Patient-initiated brief admission (PIBA) allows patients to decide when admission to psychiatric care is necessary. This may prevent long-term hospitalisation and promote patient participation. Research on psychiatric nurses' experiences with PIBA is lacking, therefore 11 nurses were interviewed and data analysed using content analysis. Prominent categories were: improved personal development for the patient, more equal nurse-patient relationship, rapid access to a safe environment and strengthened professional collaboration. PIBA is a helpful intervention for patients in crisis, giving both patients and nurses a sense of security. Future studies should explore how this impacts nurses' work environment and job satisfaction.