Pré-publication, Document de travail: We study the impact of work from home on subjective wellbeing during the Covid period, where self-selection of individuals into telework is ruled out, at least part of the time, by stay-at-home orders. We use a difference-in-difference approach with two-way fixed-effects and identify the specific impact of switching to telecommuting, separately from any other confounding factor. In particular, our identification strategy avoids the influence of inter-personal heterogeneity by exploiting the multiple entries into telework, by the same individuals, at different times. On average over the period, switching to work from home -especially full-time, worsens mental health. We also distinguish a positive but imprecisely measured impact of part-time telework on life satisfaction. However, this hides a dynamic evolution, whereby the initial deterioration gives place to an adaptation process after a couple of months. We also uncover a particularly pronounced fall in subjective wellbeing of women with children’s subjective, especially in the first months; this could be associated with home-schooling.