Abstract. This study aims to examine the relationship between financial slack and the financial performance of the Jakarta Islamic Index, which includes SRI-KEHATI. The company's financial performance as measured by Return On Asset as the dependent variable, while the independent variable is HDFS (high discretionary financial slack), LDFS (low discretionary financial slack), AFR (availability for financial resources), DFR (demand for financial resources), and TFS (transitory financial slack). The research method used is quantitative research methods. The sampling technique uses purposive sampling where the population sampled in this study is a Jakarta Islamic Index company which includes SRIKEHATI in 2015-2017, which is 12 companies. The results of this study indicate that there are effects of low discetionary financial slack (LDFS) and transitory financial slack (TFS) variables , while high discretionary financial slack (HDFS) variables, availability for financial resources (AFR), and demand for financial resources (DFR) variables do not affect the Return On Assets (ROA).Keywords : Return On Asset, high discretionary financial slack, low discretionary financial slack, availability for financial resources, demand for financial resources, transitory financial slack.  Abstrak. Penelitian ini bertujuan untuk menguji hubungan antara financial slack dengan kinerja keuangan pada perusahaan Jakarta Islamic Index yang Termasuk SRI-KEHATI. Kinerja keuangan perusahaan yang diukur dengan Return On Asset sebagai variabel dependen, sementara variabel independen yaitu HDFS (high discretionary financial slack), LDFS (low discretionary financial slack), AFR (availability for financial resources), DFR (demand for financial resources), dan TFS (transitory financial slack). Metode penelitian yang digunakan adalah metode penelitian kuantitatif. Teknik pengambilan sampel menggunakan purposive sampling yang mana populasi yang dijadikan sampel dalam penelitian ini adalah perusahaan Jakarta Islami Index yang termasuk SRIKEHATI tahun 2015-2017 yaitu sebanyak 12 perusahaan. Hasil penelitian ini menunjukan bahwa terdapat pengaruh dari variabel  low discetionary financial slack (LDFS) dan transitory financial slack (TFS) sedangkan , variabel high discretionary financial slack (HDFS), availability for financial resources (AFR), dan demand for financial resources (DFR) tidak terdapat pengaruh terhadap Return On Asset (ROA).Kata Kunci: Kinerja keuangan, high discretionary financial slack, low discretionary financial slack, availability for financial resources, demand for financial resources,  transitory financial slack.