Discover Bank offers its Certificate of Deposit, or CD, interest rates on its website. From the Discover Bank main page, hover over Products, and click on CDs to find the current rates. For Individual Retirement Account, or IRA, CDs, hover over Products, and click on IRAs.
Discover Bank offers CDs for different lengths of time, from three months up to 10 years, and each period has its own interest rate. Use the slider handle on the page to select the desired maturity of the CD and to view the current interest rate. On the same page, enter your initial deposit to see the amount of earnable interest for every possible period. As of September 2015, the minimum deposit for a CD with Discover Bank is $2,500.