This whitepaper outlines the key changes in the UK insurance market following the Brexit transition and the introduction of a new Solvency UK regime. It details the reforms proposed by the Prudential Regulation Authority (PRA) aimed at enhancing flexibility and streamlining processes within the insurance sector. The paper focuses on the Matching Adjustment (MA) and the Matching Adjustment Investment Accelerator (MAIA) frameworks, which are designed to facilitate more efficient capital management for insurance firms. The reforms include an expansion of eligible investments, changes to the MA calculation methodology, and a simplified application process. Additionally, the whitepaper discusses the improved flexibility for internal models and the reduction of compliance burdens for smaller insurers and new market entrants. The overall aim of these changes is to align solvency capital requirements more closely with specific risk profiles while improving operational efficiency, despite the initial implementation costs that firms may incur.