Homeschooling due to COVID-19 school closures is likely to increase conflict between work and family demands, potentially leading to adverse substance-use effects. We conducted a survey with 758 couples focusing on homeschooling, work–family conflict, and alcohol use (April 2020). The 211 homeschooling couples reported more work–family conflict than the 547 non-homeschooling couples; there also were stronger effects on family interference with work in women. Among the homeschooling couples, homeschooling hours were associated with greater partner drinking. In distinguishable dyad analyses by gender, women’s hours homeschooling were associated with greater drinking frequency by both parents. Men’s hours homeschooling were associated with lower drinking frequency in their partners. Increased work–family conflict in homeschooling couples is particularly worrisome given its link to increased stress and poor mental health. Moreover, women’s increased drinking may impede their ability to support their families during the pandemic. Men’s increased drinking could put homeschooling mothers at risk for escalating conflict/domestic violence, given links of male drinking to intimate partner violence. Finally, the protective-partner effects of men’s homeschooling hours on women’s drinking frequency suggests that more egalitarian division of homeschooling labor may have protective cross-over effects.

While the COVID-19 pandemic has impacted the way parents partition tasks between one another, it is not clear how these division of labour arrangements affect well-being. Pre-pandemic research offers two hypotheses: economic theory argues optimal outcomes result from partners specialising in different tasks, whereas psychological theory argues for a more equitable division of labour. The question of which approach optimizes well-being is more pressing in recent times, with COVID-19 school closures leaving many couples with the burden of homeschooling. It is unknown whether specialisation or equity confer more benefits for mandated homeschoolers, relative to non-homeschoolers or voluntary homeschoolers. Couples (n = 962) with children in grades 1–5 completed measures of workload division and parental well-being. A linear mixed modelling in the total sample revealed that specialisation, but not equity, promoted increased parental emotional and relationship well-being. These relations were moderated by schooling status: voluntary homeschoolers’ well-being benefitted from specialisation, whereas mandated homeschoolers’ well-being did not benefit from either strategy; non-homeschoolers well-being benefitted from both strategies. Across the mixed-gender couples, mothers’ and fathers’ well-being both benefitted from specialisation; equity was only beneficial for mothers’ well-being. Overall, couples might be advised to adopt highly equitable and specialised arrangements to promote both parents’ well-being.