How to pay tolls in Texas
Texas toll roads are operated by regional authorities, and the way you pay depends on which road you use and whether you have a prepaid account. Most toll roads accept three payment methods: a TxTag transponder (the state's electronic toll collection system), a toll-by-plate system that photographs your license plate and bills you later, or cash at a few remaining toll booths. TxTag is the fastest and cheapest option because it gives you a discount on every transaction. Toll-by-plate costs more per trip but requires no account setup. Cash is available on only a handful of roads and is being phased out.
If you drive Texas toll roads regularly, setting up a TxTag account takes about 15 minutes online and saves you money when ready. If you use tolls occasionally, toll-by-plate happens automatically—you do not need to do anything, and an invoice arrives by mail or email. The key difference is cost: TxTag users pay a lower per-mile rate, while toll-by-plate users pay the full posted rate plus a processing fee.
Key Takeaways
- TxTag is Texas's electronic toll collection system and offers the lowest per-trip cost, with discounts ranging from 25 to 50 percent depending on the road.
- Toll-by-plate automatically photographs your vehicle and sends an invoice by mail or email, with no account needed, but costs more per trip than TxTag.
- You can set up a TxTag account online at TxTag.org or through regional toll authorities, and the transponder arrives by mail in 5 to 10 business days.
- If you receive a toll-by-plate invoice you believe is wrong, you can dispute it through the issuing authority within the timeframe listed on the notice.
- Cash payment is no longer available on most Texas toll roads; check your specific road's website to confirm payment methods before you drive.
TxTag accounts and how they work
TxTag is operated by the Texas Department of Transportation (TxDOT) and regional toll authorities. When you open a TxTag account, you receive a small electronic transponder that mounts on your windshield. As you pass through a toll plaza, the transponder communicates with readers and deducts the toll from your prepaid balance. You can set up an account at TxTag.org or through individual toll authorities like the Harris County Toll Road Authority (HCTRA) in Houston or the North Texas Tollway Authority (NTTA) in Dallas.
To open a TxTag account, you need a valid driver's license or ID, a vehicle registration, and a payment method (credit card, debit card, or bank account). The transponder itself is free, but you must maintain a minimum balance—usually $10 to $40 depending on the authority. When your balance drops below a set threshold, the account automatically charges your payment method. Most accounts allow you to set up email or text alerts so you know when a charge occurs.
The transponder arrives by mail in 5 to 10 business days. Once it arrives, set up it online and mount it on your windshield according to the instructions. You can use the same transponder on any Texas toll road operated by TxDOT or a regional authority, so you do not need separate accounts for different roads.
Toll-by-plate: automatic invoicing without an account
If you drive a toll road without a TxTag transponder, the toll authority photographs your license plate, identifies the vehicle owner through the Texas Department of Motor Vehicles, and mails or emails an invoice. This system is called toll-by-plate and requires no advance setup. You straightforward drive through, and the bill arrives later.
Toll-by-plate invoices typically arrive within 30 days of the toll transaction. The invoice includes the toll amount, a processing fee (usually $2 to $5 per transaction), and instructions for payment. You can pay by mail, online, or by phone using the information on the invoice. Most toll authorities accept credit cards, debit cards, and checks.
The cost difference between TxTag and toll-by-plate is significant. On the same road, a TxTag user might pay $2.50 while a toll-by-plate user pays $4.50 or more for the identical trip. If you use tolls more than a few times per month, a TxTag account pays for itself quickly.
Comparing TxTag costs across Texas toll roads
Toll rates vary by road, time of day, and congestion level. Some roads use dynamic pricing, which means the toll changes based on traffic volume—higher during rush hour, lower during off-peak times. TxTag users always receive a discount compared to toll-by-plate users on the same road at the same time.
| Toll Road / Authority | Region | TxTag Discount | Payment Methods |
|---|---|---|---|
| Harris County Toll Road Authority (HCTRA) | Houston area | 25–35% | TxTag, toll-by-plate, cash (limited) |
| North Texas Tollway Authority (NTTA) | Dallas–Fort Worth area | 30–50% | TxTag, toll-by-plate |
| Central Texas Regional Mobility Authority (CTRMA) | Austin area | 25–40% | TxTag, toll-by-plate |
| San Antonio Toll Facilities | San Antonio area | 20–30% | TxTag, toll-by-plate |
Check the website of your specific toll authority to see current rates for the roads you use. Most authorities post toll calculators where you can enter your starting point and destination to see the exact cost with and without TxTag.
What to do if you receive a toll-by-plate invoice you think is wrong
If you receive a toll-by-plate invoice and believe the charge is incorrect—because you did not drive that road, the amount seems wrong, or you already paid—contact the toll authority that issued the invoice. The notice will list a phone number and website. Most authorities allow you to dispute a charge online or by phone within 30 to 60 days of the invoice date.
When you dispute a charge, have the invoice number and the date of the toll transaction ready. Explain why you believe the charge is wrong. If you have evidence—such as a credit card statement showing you were out of state that day, or a receipt from a TxTag payment—include it. The authority will investigate and either remove the charge, adjust it, or explain why it is correct.
If you do not pay a toll-by-plate invoice within the timeframe specified on the notice, the toll authority may send a second notice with a higher penalty. Unpaid tolls can eventually affect your vehicle registration renewal or result in a collection action. It is better to dispute a charge you think is wrong than to ignore the invoice.
Setting up TxTag for a rental car or borrowed vehicle
If you rent a car or borrow someone else's vehicle and need to use a toll road, you have two options: use toll-by-plate (which happens automatically) or ask the vehicle owner whether they have a TxTag transponder you can use. Most rental car companies do not allow customers to use their TxTag accounts because the transponder is tied to the registered owner's account.
If you use a rental car on a toll road without a TxTag, the rental company's registered owner will receive the toll-by-plate invoice. Many rental companies charge customers an additional processing fee (sometimes $5 to $15 per toll transaction) on top of the toll itself. Check your rental agreement or ask the rental agent about toll policies before you drive.
If you borrow a friend's or family member's vehicle and it has a TxTag transponder, ask the owner's permission before using the toll road. The toll will be deducted from their account, so they should know about it.
Frequently Asked Questions
Can I use the same TxTag transponder in multiple vehicles?
No. Each TxTag transponder is linked to one vehicle registration. If you own multiple vehicles, you need a separate transponder for each one. You can manage all transponders under one account at TxTag.org, but each vehicle must have its own device mounted on the windshield.
What happens if my TxTag transponder is damaged or lost?
Contact your toll authority's customer service to report the problem. They will deactivate the old transponder and mail you a replacement, usually at no charge. Until the new one arrives, your vehicle will be charged toll-by-plate rates if you use a toll road. set up of the replacement transponder typically takes 24 to 48 hours after it arrives.
Do I need a TxTag to drive on Texas toll roads?
No. You can drive any toll road without a TxTag and pay by toll-by-plate instead. However, you will pay a higher per-trip rate and a processing fee. If you use tolls regularly, TxTag saves money. If you use tolls rarely, toll-by-plate is simpler because it requires no account setup.
Can I transfer my TxTag balance to another account?
No. TxTag balances are tied to the account and cannot be transferred. If you close an account, any remaining balance is refunded to the original payment method within 30 to 60 days. If you move or change vehicles, you can update your account information online without losing your balance.
What if I move out of Texas but still have a TxTag account?
You can keep your account open and use it if you return to Texas. If you want to close it, contact your toll authority's customer service. Any remaining balance will be refunded. If you move to another state with toll roads, that state's toll system will use toll-by-plate for your vehicle unless you set up an account with their system.