Icologiq Knowledge · Concept
Audit Evidence
Records, statements of fact or other verifiable information that is relevant to the audit criteria and supports audit evaluation.
Also known as:
verifiable audit evidence
At a glance
Type
Concept
Topic
Audit
Applies to
Cross-industry
Current version
Status
Last reviewed
October 9, 2026
Definition
Audit evidence is the verifiable information used to evaluate whether audit criteria are fulfilled. It can include records, statements of fact, observations, measurements, system data and other information that is relevant to the requirements being audited. Audit evidence is broader than documents alone: the key tests are relevance to the criteria and the ability to verify what the evidence shows.
Why it matters
Audits depend on evidence that can be located, understood and connected to the requirement being assessed. When procedures, approvals, actions and operational records are fragmented across folders, email and spreadsheets, evidence collection becomes slow and conclusions become harder to defend. Controlled records and traceability help teams present evidence without creating a separate audit-only archive.
Evidence should help answer whether a specific Audit Criterion is fulfilled. Information can be accurate but still add little value if it is unrelated to the requirement being evaluated.
Relevant to the criteria
•
The auditor should be able to confirm the information through records, observation, measurement, corroborating statements, system data or another suitable means rather than relying only on assertion.
Verifiable
•
Audit Evidence can include Controlled Documents, completed records, transactions, system logs, interviews, physical observation, measurements and other information. It is not limited to a document folder.
Available in multiple forms
•
Audits normally examine samples rather than every transaction. Sampling should be selected thoughtfully so the evidence supports a reasonable evaluation of the process within the Audit Scope.
Representative sampling
•
Useful evidence retains enough context to understand what it relates to, when it was created, who was responsible and which version, process, site or requirement applied.
Traceable context
•
Concept explained
What makes audit evidence useful
Useful audit evidence is not defined by format alone. Auditors need information that is relevant to the audit criteria, can be verified and is sufficient to support a reasoned finding. Evidence may therefore come from controlled records, interviews, observation, measurements, transactions or system history.
The requirements used as the reference against which objective evidence is compared during an audit.
Audit Criteria
Concept
· Audit
An observation or conclusion from an audit that identifies conformity, nonconformity or another issue requiring evaluation or follow-up.
Audit Finding
Concept
· Audit
A traceable record of relevant system activities and changes showing what happened, when it happened and, where applicable, who performed the action.
Audit Trail
Technology/Compliance
· Document Control
The ability to follow the history, status, location or relationships of information, materials, products, actions or decisions through a process.
Traceability
Concept
· Quality/Compliance
The process of ensuring that approved documents are current, traceable, accessible to the right people and protected against uncontrolled change or use.
Document Control
Process
· Document Control
A first-party audit conducted by or on behalf of an organization to evaluate its own management system, processes or controls against defined audit criteria.
Internal Audit
Process
· Audit
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