Overview
- The companies announced the initiative on Thursday, May 21, 2026, with a joint commitment of more than $1 billion over five years to move AI from pilots into production across clients.
- EY will act as 'Client Zero' by expanding Microsoft Copilot across its workforce after an initial rollout to 150,000 users produced a reported 15% productivity gain and faster finance and tax workflows.
- The program pairs Microsoft’s forward deployed engineers with EY practitioners to build industry-focused solutions for Finance, Tax, Risk, HR and Supply Chain using Azure, Copilot and EY.ai.
- Independent reporting says EY supplies most of the funding to build an assurance-oriented AI stack on Microsoft infrastructure, and EY projects agentic AI to support all audit activities by 2028 while noting execution and compliance risks.
- The deal follows years of EY tech investment — including a broader $2.5 billion modernization effort and roughly $1.4 billion poured into the EY.ai platform — and could reshape audit labor, regulatory oversight, and how firms price services.