NAMULESA, Lillian JoyProf. Basheka, Benon C.(Supervisor)Sabiiti, Moses (Work-Based Supervisor)2017-06-072017-06-072012-01APA08/MMSPPM/17/066http://hdl.handle.net/20.500.12305/166A Dissertation Submitted to the School of Management Science in Partial Fulfillment of the Award of Masters in Management Studies (Project Planning & Management) of Uganda Management Institute.The study examined the contribution of Customs Information System (CIS) as the independent variable to the performance of URA’s Customs Department as dependent variable. Performance measures were efficiency, control, and administrative burden and the moderating variable was capacity of users. To explain how CIS could help users perform and control tasks employed the Systems Theory, Resource-Based Theory and Task Technology Fit Theory. It also used a case study design using both quantitative and qualitative approaches. A population sample of 114 was selected using stratified and purposive sampling techniques. Quantitative data was analyzed using frequencies, percentages, mean, standard deviation and correlations established relationships while regression assessed the contribution of the CIS to performance in the Customs Department. Qualitative data analysis involved data reduction, data display, analysis and interpretation. Findings revealed a strong significant relationship between the CIS and efficiency (r = .658, p = .000); CIS and control (r = .711, p = .000); except administrative burden which was (r = -.104; p = .334) in performance of the Customs Department. The CIS accounted for 43.2% of variance in efficiency in performance and 50.5% of variance in control but did not significantly affect the administrative burden. Some of the lessons learnt from the study are; the importance of IS/IT in supporting organizational performance by improving efficiency, giving due consideration to antecedent factors. With regard to control, nature of jobs and values, referred to as standards are explained. Furthermore, IS explains how administrative burden arising from tax regulations can be reduced, while the importance of fit between technology and capacity of users enable the achievement of intended goals. It was concluded that CIS significantly affected performance of the Customs Department. Therefore, URA should continue using CIS by improving data input, processing, output and user capacity to further improve efficiency, control and reduce the administrative burden in performance of the Customs Department.enCustoms Information SystemPerformanceCustoms DepartmentUganda Revenue AuthorityThesis