Legal department budgets for AI increased by an average of 67% over the past year, with 79% of in-house teams reporting a budget rise, according to a new Deloitte survey. The share of legal departments not using AI dropped from 76% in 2024 to just 2% today, signaling that the business case for AI adoption has been made and teams are now moving beyond pilots into deployment.
"This signals that the business case for AI in legal has been made," Deloitte wrote in the report, The AI imperative: Reshaping of the legal industry. "A growing body of pilot data, proven industry experience and enterprise-wide AI mandates has strengthened the case for investment. The industry has shifted from 'should we invest?' to 'how and where do we invest?'"
From pilots to production
The survey of more than 100 legal department leaders across the Americas, APAC, EMEA, and the UK and Ireland found that 61% of in-house teams are now in the deployment stage, with another 10% having already fully embedded AI. Only 2% said they had not adopted any AI at all, a dramatic reversal from 76% a year earlier.
Workforce size and composition
Despite the spending surge, 58% of respondents believe their legal teams will remain roughly the same size. The composition, however, is shifting toward more non-legal and technology professionals, and fewer traditional lawyer roles. The portion of respondents who expect teams to shrink doubled from 2024, reaching 20%.
Essential skills for the AI era
Technology and AI literacy ranked as the most important skillset over the next two to three years, cited by 96% of respondents. Learning and adaptability followed at 89%, then strategic business thinking (74%) and judgment and critical thinking (73%). The survey underscores the growing demand for AI for Legal Professionals expertise. For training, 66% of respondents pointed to continuous education and role rotations as key, while 63% favored simulations and scenario-based learning, and 60% backed competency-based progression over time-served models.
Pressure on outside counsel
In-house leaders expect their law firms to use AI, with 78% identifying cost reduction as the primary benefit, followed by improved legal service quality (57%). Some general counsel are targeting 20-40% cost cuts over the next two to three years. A full 85% of respondents said AI will change billing practices to a moderate, large or very large extent, with the share of work billed by the hour expected to fall from 72% today to 44% over the same period. Yet 58% of general counsel reported that their external providers rarely or never proactively discuss AI's benefits.
Why this matters for legal professionals
AI is no longer a pilot project-it is being embedded directly into legal operations. The data shows that in-house lawyers who do not build AI literacy quickly risk being sidelined as teams restructure around technology. With outside counsel under pressure to deliver cost and quality gains through AI, even firm-based practitioners must adapt their skills and pricing models. The message from the survey is concrete: continuous learning, competency-based progression, and fluent AI use are becoming baseline expectations, not optional advantages.
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