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Why Is Audit Based on Materiality? Understanding the Key Concept Behind Every Financial Audit

Understanding the Key Concept Behind Every Financial Audit

When business owners hear the word “audit,” many assume it’s a line-by-line inspection of every single transaction. In reality, audits aren’t about finding every mistake—they’re about identifying significant ones that could impact decision-making. This is where the concept of materiality comes into play.

If you’ve ever wondered why auditors don’t check everything, or why they focus more on some numbers than others, read on. Here’s why materiality is a cornerstone of any audit process in Malaysia—and globally.

What Is Materiality in Auditing?

In simple terms, materiality refers to the significance or importance of an amount, transaction, or disclosure in the financial statements.

An item is considered material if its omission or misstatement could influence the economic decisions of users of the financial statements—such as investors, lenders, or regulatory bodies.

Why Do Auditors Use Materiality?

Auditors apply materiality as a filter to determine:

  • What areas of the financial statements to focus on.
  • What errors or misstatements are considered important enough to report.
  • How much testing is necessary for different accounts or balances.

Without materiality, audits would be extremely time-consuming, costly, and inefficient.

Real-Life Example

Let’s say a company with annual revenue of RM100 million has a small RM500 overstatement in stationery expenses. While technically incorrect, this amount is unlikely to mislead users of the financial statements. It is considered immaterial.

However, if there’s a RM5 million misstatement in revenue recognition, that’s material and would almost certainly affect decision-making. Auditors would investigate and address such issues.

How Is Materiality Determined?

Auditors use professional judgment, guided by audit standards such as ISA 320 (International Standard on Auditing). Materiality is often calculated using a percentage of key benchmarks, such as:

  • Revenue
  • Profit before tax
  • Total assets
  • Equity

Example:

For a profitable company, materiality might be set at 5% of profit before tax.

For a nonprofit or asset-heavy business, it could be 1% of total assets.

There’s no one-size-fits-all rule—each company’s nature, industry, and risk level influence how materiality is set.

What Happens if Material Misstatements Are Found?

If auditors discover material misstatements during the audit:

  • The company will be asked to correct the financial statements.
  • If not corrected, the auditor may issue a qualified opinion or other types of modified audit opinions.
  • Repeated material misstatements may raise red flags for regulators or investors.

Benefits of Using Materiality in Audits

Efficiency: Auditors can focus on areas with higher risk or significance.

Relevance: Ensures the audit addresses matters that affect users of financial statements.

Cost-Effectiveness: Avoids over-auditing small, immaterial items.

Transparency: Helps provide a clear and fair view of the company’s financial health