“…Internal auditor expertise and human resource availability are also essential to realize proper financial management supervision in local government. Following the context of Indonesia, we draw four variables, namely: capability (Alzeban & Gwilliam, 2014;Institute of Internal Auditors, 2009;van Rensburg & Coetzee, 2016;Sari, Hastuti, & Tannar, 2019;Yusof, Haron, & Ismail, 2018), maturity (Chen, Chung, Peters, & Wynn, 2017;Mansour, 2010;Sarens, Allegrini, D'Onza, & Melville, 2011), expertise (Abbott et al, 2016;Alzeban & Gwilliam, 2014;Gras-Gil et al, 2012), and size (Abbott et al, 2016;Alzeban & Gwilliam, 2014;Oussii & Taktak, 2018;Sarens, et al, 2011). Our hypotheses are formulated as follows.…”