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IAASB Issues Narrow-Scope Amendments Related to IESBA’s Using the Work of Experts

IAASB has released narrow-scope amendments to its standards arising from the International Ethics Standards Board for Accountants’ (IESBA) Using the Work of an External Expert Project.

These amendments respond to the IESBA’s recently approved revisions to its International Code of Ethics for Professional Accountants (including International Independence Standards), which introduced, among other provisions, explicit ethical requirements for using the work of external experts in audit, assurance and non-assurance engagements. These updates help to maintain interoperability between the IAASB standards and the IESBA Code.

The targeted amendments affect the following IAASB standards:

  • ISA 620, Using the Work of an Auditor’s Expert
  • ISRE 2400 (Revised), Engagements to Review Historical Financial Statements
  • ISAE 3000 (Revised), Assurance Engagements Other than Audits or Reviews of Historical Financial Information
  • ISRS 4400 (Revised), Agreed-upon Procedures Engagements

These amendments are effective for audits and reviews of financial statements for periods beginning on or after 15 December 2026, and for other assurance and related services engagements beginning on or after 15 December 2026.

ISCA will undertake the due process to adopt the amendments in Singapore.


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