Inventory Audit Essentials

This cheat sheet covers key considerations for auditing inventory, including audit strategy, substantive procedures, valuation methods, and risk assessment. It also touches upon revenue and receivables auditing, and related accounting standards.

Core Principles

Develop a tailored audit strategy for inventory based on materiality and business nature.
Identify and assess risks associated with different types of inventory and business operations.
Apply appropriate substantive procedures and analytical procedures to test inventory balances.
Understand and apply relevant accounting standards (e.g., IAS 2, IFRS 15) and auditing standards (e.g., ISA 501, ISA 320, ISA 520, ISA 540, ISA 620).
Recognize the importance of internal controls in inventory management and auditing.
Ensure accurate inventory valuation, considering cost, net realizable value, and potential adjustments.
Address specific risks related to consignment inventory, long-term contracts, and third-party inventory.
Understand the complexities of auditing inventory in manufacturing entities, including work-in-progress and overhead allocation.
Effectively audit revenue and receivables, focusing on risks, procedures, and relevant standards.
Apply professional skepticism throughout the audit process.

Action Steps

Develop an audit strategy considering materiality and business nature.
Identify risks in different inventory types.
Gather audit evidence specific to inventory as per ISA 501.
Assess compliance with IAS 2 Inventories.
Apply substantive procedures to inventory.
Employ analytical procedures to detect potential errors.
Understand issues with third-party inventory and long-term contracts.
Plan and execute inventory counts, including substantive and cut-off tests.
Identify risks in revenue and receivables.
Understand IFRS 15 application for revenue recognition.
Summarize bad debt provisions implications under ISA 540.
Describe analytical and substantive tests for revenue and receivables.
Recognize the relationship between purchases and payables.
Identify analytical procedures and substantive analytics for purchases and payables.
Describe audit procedures for payroll, deferred income, and other liabilities.

Key Terms

Net Realisable Value (NRV): The estimated selling price in the ordinary course of business, minus estimated costs of completion and selling costs.
FIFO: First-In, First-Out: An inventory valuation method where the first goods purchased are assumed to be the first sold.
LIFO: Last-In, First-Out: An inventory valuation method where the last goods purchased are assumed to be the first sold (prohibited under IAS 2).
Substantive Procedures: Audit procedures designed to detect material misstatements at the assertion level.
Analytical Procedures: Evaluations of financial information through analysis of plausible relationships among both financial and non-financial data.
Cut-off Tests: Audit procedures to ensure that transactions are recorded in the correct accounting period.
Materiality: The magnitude of an omission or misstatement of accounting information that makes it probable that the judgment of a reasonable person relying on the information would have been changed or influenced by the omission or misstatement.
Consignment Inventory: Inventory held by one party but owned by another until sold.
Work-in-Progress (WIP): Partially finished goods that are still in the production process.
Standard Costing: A system of cost accounting that uses predetermined costs for planning and control.
Variances: Differences between actual costs and standard costs.
IFRS 15: International Financial Reporting Standard for Revenue from Contracts with Customers.
Bad Debt Provision: An estimate of the amount of accounts receivable that will not be collected.
Window Dressing: Intentional manipulation of financial statements to present a more favorable view.

Timeline

Ongoing: Develop and execute audit strategy for inventory.
During Audit: Perform substantive and analytical procedures on inventory.
During Inventory Count: Attend and observe inventory counts, perform test counts.
Year-End: Perform cut-off testing and review inventory valuation.
Post-Year-End: Review post-year-end sales and purchase transactions.