AT-C 105 Concepts Common to All Attestation Engagements
Original Pronouncement
| Source | Statement on Standards for Attestation Engagements (SSAE) 18. |
Technical Alert
In May 2017, the ASB issued a new interpretation of AT-C 105, Performing and Reporting on Attestation Engagements Under Two Sets of Attestation Standards (May 2017). The Interpretation allows a practitioner to perform and report on an attestation engagement in accordance with AICPA standards and another set of attestation standards as long as both sets of standards are followed in their entirety. The Interpretation includes examples of report language to use under varying circumstances.
Applicability and Written Assertion
Section 105 applies to all engagements where a practitioner in public practice is engaged to issue an examination, review, or agreed-upon procedures report on another party's subject matter or assertion. (AT-C 105.01) The practitioner must request that the other party put the assertion in writing. The following table summarizes the practitioner's required course of action if a written assertion is not provided.
| Written Assertion Not Provided (AT-C 105.02) | ||
| Type of Engagement | Engaging Party Is Responsible Party and Refuses to Provide Written Assertion | Engaging Party Is Not Responsible Party and Refuses to Provide Written Assertion |
| Examination or review | Practitioner is required to withdraw from engagement. | Need not withdraw,* but must disclose refusal in report and restrict use of ... |