Ethiopian Civil Service University, Department of Tax and Customs Administration, hosted the seventh Ethiopian Tax Research Network (ETRN) seminar on October 25, 2019 at Abay Hall. On the seminar two papers entitled; Transfer Pricing and Its Challenges to Ethiopian Tax Administration and Revenue Mobilization and Ethiopian Taxing System Principles, Practices and Challenges with Special Reference to Residential Taxing Philosophy were presented by Professor Fisha Tsion Mengstu and Dr.Teklu Kassu respectively.