If you currently have a loan with Discover paying online is easy. Simply go to https://www.discover.com and login on the right at Secure Account Login. You can choose between:
Making a one time payment. Enrolling in Autopay from your checking account.
Please note that many banks and financial institutions offer a rate discount for enrolling in autopay (to reduce your interest expense and lower your monthly payment). Discover would have highlighted this option to you to get you into a lower interest rate when you got pre-qualified during your application process for your auto financing.
If you can’t pay online, you’ve also got the option to:
Pay your bill over the phone: Call 1-800-347-2683
Pay your bill through the mail: Send a check to Discover
Discover Financial Services
P.O. Box 6103
Carol Stream, IL 60197-6103