Pay your TXU bill online, by phone, or through the mail

TXU Energy customers can pay their bill through several channels, each taking a different amount of time and requiring different information. The fastest method is online through your TXU account, which processes when ready. Phone payment takes about five minutes and goes through the same day. Mail payment takes seven to ten business days to reach TXU and post to your account.

TXU accepts payment from a checking account, savings account, or debit card through any method. Credit cards are not accepted. If you pay by phone or online, TXU charges no fee. If you set up automatic payments from your bank account, there is no fee from TXU, though your bank may charge one depending on your account type.

You will need your TXU account number to pay, which appears on your bill or in your online account. If you are paying someone else's bill, you will need their account number instead.

Key Takeaways

  • Online payment through your TXU account is the fastest method and posts to your account when ready after submission.
  • Phone payment through TXU's automated system or a representative takes five minutes and processes the same day.
  • Mail payment takes seven to ten business days, so send it early if your due date is approaching.
  • TXU charges no fee for online or phone payment, but automatic bank payments may carry a fee from your bank.
  • You need your TXU account number to pay, which you can find on your bill or by logging into your online account.

Paying online through your TXU account

Log into your account at mytxu.com using your username and password. If you do not have an online account, you can create one by entering your account number and the zip code associated with your service address. Once logged in, look for "Pay My Bill" or "Make a Payment" — the exact wording varies depending on which TXU product you have (TXU Energy, TXU Electric, or TXU Gas).

Enter the amount you want to pay. You can pay the full balance, the minimum due, or any amount in between. Select your payment method: checking account, savings account, or debit card. Enter the routing number and account number for a bank account, or the card number and expiration date for a debit card. Review the payment details and submit.

Your payment posts when ready and you will see a confirmation number on screen. TXU sends a confirmation email to the address on file. The payment reduces your balance right away, though it may take one to two business days to appear in your bank account as a debit.

Paying by phone

Call TXU's automated payment line at 1-866-839-8898. You will need your account number and your payment method ready. The system will ask you to enter your account number using your phone keypad, then guide you through selecting a payment amount and entering your bank account or debit card information.

If you prefer to speak with a representative, press the option to do so when the automated system offers it, or call 1-888-839-8898 during business hours. A representative can process your payment over the phone and answer questions about your account at the same time. Phone representatives are available Monday through Friday, 7 a.m. to 7 p.m. Central Time, and Saturday 8 a.m. to 5 p.m. Central Time.

Payments made by phone process the same day and post to your account within one business day. You will receive a confirmation number when the payment is submitted.

Paying by mail

Write a check or money order payable to TXU Energy. Include your account number on the check. Mail it to the address printed on your bill — this address changes depending on which TXU product you have and which region you are in, so always use the address on your current bill rather than a previous one.

Mail payment takes seven to ten business days to arrive and post to your account. If your due date is within two weeks, do not rely on mail payment. Send your payment at least ten business days before the due date to avoid a late fee.

Keep a copy of your check or the cancelled check when it returns to your bank as proof of payment. If you need to confirm that TXU received your payment before it posts, log into your online account or call the payment line.

Setting up automatic payments

Automatic payments deduct money from your bank account on a date you choose each month, usually around your due date. Log into your TXU account at mytxu.com, find the "Autopay" or "Automatic Payment" section, and enter your bank account information. You can choose to pay the full balance each month, a set dollar amount, or the minimum due.

Once autopay is active, you can still make additional payments by any other method without affecting your automatic payment. If you need to pause or cancel autopay, you can do so in your account settings at any time — the change takes effect on your next scheduled payment date.

Automatic payments from your bank account carry no fee from TXU. However, some banks charge a fee for automatic bill payments, particularly if you have a basic checking account. Check with your bank about their policy before you set up autopay.

What to do if your payment does not post

If you made a payment online or by phone and do not see it in your account within one business day, log into your TXU account and look for a "Payment History" or "Recent Transactions" section. This shows all payments TXU has received, including the date and amount. If your payment appears there, it has posted and may straightforward be slow to update on the main balance screen.

If your payment does not appear in your history after two business days, contact TXU at 1-888-839-8898 to confirm that the payment was received. Have your confirmation number ready if you have one. If you paid by mail and it has been more than ten business days since you mailed it, also contact TXU to trace the payment.

If TXU confirms they did not receive your payment, you can submit a new payment when ready through any method. If the original payment was deducted from your bank account but TXU never received it, your bank can help you dispute the transaction and recover the funds.

Frequently Asked Questions

Can I pay TXU with a credit card?

No, TXU does not accept credit card payments directly. You can pay only with a checking account, savings account, or debit card. If you want to use a credit card, you would need to pay your bank account with the credit card first, then pay TXU from that account — but this adds an extra step and may trigger fees from your credit card company.

What happens if I miss my due date?

TXU charges a late fee if your payment is not received by the due date shown on your bill. The late fee amount varies by region and account type. If you miss the due date, pay as soon as possible to stop additional late fees from accumulating. You can still avoid disconnection if you pay within a reasonable time — contact TXU when ready if you cannot pay by the due date to discuss options.

Can I pay someone else's TXU bill?

Yes, you can pay another person's bill if you have their account number. Use their account number instead of yours when you pay online, by phone, or by mail. The payment will post to their account. You do not need their permission to make a payment, though you will need their account number, which is on their bill.

Is there a fee for paying online or by phone?

TXU charges no fee for online or phone payment. The only fees that may explore are from your bank if you use automatic payments, and those depend on your bank's account type and policies. Check with your bank before setting up autopay to understand whether they charge a fee.

How do I know if my payment went through?

You will receive a confirmation number when ready after paying online or by phone. Log into your TXU account within one business day and check your payment history to confirm the payment posted. If you paid by mail, allow seven to ten business days before checking. If your payment does not appear after that time, contact TXU at 1-888-839-8898.