Black faculty and staff are often expected to engage in university service their White peers are not (Reddick et al., 2021). More specifically, Hirschfield and Joseph (2012) found that faculty of color are expected to bear the responsibility of diversity-related work in ways their White counterparts are not. The term 'cultural taxation' was introduced by Amado Padillia (1994) to discuss the inequitable workload of non-White faculty. This disparity of workload stems from the additional responsibilities imposed because of their ethnicity and/or racial background. The study examines the experiences of professional Black women at predominantly White institutions (PWIs) of higher education through the lens of cultural taxation. Using qualitative focus groups, this narrative inquiry study expands upon Padilla's work by focusing on Black women and exploring cultural taxation beyond the faculty role. The researcher's analysis explores illustrations, determinants, and outcomes of cultural taxation and the perceptions that Black women at PWIs have about cultural taxation through their experiences. Findings from this study supports the assertion that cultural taxation encumbers the experience for Black women PWIs. Additionally, findings led to the introduction of a new term by the researcher, Ubuntu Onus. Ubuntu Onus is a sense of responsibility stemming from an unspoken but shared code of conduct for non-White people. This code is anchored in connections, community, and caring (Van Breda, 2019). Implications of the findings of this study are that cultural taxation is an occupational hazard to Black women. Organizational leaders and powered people must directly and systemically address racial equity gaps in a sustainable way to combat cultural taxation. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]