National Grid's online payment portal lets you pay from your computer or phone without calling or mailing a check
National Grid operates in New York, Massachusetts, and Rhode Island. To pay online, you log into your account on the National Grid website, enter your account number (found on your bill), and choose a payment amount and date. The system accepts bank transfers and credit or debit cards, though card payments may include a processing fee.
You do not need to create a new account if you already receive bills from National Grid — you can use your existing login. If you have never logged in before, you will need your account number and the zip code associated with your service address to set up access.
Key Takeaways
- National Grid's online payment system is available 24/7 on their website and lets you pay immediately or schedule a payment for a future date.
- Bank account payments (ACH transfers) typically have no fee, while credit and debit card payments usually charge a processing fee of 2 to 3 percent.
- Your account number appears on your bill and is required to log in or make a one-time payment without creating an account.
- Payments made before 8 p.m. Eastern Time on a business day usually post to your account the same day.
- If you miss a due date, you can still pay online — late fees are separate from the payment method you choose.
Setting up online access to your National Grid account
Go to the National Grid website and select "Log In" or "Pay My Bill." If you do not have an online account yet, choose "Create Account" or "Register." You will need your account number (a 10-digit number on your bill), your service address zip code, and an email address.
After you enter these details, National Grid sends a verification email. Click the link in that email to confirm your address. Then create a username and password. Once you are logged in, you can view your bill, see your payment history, and set up automatic payments.
If you forget your password, use the "Forgot Password" link on the login page. National Grid will send a reset link to the email address you registered. If you no longer have access to that email, call National Grid's customer service line — the number is on your bill — and they can help you regain access.
Making a one-time payment without logging in
You do not have to create an account to pay once. On the National Grid website, look for "Pay Without Logging In" or "One-Time Payment." Enter your account number, service address zip code, and the amount you want to pay. Then choose your payment method and the date you want the payment to go through.
This route is faster if you are paying just once and do not plan to check your account balance or set up automatic payments later. The payment still posts the same way as if you had logged in — usually the same business day if you pay before 8 p.m. Eastern Time.
Choosing between bank transfer and card payment
National Grid accepts two main payment methods online: bank account transfers (ACH) and credit or debit cards. Bank transfers pull money directly from your checking or savings account and usually have no fee. Card payments charge a processing fee, typically 2 to 3 percent of the amount you pay. On a $150 bill, that fee would be $3 to $4.50.
If you pay by card regularly, the fees add up. Over a year, paying a $150 monthly bill by card costs $36 to $54 in fees alone. Switching to bank transfer saves that money. However, some people prefer cards for the rewards points or to keep a record through their credit card statement. Weigh the fee against the benefit that matters to you.
Bank transfers take one to two business days to post after you submit them, while card payments usually post the same day. If your due date is tomorrow, a card payment is the safer choice. If you have time, bank transfer costs nothing.
Setting up automatic payments so you never miss a due date
Once you are logged into your account, look for "Autopay," "Automatic Payment," or "Recurring Payment" in the account settings or billing section. Choose the payment method (bank account or card), the amount (your full bill or a set dollar amount), and the date each month you want the payment to go through.
Most people set automatic payments for the due date shown on their bill or a few days before. National Grid will deduct the payment automatically each month until you turn off the service. You can change the amount, date, or payment method anytime by logging back in.
Automatic payments reduce the risk of late fees, but you still need to check your bill each month to make sure the amount is correct. If your bill changes — because of seasonal heating or cooling use, a rate change, or a billing error — your automatic payment might not cover the full amount. Set a reminder to review your bill before the payment goes through.
What to do if your payment does not go through
If a payment fails, National Grid usually sends an email or letter explaining why. Common reasons include insufficient funds in your bank account, an expired card, or a mismatch between the address on file and your payment method.
Log back into your account and try the payment again with corrected information. If the problem persists, call National Grid's customer service number (on your bill) and ask them to process the payment over the phone or help you troubleshoot the issue. Do not wait — a failed payment can lead to a late fee or service interruption if your account falls too far behind.
If you know you cannot pay the full amount by the due date, contact National Grid before the deadline. Many regions have programs that let you extend the due date or set up a payment plan. Acting early gives you more options than waiting until after you miss the deadline.
Timing and posting: when your payment shows up on your account
The speed at which your payment posts depends on the method and the time you submit it. Bank transfers submitted before 8 p.m. Eastern Time on a business day usually post the next business day. Card payments submitted before 8 p.m. Eastern Time on a business day usually post the same day. Payments submitted on weekends or holidays post on the next business day.
Your bill shows a due date, not a posting date. As long as your payment posts by the due date, you will not be charged a late fee. If you are cutting it close, use a card payment or call National Grid to pay over the phone — both are faster than a bank transfer.
Keep a record of your confirmation number after you pay. If there is ever a dispute about whether you paid on time, that number proves when you submitted the payment.
Frequently Asked Questions
Is there a fee to pay my National Grid bill online?
Bank account payments have no fee. Credit and debit card payments charge a processing fee of roughly 2 to 3 percent. Paying by phone or mail does not cost extra, but online bank transfer is the cheapest option if you have time to wait a day for the payment to post.
Can I pay my bill if I do not have an online account?
Yes. National Grid's website has a "Pay Without Logging In" option where you enter your account number and zip code, then choose your payment method and amount. You do not have to create an account to make a one-time payment.
What happens if I pay after the due date?
Late fees apply if your payment posts after the due date shown on your bill. The fee amount varies by state and your service company. Paying online does not waive the late fee, but it stops additional fees from accruing once your account is current again.
Can I schedule a payment for a future date?
Yes. When you make a payment online, you can choose the date you want it to go through. This is useful if you want to pay on payday or coordinate the payment with when money arrives in your account. The payment will not post until the date you select.
What should I do if my payment fails?
Check your email or account for a message explaining why. Common reasons are insufficient funds, an expired card, or an address mismatch. Log in and try again with corrected information, or call National Grid's customer service number on your bill for help.