The main objective of this study is to examine the impact of e-banking service on the performancernof top performer commercial banks in Ethiopia. The specific objectives were to examine thernimpact that ATM, POS, Mobile banking and bank size have on the performance of top performerrncommercial banks. The study used explanatory method of study based on quantitative approach.rnThe population of interest in this study comprised eleven commercial banks operating in Ethiopiarnout of those nine commercial banks are selected using a purposive sampling method for thernperiod 2013 – 2017. The study used secondary data. In analyzing the data, the study used bothrndescriptive and inferential statistics. Result using fixed effect panel least square regression withrnthe aid of E-views9 econometric software exhibited that, increasing the number of ATMs variablernhas a negative and significant impact on bank ROA , increasing the number of POS has negativernand insignificant impact on bank ROA, increasing number of mobile banking users variable hasrnpositive and significant impact on bank ROA, and increasing bank size has a negative andrnsignificant impact on bank ROA. The overall results revealed that e-banking services havernnegative significant impact on the performance of commercial banks in Ethiopia.