Salary is one of the important issues in this modern world and it has become the most prominent manifestation of the income of individuals in our time. This research study defined the 'earned wealth' and showed that wages and salaries are 'earned wealth' and as such is subject to zakaah. The researcher studied the 'earned wealth', presented what goes in this category and reported all ahaadeeth which speak of the requirement for paying zakaah one year after earning wealth. Religious scholars were cited to show which ahaadeeth are correct and which are weak. The prophet's companions and their follower' different perspectives on the 'earned wealth' and the passing year are also cites. Furthermore, fuqaha as well as contemporary religious scholars perspectives on 'earned wealth' and its immediate zakat were reported. Finally, the nisaab of salaries and its calculation were addressed as well as the percentage of salary zakat, which is the quarter of tenth.