IAASB: FAQ – ISSA 5000 sustainability reports in the EU
02 December 2025
Sustainability Reporting
South African Accounting Academy
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.
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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