Although sharing many factors predicting increased levels of drop-out, the rate of drop-out among young adults aged between 16-25 attending an early intervention service for personality disorder was equivalent to that experienced by services for adults with a long history of personality disorder diagnosis. Concerns exist, however, concerning increased rates of drop-out among patients reporting a greater number of difficulties, reporting a common mental health or substance abuse problem, and during months 3-5 of service use. Implications of the results for future service developments are discussed.