重要性計算機
ISA 320 · LIVE
Materiality compiled,
not just calculated.
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=
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
previewwp-mat-320-2026.pdf
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2
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ISA/IFRS準拠の計算と文書化された方法論。
3
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