Purpose -The purpose of this paper is to study earnings management practices of Islamic banks and conventional banks in the Middle East region. First, the authors examine factors that may influence Islamic banks managers' use of discretion in reporting loan loss provisions (LLP). Second, the authors investigate differences that may exist between Islamic banks and non-Islamic banks in terms of discretionary loan loss provisions (DLLP) used to manipulate accounting earnings. Design/methodology/approach -This empirical study uses an unbalanced panel data of 21 Islamic banks, 18 conventional banks with Islamic windows and 33 conventional banks, from seven Middle East countries during a period that ranges from 2000 to 2008. The authors use a two-stage approach in order to examine factors that may influence the use of discretion by Islamic banks' managers. Findings -The empirical results reveal that Islamic banks use DLLP for both earnings and capital management. External financing is also found to be a determinant of DLLP. Additional findings show no significant differences among Islamic banks, conventional banks with Islamic windows and conventional banks in using DLLP. These three groups of banks behave similarly in terms of discretion based on DLLP. Practical implications -The findings are potentially useful for regulators, auditors and investors. This study provides regulators with insights to strengthen their financial regulations in order to improve accounting quality. In addition, it helps auditors when considering the provisioning policies adopted by banks in order to detect specific manipulations of accounting earnings. The results may also help investors to focus on the impact of managerial discretion on accounting earnings for evaluation purposes. Originality/value -This study contributes to the literature on Islamic banking. On the one hand, it extends prior research by examining the discretionary component of LLP, instead of being restricted to total LLP. On the other hand, it compares the use of discretion among three groups of banks: full Islamic banks, conventional banks with Islamic windows and full conventional banks. SEF 31,1 106 1. Introduction A wide literature has addressed the issue of earnings management in the banking industry. It is shown that banks around the world are found to manage their earnings and banks' managers are motivated to minimize the earnings volatility over time. Current literature provides evidence that loan loss provisions (LLP) are used by banks as an instrument for long-term earnings management (Collins et al., 1995;Ismail and Be Lay, 2002;Anandarajan et al., 2005Anandarajan et al., , 2007Taktak et al., 2010a). Most existing studies have concentrated on conventional banks. However, little attention has been given to earnings management in Islamic banks in the Middle East region.Recent studies such as Zoubi and Al-Khazali (2007) and Taktak et al. (2010b) addressed the issue of the use of LLP in Islamic banks. Zoubi and Al-Khazali (2007) argue that Islamic banks use LLP to ...