Glossary · AI governance

An AI impact assessment asks who outside the company could be harmed.

A documented review of the consequences an AI system could have for individuals, groups and society across its life, used to decide whether and how to deploy it.

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01 · In plain words

In plain words

A documented review of the consequences an AI system could have for individuals, groups and society across its life, used to decide whether and how to deploy it.

Most risk reviews ask what could go wrong for the company. An AI impact assessment turns the question around: who could this system affect, and how? It looks at the people the system decides about, the groups it might treat unfairly, and the wider effects of using it at scale.

02 · Why it matters

Why it matters

Who cares about this, and what depends on it.

Several frameworks now expect one. ISO/IEC 42001 requires an organisation to assess the potential consequences of its AI systems for individuals, groups and society, and to use the result in its risk work; its Annex A carries matching controls. ISO/IEC 42005 gives guidance on how to run such an assessment. The EU AI Act asks certain deployers of high-risk systems, such as public bodies and some lenders and insurers, to complete a fundamental rights impact assessment before first use. The NIST AI Risk Management Framework's MAP function also centres on understanding context and impacts. For a buyer, a well-run assessment shows the supplier has thought about the people at the far end of the model, not only about uptime.

03 · Where you meet it

Where you will meet it

The documents, meetings and reports where it appears.

ISO/IEC 42001 clause 6.1.4
The requirement to assess AI system impacts, with related controls in Annex A.
ISO/IEC 42005
International guidance on how to carry out and document an AI system impact assessment.
EU AI Act Article 27
The fundamental rights impact assessment some deployers of high-risk systems must complete.
A product launch review
Where the assessment feeds the go or no-go decision and the conditions on release.

04 · An example

A worked example

An illustration, not a real client.

Illustrative: a staffing firm's CV-ranking tool

A staffing firm plans to rank applicants with a model trained on past placements. The impact assessment names the affected people: applicants, including those with career gaps or non-standard degrees, and the client employers. It finds that past placements reflected one city's hiring habits and that rejected applicants would never learn why. The firm retrains on wider data, shows recruiters the top factors behind each score, adds a route for applicants to ask for human review, and sets a quarterly check of outcomes across groups. Because recruitment tools are listed as high-risk under the EU AI Act, the record also supports its European deployments.

05 · Easy to mix up

Easy to mix up with

Neighbouring terms that mean something different.

AI risk assessment
Looks at risks to the organisation's objectives. The impact assessment looks at effects on people and society. ISO/IEC 42001 asks for both and links them.
DPIA
A data protection impact assessment covers risks to people from processing personal data. An AI impact assessment is wider: an AI system can cause harm without personal data, and a DPIA may cover only part of the picture.
Fundamental rights impact assessment
A specific EU AI Act duty for certain deployers of high-risk systems. It is one kind of AI impact assessment, with a set scope and a notification step.

06 · What to do

What to do with it

Practical steps, and the guides that go deeper.

  • Name the people and groups each AI system could affect, including those who never use it directly.
  • Record the plausible harms, their likelihood and severity, and the measures you will take.
  • Link each finding to your AI risk register and your DPIA where personal data is involved.
  • Repeat the assessment when the model, data or use changes, and keep the versions.

Sources: ISO/IEC 42001:2023 public description, clause 6.1.4 and Annex A titles; ISO/IEC 42005 public description; Regulation (EU) 2024/1689 (EU AI Act), Article 27 and Annex III; NIST AI Risk Management Framework 1.0 (NIST AI 100-1).

Questions about AI impact assessment

Is an AI impact assessment mandatory?

Under some frameworks and for some deployers.

It is a requirement if you seek ISO/IEC 42001 certification. Under the EU AI Act, the fundamental rights version is required for certain deployers of high-risk systems. Elsewhere it is good practice that buyers and regulators increasingly ask about.

Does ISO/IEC 42005 lead to a certificate?

No.

ISO/IEC 42005 is guidance on running impact assessments. Certification is against ISO/IEC 42001, by an accredited certification body; 42005 helps you meet 42001's impact requirement well.

Want this applied to your own systems?

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