The purpose of this study was to obtain the empirical truth of performance expectancy, effort expectancy, social factors, facility condition, self efficiency, and quality system on behavioral intention to use E-Samsat system, a case study in the office of samsat Yogyakarta.City. Data was distributed and collected by convenience sampling technique to the respondents. The sample used in this study were taxpayers using E-samsat as a tax payment tool or who have known the manual of the E-samsat system but have never tried it directly with a total of 100 respondents. The analytical method used was simple regression analysis. From the simple regression the result indicates that performance expectancy, effort expectancy, social factor, and facility condition does not have significant effect on behavioral intention, while self efficiency and quality system have significant effect on behavioral intention