5 Types of Audit Evidence Used in Your Organization’s Financial Statement Audit

Organizations that understand how auditors verify account balances and transactions can minimize disruptions during audit fieldwork and maximize the effectiveness of financial statement audits. Here are five types of audit evidence auditors gather to help them form opinions regarding your financial statements.

financial audit1. Original source documents

Auditors can verify an account balance or record by vouching (or comparing) it to third-party documentation. For example, an auditor might verify the existence of a machine on your company’s fixed asset register by reviewing the invoice from the seller. Vouching enables an auditor to evaluate the accuracy of the amount recorded and whether the transaction was entered correctly in the accounting system.

2. Physical observations

Seeing is believing. Auditors sometimes verify the existence of assets through physical observations and inspections. For example, inventory audit procedures typically include observing or conducting a physical inventory count, inspecting the process to record incoming and outgoing inventory, and analyzing the inventory obsolescence process.

3. Confirmation letters

Auditors send letters to third parties, such as customers, banks, or vendors, asking them to verify amounts recorded in a company’s books. There are two types of confirmations: A positive confirmation requests that the recipient complete a form confirming account balances, such as how much a customer owes the company. A negative confirmation requests that the recipient respond only if the balance is inaccurate.

4. Comparisons to external market data

Auditors may research pricing data for assets actively traded on the open market to confirm the amounts claimed on the company’s financial statements. For example, if a company invests in marketable securities it plans to sell within the year, the auditor could analyze the prevailing market prices to confirm their book value. Likewise, a random sample of parts inventory could be compared to online pricing sheets to confirm that items are reported at the lower of cost or market value.

5. Independent calculations

Auditors may verify internally prepared schedules and reports by re-creating them. If the auditor’s work matches the client’s version, it confirms that the underlying accounts appear reasonable. Auditors often rely on this procedure for such items as bank reconciliations and schedules of payroll-related expenses (for example, overtime, benefits, and tax payments).

Collaboration is critical

An effective audit requires coordination between the audit team and the client. Work together to review the types of audit evidence that were used for each major financial statement category. This process can identify potential bottlenecks in the auditing process and help you anticipate document requests and inquiries, making your next audit more efficient.


Contact us to discuss your audit needs for your organization.

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