This report delves into the significance of ethics in business decisions, particularly within the context of the Commonwealth Bank of Australia (CBA). It analyzes the positive impact of ethical practices on employee treatment, competition, financial activities, and social impact. The report highlights CBA's commitment to ethics through its policies, practices, and rules, including its Code of Conduct, Anti-Money Laundering and Counter Terrorism Financing measures, Code of Banking Practice, insider trading guidelines, political donation restrictions, Group Whistle Blower Policy, and Anti-Bribery and Corruption Policy. Furthermore, it examines specific ethical decisions made by CBA, such as investments in computer systems and programs designed to support individuals facing financial hardship, including victims of domestic violence. The report concludes by emphasizing the relevance of ethics in small businesses and underscoring CBA's dedication to serving society's needs.