Ethics are the philosophical, cultural and spiritual values and behaviors that people have too beyand follow. The bases of Islamic ethics are the Quran and Sunnah considering ethics from the viewpoint of Islam. The behaviors of the society, code of conducts and even accounting system were determined through Qur’an and Sunnah. Moral education in accounting rises in importance day by day in order to protect the rights of the parties in trade and avoid fraudulent financial reporting and auditing errors. The development of accounting in Islam has begun with Zakat and according to Islamic accounting the amount of Zakat was calculated based on the tax assessment of the business. Inrespect of the Islamic ethics, a verse from the Quran clearly expresses how to carry out the trade activities. In this study, Islamic ethics and its effects on accounting will be explained.