IAASB: FAQ – ISSA 5000 sustainability reports in the EU

IAASB: FAQ – ISSA 5000 sustainability reports in the EU logo

Summary:
The International Auditing and Assurance Standards Board (IAASB) has released a Frequently Asked Questions (FAQ) Document on the relevance of ISSA 5000 to assurance on sustainability reports to be issued in the European Union (EU).


Article:

The International Standard on Sustainability Assurance (ISSA) 5000, deals with General Requirements for Sustainability Assurance Engagements.

This FAQ consists of 10 FAQs with answers. 

It provides a high-level understanding of how ISSA 5000 can support consistent, high-quality sustainability assurance engagements in the EU—enhancing users’ confidence in sustainability information prepared in accordance with the European Sustainability Reporting Standards.

Click here to download the 6-page document:

https://ifacweb.blob.core.windows.net/publicfiles/2025-11/IAASB-ISSA-5000-FAQ-Relevant-to-European-Union.pdf 

Relevance to Auditors, Independent Reviewers & Accountants:

  • As an auditor and independent reviewer, you need to comply with International Standards on Auditing and other Assurance Services – including Sustainability Assurance, and thus you need knowledge of relevant standards that apply as well as when they become effective, and which implementation support is available to you.
  • Failure to adhere to ISAs may be interpreted as negligence and you could be held liable.
  • As an auditor, independent reviewer and sustainability assurance practitioner, you should be aware of standards and publications (like guidance and support materials) issued by the standard-setting bodies, e.g. the IAASB.

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