Successful identity integration processes are fundamental for the well-being of working parents during stressful circumstances. In two studies we analyzed the associations between Parent–Work Identity Integration (PWII), workload, care-load, and parents’ work problems in a sample of individual working parents in Italy ( N = 326 individuals; Study 1), and those between work–life conflict, task-sharing between partners, PWII, and parents’ intention to leave their job and mental health in a sample of mixed-sex working couples with school-aged children ( N = 97 couples, Study 2). Finally, we examined gender differences in all the above associations. Study 1 results showed that parents dissatisfied with care-load distribution within the couple and those with higher workload also reported more problems at work, and these effects were fully mediated by PWII. Moreover, Study 2 showed that care-load distribution is only associated with women’s PWII and, indirectly, their well-being and their intention to leave their job. Moreover, parents’ lower work-life conflict was associated with higher PWII and, in turn, to better mental health and lower intention to leave their job. The effects of work-life conflict were also found to cross-over onto the partner’s well-being. Promoting working parents’ ability to harmoniously blend their work and parental identities, in addition to balance conflicting demands between work and life, appears crucial for intervention.