EZ Tag online payment lets you add money to your toll account through the Harris County Toll Road Authority website or mobile app, without visiting a payment location in person.

EZ Tag is the toll payment system for Harris County toll roads in the Houston area. When you drive through a toll plaza, your account is charged automatically. To keep your account active and avoid toll violations, you need to maintain a balance. The online payment method is the fastest way to add funds — the money posts to your account within minutes on weekdays and within a few hours on weekends.

You can pay online using a debit card, credit card, or bank account transfer. You do not need to create a separate account; you pay using your EZ Tag account number, which is printed on your transponder or in your account paperwork.

Key Takeaways

  • Online payments through the Harris County Toll Road Authority website or app post within minutes on weekdays, making it faster than mail or in-person payment.
  • You can pay with a debit card, credit card, or direct bank transfer, and the system accepts one-time payments or automatic recurring payments.
  • Your EZ Tag account number is all you need to make a payment — you do not have to log into a separate portal or create a new account.
  • If you do not know your account number, you can look it up on the Harris County Toll Road Authority website using your license plate number.

Steps to pay online through the Harris County website

Go to the Harris County Toll Road Authority website (hctra.org) and select the payment option from the homepage. You will see a link for "Pay Your Account" or "Make a Payment." Click it and enter your EZ Tag account number. If you do not have your account number handy, you can search by your license plate number instead.

Once you enter your account information, the system will show your current balance and any toll violations or unpaid charges. Review this information to make sure it matches what you expect. Then enter the amount you want to pay — you can pay any amount above the minimum, or set up an automatic payment that triggers when your balance drops below a certain level.

Select your payment method: debit card, credit card, or bank account. Enter the payment details and confirm. The system will show you a confirmation number when ready. Keep this number for your records. The funds will post to your account within minutes during business hours.

Using the EZ Tag mobile app

The Harris County Toll Road Authority offers a mobile app for iOS and Android that lets you pay on the go. read the app from the Apple App Store or Google Play Store, then open it and select "Pay Your Account." Enter your account number or license plate number, just as you would on the website.

The app works the same way as the website: you review your balance, enter a payment amount, choose your payment method, and confirm. Payments made through the app post on the same timeline as website payments — within minutes on weekdays. The app also lets you set up automatic payments and view your payment history.

Setting up automatic payments

If you use the toll roads regularly, automatic payments save you from having to remember to pay manually. On either the website or app, look for the "Automatic Payment" or "Recurring Payment" option after you enter your account number. You will set a threshold balance — for example, "pay $50 when my balance drops below $10" — and choose your payment method.

Once automatic payments are set up, the system will charge your card or bank account whenever your balance hits the threshold you chose. You can change or cancel automatic payments at any time through the same website or app. The Harris County Toll Road Authority will send you a confirmation email each time an automatic payment processes.

Payment methods and fees

The Harris County Toll Road Authority accepts Visa, Mastercard, American Express, and Discover for credit and debit card payments. They also accept direct bank transfers (ACH) from a checking or savings account. There are no convenience fees for online payments — you pay only the toll charges themselves, not an extra processing fee.

Credit card and debit card payments post within minutes on weekdays and a few hours on weekends. Bank account transfers may take one to two business days to appear in your account. If you need the money to post faster, use a card instead of a bank transfer.

What to do if your payment does not post

In rare cases, a payment may fail to process. This usually happens if your card was declined, your bank flagged the transaction as suspicious, or there was a temporary system issue. When you submit a payment, the system shows you a confirmation number when ready — if you see this number, your payment went through, even if you do not see the balance update right away.

If you did not receive a confirmation number, the payment did not process. Try again with the same payment method, or switch to a different card or bank account. If the payment fails a second time, contact the Harris County Toll Road Authority customer service at 1-888-4-HCTRA (1-888-442-8872) or through their website. Have your account number and the time you attempted to pay ready when you call.

Frequently Asked Questions

Can I pay someone else's EZ Tag account online?

No, you can only pay an account using the account number or license plate associated with that account. If you want to add money to someone else's account, they must set up the payment themselves or add you as an authorized user on their account through the Harris County Toll Road Authority.

What happens if my payment fails and I drive through a toll plaza?

If your account balance is zero or negative when you drive through a toll plaza, the toll will be charged as a violation. You will receive a notice in the mail with the toll amount plus a violation fee. You can pay this notice online or by mail, or dispute it if you believe it was charged in error.

Is there a minimum payment amount?

The Harris County Toll Road Authority does not publish a specific minimum, but most online payment systems accept payments as low as $1. If you want to maintain a healthy balance to avoid violations, most drivers keep at least $20 to $50 in their account depending on how often they use the toll roads.

Can I get a refund if I overpay my account?

Yes. If your account balance is positive and you no longer use the toll roads, you can request a refund through the Harris County Toll Road Authority website or by calling customer service. Refunds are typically issued as a check mailed to your address on file, and may take two to four weeks to arrive.