Previous studies on joint household trips were often limited by data availability and focused just on specific types of joint trips. This study employs an iterative matching process with flexible criteria, successfully identifying travel party composition for over 90 % of trips with stated household company in the two large German household travel surveys SrV and MiD. Household-level weights are calculated to enable robust comparison between the two datasets. More than one third of joint trips on weekdays in Germany are parent-child trips. Joint household trips of multiple adults are predominantly performed on weekends. The prevailing purpose of joint household trips is leisure, with education purposes being equally or even more relevant for parent-child travel. The extensive matched dataset offers valuable opportunities for further research and can be a foundation for data-driven behavioural models that capture interdependencies within households.