PurposeBased on authentic leadership (AL) theory and research on lesbian, gay, bisexual and transgender (LGBT) workplace experiences, this study proposes that AL explains variance beyond transformational leadership (TL) in attitudinal outcomes for LGBT managers compared to non-LGBT managers. It is further predicted that core self-evaluations (CSEs) bound relationships between AL, LGBT status and outcomes.Design/methodology/approachA time-lagged survey of 193 LGBT and 218 non-LGBT (i.e. heterosexual and cisgender) managers was conducted. The first survey assessed respondents' evaluations of their leadership behavior and CSEs whereas the second survey, conducted one month later, assessed role engagement and career satisfaction.FindingsRegression and moderation analyses revealed support for the hypotheses. AL seems especially relevant for LGBT leaders, particularly at low levels of CSEs.Practical implicationsLeadership development programmes emphasizing AL could be particularly beneficial for LGBT managers, especially those low in CSEs. Harnessing a leader’s sense of identity could help those who have been marginalized.Originality/value The current study proposes, explains and demonstrates that relationships between AL and leader outcomes will likely be different between managers with and without stigmatized identities, in this case those who are (not) LGBT.