The Institute of Internal Auditors Code of Ethics defines the guiding principles of an internal auditor:
- Integrity
The integrity of internal auditors establishes trust and thus provides the basis for reliance on their judgment. - Objectivity
Internal auditors exhibit the highest level of professional objectivity in gathering, evaluating, and communicating information about the activity or process being examined. Internal auditors make a balanced assessment of all the relevant circumstances and are not unduly influenced by their own interests or by others in forming judgments. - Confidentiality
Internal auditors respect the value and ownership of information they receive and do not disclose information to third parties without appropriate authority unless there is a legal or professional obligation to do so. - Competency
Internal auditors apply the knowledge, skills, and experience needed in the performance of internal audit services.