The current study examined changes in adolescents' school bonding from before to during the COVID-19 pandemic and its individual, parenting, and family-level correlates. Participants were two adolescents (50% male; Mage = 14 years) and one parent (85% female; Mage = 45 years) from 682 families (N = 2046) from an ongoing longitudinal study. Adolescents reported on their school bonding, stress, and coping, while parents reported on their involvement in adolescents' education and pandemic-related financial need. A two-wave latent change score model suggested that adolescents' school bonding decreased from before to during the COVID-19 pandemic. Stress and pandemic-related financial need served as risk factors, whereas coping and parental involvement served as protective factors against declines in adolescents' school bonding.