Audit Materiality Calculator

Materiality sets the threshold above which misstatements could influence users of financial statements. Choose a benchmark and percentage to calculate overall materiality, performance materiality and the clearly trivial threshold.

How it works

Set overall materiality from a chosen benchmark and percentage, derive performance materiality and the clearly trivial threshold, and compare common benchmark ranges side by side.

Overall materiality = Benchmark × Percentage
Performance materiality = Overall materiality × Performance %
Clearly trivial threshold = Overall materiality × Clearly trivial %

Common uses

  • Audit planning and engagement documentation
  • Internal audit and review engagements
  • Management’s assessment of misstatements and errors

Worked example

The calculator above opens with this example. Change any input to see the results update instantly, or select Reset to return to these figures.

BenchmarkPre-tax income
Pre-tax income$4,670,000
Revenue$48,500,000
Total assets$52,400,000
Equity / net assets$21,700,000
Total expenses$43,830,000
Percentage applied to benchmark5%
Performance materiality (% of overall)75%
Clearly trivial (% of overall)5%
Example inputs
Overall materiality$233,500
Performance materiality$175,125
Clearly trivial threshold$11,675
Results

The percentage ranges shown are illustrative ranges commonly cited in practice; apply your firm’s methodology and professional judgment.

Interpreting the results

  • Choose the benchmark users of the financial statements focus on: pre-tax income for profitable companies, revenue or expenses for not-for-profits and break-even entities, assets for asset-based entities.
  • Normalize pre-tax income for unusual items before applying a percentage.
  • Document the benchmark, percentage and rationale; reviewers and inspectors test these judgments.

Frequently asked questions

How is audit materiality calculated?

Overall materiality is a percentage of a benchmark that users of the financial statements focus on, such as pre-tax income, revenue, total assets or total expenses. The benchmark and percentage are matters of professional judgment and must be documented.

What is performance materiality?

Performance materiality is set below overall materiality, often at 50% to 75% of it, to reduce the risk that uncorrected and undetected misstatements together exceed overall materiality. Lower percentages are used when risk is higher.

What does clearly trivial mean?

Misstatements below the clearly trivial threshold are so small that they would not be material individually or in aggregate, so they need not be accumulated. The threshold is commonly set at around 5% of overall materiality.

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