Where to send your New Mexico gas payment

Most New Mexico residents get natural gas from one of two utilities: PNM (Public Service Company of New Mexico) or Southwest Gas. A few areas have smaller local utilities. Your bill will show which company serves you and where to send payment.

You can pay by mail, phone, online, or in person at a payment center. The fastest way is usually online through your utility's website — you'll need your account number from your bill. If you pay by mail, send your check or money order to the address printed on your bill, and allow at least 10 business days for it to reach them and post to your account.

If you're behind on your bill or facing a shutoff, contact your utility directly before the due date. Many utilities offer payment plans that let you spread what you owe across several months, and some have hardship programs that reduce bills for households with low income.

Key Takeaways

  • PNM and Southwest Gas are the two main gas utilities in New Mexico; your bill shows which one serves you.
  • Online payment through your utility's website is the fastest method and usually posts within one business day.
  • Mailed checks take 10 business days or longer to post, so plan ahead if you pay by mail.
  • If you cannot pay in full, call your utility to ask about payment plans or hardship programs before your service is shut off.

Paying online through PNM

PNM's online payment portal is at pnm.com. Log in with your account number and password, or create an account if you don't have one yet. You can pay with a debit card, credit card, or bank account transfer. Payments made before 5 p.m. Mountain Time usually post the same day.

PNM also offers AutoPay, which automatically deducts your bill from a bank account on your due date each month. You can set this up online or by calling 1-888-342-5766. AutoPay removes the risk of forgetting a payment, though you should still check your bill each month to make sure the amount is correct.

Paying online through Southwest Gas

Southwest Gas customers can pay at swgas.com. You'll need your account number and the ZIP code associated with your account. Like PNM, you can use a debit card, credit card, or bank transfer. Payments submitted before their cutoff time (usually early afternoon) post the same business day.

Southwest Gas also offers automatic payments through their website. You can choose to pay the full bill amount or a fixed amount each month. If you set up AutoPay, you'll receive a confirmation email, and you can cancel it anytime through your account.

Paying by phone or mail

Both PNM and Southwest Gas accept phone payments. PNM's phone line is 1-888-342-5766; Southwest Gas is 1-877-860-6025. Have your account number and a debit card or bank account ready. Phone payments may carry a small fee depending on your utility.

If you prefer to mail a check or money order, write your account number on the back and send it to the address on your bill. Do not send cash through the mail. Allow at least 10 business days for delivery and posting. If you're close to your due date, mailing is risky — online or phone payment is safer.

In-person payment locations

PNM has payment centers in Albuquerque and other larger cities where you can pay in person with cash, check, or card. Find the nearest location at pnm.com or call 1-888-342-5766. Southwest Gas also accepts in-person payments at select locations; check swgas.com for addresses near you.

In-person payment posts when ready or within one business day, making it a good option if you need to pay quickly and prefer not to use online banking. Bring your account number and a form of payment.

What to do if you cannot pay your full bill

If you're struggling to pay, contact your utility before your bill is due. Both PNM and Southwest Gas offer payment plans that spread your balance across several months, usually without extra fees. You'll need to make on-time payments on the plan to keep your service active.

New Mexico also has utility information programs for households with low income. The Low Income Home Energy information Program (LIHEAP) can help pay heating and cooling bills. You can find local programs through your county social services office or by calling 2-1-1 (a free helpline that connects you to local resources). information programs have income limits and may have waiting lists, especially in winter months.

Understanding your bill and due dates

Your gas bill shows your account number, the amount due, and the due date. Most utilities give you about 20 days from the bill date to pay before they charge a late fee. If you pay after the due date, you may owe an additional amount. Check your bill for the exact due date, as it can vary slightly month to month.

Your bill also shows your usage in therms (a unit of natural gas). Winter bills are usually higher because heating uses more gas. If your bill seems unusually high, check whether the meter was actually read or estimated, and compare it to the same month last year.

Frequently Asked Questions

What happens if I miss my due date?

Your utility will charge a late fee, usually 1 to 2 percent of your bill. If you're more than 30 days late, the utility may shut off your service. Call them as soon as you realize you'll be late — many will work with you on a payment plan to avoid shutoff.

Can I pay someone else's gas bill?

Yes. Call the utility with the account number and ask how to make a payment toward that account. You can pay by phone or online using the account number instead of your own. Some utilities also let you set up a third-party payment arrangement so you pay regularly on someone else's behalf.

Is there a fee for paying online?

PNM and Southwest Gas do not charge a fee for online payments made through their official websites. Some third-party payment services may charge a fee, so always pay directly through your utility's website to avoid extra costs.

How long does it take for an online payment to post?

Payments made before the cutoff time (usually 5 p.m. Mountain Time) post the same business day. Payments made after hours or on weekends post the next business day. Check your utility's website for their exact cutoff time.

What if I want to dispute a charge on my bill?

Contact your utility's customer service line before paying. Explain what you think is wrong — they can review your meter reading and usage history. If you disagree with their explanation, ask about their formal dispute process. Do not withhold payment while disputing; continue paying what you believe you owe to avoid late fees.