Visit Sprint.com and click Sign In, log into a valid Sprint account, and click Pay Now from the Your Bill section of the site. Enter the dollar and cent amount of the payment, then select the type of payment you want to make. Click Submit to process the payment.
Sprint accepts bank, ATM, debit, credit and American Express Prepaid Reward card payments. Click Add an Account or Add a Card, then provide the requested information about the payment source. Bank account payments require the account owner's name, routing number and account number. Card payments require the card number, expiration date, zip code and security code.