Like their parents, children are productive members of their households and may contribute to housework. This study is the first to examine trends in children’s housework behavior in Germany. Using data from the German Time Use Study, 12–17-year-old boys’ and girls’ participation in and time use for housework activities are tracked between 1991 and 2013. The analytical focus is on the relation between the time spent on housework by parents and children and its development over time. It is shown that there is no change in children’s overall participation in housework, but that girls and boys spent fewer days on housework in 2012/2013 than 20 years ago. Furthermore, children’s average time spent on housework decreased in the observed timeframe, but remained constant on days on which children actually do housework. Moreover, children’s time use is positively related to parents’ time use, especially for same-sex parent-child-dyads. In conclusion, trends in children’s time use resemble developments in parental housework behavior, especially concerning the decline of total housework time and gender convergence.