Work-life balance has become a topic of great relevance in today's business world. In this work we present both a theoretical review on the state of art in this issue and an analysis testing the validity of the positive impact of worklife balance policies in firm performance. For the empirical analyses of these policies on performance we evaluated a sample composed of firms listed in IBEX-35. Findings provide support for the idea that introducing work-life balance practices benefits the company with respect to talent retention and higher employee engagement, as well as achieving a positive impact on productivity, costs and business results.