Introduction: The Carer Support Unit (CSU) of the Central Coast Local Health District (CCLHD), NSW, Australia, developed, trialled and implemented a Carer Readiness Tool (CRT) to help carers gauge their readiness to care at home, highlight to hospital staff areas for additional support for carers, and provide evidence of carer engagement in discharge planning. Methods: A rigorous co-design process was followed with carer consultation at key milestones in development of the CRT. The tool was piloted in two cancer/chronic renal disease inpatient units commencing November 2019. Results: The CRT was well-received by carers who appreciated the opportunity to complete the tool in their own time, not in front of the patient. Positive feedback was received from clinicians, including the breadth of the CRT’s content which contributed to better discharge planning. The need to manually incorporate a hard copy form into the electronic medical record is a limitation of the CRT. Conclusion: The CRT is context-specific and fit for purpose. During the development of the CRT, the project team focused on the face validity and usefulness of the tool. The next stage of the project will be formal evaluation of the tool to measure its impact.