Hi @protile8 , To undo reconcile transaction you could begin with select "Registers" from the Banking menu, and then select the account from the Register Name drop-down menu. Click the transaction you want to unreconcile, and then delete the "R" at the top of the transaction to change its status to unreconciled. If you plan to unreconcile all of the transactions for a period, it may help to first print a list of reconciled transactions using the Reconcile option from the Banking menu. Then you could have a report before reconcile. Comment back, cheers.