To pay a Capital One credit card bill online as of 2015, enroll in online banking with Capital One and set up a bank account as a funding source. Log in to your account, go to the Payments menu and click Make a One-Time Payment. Select the credit card account for the payment, the payment amount and the payment date, and submit it to complete the payment. Capital One also offers loans that you can also pay online.
To access Capital One's online service, visit the CapitalOne.com homepage and click Sign In. Click Personal, Business or Commercial, depending on the type of account you have. For bill payments, you must click Sign Up if you haven't set up an online account yet. If you have, click Sign In to log in to your account using your user name and password. For credit cards, the sign up process requires your credit card number, Social Security number, email address and the credit card's security code.
After enrolling in online banking, add your funding source with your bank account number and the bank's routing number. Capital One's autopay feature is another option if you don't want to schedule one-time payment. With autopay, you set up a date every month when Capital One automatically deducts your monthly payment from your bank account.