Reconciliation

Definition

Reconciliation compares your internal records to an external source — most commonly a bank reconciliation matching your cashbook to the bank statement — and investigates any difference.

In plain terms

It is the safety check that your books reflect reality. Unreconciled accounts hide double payments, missed income and, occasionally, fraud.

Why it matters for your company

Lenders expect reconciled management accounts. Regular reconciliation is also the earliest place a cash flow problem shows up. See how to read management accounts.

In practice

Picture a UK limited company whose bookkeeper reconciles the current account against the cashbook at the end of each month. Most lines match instantly. A handful sit unmatched: a supplier payment cleared by the bank but not yet logged, a customer receipt sitting in the bank feed with no invoice reference attached, or a card payment duplicated because it was entered manually and then imported again.

Working through these differences is the actual task. Each unmatched line gets traced to its source document, corrected in the ledger, or flagged for follow-up with the bank or a supplier. Once every difference is explained, the closing balance in the books should equal the closing balance on the statement, and the reconciliation is signed off — usually by whoever prepares the management accounts that period.

Common pitfalls

The most frequent failure is treating reconciliation as a formality rather than an investigation — ticking off matched lines and leaving unexplained differences to roll forward untouched. Left long enough, small timing gaps compound into a figure nobody can explain, which slows down any review of the cash flow position.

A second pitfall is reconciling too infrequently. A company that only reconciles at year end has no early warning if a direct debit fails, a payment is duplicated, or a fraudulent transaction appears — by the time it surfaces, the paper trail has gone cold and the fix is far more disruptive than it would have been a few weeks earlier.