Telework has spread during the pandemic of coronavirus disease (COVID-19). Using a unique individual-level survey in Japan, we investigate how telework has changed the way people live and work and what impediments hamper telework use. As a result, we find that telework allows workers to spend more time on leisure and their families. Compared to routine task workers, non-routine (abstract) task workers are more suited to telework. However, once engaged in telework, non-routine task workers have fewer opportunities to communicate with coworkers, which is a serious impediment that tends to hamper work performance and compromise mental health.