Log into your Nicor account through the main website
Go to nicorgas.com and look for the login section in the upper right corner of the page. Click "Log In" to reach the customer portal. If you do not have an online account yet, you will see an option to create one — you will need your account number (found on your bill) and the zip code associated with your service address.
Once you are logged in, your account dashboard shows your current balance, usage history, and payment options. The portal works on desktop, tablet, and mobile browsers, so you can access it from any device with internet connection.
If you forget your password, select "Forgot Password" on the login page. Nicor will send a reset link to the email address on file. Check your spam folder if the email does not arrive within a few minutes.
Key Takeaways
- You can pay your Nicor bill online through nicorgas.com, by phone at 1-888-642-6748, or by mail using the payment coupon on your bill.
- Online payments typically post to your account within one business day, while phone and mail payments take longer.
- Setting up automatic payments through your bank account or debit card prevents missed due dates and requires only a few minutes to configure.
- Your account number appears on your bill and is required to create an online login or make a payment over the phone.
Pay your bill after logging in
Once you are in your account, select "Pay My Bill" or "Make a Payment" — the exact wording varies slightly depending on when Nicor last updated the website. You will see your current balance and the due date. Choose whether to pay the full amount or a partial payment.
Select your payment method: bank account (ACH transfer), debit card, or credit card. Bank account payments are free. Debit and credit card payments carry a fee that Nicor discloses before you confirm the transaction — typically between $1 and $3 depending on the card type. Enter the payment amount, review the details, and submit.
You will receive a confirmation number immediately. Nicor sends a receipt email to the address on file. Keep the confirmation number in case you need to reference the payment later.
Set up automatic payments to avoid late fees
Automatic payments deduct your bill amount from your bank account or card on a date you choose each month. This prevents accidental late payments and removes the need to log in repeatedly. From your account dashboard, look for "Autopay," "Auto Pay," or "Recurring Payments" — the menu label depends on the current portal design.
You can set the payment date to any day between the 1st and the 28th of the month. Nicor recommends choosing a date after you receive your paycheck but before the due date shown on your bill. You can change or cancel automatic payments at any time through the same menu.
If you set up autopay using your bank account, there is no transaction fee. If you use a debit or credit card, Nicor charges a fee each month, so bank account autopay is the lower-cost option.
Pay by phone if you cannot access the website
Call Nicor's automated payment line at 1-888-642-6748. You will need your account number and a debit card or bank account information. The system accepts payments 24 hours a day, 7 days a week. Payments made before 5 p.m. Central Time typically post the same business day; payments after 5 p.m. post the next business day.
If you prefer to speak with a representative, call the same number and select the option to speak with a customer service agent. Representatives are available Monday through Friday during business hours. A representative can also help you set up automatic payments or answer questions about your account.
Mail a check or money order if you prefer not to pay online
Your Nicor bill includes a payment coupon with a mailing address. Write your account number on the check or money order, include the coupon, and mail it to the address printed on the bill. Mail payments typically take 7 to 10 business days to reach Nicor and post to your account, so send your payment well before the due date to avoid late fees.
Do not mail cash. If you do not have the payment coupon, you can call 1-888-642-6748 to request the mailing address, or look it up on nicorgas.com under "Pay Your Bill."
Understand what happens if you miss a payment
If your bill is not paid by the due date, Nicor charges a late fee. The amount varies but is shown on your bill. After 10 days past the due date, Nicor may send a disconnect notice warning that service will be shut off if payment is not received within a specified timeframe — usually 10 to 15 additional days.
If you cannot pay the full amount by the due date, contact Nicor immediately at 1-888-642-6748. Customer service representatives can discuss payment arrangements or connect you with hardship programs if you may have access to. Acting before the disconnect notice arrives gives you more options.
Troubleshoot common login and payment problems
If you see an error message when trying to log in, clear your browser's cache and cookies, then try again. If the problem persists, try a different browser or device. Some older browsers do not work with Nicor's website.
If a payment you made does not appear in your account within two business days, log back in and check the transaction history or payment confirmation page. If the payment still does not show, call 1-888-642-6748 with your confirmation number. A representative can look up the payment and tell you when it will post.
If you see a charge on your card or bank statement but Nicor's website does not show the payment, do not make another payment. Contact customer service instead — duplicate payments happen occasionally and can be reversed.
Frequently Asked Questions
Can I pay my Nicor bill without creating an online account?
Yes. You can pay by phone at 1-888-642-6748, by mail using the coupon on your bill, or in person at a payment location listed on nicorgas.com. You will need your account number for any of these methods. Creating an online account is optional but makes it easier to track your balance and due dates.
Is there a fee to pay my Nicor bill online?
Bank account payments have no fee. Debit and credit card payments carry a fee of $1 to $3, which Nicor shows before you confirm the transaction. Phone and mail payments have no fee.
How long does it take for an online payment to show up?
Payments made before 5 p.m. Central Time typically post within one business day. Payments made after 5 p.m. post the next business day. Mail and phone payments take longer — usually 7 to 10 days for mail and 1 to 2 business days for phone.
What should I do if I forgot my account number?
Your account number appears on your Nicor bill. If you do not have a recent bill, call 1-888-642-6748 and provide your service address and name. A representative will give you the account number. You can also look it up on nicorgas.com if you have an existing online account.
Can I change my automatic payment date after I set it up?
Yes. Log into your account, go to the autopay or recurring payments section, and select a new date between the 1st and 28th of the month. Changes take effect on your next scheduled payment. If you need to stop autopay entirely, you can cancel it the same way.