Challenges of Implementing ISSA 5000 in AuditingSustainability Reports Under IFRS ‎SustainabilityStandards: Evidence from AuditorsIn Jordan and Palestine

  • Authors

    • Jamal Jamil Moh'd Milhem PhD Program in Accounting and Finance, Department of Administrative and Financial Sciences
    https://doi.org/10.14419/cdr7fa83

    Received date: December 30, 2025

    Accepted date: January 15, 2026

    Published date: January 23, 2026

  • ISSA 5000; IFRS S1; IFRS S2; Sustainability Assurance; Jordan; Palestine; Auditor Readiness; ‎Green Economy; Scope 3 Emissions
  • Abstract

    Despite the global momentum toward sustainability reporting, limited empirical evidence exists ‎on ISSA 5000 implementation readiness in developing economies‏. ‏This study investigates the ‎readiness of auditors in Jordan and Palestine to adopt ISSA 5000, the newly issued International ‎Standard on Sustainability Assurance, in auditing sustainability reports under the IFRS S1 and S2 ‎disclosure standards. With mandatory implementation expected by December 2026, assessing ‎implementation readiness and identifying key challenges are crucial for capacity building and ‎regulatory alignment.‎

    Data were collected from 123 professional auditors across both countries through a structured ‎questionnaire designed to test five hypotheses concerning awareness gaps, technical complexities, ‎competency deficits, regulatory constraints, and green economy incentives. The findings reveal ‎substantial awareness deficiencies, pronounced technical challenges, particularly in Scope 3 ‎emissions verification and climate scenario analysis, and significant competency gaps in ‎specialized sustainability assurance tools and expertise. Moreover, the regulatory environment ‎remains underdeveloped, characterized by unclear frameworks and limited client demand. While ‎green economy policies indicate promising potential, overall auditor awareness and corporate ‎engagement with sustainability reporting remain limited.‎

    The study provides essential baseline evidence on regional preparedness for ISSA 5000 ‎implementation and offers practical recommendations, including the establishment of targeted ‎national training programs, the development of Arabic technical guidance, regulatory mandates ‎for large entities, and the promotion of international collaborations. These findings advance the ‎understanding of sustainability assurance practices in emerging markets and offer actionable ‎insights for policymakers, professional bodies, audit firms, and international development ‎partners‎.

  • References

    1. Albu, N., & Toader, S. (2012). Switches in accounting regimes and challenges to professional judgement: The case of Romania. Journal of Account-ing & Organizational Change, 8(4), 448–468. https://doi.org/10.1504/IJCA.2012.046379.
    2. Amman Stock Exchange. (2024). Sustainability reporting rules. Amman Stock Exchange.
    3. Association of Banks in Jordan. (2024). The path towards sustainability: Report of the green finance. Sustainable Banking and Finance Network.
    4. Busch, J., Roell, M., Goldner, L., Willmes, P., & Büll, E. (2025). Current applications and challenges in large language models. Journal of Medical Internet Research, 27(1), e11751060.
    5. Carbon Trust. (2024). Scope 3 emissions measurement and verification: A practical guide. Carbon Trust.
    6. Casey, R. J., & Grenier, J. H. (2015). Understanding and contributing to the enigma of corporate social responsibility (CSR) assurance in the United States. Auditing: A Journal of Practice & Theory, 34(1), 97–130. https://doi.org/10.2308/ajpt-50736.
    7. Channuntapipat, C., Samsonova-Taddei, A., & Turley, S. (2020). Exploring diversity in sustainability assurance practice. Accounting, Auditing & Accountability Journal, 33(8), 1995–2023.
    8. Cheetham, G., & Chivers, G. (2005). Professions, competence, and informal learning. Edward Elgar.
    9. Churchill, G. A. (1979). A paradigm for developing better measures of marketing constructs. Journal of Marketing Research, 16(1), 64–73. https://doi.org/10.1177/002224377901600110.
    10. Cohen, J. R., & Simnett, R. (2015). CSR and assurance services: A research agenda. Auditing: A Journal of Practice & Theory, 34(1), 59–74. https://doi.org/10.2308/ajpt-50876.
    11. Deegan, C. (2002). Introduction: The legitimising effect of social and environmental disclosures—A theoretical foundation. Accounting, Auditing & Accountability Journal, 15(3), 282–311. https://doi.org/10.1108/09513570210435852.
    12. DeVellis, R. F. (2017). Scale development: Theory and applications (4th ed.). SAGE.
    13. Deloitte. (2024). ISSA 5000 implementation roadmap. Deloitte.
    14. DiMaggio, P. J., & Powell, W. W. (1983). The iron cage revisited: Institutional isomorphism and collective rationality in organizational fields. American Sociological Review, 48(2), 147–160. https://doi.org/10.2307/2095101.
    15. European Commission. (2022). Commission implementing decision on the financing of the annual action plan in favour of Palestine for 2022. Euro-pean Neighbourhood Policy.
    16. European Commission. (2023). Corporate Sustainability Reporting Directive (CSRD). Official Journal of the European Union.
    17. European External Action Service. (2022, March). Team Europe signs EUR 200 million in agreements to boost the Palestinian economy. EEAS.
    18. European External Action Service. (2023, September). Greening Palestinian economy: Team Europe launches joint initiatives to support green growth. EEAS.
    19. Freeman, R. E. (1984). Strategic management: A stakeholder approach. Pitman.
    20. GIZ (Deutsche Gesellschaft für Internationale Zusammenarbeit). (2023). Green Growth Palestine project. GIZ Palestine.
    21. Grant Thornton International. (2023). IFRS S1 and IFRS S2: Overview of the new sustainability disclosure standards. Grant Thornton.
    22. Haji, A. A., & Anifowose, M. (2016). Audit committee and integrated reporting practice: Does internal assurance matter? Managerial Auditing Journal, 31(8/9), 915–948. https://doi.org/10.1108/MAJ-12-2015-1293.
    23. Hahn, R., Reimsbach, D., & Schiemann, F. (2015). Organizations, climate change, and transparency: Reviewing the literature on carbon disclosure. Organization & Environment, 28(1), 80–102. https://doi.org/10.1177/1086026615575542.
    24. IAASB. (2013). ISAE 3000 (Revised): Assurance engagements other than audits or reviews of historical financial information. IFAC.
    25. IAASB (International Auditing and Assurance Standards Board). (2024). International Standard on Sustainability Assurance (ISSA) 5000: General requirements for sustainability assurance engagements. IFAC.
    26. IBM. (2024). Global adoption of IFRS Sustainability Standards. International Business Machines Corporation.
    27. ICAS (Institute of Chartered Accountants of Scotland). (2021). Carbon accounting competencies for professional accountants. ICAS. https://doi.org/10.4324/9781003052753.
    28. IFAC (International Federation of Accountants). (2024, October). IAASB approves landmark ISSA 5000 standard: A new era for sustainability as-surance. IFAC Knowledge Gateway.
    29. IFRS Foundation. (2023, June). ISSB issues inaugural global sustainability disclosure standards.
    30. Ioannou, I., & Serafeim, G. (2017). The consequences of mandatory corporate sustainability reporting. Harvard Business School Working Paper No. 11-100.
    31. ISSB (International Sustainability Standards Board). (2023a). IFRS S1 General Requirements for Disclosure of Sustainability-related Financial In-formation. IFRS Foundation.
    32. ISSB (International Sustainability Standards Board). (2023b). IFRS S2 Climate-related Disclosures. IFRS Foundation.
    33. Jordan News Agency (Petra). (2024, December). Jordan session discusses the green economy sector under economic modernisation vision. Zawya.
    34. Kolk, A., & Perego, P. (2010). Determinants of the adoption of sustainability assurance statements: An international investigation. Business Strate-gy and the Environment, 19(3), 182–198. https://doi.org/10.1002/bse.643.
    35. KPMG. (2020). The time has come: The KPMG survey of sustainability reporting 2020. KPMG International.
    36. KPMG International. (2025). ISSA 5000: An enhanced assurance standard for sustainability reporting. KPMG.
    37. La Torre, M., Sabelfeld, S., Blomkvist, M., Tarquinio, L., & Dumay, J. (2018). Harmonising non-financial reporting regulation in Europe: Practical forces and projections for future research. Meditari Accountancy Research, 26(4), 598–621. https://doi.org/10.1108/MEDAR-02-2018-0290.
    38. Leaders International. (2025). The green economy in Jordan: Sustainability leading the way for growth. Leaders International.
    39. Linklaters LLP. (2024, November). Sustainability assurance: ISSA 5000 is published, European standards under development. Sustainable Futures Blog.
    40. Marquis, C., & Toffel, M. W. (2012). When do firms greenwash? Corporate visibility, civil society scrutiny, and environmental disclosure. Harvard Business School Working Paper.
    41. Milhem, J. J. (2025). Sustainability Disclosure Standards IFRS S1 and S2, Readiness for Implementation: Case of Palestinian Listed Companies. An-Najah University Journal for Research – B (Humanities), 39(11), 973–996. https://doi.org/10.35552/0247.39.11.2504.
    42. Ministry of Environment Jordan. (2017). A national green growth plan for Jordan. Government of Jordan.
    43. Mitchell, R. K., Agle, B. R., & Wood, D. J. (1997). Toward a theory of stakeholder identification and salience: Defining the principle of who and what really counts. Academy of Management Review, 22(4), 853–886. https://doi.org/10.2307/259247.
    44. Mock, T. J., Strohm, C., & Swartz, K. M. (2013). An examination of worldwide assured sustainability reporting. Australian Accounting Review, 17(1), 67–77. https://doi.org/10.1111/j.1835-2561.2007.tb00455.x.
    45. Palestinian Authority; Ministry of National Economy. (2023). National development plan 2021–2023. Palestinian Authority.
    46. Pflugrath, G., Roebuck, P., & Simnett, R. (2011). Impact of assurance and assurer's professional affiliation on financial analysts' assessment of credibility of corporate social responsibility information. Auditing: A Journal of Practice & Theory, 30(3), 239–254. https://doi.org/10.2308/ajpt-10047.
    47. Power, M. (2003). Auditing and the production of legitimacy. Accounting, Organizations and Society, 28(4), 379–394. https://doi.org/10.1016/S0361-3682(01)00047-2.
    48. PricewaterhouseCoopers. (2024, November). IAASB approved standard: International Standard on Sustainability Assurance (ISSA) 5000. PwC Viewpoint.
    49. Protiviti Inc. (2024). ISSA 5000: Global standard – What this means for you. Protiviti.
    50. Richardson, A. J., & Eberlein, B. (2011). Legitimating transnational standard-setting: The case of the International Accounting Standards Board. Journal of Business Ethics, 98(2), 217–245. https://doi.org/10.1007/s10551-010-0543-9.
    51. Sierra-García, L., Zorio-Grima, A., & García-Benau, M. A. (2023). Determinants of sustainability assurance quality: An analysis from the provider's perspective. Business Strategy and the Environment, 32(1), 295–312.
    52. Simnett, R., Vanstraelen, A., & Chua, W. F. (2009). Assurance on sustainability reports: An international comparison. The Accounting Review, 84(3), 937–967. https://doi.org/10.2308/accr.2009.84.3.937.
    53. Suchman, M. C. (1995). Managing legitimacy: Strategic and institutional approaches. Academy of Management Review, 20(3), 571–610. https://doi.org/10.2307/258788.
    54. U.S. Department of Commerce International Trade Administration. (2024). Jordan renewable energy: Market overview. U.S. Trade Department.
    55. United Nations Development Program. (2021). Energy Sector Green Growth National Action Plan 2021–2025. UNDP Jordan.
  • Downloads

  • How to Cite

    Milhem, J. J. M. . (2026). Challenges of Implementing ISSA 5000 in AuditingSustainability Reports Under IFRS ‎SustainabilityStandards: Evidence from AuditorsIn Jordan and Palestine. International Journal of Accounting and Economics Studies, 13(1), 339-349. https://doi.org/10.14419/cdr7fa83