Maryam Atashi - MSc. In Information Technology Engineering, Tarbiat Modares University, Tehran, Iran
Baharak Pourrajab - MSc. In Information Technology Engineering, Tarbiat Modares University, Tehran, Iran

The purpose of this study is to investigate the impact of IT on organizational effectiveness in government departments. This research is descriptive-applied. The statistical population of this research is all employees of Tehran Financial and Tax Administration. For collecting data on theoretical foundations and extracting primary factors and indicators from library and Internet resources, including books, articles and case studies. A questionnaire was used to collect information and data needed to investigate the research hypotheses. In order to confirm the validity of the questionnaire, the experts have used this field. To confirm the reliability of the questionnaire, the Cronbach s alpha test has been used which is 0.894 which indicates its high reliability. Research findings confirm the role of IT in organizational effectiveness, but the results, however, show that despite this relationship, information technology is still viewed as a supporting function in the organization. In order to analyze the data, Spearman correlation test was first used to examine the hypotheses

Information Technology, Information Systems, Organizational Effectiveness, Government Offices, Financial and Tax Administration