The social responsibility has a great role according on the welfare of society as a whole, due to the great importance of the financial performance of all institutions، and the significance of the media organizations' role in the community.  The research aims to find out effects of the disclosure of costs of social responsibility on the financial performance of the Palestinian media institutions. The researcher used descriptive methodology analytical through a field study in which 54 questionnaire; on every unit of the population of the study, which is called the inclusive inventory, were distributed to 54 media organizations in Gaza Strip. The responses were obtained on (50) questionnaire which are valid for analysis, a sufficient number to conduct the analysis and  comparison.

The researcher finds out the presence of the impact of disclosure of costs of social responsibility with its three sections-towards society, towards public, and towards the environment-on the financial performance of media organizations, except for the disclosure of costs of social responsibility towards the employees that was very weak, so it was neglected. Moreover, the hypothesis was confirmed which states that "there are no statistical significant differences between the averages of responses of the respondents about the disclosure of costs of social responsibility differences attributed to the general data."

The researcher recommends to pay attention to disclosure of the costs of social responsibility towards the employees, and to reinforce the  disclosure of the costs of social responsibility towards the environment.