The paper investigates the relationship between the EU's prudential and resolution frameworks for banks. The prudential framework aims to bolster bank and sector resilience through capital requirements and buffers. The resolution framework prioritizes orderly resolution by ensuring loss-absorbing capacity and protecting public funds. Overlaps in capital usage between these frameworks affect the effectiveness of capital buffers. Analysis shows that overlaps in the prudential framework decrease buffer usability to roughly 65-74%. Adding the resolution framework further reduces usability to an average of 40-50%. Simulations suggest the Basel III implementation would improve buffer usability significantly. The paper examines options to minimize overlaps and assesses associated trade-offs. The full phase-in of resolution requirements in 2024 is a critical factor. Bank capital targets and balance sheet adjustments will influence future buffer usability. Macroprudential authorities will face challenges based on these evolving dynamics. The research underscores the importance of efficient capital utilization for financial stability.