What is reconciliation?

Reconciliation is the process of comparing two records that should agree, explaining every difference between them, and correcting the differences that turn out to be errors. In finance it usually means proving that a ledger balance agrees with an independent source, such as a bank statement, a supplier statement, a sub-ledger or another group company's books.

Why does reconciliation matter once agents act?

Reconciliation is how a finance team finds out whether its records are true, rather than merely balanced. Once agents are coding, matching and drafting entries, it becomes the check on the agents themselves. An agent's work shows up in the ledger; the reconciliation compares the ledger with something the agent did not write.

That makes reconciliation the place where finance agents build or lose trust. A reconciliation that clears cleanly month after month is evidence. One with a growing list of unexplained items is a warning, and it arrives before any report goes out. The argument is made in reconciliation is where finance agents earn trust and across AI agents for finance.

How does reconciliation work in practice?

The method is the same whatever the account:

• Pick the two records and the date: the ledger balance and the independent source.
• Agree the totals, or calculate the difference.
• Match items that appear in both.
• Explain the unmatched items: timing, error, missing entry or disagreement.
• Correct the errors with journals, and carry timing items forward with a note.
• Review and sign: a second person confirms the explanation holds.

The independent source varies. For a bank reconciliation it is the bank statement. For an intercompany reconciliation it is the other entity's books. For a balance sheet account such as accruals, it is a supporting schedule. Templates for the two most common are the bank reconciliation template and the balance sheet reconciliation template.

What does that look like in an example?

A charity reconciles its payroll liabilities account each month. The ledger shows 18,400 owed to the tax authority. The payroll report shows 18,400 deducted. They agree, so the account looks fine. But the reconciliation also compares the balance with the payment made after month end, which was 17,900. The agent explaining the difference finds one employee's deduction was recorded twice in payroll. A balanced ledger hid an error that only the comparison with the payment, an independent record, revealed.

How is reconciliation different from matching?

Matching pairs individual items: this receipt with that invoice, this bank line with that ledger entry. Reconciliation asks a bigger question: do the two records agree in total, and if not, can every difference be explained? You can match most items and still fail to reconcile, because the unmatched remainder is unexplained or because both records share the same error. Agents often do the matching; a reconciliation also needs the explanation and a reviewer's judgement that it holds.

Which related terms should you know?

• Reconciling item: a difference that is explained and carried, such as an uncleared payment.
• Suspense account: a holding account for items not yet identified, which should itself be reconciled to zero over time.
• Sub-ledger reconciliation: proving a sub-ledger total agrees with its control account.