“…The auditor-related perspective includes audit firm size, and audit firm tenure (Bedard & Johnstone, 2010;Ezzamel, Gwilliam, & Holland, 2002;Urhoghide & Emeni 2014). However, a different stream of studies continues to discuss other drivers of audit fees, such as earnings managements (Gul, Chen, & Tsui, 2003;Martinez, & Jesus-Moraes, 2017), tax aggressiveness (Donohoe & Knechel, 2014;Hanlon, Krishnan & Mills, 2012;Saremi, Mohammadi & Nezhad, 2016), and corporate governance mechanisms (Boo & Sharma, 2008;Boussaidi & Hamed, 2015;Urhoghide & Emeni, 2014). The main focus of this study is to determine how tax aggressiveness and corporate governance explain changes in audit fees.…”