A high proportion of psychiatric inpatients experience Restrictive Practice (RP) during admission. Numerous reports have highlighted adverse effects on patients and staff. However, qualitative research focussed on experience, impact, and coping mechanisms of healthcare staff in the UK is limited. Therefore, this study explored psychiatric healthcare staff experience of RP on inpatient wards in the UK. Eight semi‐structured, audio‐recorded interviews, of ~60 min, were conducted via telephone/Skype and transcribed verbatim. A critical realist epistemology was used to thematically analyse data. Three themes were identified: the coexistence of accountability, power and subjection; impacts on the individual and professional relationships, and coping with difficult experiences and emotions. Restrictive practice can negatively affect staff experience, working relationships, and wellbeing. Opportunities for support could mediate adverse effects. Future research could further explore coping mechanisms and organizational factors contributing to negative staff experiences.