The Families of Poles in the Netherlands (FPN) survey is a database which enables the examination of different aspects of Polish migrant family life, including family formation, generational interdependencies, espoused family obligations and life outcomes. The FPN has a panel character – the second wave of the survey was conducted in 2018, three years after Wave 1. The questionnaire in Wave 2 focuses on the changes that have taken place in the lives of the respondents and their families since the first wave.