How to pay Green Mountain Energy online, by phone, or by mail
Green Mountain Energy customers can pay their bill through the company's website, by phone, through automatic bank withdrawals, or by mailing a check. The fastest method is online through your account on greenmountainenergy.com, where payment posts within one business day. If you prefer not to use the website, you can call their payment line, set up autopay to avoid missing due dates, or send a check to the address printed on your bill.
Your bill shows a due date, usually 20 to 25 days after the bill date. Paying by the due date keeps your account in good standing and avoids late fees. If you are having trouble paying the full amount, Green Mountain Energy offers payment plans and hardship programs that you can discuss by calling their customer service line.
Key Takeaways
- Online payment through greenmountainenergy.com is the fastest method and posts within one business day.
- You can pay by phone at Green Mountain Energy's customer service number, which appears on your bill.
- Setting up automatic payments from your bank account ensures you never miss a due date.
- Mailing a check is an option, but allow 7 to 10 days for the payment to reach and post to your account.
- If you cannot pay the full amount by the due date, contact Green Mountain Energy to discuss payment plan options.
Paying online through your Green Mountain Energy account
Log into your account at greenmountainenergy.com using your username and password. If you do not have an online account, you can create one by entering your account number (found on your bill) and other identifying information. Once logged in, look for the "Pay Bill" or "Make a Payment" button, usually displayed prominently on your account dashboard.
Enter the amount you want to pay — you can pay the full bill amount or a partial payment. Choose your payment method: debit card, credit card, or bank account. Green Mountain Energy may charge a small fee if you pay by credit card, but bank account payments typically have no fee. Review the payment details, confirm the amount and due date, and submit. You will receive a confirmation number when ready, and the payment will post to your account within one business day.
Paying by phone or setting up automatic payments
To pay by phone, call the customer service number on your bill. A representative will ask for your account number and the amount you want to pay, then guide you through entering your payment method. Phone payments post within one to two business days. This method works if you do not have internet access or prefer speaking with someone directly.
Automatic payments (autopay) deduct your bill amount from your bank account on a date you choose, usually around your due date. Set up autopay through your online account or by calling customer service. Once enrolled, your payment happens automatically each billing cycle, which removes the risk of forgetting a due date. You can change or cancel autopay at any time through your account or by calling customer service.
Paying by mail or in person
To pay by mail, write a check or money order payable to Green Mountain Energy. Write your account number on the check. Mail it to the payment address shown on your bill — do not send payment to the company's main office address unless your bill specifically directs you to do so. Allow 7 to 10 business days for the check to arrive and post to your account.
Green Mountain Energy does not operate walk-in payment centers, so mailing or online payment are your options if you do not want to pay by phone. If you need to make a same-day payment and cannot use the website, call customer service to discuss your options.
What happens if you miss the due date
If your payment does not arrive by the due date shown on your bill, Green Mountain Energy will charge a late fee. The amount varies, but late fees are typically a percentage of your bill or a flat amount — check your bill or account for the exact fee structure. A late payment also appears on your account history and may affect your credit if the account is reported to credit bureaus.
If you know you will miss a due date, contact Green Mountain Energy before the date passes. They may be able to extend the due date, set up a payment plan, or discuss other options. Calling ahead is much better than letting the account fall past due, because it shows good faith and keeps more options open.
Payment plans and hardship programs
If you cannot pay your bill in full, Green Mountain Energy offers payment plans that spread the amount over several months. To set up a payment plan, call customer service and explain your situation. They will work with you to create a schedule that fits your budget. Payment plans typically require you to pay on time each month to stay in the program.
Some customers may also be may be able to access for energy bill information programs run by state or local agencies. These programs are separate from Green Mountain Energy but can help cover part of your bill. Customer service can direct you to resources in your area, or you can search for "energy information" plus your state name to find programs near you.
Frequently Asked Questions
How long does it take for my online payment to show up?
Online payments through greenmountainenergy.com typically post within one business day. If you pay after 5 p.m. on a weekday or on a weekend, it may take until the next business day to appear. Check your account the next day to confirm the payment posted.
Can I pay my Green Mountain Energy bill with a credit card?
Yes, you can pay by credit card online or by phone. Green Mountain Energy may charge a convenience fee (usually 2 to 3 percent) when you use a credit card. Paying by bank account or debit card typically has no fee, so compare your options before choosing.
What if I pay online but the payment does not post by my due date?
If you submit payment online before the due date, it counts as on-time even if it takes a day or two to post. However, if you submit payment after the due date has passed, it will be considered late. Pay at least one business day before your due date to be safe.
Can I set up autopay and then cancel it later?
Yes, you can cancel autopay at any time through your online account or by calling customer service. There is no penalty for canceling. If you cancel, you will need to make manual payments going forward, so mark your due dates on a calendar to avoid missing them.
What should I do if I cannot afford my bill?
Call Green Mountain Energy customer service to discuss payment plans or hardship programs. They can spread your bill over multiple months or connect you with local energy information programs that may help cover part of your cost. Do not ignore the bill — reaching out early gives you more options.