Internal Audit Charter is the formal document that writes detail about the main purpose of internal audit, right, and obligation, reporting line, authority and code of ethics that internal auditor should have.

In general, this document is approved by the audit committee and the board of directors.

This document does not only helps other departments, executive officers as well as board of directors to understand what internal audit activities are but also help the internal auditors themselves to know what are their scope, right, responsibilities and reporting line.

The following are the items that should be included in and what you need to know Internal Audit Charter.

Definition of Internal audit, Code of Ethics, and The standard if Internal Audit:

Internal Audit Charter should define clearly what are the internal audit activities. Such a definition could be copied from the official definition of internal audit or tailor it for easy to understand.

The code of ethics is very important. It helps to maintain not only the quality of the internal audit but also how people around respect. All of the ethical code should be clearly defined.

The formal training should provide to all audit staff. These codes should also tailor and simplify so that all related parties could understand.

Internal Audit Code of Ethics is here

Purpose, and Scope of Internal Audit

The internal Audit Chart should stat the common purpose of the internal auditor. Remember, Charter is the official document for the internal auditor. Therefore, the purpose here should state clearly link to the organization. And not too general.

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The scope of internal audit activities should clearly state here. However, Charter should write in an open scope by not limited or restrict internal audit. It simply means not restrict internal audit itself.


Internal Audit activities are independent of operation and this department is not under the control of executive officers like CFO or CEO of the organization.

Internal Audit department is under the control of the Audit Committee, which is the sub-board of directors or sometime could be under the control of the board of director. But, it must not under the control of the executive.

Independence here refers to both department and mine.

The main reason to put Independence in the Internal Audit Charter is to let them have freedom in their works.

Authority of Internal Audit

The authority of internal auditor must be defined by the board of director and audit committee. Like internal audit has the authority to engage with an external or internal resource for the purpose of their work.

Somehow, the internal audit might not have enough skill or information to do their job. In that situation, the internal auditor needs to seek from the available resource.

Responsibilities of Internal Audit

This is probably the important part. Internal audit responsibilities should be documents here in detail.

All of the responsibilities should be included here. In case, there is a problem with internal audit, Internal Audit Charter is the best place to go.

Make sure all of the responsibilities are included here, and also make that some sensitive responsibilities are clearly excluded.

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Reporting line of Internal auditor

In general, Internal audit reports to the Audit Committee and Board of Directors. In case there is no Audit Committee and Board of Director, Internal Audit should report to the owner of the companies.

For beneficial, the organization chart should be included in this section.

Right and Obligation of Internal Auditor

The right of Internal Auditor is very important and I can say it is part of the success of internal audit activities.

Therefore, the right of internal audit should state very clearly and inform those related parties to know. In some companies, an internal audit could not access to certain information. They generally restrict and limited by the executive.

Prepare by Chief of Internal Auditor

Who is responsible for preparing the Internal Audit Charter?

Well, Intern Audit Charter is generally prepared by the Chief of Internal Auditor or Head of Internal Audit Department. This charter should be review annually to reflect the problem that happened during the year.

Final Approval from the Board of Internal Audit

Last but not least, the Internal Audit Charter should be approved by the Board of Directors as well as the Audit Committee.

This is the way how we ensure that all of these documents are respect by the executive, especially the CEO and CFO.


All of the above factors are what you should include in your Internal Audit Charter. It should be reviewed and updated annually. I hope this article helpful, and if you have any suggestions. Drop your comment below.