Njenga, Annrita Wanjiru2019-09-122022-06-072019-09-122022-06-072018https://ikesra.kra.go.ke/handle/123456789/132The general objective of the study was to establish the effect of iTax system on revenue collection in Kenya Revenue Authority among Large Taxpayers in order to achieve the purpose of the study and to address the statement of the problem the study is guided by the following three specific objectives. To establish the effect of the adoption of electronic registration on revenue collection by the Kenya Revenue Authority on Large Tax Payers. To establish the impact of the adoption of iTax on efficiency of operation at Kenya Revenue Authority on Large Tax Payer. To find out the challenges of iTax adoption at the Kenya revenue authority when dealing with large tax payers. The success of the KRA adoption largely depends on the functionality of the service. The study established that KRA‗s revenue collection had an impact on iTax adoption. The research adopted a descriptive research design which was the most suitable method as it enabled the researcher to analyze the effect of technology adoption on tax compliance. The population of interest of the study consisted of 1,240 large taxpayers. The sampling frame consisted of the segmented taxpayers from the large taxpayer’s office department. The researcher adopted both stratified and random sampling techniques. The sample size consisted of 124 respondents to whom questionnaires were administered. The quantitative data collected was analyzed by the use of inferential statistics using SPSS and presented through regression and correlation analysis to determine the relation between the dependent and independent variables. The information was displayed by the use of tables where necessary. Descriptive statistic such as mean, standard deviation and frequencies was used to measure the central tendencies of the variables. The study concludes that iTax adoption of large taxpayers is influenced by revenue collection and efficiency. The study recommends continued seminars and training of tax payers on filling of returns.eniTaxArticle