Clonmel Precision Components Ltd, a Tipperary-based manufacturer with €38m turnover and 220 employees, faces its first statutory audit under a new engagement partner after the previous firm rotated off following seven consecutive years. The incoming team sets overall materiality at €760,000 — 2% of revenue — then discovers the audit committee wants a separate specific materiality for warranty provisions that ran at €2.4m last year. The ISA (Ireland) 315 risk register flags three higher-risk-of-material-misstatement areas before a single journal entry has been tested.
Overall Materiality
The threshold below which misstatements, individually or in aggregate, are considered unlikely to influence the economic decisions of users of the financial statements. ISA (Ireland) 320 — issued by IAASA based on IAASB ISA 320 — requires the auditor to apply professional judgement selecting a benchmark: typically 0.5–1% of revenue, 1–2% of gross profit, or 3–5% of pre-tax profit. For Clonmel Precision Components Ltd the €760,000 figure (2% of revenue) reflects the primacy of revenue as the key performance metric for trade creditors and lenders.
Performance Materiality
A lower threshold, typically set at 60–75% of overall materiality, used to reduce to an acceptably low level the probability that aggregate uncorrected and undetected misstatements exceed overall materiality. Under ISA (Ireland) 320, performance materiality drives sample sizes for substantive procedures throughout the engagement and the extent of controls testing.
Specific materiality applies to qualitatively significant items even when amounts fall below overall materiality. Related-party transactions, directors' remuneration disclosures required under the Companies Act 2014 (s.305–306), and regulatory compliance items from the Central Bank of Ireland frequently warrant a lower threshold regardless of quantum.
| Threshold | Basis | Amount (€) | Rationale |
|---|---|---|---|
| Overall materiality | 2% of revenue | 760,000 | Revenue is primary KPI for lenders |
| Performance materiality | 65% of OM | 494,000 | Moderate control environment assessment |
| Specific materiality — related parties | 0.5% of revenue | 190,000 | Director loan sensitivity (CA 2014 s.238) |
| Specific materiality — directors' pay | €nil | All amounts | Companies Act 2014 s.305 disclosure |
The ISA (Ireland) 315 risk register for Clonmel identifies three higher-risk-of-material-misstatement areas: warranty provisions (complex estimation under FRS 102 s.21), revenue cut-off on year-end shipments of €3.8m despatched in the last week of December, and a new intercompany management fee arrangement with a UK parent entity totalling €900,000. The audit team maps each risk to a tailored response — analytical review combined with test of details — reducing engagement hours by 10% versus the prior-year approach whilst increasing risk coverage on the three flagged areas.
⚠️Applying a single materiality figure across the entire audit
→ Qualitatively significant items — particularly related-party director loans under Companies Act 2014 s.238 and s.240 — require specific materiality thresholds set explicitly at planning, regardless of overall materiality.
⚠️Treating the ISA (Ireland) 315 risk register as a planning-stage compliance form
→ The risk register must actively drive the nature, timing and extent of audit procedures. Revisit and update it whenever circumstances change during fieldwork — IAASA audit quality reviews consistently flag static risk registers as a quality deficiency.
⚠️Confusing inherent risk with residual risk
→ Inherent risk is assessed independently of controls; residual risk reflects controls in operation. Conflating the two — especially in small Irish entities with limited segregation — understates the true audit response required.