The evolution of financial reporting standards has been marked by significant shifts from the traditional Generally Accepted Accounting Principles (GAAP) to the globally recognized International Financial Reporting Standards (IFRS). This research explores the historical development, key differences, and implications of transitioning from GAAP to IFRS, along with emerging trends that may shape the future of financial reporting. Through a mixed-methods approach, including qualitative interviews with accounting professionals, auditors, regulatory bodies, and quantitative analysis of financial data from organizations that have undergone this transition, the study aims to provide a comprehensive understanding of the impact of IFRS adoption on financial transparency, comparability, corporate governance, and investor behavior. The findings indicate that IFRS adoption improves financial transparency and comparability, positively influences corporate governance, and enhances investor confidence. Furthermore, the study highlights the growing importance of Integrated Reporting (IR) and Sustainability Reporting, as well as the transformative role of technology in financial reporting. Future research should focus on longitudinal studies to assess the long-term impacts of IFRS adoption and explore the integration of emerging technologies, such as blockchain and artificial intelligence, in financial reporting. These insights will be valuable for policymakers, businesses, and stakeholders in navigating the evolving landscape of financial reporting, ensuring better decision-making and enhanced global financial coherence.