Account Reconciliation Working Paper

Account reconciliation is often treated as a simple accounting routine:

Compare two balances. Find the difference. Make them match.

But a good reconciliation should do much more than that.

A difference between the General Ledger and its supporting records can reveal timing issues, unrecorded transactions, cut-off errors, incorrect classifications, calculation problems, weak closing controls, or even unauthorized transactions.

The objective is not simply to make the difference become zero.

The objective is to understand:

Why does the difference exist — and what risk does it represent?

That is where account reconciliation becomes an assurance tool.

Understand the Account

Before reconciling anything, understand what the account represents.

Ask:

• What transactions normally flow through this account?
• What should the balance represent?
• Which system or subledger supports it?
• Who owns the account?
• How frequently should it be reconciled?
• What could cause the balance to be misstated?

Without understanding the account, reconciliation can easily become a mechanical matching exercise.

Obtain and Compare the Balances

Start with the General Ledger balance and compare it against an appropriate independent or supporting record.

Depending on the account, this could include:

• Accounts receivable subledger
• Accounts payable subledger
• Bank statement
• Fixed asset register
• Inventory records
• Accrual schedule
• Prepayment schedule
• Payroll records
• Intercompany confirmation
• Other supporting schedules

Calculate the difference and identify which accounts require further investigation.

But remember:

A difference is only the starting point.

Identify the Reconciling Items

Break the difference into individual reconciling items.

Common examples include:

• Timing differences
• Unrecorded transactions
• Cut-off differences
• Classification errors
• Calculation errors
• Foreign exchange differences
• Outstanding transactions
• Accrual or estimate differences
• System interface issues

Each reconciling item should explain part of the gap between the two balances.

If the reconciliation still contains an unexplained amount, the account is not fully reconciled.

Investigate the Root Cause

An explanation alone is not sufficient.

If management says:

“It is only a timing difference.”

The next question should be:

What evidence demonstrates that?

Validate reconciling items using relevant supporting evidence such as invoices, bank statements, transaction logs, system records, contracts, calculations, subledger extracts, or subsequent clearing.

Then go one level deeper.

Ask why the reconciling item occurred.

Was it normal processing timing?

Or was it caused by:

• A missed journal entry?
• Weak month-end closing procedures?
• Incorrect system configuration?
• Poor account mapping?
• Manual processing errors?
• Inadequate review?
• A control breakdown?

This distinction matters.

Because two identical differences can represent very different risks.

Assess the Related Risk

Once the cause is understood, assess the potential impact.

Consider financial statement assertions such as:

• Existence
• Completeness
• Accuracy
• Valuation
• Classification
• Cut-off

But also consider the underlying control implications.

A small recurring difference caused by a broken process may deserve more attention than a larger legitimate timing difference.

Risk assessment should therefore consider both:

Magnitude + Nature of the Difference

This helps determine whether an item requires adjustment, additional testing, process improvement, or escalation.

Document and Conclude

A strong reconciliation should clearly demonstrate:

• What account was reconciled
• What records were compared
• What differences were identified
• What caused those differences
• What evidence was obtained
• Whether an adjustment is required
• What risks were identified
• Who owns the follow-up
• When open items should be resolved
• Whether the account can ultimately be considered reconciled

An account should not be marked “reconciled” simply because someone prepared a spreadsheet.

It should be considered reconciled when the balance is understood, differences are supported, material exceptions are resolved, and remaining items are appropriately assessed.

Inside Assurance Toolkit #04 — Account Reconciliation Working Paper

This toolkit provides a practical working paper covering:

• Account reconciliation
• Reconciling item investigation
• Supporting evidence
• Root cause analysis
• Proposed adjustments
• Risk assessment
• Reconciliation conclusion
• Management dashboard
• Open-item monitoring

It also includes a practical scenario covering timing differences, unrecorded transactions, cut-off issues, classification differences, and accounting estimates.

The objective is to move reconciliation from:

Balance Matching → Difference Identification → Investigation → Risk Assessment → Conclusion

Because reconciliation should not only answer:

“Do these two numbers match?”

It should help us understand:

“Can we explain and support the balance — and what does it tell us about the underlying process?”

That is the difference between performing a reconciliation and obtaining assurance from it.

Beyond the numbers. Inside the business.

Inside Assurance