The adoption of Capital Requirements Regulation (CRR) III in 2024 introduced a new regulatory architecture for credit valuation adjustment (CVA), requiring financial institutions to align capital buffers with evolving counterparty credit risk. This paper provides a comparative analysis of the standardised (SA-CVA), basic (BA-CVA) and simplified (SI-CVA) approaches, incorporating detailed numerical examples and explicit mapping to CRR III provisions. By tracing BA-CVA’s theoretical lineage to the Capital Asset Pricing Model (CAPM) and Modern Portfolio Theory (MPT), the study connects supervisory regulation with foundational financial theory. The findings highlight that while SA-CVA offers risk sensitivity and potential capital relief, BA-CVA and SI-CVA serve as accessible but conservative alternatives for less complex institutions. A dual-layered CVA strategy combining Pillar 1 minimums with internal Pillar 2 overlays is recommended to manage residual risks and wrong-way exposures effectively. This article is also included in The Business & Management Collection which can be accessed at https://hstalks.com/business/.