ISA 320 · Insurance

Materiality Calculator for Insurance

Pre-configured for insurance entities using gross premium income as the benchmark, reflecting the unique revenue model and reserving practices of the industry.

ISA 320 · LIVEv2026.04General

Materiality compiled,
not just calculated.

Session
0xE012
Fiscal Year
FY 2026
Benchmark
Profit Before Tax
inputs.conf
methodology.conf
README.md
01// entity— ISA 320.A4
02entity_name=
03fiscal_year_end=
04public_interest=
05first_year=
06industry=preset
suggested → PBT 5% is the standard starting point. Adjust for PIE/first-year.
09// benchmark— ISA 320.A4–A7
10benchmark.type=
11benchmark.amount=
12benchmark.percentage=
5.0%
range 5–10%
13benchmark.rationale=
14percentage.rationale=
Rationale fields · ISA 320.14 documentation
16// methodology— firm overrides
17performance_mat=
18trivial_threshold=
ISA 450.A2
19pm.rationale=
PM rationale · aggregation risk documentation
21// particular_materiality— ISA 320.10 · lower thresholds for sensitive areas
22Users expect full disclosure even of small amounts. ISA 550 significant risks apply.
23Regulatory sensitivity; users sensitive to disclosure precision.
24ISA 570 — qualitative by nature, lower threshold often appropriate.
25Misstatements that flip compliance status are material regardless of size.
26IFRS 8 — user decisions track segment performance.
27Industry-specific: bank capital ratios, insurance solvency, tax provision disclosure.
28Fair value estimates, R&D for pharma, loss reserves for insurance, NAV per share for funds.
Particular materiality checklist · ISA 320.10
30// normalisation— ISA 320.A6 · strip exceptional items
No adjustments. Add a line to exclude restructuring costs, impairments, or one-off gains.
Normalisation adjustments · one-off add-backs
40// prior_year_comparison— ISA 320.12 · year-on-year
41prior_year.amount=EUR
Prior-year comparison · YoY delta warnings
50// sensitivity— ±0.25 to ±2 percentage points
Enter a benchmark amount to see sensitivity analysis.
Sensitivity table · defensive range
60// component_materiality— ISA 600.21–23 · group audits
61group_audit=
Component materiality · ISA 600 group audits
70// revision_log— ISA 320.12–13 · changes during the audit
No revisions logged. Add an entry when new information changes materiality (e.g. actual results diverge from forecast, benchmark misstated, scope change).
Revision log · ISA 320.12 documentation
free tier·5/8 core fieldsEUR·no adj.
previewwp-mat-320-2026.pdf
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Overall materiality
—
Awaiting input
TOTAL
Performance mat.
—
75% · ISA 320.11
Clearly trivial
—
5% · ISA 450.A2
Tolerable misstmt.
—
Derived · 50% of perf.
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Benchmark guidance

Insurance companies present unique challenges for materiality determination. Premium income drives the business, but the most significant balance sheet items — insurance contract liabilities and reserves — involve extensive actuarial estimation.

Choosing the right benchmark

Gross written premiums at 0.5–1% is the most common benchmark for insurance entities. Total assets at 0.5–1% is an alternative, particularly where investment portfolio management is as significant as underwriting.

Key audit considerations

Insurance contract liabilities under IFRS 17 involve significant actuarial estimates — fulfilment cash flows, risk adjustment, and the contractual service margin.

Claims reserves (both reported and IBNR) are the highest-risk area and typically warrant input from an auditor's actuarial expert.

Investment portfolio valuation may warrant specific materiality considerations.

Solvency II regulatory capital requirements create additional user needs beyond IFRS reporting.

Frequently asked questions

What benchmark should I use for insurance audits?
Gross written premiums at 0.5–1% is the most common benchmark for insurance entities. Total assets at 0.5–1% is an alternative, particularly where investment portfolio management is as significant as underwriting.
What are the key materiality considerations for insurance?
Insurance contract liabilities under IFRS 17 involve significant actuarial estimates — fulfilment cash flows, risk adjustment, and the contractual service margin. Claims reserves (both reported and IBNR) are the highest-risk area and typically warrant input from an auditor's actuarial expert. Investment portfolio valuation may warrant specific materiality considerations. Solvency II regulatory capital requirements create additional user needs beyond IFRS reporting.
How does ISA 320 define materiality?
ISA 320 requires auditors to determine materiality for the financial statements as a whole when establishing the overall audit strategy. The benchmark chosen and the percentage applied depend on the nature of the entity, the needs of financial statement users, and the auditor's professional judgment.

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