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Glossary

Stage 1 audit

A stage 1 audit is the first half of an ISO 27001 certification audit: a documentation review in which the auditor examines your ISMS design — scope, risk assessment, Statement of Applicability, mandatory records — and decides whether you’re ready for the stage 2 certification audit.

Last updated July 26, 2026
Definition

The documentation-review phase of an ISO 27001 certification audit, in which the auditor evaluates the design and readiness of the ISMS — scope, risk assessment, Statement of Applicability, and required records — before proceeding to the stage 2 audit.

RelatedStage 2 Audit
RelatedISO 27001 for Startups
RelatedISO 27001 Readiness Checklist
Glossary · SPractitioner definition
Linked to the deeper guideSOC 2 · ISO 27001 · HIPAA · FedRAMP · CMMC

Stage 1 is a design review, usually conducted remotely.

Glossary · Stage 1 Audit
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What stage 1 examines

Stage 1 is a design review, usually conducted remotely. The auditor reads your ISMS documentation — scope statement, information security policy, risk assessment and treatment methodology, Statement of Applicability, and the records ISO 27001 mandates, like internal audit results and management review minutes. They’re answering one question: is this management system designed well enough that a full certification audit makes sense?

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A readiness gate, not a formality

Auditors use stage 1 to surface problems while they’re still cheap to fix. The output is typically a short report of areas of concern — gaps that would harden into findings if they’re still present at stage 2. A thin risk assessment, an internal audit that never happened, or a scope statement that doesn’t match how the company actually operates are the classic flags. Treat the report as a punch list; the interval before stage 2 exists precisely so you can close it.

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Timing the two stages

Book stage 1 once the ISMS has genuinely operated, not the day the last policy is signed — the auditor wants records proving the management loop has turned at least once. Most startups sequence a readiness push, stage 1, a few weeks of remediation, then stage 2. The full sequence, with what to have ready at each step, is laid out in ISO 27001 for startups.

Glossary

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Nearby terms
Stage 2 AuditThe certification audit itself — evidence, interviews, and the certificate decision.
ISO 27001 for StartupsThe full path from zero to certificate, both stages included.
ISO 27001 Readiness ChecklistWhat to have in order before the auditor’s document review.

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