Abstract Many theorists of management emphasize on In-role and Extra-role performance in order to enhance effectiveness. Different studies have been done to improve the In-role and Extra-role performance of employees which include perception of social responsibility and job attitudes. The aim of this study is to evaluate perception of social responsibility effects with In-role and Extra-role performance considering job attitudes as a mediator variable. The population of the survey includes 1,640 managers and staff of Tejarat Bank. Data gathered through questionnaires and a sample of 314 randomly collected, and were analyzed using structural equation modeling. The validity of research questions confirmed using confirmatory factor analysis and reliability was approved by Cronbach's Alpha. According to The results of structural equation modeling, all hypotheses except one was proven. Also it showed that the job attitudes as a mediator in the relationship between the perception of social responsibility and employee performance has meaningful and significant effect.