Then you will need to void the old check and note in the memo line the check number you are replacing it with. If the “customer” does not have the check, you will need to re-write the check and send it to them. Try contacting them to see if they have received the check. Whatever the reason, it is important to clean any checks that should be cleared off your books in order to make sure you are not overstating your cash balance.įirst, you need to determine if the money is still owed to the customer/client/donor. There are a number of reasons why you may have old, uncleared checks on your books. How to Clean Up Old, Uncleared Checks in QuickBooks