How to Pay Your National Grid Bill Online, by Phone, or Mail

Where and how to pay National Grid

National Grid operates electric and gas utilities across New York, Massachusetts, and Rhode Island. You can pay your bill through 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 processed and whether you want to set up automatic payments.

Most customers pay online through the National Grid website or mobile app, which processes payments the same day if submitted before the cutoff time (usually 5 p.m. Eastern). Phone payments go through the same day if you call before 8 p.m. Eastern. Mail payments take 7 to 10 business days to reach National Grid's processing center, so you should mail your check well before your due date to avoid a late fee.

National Grid does not charge a fee for online or phone payments made directly through their system. Third-party payment processors that appear in search results may charge a convenience fee, so confirm you are using National Grid's official channels before entering payment information.

Key Takeaways

• National Grid's official website and mobile app process online payments the same day if submitted before 5 p.m. Eastern, with no fee.
• Phone payments through National Grid's automated system or a representative also process the same day if called before 8 p.m. Eastern.
• Mail payments take 7 to 10 business days, so send your check at least two weeks before the due date to avoid late fees.
• Setting up automatic payments through your bank account or debit card removes the need to pay manually each month and prevents missed due dates.
• Third-party payment websites may charge convenience fees that National Grid's official channels do not, so use the utility's direct payment options when possible.

Paying online through the National Grid website or app

Go to the National Grid website for your state (nationalgridus.com for New York, Massachusetts, or Rhode Island). Click "Pay My Bill" or "Make a Payment" and enter your account number, which appears on your bill. You can find your account number in the upper right corner of your paper bill or in the account section of the mobile app.

Enter the amount you want to pay and choose your payment method: debit card, credit card, or bank account. Bank account payments (ACH transfers) have no fee and process the same day. Debit and credit card payments also process the same day but may carry a small fee depending on your card type; National Grid will show the fee before you confirm the payment.

After you submit payment, you will receive a confirmation number. Save this number or take a screenshot—it serves as your receipt if a payment dispute arises. The payment will appear on your account within one business day.

Paying by phone

Call National Grid's automated payment line at 1-800-752-6633 (New York), 1-800-322-3223 (Massachusetts), or 1-800-322-3223 (Rhode Island). Have your account number and payment method ready. The automated system will walk you through entering your account number, the payment amount, and your debit card or bank account information.

If you prefer to speak with a representative, stay on the line after the automated greeting or press the option for customer service. A representative can process your payment over the phone and answer questions about your account. Phone payments process the same day if submitted before 8 p.m. Eastern.

Like online payments, you will receive a confirmation number at the end of the call. Write it down or note it in your phone for your records.

Paying by mail

Write a check or money order payable to National Grid. Include your account number on the check. Mail your payment to the address printed on your bill—this address routes your payment to the correct processing center for your state and utility.

Mail payments typically take 7 to 10 business days to arrive and be processed. To avoid a late fee, mail your payment at least two weeks before the due date. If you are close to the due date, use online or phone payment instead.

Do not mail cash. If you do not have a checking account or prefer not to use one, you can purchase a money order at most grocery stores, pharmacies, or banks for a small fee.

Setting up automatic payments

Automatic payments remove the need to pay manually each month and prevent missed due dates. Log into your National Grid account online, go to "Billing" or "Account Settings," and select "Autopay" or "Automatic Payments." Choose the date you want the payment to come out each month—most customers choose a date shortly after they receive their bill.

You can set up automatic payments to pay your full bill amount or a fixed amount you choose. If you set a fixed amount, you will still receive a bill each month showing what you owe; the automatic payment will cover only the amount you selected, and you will need to pay any remaining balance manually.

You can pause or cancel automatic payments at any time through your online account. If you cancel, you will return to manual payment, so set a reminder to pay your bill by the due date.

Payment centers and in-person payment

National Grid operates payment centers in New York, Massachusetts, and Rhode Island where you can pay in person with cash, check, or debit card. Locations and hours vary by state. Find the nearest payment center by visiting the National Grid website, entering your zip code, and selecting "Payment Locations."

In-person payments are processed when ready, and you receive a receipt on the spot. This option is useful if you do not have a bank account, prefer not to pay online, or need to may support your payment is received before a specific date.

Some National Grid payment centers are located inside partner businesses like grocery stores or check-cashing services. Call ahead to confirm hours and accepted payment methods before you visit.

What to do if you miss the due date

If your payment arrives after the due date, National Grid will charge a late fee. The amount of the late fee varies by state and utility but is typically a percentage of your bill or a flat amount. Check your bill or the National Grid website for your state's late fee policy.

If you have missed a payment, pay as soon as possible through any available method. Online and phone payments process the same day, so use those if you need the payment recorded quickly. A late payment will remain on your account record, but paying promptly prevents your service from being disconnected.

If you are struggling to pay your bill, contact National Grid's customer service to ask about budget billing, payment plans, or hardship programs. These options may help you spread your payments over time or reduce your monthly amount.

Frequently Asked Questions

Can I pay my National Grid bill with a credit card online?

Yes, National Grid accepts credit cards on their website and mobile app. Credit card payments process the same day but may include a small convenience fee that varies by card type. The fee will appear before you confirm the payment. Bank account payments have no fee and are the lowest-cost option.

What time do online payments need to be submitted to process the same day?

Online payments submitted before 5 p.m. Eastern process the same day. Payments submitted after 5 p.m. Eastern will process the next business day. Phone payments have a later cutoff of 8 p.m. Eastern.

How do I know if my payment went through?

You will receive a confirmation number when ready after you submit payment online or by phone. Save this number as your receipt. You can also log into your National Grid account online to see your payment history and confirm the payment appears on your account within one business day.

Can I pay someone else's National Grid bill?

Yes, you can pay another person's bill if you have their account number. Enter their account number when you make the payment online or by phone. The payment will be applied to their account. If you are paying by mail, include the account number on your check so the payment is routed correctly.

What should I do if I think my payment was lost in the mail?

Contact National Grid customer service with your confirmation number or check number. They can search their records to see if the payment was received. If the payment was not received, you can stop payment on the check through your bank and submit a new payment online or by phone to may support it is processed when ready.