Materiality: Setting Thresholds and Using Them

Learning objectives

By the end of this chapter, you should be able to:

• Calculate planning materiality using a suitable benchmark and a transparent method.
• Set performance materiality and a clearly trivial threshold to guide testing and evaluation.
• Explain how materiality influences sampling, testing scope and the design of audit procedures.
• Identify situations where a small misstatement is significant because of its nature.
• Evaluate misstatements individually and in aggregate, and determine the appropriate audit response.

Overview & key concepts

Materiality is the audit team’s practical threshold for deciding what matters in the financial statements overall. It helps determine where to focus work, how much evidence to obtain, and how to evaluate differences found during the audit.

A simple materiality map

Materiality is often applied as a ladder of related thresholds:

• Overall (planning) materiality: top-level tolerance for misstatement in the financial statements overall.
• Performance materiality: a lower working limit used to design testing and reduce the risk that remaining differences add up to something significant.
• Clearly trivial threshold: a posting cut-off for the audit difference schedule so the team does not spend time documenting items that are plainly inconsequential on their own.
• Specific materiality: a separate (often lower) threshold for particular balances, classes of transactions or disclosures that are especially sensitive.

Core theory and frameworks

Setting planning materiality

Planning materiality is set early and acts as the anchor for audit planning. It reflects the point at which a misstatement—by size or nature—would be likely to change how a typical user interprets performance, financial position, liquidity, or stewardship.

Step 1: Choose a benchmark

Pick a benchmark that best matches what users are most likely to focus on:

• Profit before tax (PBT): often used where profitability is the main focus and profits are stable.
• Revenue: may be more useful where profits are volatile, margins are thin, or revenue size drives attention.
• Total assets / net assets: often relevant for asset-based entities or where balance sheet strength is central.

Step 2: Choose a percentage

The percentage is a judgement. It is shaped by factors such as:

• stability and predictability of results,
• strength of controls and governance,
• extent of estimates and judgemental areas,
• history of misstatements and adjustments,
• incentives and pressures that could create bias.

A higher risk profile generally supports a lower percentage; a stable, low-risk entity may justify a higher percentage within common practice.

Step 3: Calculate

Planning materiality = benchmark × percentage.

Calculating performance materiality

Performance materiality is the audit team’s working tolerance for planning tests at account-area level. It is set below overall materiality to reflect practical realities: findings are identified in separate cycles, some issues may remain unadjusted, and small differences can accumulate across the statements. Setting a lower working limit helps keep the total of remaining differences within the overall level the auditor is prepared to accept.

Performance materiality is commonly set as a percentage of planning materiality (for example, 50%–80%), adjusted for:

• expected level of misstatements,
• quality of internal controls,
• subjectivity of estimates,
• number and complexity of locations/systems,
• changes in management or finance function capability.

Establishing a clearly trivial threshold

The clearly trivial threshold is a posting/recording cut-off for the audit difference schedule. It helps the team avoid spending time documenting items that are plainly inconsequential on their own.

However, very small items may still be noted where they point to a wider issue, such as:

• repeated errors suggesting control weakness,
• a pattern of one-directional bias,
• sensitivity around particular disclosures,
• signs that management judgement is consistently optimistic or conservative.

In many approaches, clearly trivial is set at around 1%–3% of planning materiality, though it varies by firm methodology and the expected volume of differences.

Specific materiality for particular areas

Some areas can influence user judgement even when amounts are small. In those cases, auditors may set a specific (lower) materiality for:

• sensitive disclosures (e.g., related parties, key management matters),
• items affecting compliance with key contractual terms (e.g., covenants),
• disclosures central to the narrative users rely on (e.g., going concern and liquidity commentary),
• areas of heightened regulatory or reputational sensitivity.

Specific materiality does not replace overall materiality. It sits alongside it, ensuring that important areas are evaluated using a threshold that fits their importance.

How materiality drives sampling and scope

Materiality affects both what is tested and how much is tested.

• Tolerable misstatementis often derived from performance materiality and may be allocated across significant balances and disclosures.
• Wheretolerable misstatement is lower, the auditor typicallyincreases sample sizesor performsmore substantive proceduresto obtain sufficient appropriate evidence.
• Materiality also influences whether the approach emphasises:
  • tests of controls(when controls are expected to operate effectively), and/or
  • substantive procedures(when controls are weak, unreliable, or change increases risk).

At completion, misstatements from sampling are considered in terms of known differences and any projection to the wider population before forming an overall conclusion.

Evaluating misstatements (including presentation and disclosure)

A misstatement includes any error in:

• measurement(wrong amount),
• classification/presentation(wrong line item or wrong category),
• disclosure(missing or misleading information).

The conclusion step looks at the statements together, including the notes. A misclassification that does not affect profit can still be significant if it changes how users read liquidity, solvency, or risk.

Where misstatements consistently increase profit or assets, the auditor considers whether this suggests management bias or a fraud risk requiring further response.

Revising materiality during the audit

Materiality may need revision if new information makes the original benchmark or assumptions inappropriate (for example, profit changes significantly, or the business experiences an unexpected impairment or restructuring).

If revised, the audit plan and evaluation work should be updated, and the basis for revision clearly documented.

Documentation and communication

Materiality decisions should be recorded in a way that another experienced auditor could follow: what benchmark was chosen, why the percentage makes sense for this engagement, how performance materiality and the posting threshold were derived, and whether any lower thresholds were set for sensitive areas. The audit file should also show how uncorrected differences were discussed with management and how key points were reported to the people responsible for overseeing the financial reporting process.

Worked example

Narrative scenario

ABC Ltd is a manufacturing company with the following results for the year ended 31 December 2025:

• Revenue: £700,000
• Profit before tax (PBT): £101,500 (14.5% margin)
• Total assets: £500,000

ABC Ltd has been stable and profit-focused. Users concentrate mainly on profitability. The company has historically produced accurate figures, but recent management changes add uncertainty about the risk of error.

During the audit, the following matters are identified:

1. £20,000overstatement of inventory.
2. £15,000understatement of revenue.
3. £10,000misclassificationof a bank overdraft as cash.
4. £5,000error in depreciationcalculation.
5. £3,000omissionin related-party transaction disclosure.
6. £2,000error in accruals.
7. £1,500overstatement of trade receivables.
8. £1,000understatement of trade payables.
9. £500error in VATcalculation.
10. £250error in payroll taxcalculation.

Required

• Calculate planning materiality using PBT as the benchmark.
• Set performance materiality and a clearly trivial threshold.
• Evaluate the identified misstatements and determine their impact on the financial statements.
• Consider qualitative factors and decide on necessary adjustments.

Solution

1) Planning materiality

Benchmark: Profit before tax (PBT) = £101,500

Because management changes increase uncertainty, a lower percentage is used to reflect the higher risk of misstatement than in a fully settled, long-stable environment.

Percentage: 4%

Planning materiality = £101,500 × 4%
= £101,500 × 0.04
= £4,060

2) Performance materiality

Performance materiality factor: 75%

Performance materiality = £4,060 × 75%
= £4,060 × 0.75
= £3,045

A 75% factor remains appropriate here because, despite management change, the entity has a strong track record of accurate reporting and there is no evidence (at this stage) of widespread control failure.

Rounding principle: thresholds are commonly rounded for practical use, provided the basis and rounding approach are documented consistently.

Rounded performance materiality: £3,050 (nearest £50)

3) Clearly trivial threshold

To avoid learners treating a high percentage as a default, a lower rate is used here given the likelihood of multiple small differences.

Clearly trivial: 2% of planning materiality

Clearly trivial = £4,060 × 2%
= £4,060 × 0.02
= £81.20

Rounded clearly trivial threshold: £80 (nearest £10)

In practice the threshold is set to balance workload and risk; here it is kept deliberately low for training discipline and because multiple differences are expected.

4) Evaluate the misstatements

4.1 Profit effect (measurement misstatements)

Assumed directions for teaching purposes (because the scenario lists several “errors” without stating whether they increase or decrease profit):

• Depreciation error is anunderchargeof £5,000 (expense understated; profit overstated).
• Accruals error is anunderaccrualof £2,000 (expense understated; profit overstated).
• Trade payables understatement of £1,000 relates tounrecorded invoices(expense/cost of sales understated; profit overstated).
• Payroll tax error is anunderaccrualof £250 (expense understated; profit overstated).

Profit impact schedule

Net overstatement of profit
= 20,000 − 15,000 + 5,000 + 2,000 + 1,000 + 250
= £13,250

Comparison to materiality

• Net profit misstatement£13,250exceeds planning materiality£4,060.
• Individual items (e.g., £20,000 inventory; £15,000 revenue) far exceed performance materiality and would drive extensive audit work and proposed adjustments.

4.2 Presentation/classification misstatement (no profit effect)

Bank overdraft misclassified as cash (£10,000)

• Profit impact:nil
• Presentation impact: cash and cash equivalents overstated and liabilities understated (or overdraft omitted from liabilities).

Even with no profit effect, this can distort working capital, liquidity and cash metrics. It is therefore evaluated as a potentially significant misstatement in presentation and is normally corrected.

4.3 Balance sheet misstatements that may indicate a profit issue

Trade receivables overstated (£1,500)

An overstatement of receivables often points to an underlying cause that may affect profit, for example:

• revenue cut-off / revenue recognitionerrors, or
• insufficient impairment/allowancefor uncollectible amounts.

In this scenario it is presented as a receivables overstatement; in practice, the audit response would be to determine why the receivable is overstated and whether an income statement effect should also be recognised.

4.4 VAT error (£500)

VAT often does not affect profit where it is recoverable/payable to the tax authority and correctly excluded from income and expense captions. This assumption holds unless VAT is irrecoverable, the error is embedded within revenue/expenses, or penalties/interest arise. The audit response should confirm which applies.

4.5 Disclosure misstatement and specific materiality

Related-party disclosure omission (£3,000)

This is primarily assessed by nature, not size. Related-party information can be important because it affects how users interpret transparency, governance and whether transactions were conducted appropriately.

This is a strong candidate for specific materiality, using a lower threshold than overall materiality for related-party disclosures. Even if the amount is below planning materiality, the omission can still require correction due to sensitivity.

5) What to do next (exam-focused actions)

1. Discuss with managementand request adjustments for:
   • inventory valuation (and cost of sales),
   • revenue recognition,
   • depreciation,
   • accruals and payroll tax,
   • unrecorded payables (and related expenses/cost of sales),
   • overdraft/cash classification, and
   • related-party disclosures.
2. Extend testing where needed(especially where misstatements exceed performance materiality):
   • expand sample sizes or perform additional substantive procedures in affected areas,
   • re-assess cut-off around year end for revenue and purchases,
   • review inventory counts/valuation evidence and costing,
   • revisit estimates if error patterns suggest weak processes.
3. If management refuses to correct:
   • evaluate misstatementsindividuallyandin aggregate,
   • consider whether offsetting items arise from unrelated causes or indicate bias,
   • applyspecific materialityto sensitive disclosures (e.g., related parties),
   • communicate uncorrected misstatements to those charged with governance,
   • consider the effect on the auditor’s report if the remaining impact is significant (including whether issues are widespread across the statements).

Common pitfalls and misunderstandings

• Using a percentage without linking it to risk:management change, weak controls or significant estimates usually justify a lower percentage.
• Treating a high “clearly trivial” percentage as normal:lower thresholds are common where many small differences are expected.
• Assuming VAT never affects profit:confirm recoverability and whether the VAT error is embedded in income/expense lines.
• Overlooking causes of receivable misstatements:receivables often connect to revenue recognition or impairment.
• Ignoring presentation and disclosure:misclassification (e.g., overdraft vs cash) and missing disclosures can matter even where profit is unchanged.
• Relying on offsetting as a justification:aggregated evaluation is required, but offsetting should be understood, not assumed, and bias should be considered.
• Weak documentation of judgements:benchmark choice, percentages, rounding and revisions must be clearly explained and consistently applied.

Summary and further reading

Materiality converts professional judgement into practical audit thresholds. Overall materiality anchors planning; performance materiality provides a buffer for designing procedures; the clearly trivial threshold prevents time being spent documenting items that are plainly inconsequential on their own. Specific materiality ensures sensitive areas—especially disclosures—are evaluated using an appropriately low threshold.

Materiality is applied to both numbers and narrative: measurement, classification, presentation and disclosures are all capable of being materially misstated. Differences are assessed individually and in aggregate, with thresholds revisited when circumstances change.

FAQ

How is planning materiality determined?

Planning materiality is set by selecting a benchmark that reflects what users focus on (often profit, revenue or assets) and applying a percentage that fits the entity’s risk profile and stability. The result provides a clear anchor for planning and scaling audit work.

What is the difference between planning materiality and performance materiality?

Planning materiality is the top-level tolerance for misstatement in the financial statements overall. Performance materiality is a lower working limit used to design testing, providing a buffer so that remaining differences are less likely to add up to something significant overall.

Why can a small misstatement still be significant?

Some matters are sensitive because of their nature—such as covenant-related items, liquidity presentation, and related-party disclosures. Even small differences in these areas can change how users interpret the financial statements.

How should items below the clearly trivial threshold be handled?

They are generally not posted to the formal audit difference schedule. However, very small items may still be noted where they suggest repeated errors, bias, control weaknesses or sensitivity around particular disclosures.

When should materiality be revised during the audit?

When new information makes the original benchmark or assumptions inappropriate—such as major changes in profit, unexpected impairments, or significant volatility. Any revision should be documented and its effect on testing and conclusions considered.

Summary (Recap)

This chapter explained how to set and apply materiality thresholds in audit work. It introduced a practical “materiality map” covering overall materiality, performance materiality, clearly trivial thresholds and specific materiality for sensitive areas. It also showed how materiality influences sampling and testing scope, and how misstatements are evaluated across measurement, presentation and disclosure. The worked example demonstrated how misstatements can exceed overall materiality, why presentation/disclosure issues may still matter without profit impact, and what actions follow when differences remain uncorrected.

Glossary

Materiality
A practical threshold used to judge whether a difference in the financial statements could change how users interpret performance, position, liquidity or stewardship.

Planning materiality
An overall tolerance for misstatement in the financial statements as a whole, set early to anchor planning and scale audit work.

Performance materiality
A lower working limit used to plan and perform audit procedures, providing a buffer so remaining differences are less likely to add up to something significant overall.

Clearly trivial threshold
A posting cut-off for the audit difference schedule used to avoid documenting items that are plainly inconsequential on their own, while still noting very small items that indicate wider issues.

Specific materiality
A separate (often lower) threshold for particular balances, classes of transactions or disclosures that are especially sensitive or important to users.

Misstatement
Any error in measurement, classification, presentation or disclosure, including omissions.

Corrected misstatement
A misstatement adjusted by management so it does not remain in the final financial statements.

Uncorrected misstatement
A misstatement identified during the audit that remains unadjusted at completion and must be evaluated individually and in aggregate.

Aggregation
Considering the combined effect of uncorrected differences across the financial statements, alongside their causes and qualitative significance.

Projected misstatement
An estimate of misstatement in a full population derived from results found in a sample, used when evaluating the overall impact of sampling results.

Revision of materiality
Updating thresholds when the original benchmark or assumptions no longer reflect the entity’s circumstances, requiring the audit plan and evaluation to be updated accordingly.

Users of financial statements
People who rely on the financial statements for decisions; understanding their likely focus helps in choosing benchmarks and setting sensible thresholds.