The interest rates that Key Bank offers on certificates of deposit range from 0.499 to 1 percent, as of March 2015. These rates vary depending on account balance and type of certificate of deposit.
A Key Bank certificate of deposit earns a higher interest rate if the deposit amount is $10,000 or above. CD terms range anywhere from six months to 10 years, and the interest the CD earns compounds every day. Activating automatic renewal of the CD at the end of its term guarantees uninterrupted interest earning for the account. Once the account is open and funded, the terms and rates typically cannot be changed.