Oladele, Aribaba, Adeniran & Babatunde. E-Tax Administration and Tax Compliance… 93 ISSN: 2635-2966 (Print), ISSN: 2635-2958 (Online). ©International Accounting and Taxation Research Group, Faculty of Management Sciences, University of Benin, Benin City, Nigeria. Available online at http://www.atreview.org Original Research Article E-Tax Administration and Tax Compliance among Corporate Taxpayers in Nigeria Oladele Rotimi 1 , Aribaba Foluso Olugbenga 2 , Adediran Rasheed Adekunle 3 & Babatunde Adebola D 4 1, 2, 4 Department of Accounting, Federal University Oye-Ekiti, Nigeria. 3 Department of Accounting, Adekunle Ajasin University, Akungba Akoko, Nigeria. For Correspondence, email: rotimi.oladele@fuoye.edu.ng Received: 29/04/2020 Accepted: 26/04/2020 Abstract The impact of electronic tax administration on tax compliance and the resultant effect on tax revenue has been examined. The quantitative research design was employed using existing data sourced from the Federal Inland Revenue Service (FIRS). Data were tax revenue posted seven years before and after the adoption of e-tax administration by the FIRS in 2013. Data so sourced were analyzed using descriptive statistics and pairwise t-test to ascertain if a difference exists and or relationship between pre-and post-e-tax revenue. The study found a strong connection between the electronic tax system and tax compliance (tax revenue) as shown by the pairwise test (p-value of 0.012<0.05). Also, the mean tax revenue during post- and pre-e-tax of (4466828.5714>3051200.0000); and an average annual variation in overall tax revenue of N1.4trillion compared with pre-electronic tax period demonstrated a significant difference. With these, the study affirmed that a strong association exists between electronic taxation and tax compliance. Therefore, the service should always further work on its Information Communication Technology (ICT) architecture/infrastructure for easy access and flexibility to encourage taxpayers as well as enhancing robust tax administration. In all, security measures should be put in place regularly to prevent hackers, malicious attacks and other disasters inherent in ICT based environment. Keywords: E-taxation, tax compliance, taxpayers, tax revenue, ICT-facilities, malicious attack