ICAEW Registered Auditors  ·  90+ UK-Based Experts

External Quality Assessment

Independent assessment of your internal audit function against the Global Internal Audit Standards, delivered by CMIIA-qualified assessors — full external quality assessment, validated self-assessment support, or preparation for someone else's review.

The Global Internal Audit Standards, effective January 2025, require that an external assessment "must be performed at least once every five years by a qualified, independent assessor or assessment team". That is Standard 8.4, in Domain III: Governing the Internal Audit Function — it sits under the board's oversight duties rather than in the quality principle, which is where most people look for it.

An EQA is not an audit of your organisation. It is an assessment of the audit function itself — its mandate, independence, positioning, resourcing, methodology, reporting and follow-up — and the deliverable your audit committee actually needs is not the conformance opinion but a prioritised, realistic plan for what to improve.

Full EQA or Validated Self-Assessment?

The Standards allow the five-year requirement to be met two ways, and both are legitimate.

A full external quality assessment is carried out by our team. You supply evidence and access; we do the assessment work. It suits a first assessment, a function under scrutiny, a newly appointed chief audit executive, or any situation where the audit committee wants maximum independence behind the opinion.

A validated self-assessment is carried out by your own function, with independent validation by our assessors. It asks more of your team and costs less, and it suits a mature function with capacity that is repeating an assessment after a clean prior cycle.

We will tell you which we think fits before you commission either, including when the answer is the cheaper one.

What We Assess

Conformance with the Standards is the floor, not the point. Our assessment covers the mandate and charter and whether board approval matches what the function actually does; independence and positioning, including reporting lines and real access to the board; audit committee oversight and whether it directs the function or receives its papers passively; resourcing, competency and access to specialist skills; whether the audit plan genuinely derives from the organisation's risks; engagement methodology, evidence and supervision; reporting quality and whether agreed actions are tracked to closure; and the internal half of your quality programme.

In our experience most adverse findings are evidence failures rather than capability failures — functions doing good work that keeps no record of supervision, review or the reasoning behind the plan.

Assessment Readiness

Where another firm will perform your EQA, we help you arrive ready. That means an honest self-assessment against the Standards with evidence referenced against each conclusion, an evidence pack covering the full period since the last assessment, and remediation of the gaps that are predictable — supervision and review evidence, the documented link from risk register to audit plan, an out-of-date charter, and independence safeguards that exist in practice but not on paper.

Readiness work reduces the assessor's time and improves the finding at the same time. It is worth starting twelve months out, because a quality programme cannot be created retrospectively without it being obvious.

Independence — Including Ours

An external assessment is worthless if the assessor is reviewing their own work or hopes to win the work they are reviewing. We will not assess an internal audit function we deliver or co-source, and we disclose any prior relationship with the organisation for the audit committee to consider before appointment rather than after.

If we intend to bid for related work, we say so up front. If you ask us to assess a function we already support, we will decline and say why — an opinion the committee cannot rely on is not worth buying.

One condition is not a matter of judgement: Standard 8.4 requires the chief audit executive to ensure at least one person on the assessment team holds an active Certified Internal Auditor designation. Ask any prospective assessor to evidence it, including us.

What You Receive

A written report addressed to the audit committee setting out the conformance conclusion against an agreed rating scale, the evidence behind it, and improvement recommendations prioritised by impact and realistic effort.

We agree the rating scale, the sampling approach and the draft-review process in the terms of reference, so nobody first sees a finding in a committee pack. We present the findings to the committee where that helps, and we convert the recommendations into an owned action plan you can report progress against — because an assessment that stops at the report changes nothing.

What You Get With Acumon

  • Full external quality assessment against the Global Internal Audit Standards
  • Validated self-assessment with independent validation
  • Assessment readiness support where another firm performs your EQA
  • Conformance opinion plus a prioritised, costed improvement plan
  • Rating scale, sampling and draft-review process agreed up front
  • Findings presented to the audit committee where that helps
  • Strict independence — we do not assess functions we deliver

Why Acumon for External Quality Assessment?

  • CMIIA-qualified assessors
  • Full EQA, validated self-assessment and readiness support
  • Independence maintained — we do not assess functions we deliver

Get a Fixed-Fee Quote

Tell us what you need and we'll come back within one business day with a clear scope and a fixed price — no hourly-rate surprises. Call 020 8567 3451 or use the form and we'll be in touch.

Common Questions

Frequently Asked Questions

How often is an external quality assessment required?
At least once every five years. The requirement is Standard 8.4, External Quality Assessment, in Domain III: Governing the Internal Audit Function of the Global Internal Audit Standards, which took effect in January 2025. It sits under the board's oversight duties, not in the quality principle. Count back from the deadline rather than forward from convenience — if your last assessment concluded in March 2022, the next must be complete by March 2027, which means appointing an assessor the year before.
What is the difference between a full EQA and a validated self-assessment?
Both satisfy the five-year requirement. Standard 8.4 says the requirement "may also be met through a self-assessment with independent validation" — the Chartered IIA markets its version as a Validated Self-Assessment. In a full external quality assessment an independent team carries out the assessment; in the validated route your own function does the assessment work and an independent assessor validates it. The validated route asks more of your team and costs less. The practical question is not which is more rigorous on paper but which produces a result your audit committee will believe — where the function is under scrutiny or the chief audit executive is new, a full assessment answers a question a self-assessment cannot.
Who is allowed to perform an EQA?
A qualified assessor independent of the organisation. That rules out the firm delivering or co-sourcing your internal audit, and it needs care where the assessor is also your external auditor or expects to bid for work arising from the findings. Lesser relationships do not automatically disqualify, but they should be disclosed and considered by the audit committee before appointment. On competence, look for genuine internal audit experience rather than statutory audit experience relabelled — they are different professions with different standards.
Is an EQA the same as our quality assurance and improvement programme?
No, and the distinction matters. Standard 8.3 requires the chief audit executive to develop, implement and maintain a quality assurance and improvement program covering all aspects of the function, and it includes two types of assessment — external under Standard 8.4, and internal under Standard 12.1. Internal assessment is continuous: ongoing monitoring of conformance, plus periodic self-assessments. Standard 12.1 also requires those internal assessments to be documented and included in the external assessor's evaluation, so a function with no internal quality records is withholding evidence the assessor is required to consider.
What does an EQA cost?
It depends on drivers you largely control: whether you take the full or validated route, the size and spread of the function, how many engagement files are sampled, how many stakeholder interviews are needed, and how ready you are. A function with a current self-assessment and an assembled evidence pack takes materially less assessor time than one reconstructing five years of records. We scope and quote after seeing the function rather than from a rate card.
What happens after the assessment?
The report is not the deliverable — the improvement plan is. We convert each recommendation into an owned action with a date, take it to the audit committee alongside the report, and support progress reporting during the year. Feeding the plan into your ongoing quality programme means the next assessment starts from a function that has demonstrably acted on the last one.
Get in Touch

Ready to Sort Your External Quality Assessment?

Tell us what you need. Within one business day, a qualified accountant will be in touch to talk it through and give you a clear, fixed-fee quote — no obligation.

Visit us1-2 Craven Road, Ealing, London, W5 2UA

Speak to a Specialist

Fill this in and we'll come back to you within one business day.

No obligation. Your details stay private.
Call Now Get in Touch