Carer Peer Support Workers (CPSWs) are people who have lived experience as carers/family members of persons with a mental illness, and are employed to provide support to other carers/family members. This qualitative study aimed to explore carers' experiences within a community-based CPSW pilot program in an Australian mental health service. Semi-structured phone interviews were conducted with 20 carer participants in 2015, 5-10 months following their last contact with the service.