The objective of this thesis is to explore how leave policy designs contribute to an equal division of childcare between parents in Argentina, Finland and the United Kingdom. In order to do this, a qualitative cross-country analysis is conducted, exploring two different dimensions: (1) the Leave System dimension, which refers to payment, eligibility, funding and duration of the leave; and (2) the Gender Equality dimension, studied through different indicators such as the possibility of alternation between parents, the flexibility in use, whether a fathers quota exists, and how much time each parent spend in childcare. The study shows that Finland is the country which better contributes to creating gender equality in childcare, while Argentina and the UK present more restrictive and maternalist policies. However, despite the extremely different policy designs, these countries share one common characteristic: female dominance in childcare. Women spend much more time compared to men taking care of children. The thesis concludes that although social, cultural and gendered expectations shape the way leaves are developed in each country, policy designs are still decisive steps towards the ideal situation where both mothers and fathers take care of their children equally.