This paper explores the implications of inherited multiple citizenships for young Canadian adults as they experienced key life course transitions. These young adults acquired Canadian citizenship through birth but they also inherited EU and/or American citizenships through their parents. While there is a growing literature exploring state policies towards dual citizenship, this article focuses on the meanings, relationships and opportunities that two sets of siblings associated with their multiple citizenships. Navigating this kind of volatile terrain is, I argue, as likely to involve happenstance and improvisation as a careful interpretation of, or identification with the formal properties of citizenship.