How do auditors prove a CSV file is complete and accurate enough for testing?

author: AcadiFi Team

Answer:

Auditors do not usually "prove" perfection. They obtain enough evidence that the file is complete and accurate enough for the audit objective. Common procedures include reconciling record counts and totals to an independent system report, confirming the extraction parameters, reviewing field definitions, checking key fields for blanks or invalid formats, and documenting filters or exclusions.

For example, if the audit tests all payments over USD 10,000, the file should include the full period, relevant payment types, complete amount fields, and no hidden pre-filtering that removes high-risk records.

If the auditor cannot validate the file, the conclusion should be limited or the procedure should change. A Python script cannot fix an unreliable population.