This case study examines Bell Studio, an Adelaide-based wholesaler, focusing on its expenditure cycle, encompassing purchase, payroll, and cash disbursement systems. The analysis includes data flow diagrams and system flowcharts to illustrate the processes within these systems. The report identifies potential risks and weaknesses in internal controls, offering insights into the company's financial and operational management. The study evaluates the internal control mechanisms and their effectiveness in mitigating potential issues. The report also highlights the importance of internal control for maintaining efficiency and reducing risks. The document provides a comprehensive overview of the expenditure cycle, aiming to provide a clear understanding of the business operations and potential areas for improvement.