Professional resources · Certified Internal Auditor

CIA prep, made clear.

Revision documents, online study guides and topic practice — organised around the 2025 syllabus.

Internal audit professional studying risk, governance and control concepts

Three parts, one path

Choose your focus.

CIA Part 1

Internal Audit Fundamentals

2,231questions
  • 4 sections
  • 125-q blueprint
  • 150 min mock
Topic practice available

Memberships are per CIA part — subscribe to Part 1, Part 2, Part 3 or all three at once and get that part's study pack and online practice.

CIA Part 2

Internal Audit Engagement

2,167questions
  • 3 sections
  • 100-q blueprint
  • 120 min mock
Topic practice available

Memberships are per CIA part — subscribe to Part 1, Part 2, Part 3 or all three at once and get that part's study pack and online practice.

CIA Part 3

Internal Audit Function

208questions
  • 4 sections
  • 100-q blueprint
  • 120 min mock
Topic practice available

A CIA membership covering Part 3 unlocks the study pack and practice below.

Blueprint-based mocks

Balanced to the current syllabus domains.

Every full-length mock selects reviewed, distinct questions in the configured syllabus proportions rather than drawing freely from the whole bank.

01
CIA Part 1

125-question mock

  • Foundations of Internal Auditing44 35%
  • Ethics and Professionalism25 20%
  • Governance, Risk Management, and Control37 30%
  • Fraud Risks19 15%
02
CIA Part 2

100-question mock

  • Engagement Planning50 50%
  • Information Gathering and Evaluation40 40%
  • Engagement Supervision and Communication10 10%
03
CIA Part 3

100-question mock

  • Internal Audit Operations25 25%
  • Internal Audit Plan15 15%
  • Quality of the Internal Audit Function15 15%
  • Engagement Results and Monitoring45 45%

Documents for your preparation

Revision-notes library

Buy and download individual documents, or access included documents with a CIA membership covering the relevant part. CIA memberships are separate from other resource plans.

Thumbnail preview of CIA Part II Study Pack
Study Guide 2026
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CIA Part 2 General Study Guide 2026

CIA Part II Study Pack for the Certified Internal Auditor (CIA) 2025 revised syllabus by The Institute of Internal Auditors (IIA). Covers Engagement Planning, Engagement Execution, Communicating Engagement Results and Monitoring Progress for effective CIA Part 2 preparation and revision.

Build your understanding

CIA study packs

Each pack is by part and unlocks with the matching CIA membership. Study guides are read online — every document in the pack is included in your membership.

About the certification

The CIA exam, explained.

The Certified Internal Auditor (CIA) is the global professional certification for internal auditors — a designation that signals mastery of the professional practice of internal auditing: delivering independent, objective assurance and advisory work that helps organisations manage risk, strengthen control and improve governance. Recognised by employers, boards and regulators around the world, it is the credential most often expected of senior audit and chief audit executive (CAE) roles.

The exam is set and awarded by The Institute of Internal Auditors (The IIA) — the worldwide professional association for the internal audit profession, established in 1941 and headquartered in Lake Mary, Florida. The IIA publishes the standards and the code of ethics that internal auditors work to, and it administers the CIA programme in more than 170 countries. A CIA therefore stands for the same standard of knowledge and conduct, whether you practise in Nairobi, London or Dubai.

The CIA is written for people who practise — or intend to practise — internal auditing: internal audit staff and management, accountants and auditors moving into the field, and risk, compliance, governance and controls professionals whose work depends on a credible audit function. If you are starting out and want a recognised professional base, or you are an experienced auditor preparing for leadership, the CIA is the target worth aiming for.

Audit professional reviewing analytical reports and control documentation

Offered by The IIA

The Institute of Internal Auditors is the body behind the CIA — it maintains the syllabus, sets the standards and awards the credential to candidates who qualify.

theiia.org

Who it is for

Current and aspiring internal auditors, plus assurance, risk, compliance, governance and finance professionals building a career in internal audit.

What earning it takes

Pass all three parts of the exam, meet an education requirement, complete qualifying internal audit experience and uphold The IIA Code of Ethics.

Part 1

Internal Audit Fundamentals

125 questions · 150 minutes

The foundations of the profession — independence and objectivity, governance, risk management and control, and fraud awareness.

Part 2

Internal Audit Engagement

100 questions · 120 minutes

Planning and performing engagements — gathering information, analysing evidence, supervision and engagement communication.

Part 3

Internal Audit Function

100 questions · 120 minutes

Managing the internal audit function — operations, the audit plan, quality, and communicating results and monitoring actions.

Candidates sit each part separately at an authorised test centre and must pass all three, within The IIA's eligibility rules, to earn the CIA. Learn more from The IIA.

MasomoHub provides independent study resources. Practice results are learning feedback and do not predict an official examination score. View the official syllabus.