Are you wondering what delayed credits in QuickBooks are? Delayed credit in QuickBooks is one of the ways that can track and record transactions. These credit cards are manually entered into the system later on. If there is a transaction on the account that has not been entered yet, then it will be listed as past due. QuickBooks allows transactions to be delayed for more than 30 days and up to 180 days. The timing of when these transactions are entered into the system depends on how many are waiting in a queue and how long it takes for the transactions to be processed.