Account with Journal Entries may not be deleted
Situation: You attempt to delete an account with a zero balance from the Chart of Accounts List. You receive the message: "An account with journal entries may not be deleted." This indicates that although the current balance is zero, there was activity and a non-zero balance at some time in the current or previous Fiscal Year.
Solution: You cannot delete the account at this time, but when you have had no balance or activity for six fiscal periods, you will be able to delete it.
Until you can delete it, if you don't want the account to appear on your Accounts List, you can mark the Inactive Account field in the Profile view of the Account Information window.
For more information see Delete an Account