National Grid's online payment portal is the fastest way to pay, but you can also mail a check or pay by phone if that works better for you
National Grid operates the electricity and natural gas systems across New York, Massachusetts, and Rhode Island. To pay your bill, you log into your account on the National Grid website, use their automated phone system, mail a check to the address on your bill, or set up automatic payments from your bank account. Each method takes a different amount of time and carries different risks — knowing which one fits your situation saves you from late fees and service interruptions.
The method you choose depends on how much control you want, how quickly you need the payment to post, and whether you prefer to keep a paper record. Online payment is instant and leaves a digital receipt. Mailing takes 7 to 10 business days. Automatic payments remove the task entirely but require you to monitor your account to catch billing errors before the money leaves.
Key Takeaways
- You can pay online at nationalgridus.com by logging into your account, selecting the payment amount, and confirming your payment method in one session.
- Mailed checks should be sent to the address printed on your bill and take 7 to 10 business days to post, so mail early if your due date is soon.
- Automatic payments from your bank account eliminate the need to remember due dates but require you to review your bill each month for errors.
- National Grid's phone payment line accepts debit cards and bank account information but charges a fee for credit card payments.
- Late payments trigger a reconnection fee and can result in service shutoff after 30 days of non-payment, so prioritize paying before the due date on your bill.
Paying online through your National Grid account
Go to nationalgridus.com and select "Pay My Bill" from the homepage. You will be asked to log in with your account number and password, or to create an account if you do not have one yet. Your account number appears on the top right of your paper bill or in any email National Grid sends you about your account.
Once logged in, you will see your current balance and due date. Select the amount you want to pay — you can pay the full balance, the minimum, or a custom amount. Then choose your payment method: debit card, bank account (checking or savings), or credit card. National Grid does not charge a fee for debit or bank account payments, but credit card payments incur a fee of around 2.5 percent of the amount paid, which National Grid displays before you confirm.
After you submit the payment, the system shows you a confirmation number immediately. Write this down or take a screenshot. The payment posts to your account within one business day for bank account transfers and the same day for debit cards. You can check the status of your payment by logging back into your account and viewing your payment history.
Setting up automatic payments from your bank account
Automatic payments remove the risk of forgetting a due date, but they work best if you review your bill each month before the payment goes through. To set up autopay, log into your National Grid account, go to "Billing & Payments," and select "Enroll in AutoPay." Choose whether you want to pay the full balance each month or a fixed amount, and select the date you want the payment to leave your account.
National Grid recommends choosing a date a few days before your due date, which gives you time to spot a billing error and contact them before the money is withdrawn. If your bill amount changes significantly — for example, if you move or your usage spikes — the autopay will still process the amount you set, so you may end up with a credit or a new balance the following month.
You can cancel autopay at any time by logging into your account or calling National Grid's customer service line. If you need to pause it temporarily, you can do that through your account settings without canceling entirely.
Paying by phone or through an automated system
National Grid's phone payment line is available 24 hours a day. Call the number on your bill — it varies by region — and follow the prompts to enter your account number and the amount you want to pay. You can pay with a debit card or by authorizing a withdrawal from your checking or savings account. Credit card payments over the phone incur the same fee as online credit card payments.
The automated system confirms your payment immediately and provides a confirmation number. Write it down. The payment posts within one business day. If you prefer to speak with a representative, you can stay on the line after the automated prompts, but wait times vary by time of day and season — winter months are busier because more people are paying heating bills.
Mailing a check or money order
The mailing address for your payment appears on your bill. Write your account number on the check or money order, and mail it at least 10 business days before your due date to account for postal delays. National Grid processes mailed payments in the order they arrive, so there is no way to expedite a check once it is in the mail.
Keep a copy of the front and back of your check for your records. If you are concerned the payment did not arrive, wait two weeks after mailing, then log into your account online to check whether it has posted. If it has not, call National Grid's customer service line with the check number and amount, and they can search their records.
Money orders are safer than personal checks if you are worried about account information being exposed, but they cost $1 to $2 each and take the same amount of time to process as a check.
What happens if you miss a due date
Your bill shows a due date, usually 20 to 25 days after the bill is issued. If you do not pay by that date, National Grid adds a late fee to your next bill — the amount varies by state but is typically 1 to 1.5 percent of the unpaid balance. You will also receive a notice in the mail warning you that your account is past due.
If you do not pay within 30 days of the due date, National Grid can shut off your service without further notice. Before that happens, you should contact their customer service line to discuss a payment plan or hardship program if you are unable to pay the full amount. Some states have rules that prevent shutoffs during winter months for heating customers, but these vary — check your state's utility commission website to learn what protections apply to you.
Once service is shut off, you must pay the full past-due balance plus a reconnection fee (typically $50 to $150, depending on your state) to have power or gas restored. Reconnection can take 24 to 48 hours even after payment is received.
Choosing the right payment method for your situation
If you have a stable income and want the simplest approach, automatic payments save time and reduce the risk of late fees. If your bill amount varies significantly month to month or you prefer to review each charge before paying, online payment or phone payment gives you that control without the delay of mailing a check.
If you do not have internet access or a bank account, mailing a check or money order is your option, but plan ahead because of the 7 to 10 day processing time. If you are struggling to pay your full bill, contact National Grid before the due date — many states have programs that help low-income households with utility costs, and National Grid can refer you to local resources.
Frequently Asked Questions
Can I pay my National Grid bill with a credit card online?
Yes, but National Grid charges a fee of approximately 2.5 percent of the amount you pay when you use a credit card. Debit cards and bank account transfers have no fee. If the fee is a concern, use a debit card or bank account instead.
How long does it take for an online payment to show up on my account?
Debit card payments post the same day. Bank account payments post within one business day. Mailed checks take 7 to 10 business days. You can check the status by logging into your account and viewing your payment history.
What should I do if I cannot pay my full bill by the due date?
Call National Grid's customer service line before the due date and ask about payment plans or hardship programs. Many states have assistance programs for households with low income. National Grid can refer you to local resources and may be able to delay shutoff while you arrange help.
Can I set up automatic payments for a specific amount each month?
Yes. When you enroll in AutoPay through your account, you can choose to pay the full balance each month or a fixed amount. If you choose a fixed amount, you may end up with a credit or a new balance depending on your actual usage that month.
What is the reconnection fee if my service gets shut off?
Reconnection fees vary by state but typically range from $50 to $150. You must pay the full past-due balance plus the reconnection fee to restore service, which usually takes 24 to 48 hours after payment is received.