Discover Card payments can be done online for customers who have an account on the Discover website (Discover.com). Customers can make up to two online payments per day for their Discover Card, but the payments must come from different bank accounts.
Customers with a Discover online account can record up to eight bank accounts per online account. Payments made online can be edited before 5 p.m. EST on the day the payment was made for the change to go into effect. The deadline for online Discover Card payments is 5 p.m. EST on the date that the bill is due. Any payment made after this time can result in late fees.