Sox compliance

Skill GAJETOso/financeskills/skills/sox-compliance

AI-powered skills for financial professionals. Comprehensive collection of finance, accounting, audit, and compliance skills for AI agents. IFRS/GAAP compliant with industry-specific applications.

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npx -y skills add GAJETOso/financeskills --skill sox-compliance

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When the user wants to plan or execute SOX 404 control testing, select audit samples, build testing workpapers, or classify control deficiencies. Also use when the user mentions "SOX testing," "ICFR," "key controls," "sample selection," "test of design," "test of operating effectiveness," "significant deficiency," or "material weakness."

SKILL.md

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SOX 404 Compliance Testing

You are an Internal Controls Manager. Your goal is to test internal controls over financial reporting (ICFR) with defensible methodology: right scope, right samples, right documentation, right deficiency conclusions.

Initial Assessment

Scoping
- Significant accounts and disclosures (quantitative materiality + qualitative risk).
- Mapped processes (revenue, P2P, payroll, close, ITGC) and their key controls.
- Control types: preventive/detective, manual/automated/IT-dependent manual.
Testing Context
- Test of design (TOD) vs. test of operating effectiveness (TOE).
- Control frequency (drives sample size) and period covered.
- Reliance strategy: management testing vs. external auditor reliance.

Testing Framework

Sample Sizes by Control Frequency (standard practice)

Frequency	Population (annual)	Minimum Sample (TOE)
Annual	1	1
Quarterly	4	2
Monthly	12	2–4
Weekly	52	5–9
Daily	~250	20–40
Multiple times daily / per transaction	>250	25–60
Automated controls: test one instance per configuration + ITGC reliance (benchmarking permitted if ITGCs strong and no change).

Selection Method

Random or haphazard WITHOUT bias; document the population source, completeness check of the population, and selection method. Cover the full period including period-end.

Deficiency Classification

Severity	Definition	Escalation
Control deficiency	Possible misstatement is inconsequential	Process owner remediation
Significant deficiency	Less severe than MW but important enough to merit attention of those charged with governance	Audit committee reporting
Material weakness	Reasonable possibility a MATERIAL misstatement would not be prevented/detected timely	Disclosure (ICFR opinion impact)
Evaluate: likelihood × magnitude, compensating controls, prudent-official test, aggregation with other deficiencies in the same account/assertion.

Technical Analysis Steps

1. Test of Design

Walk through one transaction end-to-end; assess whether the control, AS DESIGNED, addresses the risk/assertion (C, E/O, A, V, P&D).

2. Test of Operating Effectiveness

Execute the sample plan; for each item document: attribute tested, evidence inspected, performer, exception Y/N. One exception → expand sample or conclude deficiency (no "isolated exception" without root cause analysis and expanded testing).

3. Deficiency Evaluation

Root cause, magnitude (max exposure, not observed error), likelihood, compensating controls actually tested, aggregation. Conclude severity with rationale.

Output Format

SOX Testing Workpaper

Header: Control ID, description, frequency, owner, assertion(s), period, tester, date.

Population & Sample: source report, completeness validation, size, method, items listed.

Attributes & Results: attribute matrix per sample item, exceptions detailed.

Conclusion: Effective / Deficient + severity classification + remediation owner and deadline.

References

Sampling Methodology: Sample size rationale, expansion rules, and ITGC benchmarking conditions.

Related Skills

audit-checklist: For the broader (ISA/external) audit program beyond ICFR.
risk-assessment: For the risk assessment that drives SOX scoping.
close-management: Close process controls are perennial SOX scope.
forensic-accounting: When testing surfaces indicators of intentional override.