This study focused on work life balance and its effect on employee performance in the Nigerian banking industry. The study started by looking at various events or issues that affects the performance of employee most especially in Guaranteed Trust bank Nigeria. The study therefore proposed a statement of problem to look at and identify those anomalies that may come up as a result of poor balance between work and life. The objectives, research questions and hypothesis were raised in line with the problems identified in the industry. The scope of the study was limited to Guaranteed Trust Bank Awka while the significance was given in line with the benefits to be expected by the stakeholders involved in the study. The literature review was done on conceptual theoretical and empirical frameworks as well as a summary and gap in the literature. The methodology adopted as survey design with multiple regression analysis was adopted for the analysis. The data was analysed based on descriptive and inferential statistics. The findings of the study indicated that there is a significant relationship between the impendent sub variable and the dependent variables. The study therefore rejected all the null hypothesis because the estimates were statistically significant.