How SSAE examinations, reviews, and agreed-upon procedures differ by subject matter, criteria, assurance level, procedures, and report wording.
Attestation engagements let practitioners report on subject matter other than a traditional audit of historical financial statements. The subject matter may involve compliance, controls, greenhouse gas data, prospective financial information, system security, or another measurable assertion.
The AUD exam usually tests whether you can match the engagement type to the assurance level and report wording. Examinations provide reasonable assurance. Reviews provide limited assurance. Agreed-upon procedures engagements provide no assurance and report only factual findings.
flowchart TD
A["Attestation subject matter"] --> B{"What do users need?"}
B -- "Opinion with reasonable assurance" --> C["Examination"]
B -- "Limited assurance conclusion" --> D["Review"]
B -- "Specific factual findings only" --> E["Agreed-upon procedures"]
C --> F["Opinion against suitable criteria"]
D --> G["Negative assurance conclusion"]
E --> H["Procedures and findings; no opinion or conclusion"]
An attestation engagement requires subject matter and suitable criteria. The practitioner evaluates or reports on the subject matter against those criteria.
| Element | Meaning |
|---|---|
| Subject matter | The thing being measured, such as compliance with a debt covenant, controls at a service organization, or prospective financial information. |
| Criteria | The benchmark used to evaluate the subject matter, such as contract terms, regulatory requirements, Trust Services Criteria, or AICPA presentation guidelines. |
| Responsible party | The party responsible for the subject matter or assertion. |
| Practitioner | The CPA or firm performing the attestation engagement. |
| Intended users | The users expected to rely on the report. |
If the criteria are vague or unavailable to users, the engagement may not be appropriate because users cannot understand what the practitioner’s report means.
| Engagement | Assurance level | Main work | Report result |
|---|---|---|---|
| Examination | Reasonable assurance | Procedures sufficient to obtain reasonable assurance about whether the subject matter conforms with criteria. | Opinion. |
| Review | Limited assurance | Primarily inquiry and analytical procedures, plus other procedures when needed. | Negative assurance conclusion. |
| Agreed-upon procedures | No assurance | Procedures agreed to by the engaging party or specified parties. | Factual findings only. |
These categories are not ranked by importance. They serve different user needs. A lender may want only specific covenant recalculations through an AUP report, while a regulator may require an examination opinion.
An examination is the highest-assurance attestation engagement. The practitioner obtains sufficient appropriate evidence to express an opinion on whether the subject matter is in accordance with the criteria, in all material respects.
Examination examples include:
The report uses opinion-style language. That is the clue that the practitioner is giving reasonable assurance.
A review provides limited assurance. The practitioner performs procedures that are substantially less in scope than an examination, commonly inquiry and analytical procedures, and expresses a conclusion in negative assurance form.
Review wording often follows this logic: nothing came to the practitioner’s attention that caused the practitioner to believe the subject matter is not in accordance with the criteria.
Reviews are useful when users want more than factual findings but do not need the cost or depth of an examination. A review is not the same as a SSARS review of financial statements, but the assurance concept is similar.
An agreed-upon procedures engagement reports procedures performed and findings obtained. The practitioner does not decide whether the subject matter is fairly stated, effective, or compliant overall. Users draw their own conclusions from the reported findings.
| AUP feature | Exam meaning |
|---|---|
| Procedures are specified | The practitioner performs only the procedures agreed to for the engagement. |
| Findings are factual | The report describes results such as exceptions, counts, matches, or recalculations. |
| No opinion or conclusion | The practitioner does not provide assurance. |
| Wording must be objective | The report should not use vague evaluative language such as “reasonable” unless the procedure defines how to determine it. |
For example, an AUP report might state that the practitioner recalculated a covenant ratio for 25 agreements and found 2 exceptions. It should not say the entity is in compliance overall unless that is part of an examination conclusion.
| User need | Best fit |
|---|---|
| Broad assurance that subject matter conforms with criteria | Examination |
| Moderate comfort using limited procedures | Review |
| Specific testing steps and factual exception reporting | Agreed-upon procedures |
| Consulting advice or recommendations without attestation report | Consulting engagement, not SSAE attestation |
The practitioner should be alert for scope confusion. If users ask for an “opinion,” an AUP engagement is usually not enough. If users only need a specific recalculation, an examination may be more than necessary.
Use this sequence for SSAE engagement-type questions: