No, you do not need to pay interest, but you will want to be upfront and overcommunicate with the employee what the error was, how you calculated the shortfall and what corrections have been made to make sure this does not happen again.
No, you do not need to pay interest, but you will want to be upfront and overcommunicate with the employee what the error was, how you calculated the shortfall and what corrections have been made to make sure this does not happen again.