Built by a practicing auditor
Audit tools that work
the way real engagements do.
Free calculators, templates, and weekly insights for audit professionals. Built on ISA standards, not textbook theory.
Free tools
ISA 320 Planning
Materiality Calculator
Calculate overall materiality, performance materiality, and clearly trivial threshold. Includes working paper justification text and industry benchmarks.
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ISA 530 Planning
Sample Size Calculator
Calculate MUS and classical sample sizes, sampling intervals, and top stratum thresholds. Working paper justification ready to copy.
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ISA 570 Planning
Going Concern Checklist
Assess all going concern indicators under ISA 570. Severity-weighted scoring and working paper justification text ready to copy.
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One practical audit insight, every week.
No exam theory. No firm announcements. Just the things that make audits run faster and documentation more defensible.