Psychological contract (PC) breach perceptions are formed when employees detect discrepancies between obligated and delivered inducements. PCB stresses and strains employees to varying degrees and has detrimental consequences for employees and the organisation. Employees activate various coping strategies to respond to the stress elicited by PCB, and effective coping helps enhance employees' well‐being. In this study, we propose and test a moderated mediation model, where approach and avoidance coping strategies mediate the relationship between PCB and stress, and employees' goal‐based personality (i.e., behavioural inhibition system—BIS and behavioural activation system—BAS) moderates the relationship between PCB and coping strategies. We further examine the effectiveness of the subdimensions of coping, as well as how BIS/BAS influences the choice of these subdimensions in a sample of Western employees. Our results suggest approach coping effectively reduces stress elicited by PCB, whereas avoidance coping increases stress. Moreover, employees with higher BAS are more likely to engage in approach coping, whereas those with higher BIS use avoidance coping. We advance the research on coping with PCB by showing a more nuanced understanding of the subdimensions of coping as well as exploring diverse personality models in moderating the choice of coping strategies.