Editor's take

Deloitte's internal assessment forecasts a dramatic decline in the traditional billable hour model for consulting by 2035, with AI agents poised to capture the majority of the market. This projection underscores a fundamental shift in professional services, where AI's capacity for automated analysis and task execution directly challenges the human-labor-intensive billing structure that has defined the industry for decades. The implications extend beyond Deloitte, affecting all major consultancies like McKinsey and Accenture, and potentially altering how clients engage with advisory services, moving towards outcome-based or subscription models.

The critical question is how quickly and effectively consultancies can pivot from their established revenue streams to embrace and integrate AI. The success of this transition will depend on developing new service offerings, retraining their workforce, and demonstrating tangible value beyond hours logged. Investors and clients will be watching to see if these firms can truly leverage AI to deliver superior results at potentially lower costs, or if the disruption leads to significant restructuring and a redefinition of the consulting profession's role.