In online banking, after you download transactions, QuickBooks helps you match the transactions in it to the ones in QuickBooks.
However, when you start to reconcile your online account, the matched transactions are not marked as cleared in the Reconcile window. You can mark them as cleared as a group, since you have already reviewed them once.
To do this task
Begin the reconciliation as you usually would.
In the Reconcile window, click the Matched button to clear all the transactions in QuickBooks that you matched to downloaded ones.
Enter the Ending Date from the paper statement that you received from your financial institution, and then click OK.
Click Reconcile Now.
To remove the checkmark from a matched transaction, click it. The checkmark is cleared.
Troubleshoot reconcile problems
Handle differences between downloaded transactions and QuickBooks
Reconcile an account with your bank statement