The Austin area has two toll authorities with separate toll billing systems and policies: TxDOT/TxTag and Central Texas Regional Mobility Authority (Mobility Authority).

If you do not have a prepaid TxTag, TollTag, EZ TAG, K-TAG, or PIKEPASS and you drive on Austin-area toll roads, you could receive two separate bills—one from TxTag and one from the Mobility Authority—depending on which roads you drive. You must pay the amount due on both bills.

You will receive a bill in the mail if there is not enough money in your TxTag account to cover the cost of your tolls. The bill will include a statement fee, and tolls will be charged at higher Pay By Mail rates until your TxTag account is replenished. By signing up for AutoPay, your account will be automatically replenished with a credit/debit card or bank account when it drops to a preset low balance amount, so you never have to worry about how much money is in your TxTag account.

You could also receive a Pay By Mail bill if your TxTag was not detected on the toll road and your license plate does not match an existing tag account. Contact the TxTag Customer Service Center so we can correct the issue and update your license plate information.

The Mobility Authority operates, maintains, and collects tolls on 183A, 290 Toll, 71 Toll, MoPac Express Lanes, 45SW, and 183 Toll. Mobility Authority toll statements can be resolved by visiting PayMobilityBill.com or by calling 1-833-762-8655.

TxTag is operated by the Texas Department of Transportation and manages all toll transactions on Loop 1, SH 45 N, SH 45 SE, and SH 130 in the Austin area and TxTag transactions anywhere in the state. TxTag toll bills can be resolved online or by calling 1-888-468-9824.