How many parts is the CIA exam?

Three parts under the 2025 syllabus: Internal Audit Fundamentals, Internal Audit Engagement, and Internal Audit Function.

How long is each CIA part?

Part 1 is 125 questions in 150 minutes. Parts 2 and 3 are 100 questions in 120 minutes each.

Did the CIA syllabus change in 2025?

Yes. Part titles and domain weights were revised. Confirm the active IIA syllabus PDF before you study from older outlines.

Does MiloPrep cover all three CIA parts?

Yes. The all-access subscription includes practice for all three parts.

Where do these CIA facts come from?

From The IIA’s CIA materials linked in the official source callout, including the 2025 syllabus change documentation.

How many sittings does the CIA exam include?

CIA is structured as 3 parts. On this site we track 3 sittings: Part 1 - Internal Audit Fundamentals, Part 2 - Internal Audit Engagement, Part 3 - Internal Audit Function. Confirm current windows on Institute of Internal Auditors pages.

CIA · Part 3 - Internal Audit Function

How to pass CIA Part 3 - Internal Audit Function

Running the internal audit function: operations, planning, quality, and engagement results monitoring. 100 questions in 120 minutes. This pass plan ties weights, format, and failure modes into one weekly loop. Part 1 is 125 questions in 150 minutes. Use MiloPrep tools to plan hours for CIA alongside practice in the app.

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Duration

120 min

Questions

100

Sims / cases

—

Topics

Who this fits

Fits you if

Internal auditors, risk and controls staff, and governance professionals who want the globally recognised internal audit certification.

Skip if

Candidates who need a CPA licence for external attest, or who want a corporate FP&A programme such as CMA rather than assurance work.

Pass plan

Step 1
Lock the blueprint
List every Part 3 - Internal Audit Function content area and its weight range before you open a course chapter. High-weight bands get calendar priority even when they feel familiar.
Step 2
Drill the format
Practise Multiple choice under partial timing, then full sitting length near 120 minutes. Format skill is a separate skill from content recall.
Step 3
Study the 2025 syllabus titles, not legacy names
If your notes still say Essentials / Practice / Business Knowledge, remap them to Fundamentals / Engagement / Function before you drill. Tie this stage to the published CIA weights before you expand reading. Watch for: Memorising Standard numbers without practising scenario questions that ask which Standard or principle applies.
Step 4
Anchor Part 1 on Standards and ethics scenarios
Foundations and Ethics are large. Practise which principle applies, not only definitions. Tie this stage to the published CIA weights before you expand reading. Watch for: Jumping to fieldwork techniques without locking down risk-based planning and scope decisions that dominate Part 2 weight.
Step 5
Give Engagement Planning half your Part 2 time
Planning is half of Part 2 under the 2025 weights. Scope and risk-based planning deserve calendar priority. Tie this stage to the published CIA weights before you expand reading. Watch for: Studying only engagement fieldwork from older Part 2 materials and missing the 2025 Part 3 emphasis on function-level quality and results monitoring.
Step 6
Attack the known failure mode
Studying only engagement fieldwork from older Part 2 materials and missing the 2025 Part 3 emphasis on function-level quality and results monitoring. Build two drills this week that force that exact miss pattern into the open.

Part 3 - Internal Audit Function pass checklist

Weights listed and calendarized
Timed block near 120 minutes completed
Error log has at least 10 recent misses with rules
Failure mode addressed: Studying only engagement fieldwork from older Part 2 materials and missing the 2…
Retake rules checked only after a real readiness mock

CIA study-week checklist

Open the CIA hub and mark which sittings you will book first.
Spend at least one block on Part 1 - Internal Audit Fundamentals high-weight topics.
Run one mixed set, then log every stem you missed with the correct rule.
Schedule one timed block near published sitting length this week.
Revisit one troubleshooting symptom from the hub and apply the next step.

Pro tip

Standards application stems: Ask which Standard or principle governs the scenario. Number recall without application underperforms.

Tip 2

Engagement planning decisions: Practise objectives, scope, and resource choices before fieldwork technique drills.

Tip 3

If using 2019 part names and failing new mocks, Print the 2025 domain map and re-file every note under the new part titles.

Tip 4

If part 2 fieldwork feels fine but scores lag, Make planning scenarios half of every Part 2 study block.

Without structured practiceWith MiloPrep-style loops

Read chapters end-to-end with no weight mapBudget weeks to published CIA content-area ranges

Untimed question dumps until exhaustionShort diagnostics → mixed drills → timed sitting blocks

Ignore format (sims / cases / item sets)Separate format drills that match each sitting

Repeat the same miss with no error logLog stem mistakes and retest within 72 hours

Approach	Best for	Watch-out
Part-by-part sprint	Candidates sitting one CIA part soon	Leaving neighbouring topics cold
Weight-first calendar	Working professionals with limited hours	Skipping format practice
Full mock weeks	Final 3–4 weeks before a sitting	Using mocks before a baseline exists

Part 3 - Internal Audit Function topic weights

Topic	Weight
Internal Audit Operations	25%
Internal Audit Plan	15%
Quality of the Internal Audit Function	15%
Engagement Results and Monitoring	45%

Confirm numbers on official pages

Part question counts, durations, and domain weights follow The IIA’s 2025 CIA syllabus refresh. Part titles and domain names changed from the 2019 syllabus; older prep materials may still use prior part names. Confirm the active syllabus PDF on theiia.org before treating any domain percentage as final for your sitting.

How we review structure facts

MiloPrep cites awarding-body materials for CIA. Fees and pass rates are excluded when they move too often to state as facts.

Practice access

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Next steps

Part 3 - Internal Audit Function hub

Format and topics for Part 3 - Internal Audit Function.

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Part 3 - Internal Audit Function practice

Blueprint explorer and sample question.

Practice

How to study

Study approach for CIA.

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CIA FAQs

How many parts is the CIA exam?: Three parts under the 2025 syllabus: Internal Audit Fundamentals, Internal Audit Engagement, and Internal Audit Function.
How long is each CIA part?: Part 1 is 125 questions in 150 minutes. Parts 2 and 3 are 100 questions in 120 minutes each.
Did the CIA syllabus change in 2025?: Yes. Part titles and domain weights were revised. Confirm the active IIA syllabus PDF before you study from older outlines.
Does MiloPrep cover all three CIA parts?: Yes. The all-access subscription includes practice for all three parts.
Where do these CIA facts come from?: From The IIA’s CIA materials linked in the official source callout, including the 2025 syllabus change documentation.
How many sittings does the CIA exam include?: CIA is structured as 3 parts. On this site we track 3 sittings: Part 1 - Internal Audit Fundamentals, Part 2 - Internal Audit Engagement, Part 3 - Internal Audit Function. Confirm current windows on Institute of Internal Auditors pages.
What question format should I expect on CIA Part 1 - Internal Audit Fundamentals?: Part 1 - Internal Audit Fundamentals uses Multiple choice across about 125 scored items, with roughly 150 minutes of content time. Always re-check Institute of Internal Auditors before you book.