This Working Paper analyzes paid and unpaid work-time inequalities among Bolivian urban adults using time use data from a 2001 household survey. We identified a gender-based division of labor characterized not so much by who does which type of work but by how much work of each type they do. There is a partial trade-off between paid and unpaid work, but such a substitution is only partial: women’s entry into the labor market tends to result in a double work shift of paid and unpaid work. We also find very high levels of within-group inequality in the distributions of paid and unpaid work-time for men and women, a sign that beyond the sexual division of labor, subgroup differentiation is also important. Using decompositions of the inequality in the distribution of total time spent at work, we show that gender is an important variable to explain how much paid and unpaid work is done by individuals, but not so important to explain why some people have a higher total workload than others.