This essay delves into the critical aspects of accounting ethics and sustainability, addressing ethical dilemmas and sustainability challenges that the accounting profession faces. The first part of the essay examines ethical dilemmas like conflict of interest, pressure from management, and fraudulent activities, using the Toshiba scandal as a case study to illustrate these issues. It explores the impact of these dilemmas on the accounting profession's reputation and the public interest. The second part of the essay focuses on sustainability challenges that impact the accounting profession. The essay also identifies affected parties, discusses the importance of ethics in accounting, and proposes solutions to prevent ethical issues, including the implementation of ethical training and improved corporate governance. The essay concludes by examining the fundamental principles impacted in the Toshiba case, such as integrity, objectivity, professional competence, confidentiality, and professional behavior and threats to compliance with fundamental ethical principles.