The objective of this study is to investigate how global IT applications are being used and to develop a means of assessing their impact. Building on the prior work of Palvia (1997), Sethi and King (1994), and Mahmood and Soon (1991), a multi-factor global IT impact model is developed. This model exhibits a high degree of reliability and validity. From a theoretical perspective, this study develops a measurement model that can be used to evaluate the use and impact of IT in a global environment. From a practitioner’s point of view, the study provides a better understanding of the factors that influence the use and impact of global IT applications.