving that vehicle on that date. If someone else was driving your car, you may need to provide their information. The authority will investigate and refund the charge if they determine it was incorrect.

Can I pay a toll invoice in person?

Some toll authorities accept in-person payments at their offices, but this is not available everywhere. Check your invoice or the toll authority's website to see if in-person payment is an option. Online and phone payments are faster and available 24/7.

What happens to my TxTag account if I move out of Texas?

You can keep your account open and use your transponder if you return to Texas. If you no longer plan to use Texas tolls, close your account online or by phone and request a refund of your remaining balance. The refund usually takes one to two weeks to process.

Can I transfer my TxTag transponder to someone else?

You can transfer a transponder to a new vehicle you own by updating your account online. You cannot transfer a transponder to another person's vehicle because the account is tied to your name and payment method. That person would need to set up their own TxTag account.