This paper profiles the psychological well-being of students in their initial year of university. There were three aims: to measure the impact of arrival at university on the psychological well-being of first year students, to monitor (i.e. profile) the shape of psychological well-being across the first year, and to investigate how students manage their well-being in relation to the use of university counselling services. Data were collected on four occasions, with 84% of all first year students at a UK university (4,699 students) completing the questionnaire on at least one occasion. Psychological well-being was assessed using the GP-CORE, a general population form of the CORE-OM. Results show that greater strain is placed on well-being once students start university compared to levels preceding entry. This strain rises and falls across the year but does not return to pre-university levels. Items tapping depression and anxiety suggest that the first year of university is a time of heightened anxiety but not a particularly depressive time. The findings are discussed in relation to students' experience of higher education and how to match student needs with university counselling service provision. (Contains 3 tables, 2 figures and 1 note.)