PurposeExtant expatriate literature largely adopts a global north/western focus and expatriate-centric approach in investigating spousal/partners’ motives for supporting expatriation. Contrastingly, this study focuses on the lived experiences of dual-career female partners from an emerging global south economy and a patriarchal society as it relates to motives for supporting a partner’s international assignment (IA) to a developed country.Design/methodology/approachThis investigation adopts a hermeneutic interpretive phenomenology research design. Twelve career-oriented female partners from an emerging global south economy (Brazil) who supported a partner’s IA to a developed country (USA) participated in this study. The data included semi-structured interviews and field notes.FindingsThe study indicates that societal constraints, gendered career experiences and career and life stage reasons influenced women’s decision to engage in career opt out and/or interruption in support of their partners' IA. Further, patriarchal long-lasting structures and ideologies shaped women’s career experiences; women perceived IAs as a means of acquiring embodied and institutionalized cosmopolitan capital for themselves and their families in order to gain a better position in a transnational/globalized world.Research limitations/implicationsAlthough the sample size of this study is appropriate for the methodological choice adopted, future studies should include more participants and address different socioeconomic, political and cultural contexts.Originality/valueThis study highlights dual-career female partners' lived experiences in an emerging global south economy and a patriarchal society as it relates to motives for supporting IAs.