What Auditors Actually Look For (and How to Be Ready Before They Ask)
An audit is an evidence exercise
It helps to stop thinking of an audit as a search for mistakes and start thinking of it as an evidence exercise. The auditor forms an opinion on your financial statements, and to support that opinion they gather evidence against specific assertions for each material account. Once you see the pattern, the requests stop feeling random.
The assertions behind every request
For transactions and balances, auditors test some combination of:
- Existence / occurrence — the asset is real; the sale actually happened.
- Completeness — nothing is missing; all liabilities are recorded.
- Accuracy / valuation — amounts are right and carried at the correct value.
- Rights and obligations — you own the asset; the debt is yours.
- Cut-off — transactions are in the correct period.
- Presentation and disclosure — it’s classified and disclosed correctly.
When an auditor asks for a bank confirmation, they’re testing existence of cash. When they trace a December invoice to a January shipment, they’re testing cut-off. Knowing the “why” lets you anticipate the “what.”
How they gather it: risk, materiality, and sampling
Auditors don’t check everything. They set a materiality threshold, assess where the risk of misstatement is highest, and design procedures accordingly — inspection, confirmation, recalculation, and analytical review. For the details they do test, they typically pull a sample. That sampling is a strength and a weakness: efficient, but by design it can miss things that fall outside the sample. (It’s exactly why testing 100% of transactions continuously — as software can — is such a meaningful upgrade over sample-based assurance.)
The areas that always get attention
Three areas draw scrutiny in nearly every audit:
- Revenue — Auditing standards presume revenue recognition is a fraud risk, so expect cut-off testing and a close read of your ASC 606 policy.
- Management override of controls — Because leaders can bypass controls, auditors test journal entries and estimates for bias or manipulation (AU-C 240).
- Estimates — Allowances, reserves, impairments, and useful lives get challenged because they involve judgment.
Be ready before they ask
The companies that sail through are the ones who can produce the evidence on demand: reconciliations tied to source, contracts linked to the revenue they support, and a journal entry log that shows preparer, approver, date, and rationale. If pulling that together means a two-week hunt through inboxes and spreadsheets, the audit will be long and expensive. If it’s a few exports, it won’t.