The IIA · 100 questions · 2 hours · pass mark 600 on a 250–750 scale

CIA Part 3: Internal Audit Function

Part 3 looks at the internal audit function as a whole: how it is run, how the audit plan is built, how quality is assured, and how results are communicated and followed up. Engagement results and monitoring is 45% of the exam.

Why take the CIA?

If internal audit is your career, or you want it to be, the CIA is the credential the profession is built around.

  • The global mark of an internal auditor

    The CIA is The IIA’s flagship certification, recognised by employers and audit committees around the world as proof that you know the profession’s standards and can apply them.

  • Built on today’s Standards

    The exams follow the 2024 Global Internal Audit Standards, so what you study is what the profession now expects in practice: purpose, ethics, governance and quality.

  • Roles it opens

    Internal audit at every level, risk and compliance, controls and assurance roles, and the path to leading a function that reports to the board.

  • A route that fits you

    Sit three parts in any order within three years, or, if you’re an approved CPA or CA holder or a qualified CISA holder, one Challenge Exam instead.

Where Part 3 fits: it takes the chief audit executive’s view of running the whole function, its plan, its quality and its reporting to the board.

What the exam covers

SectionTopicExam weight≈ Questions
AInternal Audit Operations25%25
BInternal Audit Plan15%15
CQuality of the Internal Audit Function15%15
DEngagement Results and Monitoring45%45

CIA Part 3 study packs

CIA Part 3 · Study packComing soon

CIA Part 3 Accelerator Pack

A structured path through every section of CIA Part 3, aligned to the Global Internal Audit Standards: concepts, exam traps, cheatsheets and a study plan.

CIA Part 3 · Question bankComing soon

CIA Part 3 Questions Hub

Exam-style practice questions for CIA Part 3, with an explanation for every answer and your score by section.

CIA Part 3 · Visual guideComing soon

CIA Part 3 Visual Blueprints

One-page visual blueprints of each section of CIA Part 3, for fast recall and revision, as page-turning flipbooks.