Key Audit Matters and Sectoral Analyses of Companies in BIST 30 For 2024: A Review of Reports from Big Four International Audit Firms

Authors : Mehmet Furkan Özdemir, Ali Rıza Zafer Sayar

Pages : 184-196

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Publication Date : 2025-08-01

Article Type : Research Paper

Abstract :The 2008–2009 global financial crisis revealed significant shortcomings in the transparency and effectiveness of external audit practices. A key reform introduced by regulatory bodies was the mandatory disclosure of Key Audit Matters (KAMs) under ISA 701. This study focuses exclusively on BIST 30 companies audited by Big Four audit firms (PwC, EY, KPMG, Deloitte) in 2024. It explores how sector-specific factors shape the nature and frequency of KAMs. Contrary to earlier suggestions of comparisons with non-Big Four firms, this study explicitly excludes such analysis and does not aim to contrast audit quality across different firm types. This study employs a hybrid content analysis, combining qualitative thematic coding with descriptive statistical summaries (frequencies and distributions). It does not incorporate inferential or causal statistical testing; thus, it should be classified as a qualitative-dominant design. While themes are extracted using peer-coded content analysis, the study remains descriptive in nature and does not claim to conduct causal or inferential statistical tests. Findings contribute to understanding how standardized audit reporting by the Big Four reflects sector-specific risks.
Keywords : Kilit Denetim Konuları (KDK), BIST 30, Büyük Dörtlü Denetim Firmaları, Bağımsız Denetim Raporları, Sektörel Dağılım

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