Glossary/Engagements and reports

Examination (attestation) engagement

An examination is an attestation engagement in which the practitioner gathers enough evidence to give an opinion, with reasonable assurance, on subject matter or an assertion measured against suitable criteria.

CORAA TeamUpdated November 5, 2026

Definition

An examination under AT-C 205 is the attestation counterpart of an audit. It applies to subject matter other than historical financial statements, or to an assertion about that subject matter, evaluated against suitable criteria. The practitioner obtains sufficient appropriate evidence and expresses an opinion with reasonable assurance. A review engagement under AT-C 210 offers limited assurance instead.

Why it matters in an audit or review

Examinations cover things like compliance with laws, key performance indicators, greenhouse gas statements, and controls at a service organization. Criteria must be suitable and available to users, or the practitioner cannot accept the engagement. The practitioner reports on the subject matter or on management's assertion, and the report states which one.

Example

Illustrative: a company asserts that it complied with the reporting covenants in a loan agreement during the year. The practitioner examines the covenant calculations against the loan terms and opines on whether management's assertion of compliance is fairly stated in all material respects. Compliance engagements also draw on AT-C 315.

Common mistakes

Accepting an engagement with criteria that exist only in management's head. If users cannot see how the subject matter was measured, the criteria are not suitable.

FAQ

Is an examination an audit?

No. An audit covers historical financial statements under AU-C. An examination covers other subject matter under AT-C.

Sources

  • AICPA, AT-C Section 105, Concepts Common to All Attestation Engagements (suitable criteria)
  • AICPA, AT-C Section 205, Assertion-Based Examination Engagements
  • AICPA, AT-C Section 210, Review Engagements
  • AICPA, AT-C Section 315, Compliance Attestation

Definitions paraphrase AICPA and FASB guidance; read the standard itself before relying on a requirement. Example figures are illustrative. This page is guidance, not professional advice. Report an error

Standards

AT-C 105AT-C 205

Related terms

  • Agreed-upon procedures (AUP)
    An agreed-upon procedures engagement has the practitioner perform procedures agreed with the engaging party and report the findings. The report gives no opinion, no conclusion and no assurance on the subject matter.
  • SOC examination (SOC 1, SOC 2, SOC 3)
    A SOC examination is an attestation report on a service organization: SOC 1 covers controls relevant to customers' financial reporting, while SOC 2 and SOC 3 cover trust services criteria.
  • AU-C, AR-C and AT-C (SAS, SSARS, SSAE)
    AU-C sections come from Statements on Auditing Standards, AR-C from SSARS, and AT-C from SSAE; each codifies the AICPA standards for audits, review and compilation work, and attestation engagements of nonissuers.

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