How to Pay Your Nicor Gas Bill Online, by Phone, or Mail

Nicor Gas offers four main ways to pay your bill: online through their website, by phone, by mail, or in person at a payment center

Nicor Gas is the natural gas utility serving northern Illinois. When your bill arrives, you have choices about how and when to send payment. The fastest and most convenient route for most people is online through Nicor's website or mobile app, which processes payments the same day. If you prefer not to use the internet, you can call their payment line, mail a check, or visit a payment location in person.

Each method has different timing — some payments post when ready, others take a few business days. Knowing which method works for your situation helps you avoid late fees and keeps your service active.

Key Takeaways

• Online payments through Nicor's website or app process the same day and are the fastest way to pay if you have a bank account or debit card.
• Phone payments go through the automated system at 1-888-642-6467 or with a representative, and take one business day to post.
• Mailed checks should arrive at least five business days before your due date to avoid late fees, since mail delivery varies.
• Nicor charges a fee for some payment methods — online and phone payments are free, but third-party payment processors may charge a convenience fee.
• Your account number appears on your bill and is required for all payment methods except online if you have registered an account.

Paying online through Nicor's website or app

The Nicor Gas website at nicorgas.com has a "Pay My Bill" section where you can log in with your account number and password, or create a new online account if you do not have one. Once logged in, you enter the amount you want to pay and choose your payment method — bank account (ACH transfer) or debit card. The payment posts the same day you submit it, usually within a few hours.

Nicor also offers a mobile app available on iOS and Android. The app works the same way as the website and is useful if you want to pay on your phone without opening a browser. Both the website and app are free to use — Nicor does not charge a fee for online payments made directly through their system.

If you do not have a bank account or debit card, or if you want to use a credit card, you can use a third-party payment processor through Nicor's website. These processors charge a convenience fee (usually 2 to 3 percent of your payment) that you pay on top of your bill amount. The fee is optional — you can choose to pay it or use a different method instead.

Paying by phone

Nicor's automated phone payment system is available 24 hours a day at 1-888-642-6467. You will need your account number and a bank account or debit card. The system walks you through the steps and confirms your payment before it processes. Payments made through the automated system are free and take one business day to post to your account.

If you prefer to speak with a representative, you can call the same number during business hours (usually 7 a.m. to 7 p.m. Monday through Friday, and 8 a.m. to 5 p.m. Saturday). A representative can take your payment over the phone and answer questions about your bill. These payments also take one business day to post and are free.

Paying by mail

You can mail a check or money order to the address printed on your bill. Include your account number on the check so Nicor can match the payment to your account. Mail payments take longer to process because of delivery time — you should mail your payment at least five business days before your due date to make sure it arrives on time and avoids a late fee.

The exact mailing address varies depending on where you live within Nicor's service area. Always use the address on your bill rather than looking up a general corporate address, because payments sent to the wrong location will be delayed.

Paying in person at a payment center

Nicor has payment centers in some locations where you can pay in person with cash, check, or debit card. Payment centers are usually located in grocery stores, pharmacies, or utility payment offices. You can find the nearest location by calling 1-888-642-6467 or checking Nicor's website.

In-person payments typically post within one business day. This method is useful if you do not have a bank account or prefer to pay with cash, but it requires you to travel to a payment center during their hours of operation.

Understanding payment timing and due dates

Your bill shows a due date — this is the date by which Nicor must receive your payment to avoid a late fee. Different payment methods reach Nicor at different times. Online and phone payments post the same day, so if you pay before midnight on your due date, you are on time. Mail and in-person payments take one to five business days, so you need to send or deliver them earlier.

If your payment does not arrive by the due date, Nicor may charge a late fee and may eventually disconnect your service if the account falls too far behind. If you are having trouble paying your bill, contact Nicor directly to discuss payment plans or hardship programs — many utilities offer options to spread payments over time or reduce bills for customers in financial difficulty.

Avoiding common payment mistakes

The most common mistake is mailing a check too close to the due date. Mail delivery is not may provide to arrive on a specific day, so a check mailed two days before the due date might arrive after the important date. Mail your payment at least five business days early to give it time to travel and be processed.

Another mistake is entering the wrong account number or address. Double-check your account number on your bill before you pay, especially if you are paying by phone or mail. If the payment goes to the wrong account, it may not post to your bill and you could be marked late.

If you use a third-party payment processor and are surprised by a convenience fee, remember that this fee is optional. You can avoid it by paying directly through Nicor's website, app, or phone system instead.

Frequently Asked Questions

What if I miss my due date?

Contact Nicor as soon as possible. Late fees are usually charged after the due date passes, and your service can be disconnected if the account falls significantly behind. Nicor may offer a payment plan to help you catch up, or you may be able to negotiate a later payment date.

Can I set up automatic payments?

Yes. Through Nicor's online account, you can set up recurring payments from your bank account on a date you choose each month. This ensures your bill is paid on time without you having to remember to pay manually each month.

Is there a fee for paying online or by phone?

No. Nicor does not charge a fee for payments made directly through their website, app, or phone system. Third-party payment processors may charge a convenience fee, but you can avoid this by using Nicor's own payment methods.

What happens if I overpay my bill?

The overpayment becomes a credit on your account and is applied to your next bill. If you have a large credit balance, you can contact Nicor to request a refund instead.

Can I pay someone else's Nicor bill?

Yes, but you will need their account number. You can pay online, by phone, or by mail using their account number. The payment will post to their account, not yours.