Where and how to pay your National Grid bill in Massachusetts
National Grid offers several ways to pay your Massachusetts electric or gas bill. You can pay online through your account, by phone, by mail, or in person at a payment location. The fastest and most convenient method for most people is online through the National Grid website or mobile app, where payment posts within one business day.
If you prefer not to use the internet, you can call National Grid's payment line at 1-800-752-6633 to pay by phone with a debit or credit card. Mail payments should be sent to the address printed on your bill — allow 7 to 10 business days for the payment to reach and post to your account. Some customers also have the option to pay in person at authorized payment centers, though these locations vary by area.
No matter which method you choose, have your account number ready. You can find it on your bill or in your online account. National Grid does not charge a fee for standard online or phone payments made directly through their system.
Key Takeaways
- Online and phone payments through National Grid post within one business day and cost nothing extra.
- Mail payments take 7 to 10 business days to post, so send them early if your due date is near.
- You can set up automatic recurring payments through your online account to avoid missing a due date.
- If you are behind on your bill, contact National Grid directly to discuss payment plans or hardship programs before your service is shut off.
Setting up automatic payments to avoid late fees
Automatic payments are the easiest way to ensure your bill is paid on time every month. Log into your National Grid account online, go to the payment settings or billing section, and select the option to set up automatic recurring payments. You can choose to pay the full bill amount or a fixed amount each month, and you can select which day of the month the payment should be taken from your bank account or card.
Once automatic payments are active, you will still receive your bill each month so you can review the charges. If your bill amount changes significantly, you can adjust or pause the automatic payment at any time. This method eliminates the risk of forgetting a due date and incurring a late fee.
Understanding your bill due date and late payment consequences
Your bill due date is printed on the front of your bill, usually 20 to 25 days after the bill is issued. If payment is not received by that date, National Grid will add a late fee to your next bill. The late fee is a percentage of your unpaid balance — the exact percentage varies but is disclosed on your bill.
If your payment is more than 30 days late, National Grid may issue a disconnection notice. This notice gives you a grace period (usually 10 days) to pay before service is shut off. If you receive a disconnection notice, contact National Grid immediately at 1-800-752-6633 to discuss your options. Many customers are unaware that National Grid offers payment plans and hardship programs that can prevent disconnection.
Payment plans and hardship programs if you fall behind
If you cannot pay your full bill by the due date, National Grid has programs designed to keep your service on while you catch up. A standard payment plan spreads your past-due balance over several months in addition to your regular monthly bill. To set up a payment plan, call 1-800-752-6633 and speak with a representative. You do not need to wait until you receive a disconnection notice — calling early gives you more options.
National Grid also administers the Low-Income Home Energy Assistance Program (LIHEAP), which provides grants (not loans) to help pay heating and cooling bills for households that meet income limits. LIHEAP is run by the state, but National Grid can direct you to your local administering agency. Additionally, if you are a senior, disabled, or facing a temporary hardship, ask about the Customer Assistance Program (CAP), which may reduce your rates or provide bill forgiveness.
These programs have income limits and other requirements, but they are worth exploring if your bill is a burden. National Grid's representatives can tell you whether you may be may be able to access and how to take the next step.
Reading your bill to understand what you are paying for
Your National Grid bill shows your usage in kilowatt-hours (for electric) or therms (for gas), the rate per unit, and the total charges. The bill also lists any taxes, delivery charges, and supply charges separately. Understanding these line items helps you spot errors and know where your money is going.
The delivery charge is what you pay National Grid for maintaining the poles, wires, and pipes that bring energy to your home. The supply charge is the cost of the energy itself. Both are regulated by the Massachusetts Department of Public Utilities, so you cannot shop for a different supplier — National Grid is your only option in your service area. However, you can reduce your bill by using less energy, and understanding your usage helps you identify where to cut back.
Disputing charges or reporting a billing error
If you notice an error on your bill — an incorrect meter reading, a charge you do not recognize, or a sudden spike in usage that does not match your habits — contact National Grid within 60 days of the bill date. Call 1-800-752-6633 or use the dispute tool in your online account. National Grid will investigate and send you a written response.
Do not ignore a bill you believe is wrong. Paying it does not waive your right to dispute it, but disputing it promptly creates a record and may prevent late fees or disconnection while the investigation is underway. If you believe the meter itself is faulty, you can request a meter test, though National Grid may charge a fee if the meter is found to be working correctly.
Frequently Asked Questions
What happens if I pay late but before the disconnection notice arrives?
Late fees will be added to your next bill, but your service will not be shut off as long as you pay before the disconnection notice is issued. Once a disconnection notice is sent, you have a grace period (usually 10 days) to pay the full past-due amount plus any fees to avoid service interruption.
Can I pay my bill with a credit card online without a fee?
National Grid does not charge a fee for payments made directly through their website or app using a debit card or bank account. If you use a third-party payment processor or credit card, that processor may charge a convenience fee. Always pay through National Grid's official channels to avoid extra charges.
How do I know if my payment posted to my account?
Log into your online account and check your payment history, or call 1-800-752-6633 to confirm. Online and phone payments post within one business day. Mail payments take 7 to 10 business days, so do not assume it has posted immediately after you send it.
What if I cannot afford my bill and do not think I may have access to for assistance?
Call National Grid at 1-800-752-6633 and explain your situation. Representatives can discuss payment plans, hardship programs, and other options even if you are unsure whether you meet income limits. It is worth asking before your bill becomes severely past due.
Can I change my due date to match my payday?
Yes. Log into your online account or call 1-800-752-6633 to request a due date change. National Grid will work with you to set a date that aligns with when you receive income, making it easier to pay on time.