Internal Audit / Insight
What Makes Audit Evidence Reliable?
Audit evidence is not reliable simply because it exists. It must be relevant, reliable, complete, accurate, timely, and traceable to the audit objective.
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A screenshot is not automatically audit evidence.
Neither is a report, an approval, or an email confirmation.
The document may be real.
But the more important question is:
What exactly does it prove?
Reliable audit evidence is not about how many documents we collect.
It is about whether the evidence is:
Relevant — does it actually address what we are testing?
Reliable — can we trust the source and how the information was generated?
Complete — does it capture the full population, period, or transaction being assessed?
Accurate — is the information correct and reconcilable?
Timely — does it relate to the period or condition under audit?
Traceable — can we connect the evidence back to the transaction, process, control, or audit objective?
This distinction matters.
An audit conclusion can look well documented while still being built on weak evidence.
Before accepting evidence:
Challenge the source.
Understand how it was generated.
Reconcile it.
Trace it.
And connect it back to the audit objective.
The objective is not simply to complete the working paper.
Evidence should support the conclusion.
Beyond the numbers. Inside the business.
Put the perspective to work.
Use these questions to connect the resource to your own business context.
Which objective and exposure need assurance?
Where could the process or control fail?
What evidence supports the conclusion and its limits?
What response addresses the cause and can be followed up?
References & context.
Use the framework and jurisdiction applicable to your work. Original examples and templates do not imply endorsement by the referenced organisations.
A question, correction or missing source?
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