How to Pay Your TXU Energy Bill Online and by Mail

TXU offers multiple ways to pay your bill, including online through their website, by phone, automatic bank withdrawal, and by mail

TXU Energy is a retail electric provider that serves customers in Texas. When your bill arrives, you can pay it through their official website at mytxu.com, by calling their customer service line, setting up automatic payments from your bank account, or sending a check by mail. Each method has different timing and requirements, so choosing the right one depends on whether you want to pay when ready, set it and forget it, or avoid online transactions.

The fastest way to pay is online through your TXU account. You log in, view your bill, and submit payment the same day. Phone payments work similarly but require speaking to a representative. Automatic bank withdrawal (also called autopay) pulls money from your checking or savings account on a date you choose each month. Mail takes the longest because the check must arrive and be processed, typically 7 to 10 business days after you send it.

Key Takeaways

• You can pay your TXU bill online at mytxu.com, by phone, through automatic bank withdrawal, or by mailing a check to the address on your bill.
• Online and phone payments usually post to your account within one business day, while mailed checks take 7 to 10 business days to clear.
• Automatic payments remove the need to remember your due date each month, but you must set them up in advance through your TXU account or by phone.
• If you pay online or by phone with a debit or credit card, TXU may charge a convenience fee that varies depending on the payment method.
• Late payments can result in a late fee and may trigger a disconnection notice if your account falls significantly behind.

Paying online through your TXU account

Log in to 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 (found on your bill) and other identifying information. Once logged in, select "Pay My Bill" or a similar option from the menu.

You will see your current balance and due date. Enter the amount you want to pay — you can pay the full balance, a partial amount, or a one-time extra payment. Choose your payment method: bank account (checking or savings), debit card, or credit card. Bank account transfers typically have no fee. Debit and credit card payments usually incur a convenience fee, which TXU will show you before you confirm the payment.

After you submit the payment, you will receive a confirmation number. Write this down or take a screenshot. The payment usually posts to your account within one business day. If you need to pay before your due date to avoid a late fee, paying online is the fastest method besides calling customer service.

Setting up automatic payments from your bank account

Automatic payments remove the need to remember your due date each month. To set this up, log into mytxu.com, go to your account settings, and look for "Autopay" or "Automatic Payments." You will enter your bank account number and routing number, then choose the day of the month you want the payment to come out.

Most customers choose a date shortly after they receive their paycheck or a few days before the due date. TXU will withdraw the full bill amount each month unless you change the settings. If your bill varies (which is common with electricity, since usage changes with the season), the withdrawal amount will change each month to match your new bill.

You can pause or cancel autopay at any time through your account settings or by calling TXU customer service. If you cancel, you will need to switch to another payment method to avoid a late payment. Autopay payments have no convenience fee and are one of the most reliable ways to stay current on your bill.

Paying by phone or through third-party payment services

Call TXU customer service at the number on your bill to pay over the phone. A representative will ask for your account number and the amount you want to pay, then process your payment using a debit card, credit card, or bank account information. Phone payments post within one business day, just like online payments.

Some third-party payment processors also accept TXU bills. These services charge their own fees and may be slower than paying directly through TXU. Unless you have a specific reason to use a third party (such as earning rewards through a payment app), paying directly through mytxu.com or by phone to TXU is simpler and often cheaper.

Mailing a check or money order

Write a check or money order for the amount you owe. On the check, write your TXU account number in the memo line so the payment is applied to the correct account. Mail it to the address printed on your bill — this address is specifically for payments and is different from TXU's main office.

Mail payments take 7 to 10 business days to arrive and be processed. If your due date is within two weeks, mailing a check is risky because it may not arrive in time. If you must mail a payment, send it at least 10 business days before your due date. Keep a copy of the check or the envelope for your records.

Money orders are safer than checks if you are concerned about a check being lost or stolen. You can buy a money order at most banks, grocery stores, and post offices for a small fee (usually under $2). The process is otherwise the same as mailing a check.

Understanding late fees and disconnection notices

Your TXU bill will show a due date. If you do not pay by that date, TXU will charge a late fee. The amount of the late fee varies and is shown on your bill or in your account. Late fees are added to your next bill, increasing what you owe.

If your account remains unpaid for a longer period (the exact number of days varies), TXU may send a disconnection notice warning that your service will be shut off. This notice gives you a window to pay or contact TXU to arrange a payment plan. If you receive a disconnection notice, call TXU when ready — they may be able to stop the disconnection if you pay or set up a plan before the cutoff date.

If your service is disconnected, you will need to pay the full balance plus a reconnection fee to restore power. This is much more expensive than paying on time, so if you are struggling to pay your bill, contact TXU before you fall behind to discuss payment options or hardship programs.

Convenience fees and payment method costs

TXU charges no fee when you pay from a bank account (checking or savings). If you pay with a debit card or credit card, TXU charges a convenience fee. This fee is a percentage of your payment or a flat dollar amount — TXU will show you the exact fee before you confirm the payment, so you can decide whether to proceed.

The convenience fee exists because credit card and debit card companies charge TXU a processing fee for each transaction. By passing this cost to customers who choose card payments, TXU keeps the cost of bank account payments at zero. If you want to avoid the fee, use bank account transfer or autopay instead.

Third-party payment services may charge their own fees on top of any TXU fee. Always check what you will be charged before submitting a payment through an unfamiliar service.

Frequently Asked Questions

What if I pay online but my payment does not show up in my account?

Online payments usually post within one business day. If more than one business day has passed and you do not see the payment, log back into your account to check the status. You can also call TXU customer service with your confirmation number to verify the payment was received. If there was an error, TXU can help you resubmit or investigate what happened.

Can I set up autopay if I do not have a bank account?

Autopay requires a bank account (checking or savings). If you do not have one, you can pay online or by phone using a debit card or credit card each month, though this will include a convenience fee. Some community banks and credit unions offer low-cost checking accounts if you want to open one specifically for autopay.

What happens if I pay more than I owe?

If you overpay, the extra amount becomes a credit on your account. This credit will be applied to your next bill, reducing what you owe that month. If you want a refund instead of a credit, contact TXU customer service to request one.

Can I change my autopay date if it does not work with my pay schedule?

Yes. Log into mytxu.com, go to your autopay settings, and select a new date. The change usually takes effect on your next billing cycle. If you need to change the date before your next payment comes out, call TXU customer service to make the change when ready.

Is there a way to pay my bill without going online?

Yes. You can pay by phone by calling the number on your bill, mail a check to the address on your bill, or set up autopay through your bank account. All three methods work without using the internet, though setting up autopay does require one online visit to your TXU account or one phone call to customer service.