Where to pay your National Grid gas bill
National Grid offers several ways to pay your gas bill, and the fastest route depends on whether you want to pay right now or set up automatic payments. You can pay online through your National Grid account, by phone, by mail, or through automatic bank withdrawal. Each method has different timing — some post the same day, others take several business days.
The online portal is the quickest if you have your account number and a debit or credit card ready. You log in at the National Grid website, find your bill, and submit payment in minutes. Phone payments work the same way: call the number on your bill and a representative will process it while you wait. Both methods typically post within one business day.
If you prefer not to enter payment information online, you can mail a check to the address printed on your bill. Mail payments take longer — usually 7 to 10 business days from the time National Grid receives it — so send it early if your due date is approaching. Automatic bank withdrawal (also called autopay) removes the need to remember each month and prevents late fees, though you should still check your bill each cycle to catch errors.
Key Takeaways
- Online and phone payments post within one business day, while mailed checks take 7 to 10 days after National Grid receives them.
- You need your account number and either a debit card, credit card, or bank account information to pay through any method except mail.
- Autopay removes the due date from your calendar but requires you to review your bill each month for billing errors.
- Late fees apply if payment does not post by the due date shown on your bill, regardless of when you submitted it.
- If you cannot pay the full amount by the due date, contact National Grid before the date to discuss payment plans or hardship programs.
Setting up automatic payments through your National Grid account
Autopay is the simplest way to avoid missed payments and late fees. You set it up once in your National Grid online account, and the company withdraws the amount from your bank account on a date you choose — usually a few days after your bill is issued. You can change the payment date or pause autopay at any time if your circumstances change.
To set up autopay, log into your National Grid account, go to the payment or billing section, and select the autopay option. You will need to provide your bank routing number and account number, or authorize a debit card. National Grid will ask you to confirm the amount and the date each month. Some customers choose to pay the full bill automatically, while others set it to a fixed amount and pay the remainder manually.
The main risk with autopay is that you stop looking at your bill. If National Grid makes an error — charges you twice, bills you for a neighbor's usage, or applies a rate change incorrectly — you might not notice until several months have passed. Check your bill online each month, even if autopay is running, to catch problems early.
Paying by phone or online without setting up an account
You do not need to create a National Grid online account to pay a single bill. If you have your bill in front of you, you can pay immediately by phone or through the National Grid website's one-time payment option. Both methods ask for your account number, the amount you want to pay, and your payment method.
Phone payments are processed by a representative who will confirm the amount and the date it will post. Online one-time payments show you a confirmation number immediately, which you should save or screenshot in case there is a dispute later. Neither method charges a fee for debit card or bank account payments, though some credit card processors may add a small surcharge.
If you pay by phone or online but do not set up an account, you will not see the payment history in a dashboard. Keep your confirmation number and the date you paid in case you need to prove payment later — for example, if National Grid sends a late notice before the payment posts.
What to do if you cannot pay by the due date
If you know you cannot pay the full bill by the due date, call National Grid before that date. The company offers budget billing and payment plans that spread your bill across several months, which can lower your monthly payment and reduce the chance of a late fee. You must request these before you miss a payment — they are harder to arrange after the fact.
Budget billing averages your annual gas usage and charges you the same amount each month, so your winter bills are lower and your summer bills are higher than they would be otherwise. This works well if your income is steady but your heating costs spike in cold months. Payment plans let you pay part of the bill now and the rest over the next few months, with a set schedule.
If you are struggling to pay because of a hardship — job loss, medical emergency, or reduced income — National Grid may have additional programs. These vary by state and by your income level. Call the number on your bill and ask about hardship assistance or low-income programs in your area. The representative can tell you what documents you need and whether you currently meet the income limits.
Understanding late fees and disconnection
National Grid charges a late fee if your payment does not post by the due date on your bill. The fee amount varies by state and by how late the payment is, but it is typically a percentage of your bill or a flat amount. Late fees are added to your next bill, which means you owe more the following month and are more likely to fall further behind.
If you are more than a certain number of days late — usually 30 to 60 days, depending on your state — National Grid can disconnect your gas service. Disconnection is not immediate; the company must send you a notice and give you time to pay or contact them about a plan. Once service is disconnected, you will have to pay a reconnection fee on top of your overdue balance to have gas restored.
If you receive a disconnection notice, call National Grid immediately. Even if you cannot pay the full amount, the company may delay disconnection if you agree to a payment plan or if you are in a state with winter protection rules that prevent disconnection during cold months.
Checking your payment history and resolving posting delays
If you pay online or through autopay, you can see your payment history in your National Grid account. The account shows the date you submitted payment, the amount, and the date it posted. If a payment shows as submitted but not posted after several business days, log in and check the status, or call National Grid to confirm it was received.
Mailed checks sometimes get lost or delayed in the mail. If you mailed a check and the due date has passed, call National Grid with the check number and the date you mailed it. The company can search for it and may delay a late fee if they find it in their system. If the check is truly lost, you will need to submit a new payment and may be able to stop payment on the original check through your bank.
Credit card payments sometimes fail if the card has expired, been reported lost, or has insufficient funds. If your online payment is declined, you will see an error message. Try again with a different card or payment method, or call National Grid to pay by phone instead. Do not assume the payment went through if you see an error — confirm the status in your account or by calling.
Frequently Asked Questions
Does National Grid charge a fee to pay my bill online or by phone?
No fee for debit card or bank account payments. Some credit card processors charge a small surcharge (usually 2 to 3 percent of the bill) if you pay with a credit card, and National Grid will disclose this before you confirm the payment. Mailed checks and autopay have no fees.
How long does it take for a mailed check to post?
National Grid typically receives mail 3 to 5 days after you send it, then processes it within 1 to 2 business days. Total time is usually 7 to 10 days. If your due date is within two weeks, pay online or by phone instead to avoid a late fee.
Can I change my autopay date or amount each month?
Yes. Log into your account and adjust the date or amount before the payment is scheduled to process. If you want to skip a month, you can pause autopay and resume it later. Some customers set autopay to a fixed amount and pay the difference manually if their bill varies.
What happens if I pay late?
A late fee is added to your next bill. If you are 30 to 60 days late (depending on your state), National Grid will send a disconnection notice. You then have a window to pay or contact the company about a plan before service is shut off. Reconnection requires paying your overdue balance plus a reconnection fee.
Can I set up a payment plan if I am behind on my bill?
Yes, but call National Grid before or immediately after you miss a payment. The company is more willing to work with you if you contact them first. Payment plans spread your overdue balance across several months, and you must keep current on new bills while paying down the old one.