Adoption & maturity
AI Spend & Budget Allocation
How legal AI budgets are growing and where the money goes.
IllustrativeUpdated 2026-07-08
AI Spend & Budget Allocation
Percentage of firm revenue allocated to AI tools by firm size, year-over-year growth, and how firms attribute ROI to AI investments.
AI Budget as % of Revenue by Firm Size
AI Spend Breakdown
ROI Attribution
Attribute revenue growth to AI38%
Attribute cost reduction to AI62%
No measurable impact yet24%
Plan to increase AI spend next year78%
Illustrative estimate - a directional figure for scenario framing, not a measured benchmark. Do not read these as measured per-vendor results.
As a directional estimate, legal AI budgets roughly double across every firm size between 2024 and 2026, and the gap between segments widens rather than closes. Big Law shows the steepest climb, from 6.8% to a projected 13.2%, while solo practitioners start lowest at 2.1% and reach an estimated 5.5%. On spend allocation, model API costs (35%) and tooling and platforms (28%) still dominate over training and change management (20%) and integration or custom development (17%), suggesting most firms remain in a buy-and-adopt phase rather than building internal capability.
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