I study Islamic accounting and how it is developed in the marketplace, especially in the banking sector. There are many types of research study and explain the differences between conventional and Islamic banking, and how the accounting standards differ from Islamic accounting. Almost all of the previous studies depend on the comparison between specific ratios by analyzing the annual reports and studying the differences between these ratios. In this research, data are collected through an interview to explain how Islamic banking differs from conventional banking. The results of this study explain the main differences between both banks which are in the interest in loans and deposits, how the banks finance their clients and accept their deposits, the differences in risk management, and how they can invest their money without violation of Sharia.