Objective COVID-19 has had unprecedented effects on American families, including increases in depression, anxiety, and irritability for both parents and children. While parents and children influence each other’s psychological functioning during non-disaster times, this effect may be amplified during times of disaster. The current study investigated how COVID-19 influenced covariance of depressive symptoms and irritability in children and their parents. Methods Three hundred and ninety-one parents and their 8- to 17-year-old children ( M age = 10.68 years old, 70% male, 86% White) from a large sample of children and parents, primarily from Southeastern Louisiana, completed self-report measures of depression and irritability approximately 6 weeks into the COVID-19 pandemic, as well as providing retrospective reports of their symptoms prior to the pandemic. Actor–partner interdependence models were used to measure the reciprocal effects of parent symptoms on children and vice versa, both before and during the pandemic. Results Actor effects in both the depressive symptoms and irritability models suggested that pre-COVID-19 depressive symptoms and irritability were robust predictors of early-COVID-19 depressive symptoms and irritability for both parents and children. Partner effects were also detected in the irritability model, in that parental irritability prior to COVID-19 was associated with decreased child irritability during the pandemic. Both before and during the pandemic, associations between parent and child depressive symptoms and irritability scores were weaker in families evidencing greater dysfunction. Conclusions Results suggest that COVID-19-related stress is associated with increases in both parent and child symptomatology, and that family relationships likely influence associations between these symptoms.

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