Log in to your Comcast account to pay your bill
Go to xfinity.com and click "Sign In" in the top right corner. Enter your Comcast username (or the phone number, email, or account number associated with your account) and your password. If you have not set up an online account yet, you will need to create one first by clicking "Create Account" — Comcast will ask for your service address and account number to verify you.
Once you are signed in, your bill and payment options appear on your account dashboard. You do not need to navigate to a separate payment page; the amount due and due date are visible when ready. From there, you can pay in full, pay a partial amount, or set up automatic payments.
If you forget your password, click "Forgot username or password?" on the sign-in page. Comcast will send a reset link to your email or phone number on file. The link expires after a few hours, so check your email and spam folder right away.
Key Takeaways
- Visit xfinity.com and sign in with your username, phone number, email, or account number and your password.
- Your bill amount and due date appear on your dashboard as soon as you log in.
- You can pay in full, pay a partial amount, or set up automatic monthly payments from your account page.
- Comcast accepts payment by debit card, credit card, or bank account transfer.
- If you do not have an online account, create one using your service address and account number.
Pay your bill after you log in
After signing in, look for your bill summary on the main dashboard. Click the "Pay Bill" button or link next to your amount due. A payment screen will open where you enter the amount you want to pay and choose your payment method.
Comcast accepts debit cards, credit cards, and bank account transfers. If you are paying by card, enter the card number, expiration date, and CVV. If you are paying by bank account, you will need your routing number and account number. Comcast processes most payments the same day if submitted before 8 p.m. Eastern Time; payments submitted after that time post the next business day.
After you submit payment, Comcast displays a confirmation number on screen. Write this down or take a screenshot — you will need it if you need to contact Comcast about the payment later. A confirmation email also arrives within a few minutes.
Set up automatic payments so you do not miss a due date
Automatic payments remove the step of logging in each month. From your account dashboard, click "Billing" or "Payment Methods," then select "Automatic Payments" or "Auto Pay." Comcast will ask you to choose a payment method (debit card, credit card, or bank account) and the day of the month you want the payment to come out.
You can choose any day between the 1st and the 28th. If you choose a date after the 28th, Comcast will process the payment on the last day of the month instead. The payment amount is the full bill amount each month, not a fixed dollar amount — so if your bill changes, the payment adjusts automatically.
You can pause or cancel automatic payments at any time from the same menu. Changes take effect within one or two billing cycles, so if you cancel close to your due date, you may still see one more automatic charge post before it stops.
What to do if you cannot sign in
If you enter your username and password and see an error message, first check that Caps Lock is off and that you are typing your password correctly. Passwords are case-sensitive. If you are still locked out, use the "Forgot username or password?" link to reset your password.
If you do not remember your username, Comcast can send it to your email or phone number on file. You can also call Comcast customer service at 1-800-COMCAST (1-800-266-2278) and provide your account number or service address to have them reset your login or send you a temporary password.
If you have never created an online account, you will see a message asking you to set one up. Click "Create Account" and enter your service address and account number. Comcast will send a verification code to your email or phone — enter that code to complete setup. This usually takes fewer than five minutes.
Pay your bill without logging in
If you do not want to create an online account, you can still pay by phone or mail. Call 1-800-COMCAST to pay over the phone with a debit card, credit card, or bank account. A representative will ask for your account number and payment method and process the payment while you are on the call.
To pay by mail, write a check or money order payable to Comcast and include your account number on the check. Mail it to the address printed on your bill — this address changes depending on your region, so always use the one on your statement. Mail payments take 7 to 10 business days to post.
You can also pay in person at a Comcast service center if one is near you. Find locations at xfinity.com/locations. Bring your account number and payment method (cash, check, debit card, or credit card).
Understand what happens after you pay
Comcast updates your account balance within a few hours of processing your payment, though it may take up to one business day for the payment to show on your bill. If you paid online or by phone before 8 p.m. Eastern Time, the payment posts the same day. If you paid after 8 p.m. or on a weekend, it posts the next business day.
You will receive a confirmation email with your payment amount, confirmation number, and the date it posted. Keep this email for your records. If you set up automatic payments, you will get a confirmation email each month on the day the payment processes.
If you overpay your bill, Comcast holds the credit on your account and applies it to your next bill. You can request a refund by calling customer service, though refunds typically take 7 to 10 business days to arrive.
Frequently Asked Questions
Can I pay my Comcast bill with a prepaid card?
Yes, as long as the prepaid card is Visa, Mastercard, American Express, or Discover. Comcast treats prepaid cards the same as regular debit or credit cards. You will need the card number, expiration date, and CVV to complete the payment online.
What if my payment fails or is declined?
Comcast will send you an email or text message explaining why the payment did not go through — usually because the card was declined, the card expired, or the billing address did not match. Log back in and try again with a different payment method, or call 1-800-COMCAST to pay over the phone.
Can I see my payment history after I log in?
Yes. From your account dashboard, click "Billing" or "Payment History" to see all payments you have made in the past 12 months, including the date, amount, and confirmation number. You can also read or print this history from the same page.
How do I change my automatic payment date or payment method?
Log in to your account, go to "Billing" or "Payment Methods," and click "Automatic Payments." You can change the payment date, update your card or bank account, or pause the service. Changes take effect within one or two billing cycles.
What if I want to pay only part of my bill?
When you click "Pay Bill" after logging in, you can enter any amount less than your full balance. Comcast will explore the partial payment to your account, and the remaining balance will be due on your next due date. Partial payments do not change your due date or billing cycle.