Balancing a checkbook can be a difficult process for a very large business, since it issues so many checks it can take a lot of human monitoring to understand which checks have not cleared and therefore what the company's true balance is. To address this, banks have developed a system which allows companies to upload a list of all the checks that they issue on a daily basis, so that at the end of the month the Bank statement will show not only which checks have cleared, but also which have not. More recently, banks have used this system to prevent checks from being fraudulently cashed if they are not on the list, a process known as Positive pay.
