Wiley Practitioner's Guide to GAAS 2023, 2nd Edition

53AT-C 105 Concepts Common to All Attestation Engagements

• Technical Alert
• Scope and Written Assertion
• Objectives of AT-C
• Definitions of Terms
• Requirements
  • Quality Management
  • Compliance with Relevant AT-C Sections
  • Report Format Dictated by Law or Regulation
  • Professional Requirements in the Attestation Standards
  • Preconditions for an Attestation Engagement
  • Change in Terms of Engagement
  • Using the Work of Another Practitioner
  • Assignment of the Engagement Team and the Practitioner's Specialists
  • Documentation
  • Engagement Quality Control Review
  • Professional Skepticism and Professional Judgment
• Interpretations
  • 1. Responding to Requests for Reports on Matters Relating to Solvency
  • 2. Applicability of Attestation Standards to Litigation Services
  • 3. Providing Access to or Copies of Engagement Documentation to a Regulator
  • 4. Performing and Reporting on an Attestation Engagement Under Two Sets of Attestation Standards
• AT-C 105 Illustrations–Practitioner's Agreed-Upon Procedures Reports

TECHNICAL ALERT

In September 2020, the ASB issued Statement on Standards for Attestation Engagements (SSAE) No. 21, Direct Examination Engagements. SSAE No. 21 amends AT-C 105, Concepts Common to All Attestation Engagements. SSAE No. 21 is effective for reports dated on or after June 15, 2022, therefore, this volume includes its provisions. See the preface to this volume for an overview of SSAE No. 21.

SCOPE AND WRITTEN ASSERTION

Section 105 applies to all engagements where a practitioner in public ...