The internal audit charter provides a formal definition of the internal audit activity's purpose, authority, and responsibility. It is foundational for helping new auditors understand their role and how internal audit functions within the organization.

According to The IIA's Code of Ethics, the principle of integrity emphasizes the importance of honesty and fairness in the auditor ' s conduct. The statement that best reflects this principle is that auditors must disclose all material facts known to them that, if not disclosed, may distort the reporting of activities under review.
This aspect of integrity ensures transparency and accuracy in the presentation of audit findings, crucial for the credibility of the audit function and the trust placed in it by stakeholders.
The IIA's Code of Ethics - Integrity

According to the IIA's guidance on external assessments (Standard 1312), a chief audit executive should consider conducting an external quality assessment more frequently than the mandated five years in situations such as significant changes in management or internal audit leadership. These changes can impact the expectations and requirements for the internal audit function, thus justifying the need for more frequent reviews to ensure alignment and adherence to standards.
IIA Standard 1312 - External Assessments

Corporate social responsibility (CSR) refers to an organization's overall commitment to improving the quality of life for its employees and the community at large. This commitment involves ethical behavior, sustainable practices, and contributions to social and environmental well-being. CSR initiatives aim to create a positive impact on society while also enhancing the organization's reputation and stakeholder relationships.
The IIA Standards: Standard 2110 - Governance: "The internal audit activity must assess and make appropriate recommendations to improve the organization's governance processes for making strategic and operational decisions, overseeing risk management and control, and promoting appropriate ethics and values within the organization." COSO ERM Framework: Discusses the role of CSR in enhancing organizational sustainability and stakeholder value.

According to the Standards set by the Institute of Internal Auditors (IIA), an internal audit activity may report conformance with the Standards even if it has not been in existence for more than five years provided that it has conducted periodic self-assessments and meets the other necessary criteria of the IIA standards. External assessments are required at least once every five years, but conformance can still be reported if internal assessments are conducted in the interim.
The Institute of Internal Auditors (IIA) - International Standards for the Professional Practice of Internal Auditing.