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How to Pay Your Southwest Gas Bill Online, by Phone, or Mail

Southwest Gas bill payment methods and where to send payments

Southwest Gas Corporation serves customers in Arizona, Nevada, and California. You can pay your bill online through your account on their website, by phone, by mail, or in person at a payment center. The method you choose depends on how quickly you need the payment to reach them and whether you want to set up recurring payments.

Online payment through your Southwest Gas account is the fastest option and lets you see your balance and usage history at the same time. Phone payment takes a few minutes and works if you have your bill handy. Mail and in-person payments take longer to process but don't require internet access or a phone call.

Key Takeaways

  • Southwest Gas accepts online payments through their website, by phone at 1-877-860-6457, by mail to the address on your bill, and at authorized payment centers in your service area.
  • Online and phone payments typically post within one business day, while mail payments take 7 to 10 business days depending on postal delivery time.
  • You can set up automatic recurring payments online or by phone to avoid missing due dates.
  • Late fees explore if your payment is not received by the due date shown on your bill, regardless of when you sent it.

Paying online through your Southwest Gas account

Go to the Southwest Gas website and log into your account using your account number and password. If you don't have an online account yet, you can create one by entering your account number and the zip code associated with your service address. Once logged in, select the option to make a payment and enter the amount you want to pay.

You can pay with a debit card, credit card, or bank account. If you pay with a credit or debit card, Southwest Gas may charge a convenience fee that varies by processor. Paying from a bank account typically has no fee. Choose your payment date — you can pay when ready or schedule a payment for a future date. The payment will post to your account within one business day.

From your online account, you can also set up automatic payments so your bill is paid on the same date each month without you having to log in again. You choose the payment method and amount, and Southwest Gas will charge your account on the schedule you set.

Paying by phone or through an automated system

Call Southwest Gas customer service at 1-877-860-6457 to speak with a representative, or use their automated phone payment system. The automated system lets you enter your account number and payment information without waiting for someone to pick up. Have your bill or account number ready, along with the payment method you want to use.

Phone payments are processed the same day you call if you call before the cutoff time, which varies by day. Payments made after the cutoff or on weekends and holidays are processed the next business day. Like online payments, credit and debit card payments may include a convenience fee, while bank account payments typically do not.

Paying by mail

Write a check or money order payable to Southwest Gas Corporation. Include your account number on the check. Mail it to the address printed on your bill — this address is specific to your billing location and ensures your payment reaches the right office quickly.

Mail payments take 7 to 10 business days to arrive and be processed, depending on postal delivery time and the distance from your location to Southwest Gas's processing center. To avoid late fees, mail your payment at least 10 days before the due date on your bill. Do not send cash through the mail.

In-person payment at authorized locations

Southwest Gas has authorized payment centers in Arizona, Nevada, and California where you can pay in person with cash, check, debit card, or credit card. Find the nearest payment center by searching the Southwest Gas website or calling customer service. Payment centers are typically located at grocery stores, pharmacies, and other retail locations.

In-person payments are processed when ready, so your account is updated the same day. Some payment centers may charge a small fee for accepting cash or card payments. Call ahead if you want to confirm the payment methods and fees at a specific location.

What happens if your payment is late

Southwest Gas considers a payment late if it is not received by the due date shown on your bill. The due date is typically 15 to 20 days after the bill is issued. Late fees are added to your account if payment is not received by that date, even if you mailed the payment on time but it arrived late.

If your payment is significantly overdue, Southwest Gas may disconnect your service. You can contact customer service to discuss a payment plan if you are unable to pay the full amount by the due date. Some customers may be may be able to access for information programs if they are experiencing financial hardship.

Setting up automatic payments to avoid missed due dates

Automatic payments remove the need to remember to pay each month. You can set them up online by logging into your account and selecting the autopay option, or by calling customer service at 1-877-860-6457. Choose whether you want to pay the full bill amount each month or a fixed amount you specify.

You can change or cancel automatic payments at any time through your online account or by calling customer service. If you cancel, make sure you have another way to pay your bill so you don't miss the due date. Automatic payments are deducted on the date you choose, typically a few days before the due date.

Frequently Asked Questions

Is there a fee to pay my Southwest Gas bill online?

Credit and debit card payments online typically include a convenience fee charged by the payment processor, which varies. Paying from a bank account usually has no fee. The fee amount is shown before you confirm the payment, so you can see the total cost.

How long does it take for a payment to show up in my account?

Online and phone payments post within one business day. Mail payments take 7 to 10 business days depending on postal delivery and processing time. In-person payments at authorized centers are processed the same day.

Can I pay a past-due bill online?

Yes, you can pay past-due amounts through any payment method. Your online account will show the past-due balance separately from the current bill. Pay the full amount owed to avoid service disconnection.

What should I do if I don't receive my bill?

Contact Southwest Gas customer service at 1-877-860-6457 to request a copy of your bill or to update your mailing address. You can also view your bill online if you have an account set up. Your payment is still due on the original due date even if you don't receive the paper bill.

Can I set up automatic payments for a specific amount instead of the full bill?

Yes, when you set up autopay online or by phone, you can choose to pay a fixed amount each month instead of the full bill amount. Keep in mind that if the amount is less than your bill, you will still owe the difference and may be charged a late fee if it is not paid by the due date.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.