Bank accounts
The ledger balance is agreed to the statement balance. Outstanding items are unpresented payments, deposits in transit, and bank lines we do not yet have a document for. A feed that “matches” inside the software is not the reconciliation. We still agree the closing figure to the statement, because feeds drop lines and duplicate them.
Transfers between your own accounts are ticked off on both sides. A transfer left as income on one account and unexplained on the other will inflate turnover. That is one of the first things we look for in a catch-up.