Call National Grid's automated payment line to pay your bill by phone using your account number and a debit or credit card
National Grid operates a phone payment system that lets you pay without logging into a website or visiting an office. You call their automated line, enter your account number, and complete the payment in a few minutes. The system accepts debit cards, credit cards, and bank account information.
Payment by phone costs nothing extra — there is no fee on top of your bill amount. The payment goes through immediately, though it may take a business day or two to show on your account.
Key Takeaways
- National Grid's phone payment number is on your bill; call the automated system with your account number and card details ready.
- Payments made by phone are processed the same day but may not show as posted to your account until the next business day.
- You can pay by debit card, credit card, or bank account transfer; there is no additional charge for using the phone line.
- If you cannot reach the automated system or need to discuss your account, you can ask to speak to a representative during business hours.
- Keep your confirmation number from the call in case you need to verify the payment later.
Finding the National Grid payment phone number
The phone number for National Grid bill payments appears on your paper bill, usually near the top or in a box labeled "Pay Your Bill" or "Contact Us." If you have your bill in front of you, look there first — it is the fastest way to find the correct number for your region.
National Grid serves multiple states (Massachusetts, New York, and Rhode Island), and the phone number may vary slightly by location. Using the number on your bill ensures you reach the right payment line for your service area.
If you cannot find your bill, you can also log into your National Grid online account and look for a "Pay Now" or "Contact Us" section, which will display the phone number for your region.
What you need before you call
Gather these items before dialing: your National Grid account number (found on your bill), the amount you want to pay, and a valid debit or credit card or your bank account information. The automated system will ask for each of these in order.
Your account number is usually a 10 to 12-digit code printed on the front of your bill. If you are paying from a bank account instead of a card, have your routing number and account number ready — these appear on the bottom left of your checks.
You do not need to have the exact bill amount memorized. The system will tell you what you owe, and you can choose to pay the full amount, a partial amount, or a different sum if you are making an extra payment.
How the automated payment system works
When you call, an automated voice system will guide you through the steps. It will ask you to enter your account number using your phone keypad, then confirm the amount owed. Next, it will ask whether you want to pay by card or bank account.
If you choose a card, enter the card number, expiration date, and the three-digit security code on the back. If you choose a bank account, enter your routing number and account number. The system will then confirm the payment amount and give you a confirmation number — write this down.
The entire call usually takes three to five minutes. At the end, the system will tell you when the payment will be processed. Save your confirmation number in case you need to look up the payment later or if there is a question about whether it went through.
When the payment shows up on your account
Payments made by phone are processed the same day you call, but they may not appear as "posted" on your National Grid account until the next business day. This is normal and does not mean the payment failed.
If you call on a weekend or holiday, the payment will be processed on the next business day. If you are close to a due date and worried about a late fee, call during business hours on a weekday to ensure same-day processing.
Check your account online or on your next bill to confirm the payment went through. If more than two business days have passed and you still do not see the payment, call National Grid's customer service line (also on your bill) with your confirmation number.
Paying by phone versus other payment methods
Phone payment is fastest if you do not want to set up an online account or use automatic payments. It takes a few minutes and requires no passwords or usernames to remember. However, if you pay the same amount every month, setting up automatic payments through your online account or bank can save you the step of calling each time.
Online payment through National Grid's website or app also works without a phone call and lets you see your payment history in one place. Mail payment takes longer — typically 7 to 10 business days — so it is not the best choice if your bill is due soon.
If you have trouble with your card or bank account during a phone call, you can always hang up and try again later or use a different payment method. There is no penalty for starting over.
What to do if you cannot complete the payment by phone
If the automated system rejects your card or bank account, try these steps: first, hang up and check that you entered the account number and card details correctly, then call back. If the same card keeps failing, try a different card or switch to paying by bank account.
If the automated system is not working or you need to discuss your account before paying, press the button or say the word to speak to a representative. National Grid's customer service team can take your payment over the phone manually and may be able to explain any issues with your account at the same time.
You can also pay online, by mail, or in person at a National Grid office if the phone line is not working. Check your bill for these alternative payment addresses and phone numbers.
Frequently Asked Questions
Is there a fee for paying by phone?
No. National Grid does not charge a fee for phone payments. You pay only the amount of your bill, with no additional service charge added.
Can I pay someone else's National Grid bill by phone?
You can if you have their account number and permission. The automated system will ask for the account number, not a name, so it does not verify who is calling. However, paying someone else's bill without their knowledge or consent is not recommended. If you are authorized to manage the account, you can also set up online access under your own login.
What if I want to set up a payment plan instead of paying the full bill?
The phone payment system handles one-time payments only. To discuss a payment plan or hardship program, you need to speak to a National Grid representative. Press the option to speak to a person during your call, or call the customer service number on your bill during business hours.
How long does a phone payment take to clear?
The payment is processed the same day you call, but it may take one to two business days to show as posted on your account. If you call on a weekend or holiday, processing happens on the next business day. The confirmation number you receive proves the payment was submitted, even if it has not posted yet.
Can I cancel a phone payment after I hang up?
Once the automated system gives you a confirmation number, the payment is submitted and cannot be canceled through the phone line. If you need to cancel or dispute the payment, call National Grid's customer service line with your confirmation number. They can investigate whether the payment can be reversed, though this depends on how much time has passed.