As Canadian universities seek to attract more international students, there is a need to recognize and respond to the diversity within this group and to question the binary categories of domestic students and international students. Relying primarily on 116 qualitative interviews with international undergraduates at the University of British Columbia, we utilize American students as a case study from which to explore the complex and blurred boundaries between these two categories. Americans resemble domestic students in some respects and international students in others, yet they are often less prepared to meet adaptational challenges because they have low expectations of cultural and institutional differences. We compare the experiences of Americans and international students from other countries, as well as other groups of students who fall between the cracks of the domestic and international student classifications. We argue that, by targeting services on the basis of these broad administrative categories, categories that were created for financial purposes, the university reduces the take-up of the very services students need. (Contains 20 notes, 1 figure and 2 tables.)