PurposeThe purpose of this study is to delve into the complex interplay between earnings management (EM), the International Financial Reporting Standards (IFRS) implementation and the reporting lag (RL) within the specific context of the Gulf Cooperation Council (GCC) region, with a particular emphasis on the Saudi context, offering insights into their influence on financial reporting practices.Design/methodology/approachUsing a panel data set of 135 Saudi companies over an eight-year period, covering four years before and after the mandatory adoption of IFRS in 2017, this study investigates the Saudi financial reporting landscape. It uses interaction moderation analysis to explore variable effects and includes robustness analyses to validate the findings.FindingsThe findings reveal three key outcomes. First, they challenge conventional expectations by showing no significant impact of discretionary accruals (DACC) on RL, contrary to established accounting theories. This deviation is attributed to unique market characteristics within the GCC region, including family-owned businesses, government involvement and distinct regulations, with specific insights relevant to Saudi Arabia. Second, an unexpected positive association between IFRS adoption and RL in Saudi Arabia emerged. Several contextual factors contribute, including transition costs, compliance expenses, institutional dynamics and reconciling IFRS with local Shariah principles. Most importantly, IFRS adoption significantly reduced RL, especially for companies with high DACC levels. This highlights IFRS’s transformative role, emphasizes aligning EM with international standards for investor confidence and mitigating nonconformity risks in the GCC region’s business landscape.Practical implicationsThe research findings carry significant practical implications for companies operating within the GCC region, accentuating the strategic imperative of timely financial reporting to bolster credibility, align with international standards and fortify investor confidence. Moreover, regulators and policymakers are urged to consider tailoring accounting regulations to accommodate the distinctive GCC context, thereby adeptly addressing the intricacies stemming from the interplay of EM, IFRS adoption and RL dynamics in the region.Originality/valueThis study adds to the current body of literature by highlighting the significant moderating influence of IFRS transition on the nexus between DACC and RL. It underscores the crucial role of this global accounting framework in reshaping financial reporting practices.