Although palliative care aims to support family members and informal carers, current evidence suggests that high levels of unmet need persist, and that this population is challenging to work with. This study aimed to 1) measure the proportion of patients that have an informal carer, 2) describe the clinical notes data on existing needs and coping, 3) measure the completeness of assessment data recording, 4) appraise the utility of existing informal carers’ sections in the patient files, and 5) make recommendations for improvement. An audit was conducted reviewing 145 closed patient files. Of these, 100 had identifiable informal carers (69.9%). Although patient data was complete, data was severely lacking on their informal carer. Diverse coping strategies were described, and the primary need was for finance and advice about state welfare payments (n = 64). The findings suggest a need for files to identify and record informal carers as potentially distinct from family members, promote assessment data completion for informal carers on a par with that of patients, and to develop systematic approaches to systems that maximize utility and incorporate multiprofessional input into the development of clinical notes.