ISAE 3000 (Revised), Assurance Engagements Other than Audits or Reviews of Historical Financial Information

Assurance engagements include both attestation engagements, in which a party other than the practitioner measures or evaluates the underlying subject matter against the criteria, and direct engagements, in which the practitioner measures or evaluates the underlying subject matter against the criteria. This ISAE contains requirements and application and other explanatory material specific to reasonable and limited assurance attestation engagements. This ISAE may also be applied to reasonable and limited assurance direct engagements, adapted and supplemented as necessary in the engagement circumstances.

Argo Audit as member of  the Greek CPA’s Professional Body (S.O.E.L) and registered in the Public Register renders special audit services according to ISAE 3000 – “Assurance Engagements Other than Audits or Reviews of Historical Financial Information”.


The objective of an agreed-upon procedures engagement is for the auditor to carry out procedures of an audit nature to which the auditor and the entity and any appropriate third parties have agreed and to report on factual findings.

As the auditor simply provides a report of the factual findings of agreed-upon procedures, no assurance is expressed. Instead, users of the report assess for themselves the procedures and findings reported by the auditor and draw their own conclusions from the auditor’s work.

The report is restricted to those parties that have agreed to the procedures to be performed since others, unaware of the reasons for the procedures, may misinterpret the results.

The auditor should comply with the Code of Ethics for Professional Accountants issued by the International Ethics Standards Board for Accountants (the IESBA Code).

The auditor should plan the work so that an effective engagement will be performed.

The auditor should document matters which are important in providing evidence to support the report of factual findings, and evidence that the engagement was carried out in accordance with this ISRS and the terms of the engagement.

The auditor should carry out the procedures agreed upon and use the evidence obtained as the basis for the report of factual findings.

The procedures applied in an engagement to perform agreed-upon procedures may include the following:

  • Inquiry and analysis.
  • Recomputation, comparison and other clerical accuracy checks.
  • Observation.
  • Inspection.
  • Obtaining confirmations.

The report on an agreed-upon procedures engagement needs to describe the purpose and the agreed-upon procedures of the engagement in sufficient detail to enable the reader to understand the nature and the extent of the work performed.