Internal Audit and Month-End Closing Checklist

What a good one includes

• A day-by-day critical path timeline that clearly sequences task dependencies and establishes firm deadlines for every department.
• Detailed steps for reconciling all sub-ledgers, bank accounts, credit cards, and merchant accounts back to the general ledger to catch discrepancies early.
• A dedicated section for verifying recurring journal entries, prepaid expenses, accrued liabilities, and depreciation schedules to ensure accurate matching.
• A clear sign-off hierarchy that assigns ownership for preparing and reviewing each line item, maintaining necessary segregation of duties.
• An analytical review guide to compare current-month results against budgets and prior periods, prompting explanations for variances over a set threshold.
• Standardized file-naming conventions and centralized storage instructions to ensure all supporting schedules are immediately accessible for external auditors.

Common mistakes to avoid

• Neglecting to document the roll-forward of previous month balance sheet reconciliations, which leads to carrying over unresolved historical errors.
• Failing to enforce strict cutoff dates for accounts payable and receivable, resulting in late invoices distorting the monthly financial truth.
• Treating the checklist as a static document rather than a dynamic tool that must be updated whenever software workflows or team responsibilities change.
• Overlooking the segregation of duties by allowing the same team member to prepare, review, and approve high-risk journal entries.

Frequently asked questions