The first wave of this COVID-19 survey was fielded as part of the 2020 MOSAiCH survey. MOSAiCH is a yearly cross-sectional survey that focuses on the Swiss population’s values and attitudes towards a wide range of social issues. At the core of the survey is the latest module of the International Social Survey Programme (ISSP), which focuses on environmental issues. The MOSAiCH COVID-19 survey focuses on well-being, work, family and political attitudes during the pandemic. The second and third wave are fielded as follow-ups to wave 1, repeating most of the questions, and giving so a longitudinal view on the Swiss population during this outstanding period.