How to Pay Your Southwestern Gas Bill Online

What Southwestern Gas's Online Bill Pay Does

Southwestern Gas (also called Southwest Gas Corporation) lets you pay your bill through their website or mobile app instead of mailing a check or paying by phone. You log in to your account, confirm the amount due, choose a payment date, and submit. The payment goes directly to your account and shows up in your billing history.

This is the company's own bill pay system — not a third-party service — so the payment posts to the same account where your bill appears. You can pay the full balance, a partial amount, or set up a recurring payment that happens automatically each month on a date you choose.

Key Takeaways

• You need a Southwestern Gas online account to use their bill pay, which you can create on their website using your account number and service address.
• Payments made online typically post within one to two business days, so plan ahead if your bill is due soon.
• You can choose to pay once or set up automatic monthly payments that deduct from your bank account on the same day each month.
• Southwestern Gas accepts payments from checking or savings accounts; you will need your bank routing number and account number to set up the payment method.

Creating Your Online Account

Go to the Southwestern Gas website and look for a "Sign In" or "Create Account" link, usually at the top of the page. If you do not have an account yet, select the option to register. You will need your account number (found on your bill), your service address, and a valid email address.

After you enter those details, Southwestern Gas will send you a confirmation email. Click the link in that email to verify your address, then create a username and password. Once your account is active, you can log in anytime to view your bill and make a payment.

How to Make a One-Time Payment

Log in to your Southwestern Gas account and look for a "Pay My Bill" or "Make a Payment" button — this is usually on your account dashboard or in a menu labeled "Billing." Click it to start the payment process.

The system will show your current balance and the due date. Enter the amount you want to pay (or accept the full balance if that is what you owe). Then select your payment method. If this is your first payment online, you will need to add a bank account by entering your routing number and account number. Southwestern Gas will ask whether the account is checking or savings.

Choose the date you want the payment to be deducted from your bank account. Payments typically post within one to two business days, though the exact timing depends on your bank. Review the details, then submit. You will see a confirmation number on screen — write it down or take a screenshot for your records.

Setting Up Automatic Monthly Payments

If you want the same amount to come out of your bank account every month, you can set up automatic payments instead of paying manually each time. Log in, go to the bill pay section, and look for an option like "Autopay" or "Recurring Payment."

Select the amount (usually your average bill or a fixed amount you choose), the day of the month you want it to be deducted, and confirm your bank account details. Once it is set up, the payment will happen automatically on that day each month. You can change or cancel it anytime by logging back in and updating your autopay settings.

What to Do If Your Payment Does Not Post

If you submitted a payment and it does not show up in your account within two business days, log back in and check your payment history. Southwestern Gas usually shows pending payments there, along with the expected posting date.

If the payment is not listed at all, contact Southwestern Gas customer service with your confirmation number. They can look up the transaction and tell you whether it went through. If there was an error — such as the payment being sent to the wrong account — they can help you correct it. Keep your confirmation number and the date you made the payment so you have proof if you need to dispute a charge with your bank.

Changing or Canceling a Payment

If you need to change the amount or date of a payment you have already submitted, the window to do so depends on when the payment is scheduled. Log in and check your pending payments. If the payment has not yet been processed (usually within 24 hours of submission), you may be able to cancel it and submit a new one instead.

Once a payment has posted to your account, you cannot cancel it, but you can make an additional payment to adjust your balance. If you set up automatic payments and want to stop them, go to your autopay settings and turn off the recurring payment. This will not affect payments you have already made.

Frequently Asked Questions

Is there a fee to pay my bill online?

Southwestern Gas does not charge a fee for paying through their website or app. The payment is free whether you pay once or set up automatic payments. Your bank may charge a fee if you use a credit card instead of a bank account, but paying from a checking or savings account has no cost.

Can I pay with a credit card?

Southwestern Gas's website typically accepts payments from bank accounts (checking or savings) but may not accept credit cards directly. If you want to pay with a credit card, call their customer service line to ask about third-party payment options, as policies vary by region.

What if I forgot my password?

On the Southwestern Gas login page, look for a "Forgot Password" or "Reset Password" link. Click it, enter your username or email address, and the system will send you a reset link. Click that link to create a new password, then log in with your new credentials.

Can I see my payment history online?

Yes. Once you are logged in, your account dashboard shows all payments you have made, including the date, amount, and whether each one has posted. You can usually read or print this history if you need it for your records.

How do I know if my automatic payment went through?

Log in to your account and check your payment history or billing page. You should see the payment listed with a posting date. You can also check your bank account to confirm the deduction. If you do not see it within two business days, contact Southwestern Gas customer service.