This report provides an in-depth analysis of the Activity-Based Costing (ABC) system and its implications across various business sectors. It evaluates the effectiveness of ABC by examining two journal articles that demonstrate how businesses use ABC to improve cost reporting. The study highlights the transition from traditional costing methods to ABC, emphasizing the benefits of ABC in identifying and allocating costs more accurately, particularly in businesses with multiple product lines. The report also discusses the methodology of conducting ABC, including the classification of short-term and long-term costs, and outlines the objectives of implementing ABC to rectify inaccuracies in traditional costing, improve cost allocation, and enhance decision-making. Furthermore, the analysis of the two journal articles reveals the advantages of ABC in both service industries and public-sector entities, showcasing its role in improving transparency, accountability, and overall cost management. The report concludes with specific outcomes beneficial for Australian management accountants, suggesting improvements in costing systems through the adoption of ABC.