The need to shift from a linear to a circular economy is clear, yet many sectors, including water, have lacked the metrics and frameworks needed to track their progress. This presentation will showcase the outcomes of a 2025 UKWIR project developing a Circular Economy Assessment Tool for water utilities. The CEAT fills a critical gap in assessing circularity, offering a structured approach for utilities to quantify how circular their operations are and identify opportunities for improvement. Built on internationally recognized circular economy standards, the tool includes a set of indicators and metrics tailored to the water sector’s specific processes, challenges and potential actions. It enables companies to benchmark their performance and plan targeted interventions that also support environmental, economic and social priorities by aligning with broader sustainability frameworks, including natural capital, social value and whole-systems thinking. This project builds on a series of UKWIR initiatives, that in recent years aimed to embed circular economy principles across the sector, and it is hoped CEAT is the catalyst for national, standardized CE performance assessment. The CEAT now provides the practical foundation to move from ambition to accountability, enabling water companies to track and accelerate their progress in becoming more regenerative and resilient.