Is AI Improving the Law-Firm Bottom Line?

Most law-firm attorneys see a path from artificial intelligence to greater capacity, but relatively few firms can yet point to a clear profitability gain. Primary Research Group's survey found that 55% of attorneys believed AI would let their firms handle more matters without adding headcount. Only 26%, however, said that this had already happened. About two-thirds reported no effect on profitability, while 14% said AI had enhanced it.

Firm size matters. Among firms with more than 1,000 lawyers, 31% reported improved profitability—more than twice the overall share. Client pressure also varied: half of respondents from firms with 600 to 1,000 lawyers reported pressure to use AI, compared with one-quarter of those at firms with fewer than 23 lawyers.

The individual productivity story is more advanced than the firm economics. Roughly two-thirds of attorneys said AI had increased their personal productivity, with a 5% to 10% gain the most common estimate. Legal research and drafting were each identified by about 29% as the area of most measurable improvement.

Yet faster work does not automatically become higher profit. Fifty-eight percent said billable hours were unchanged, and half said AI had not changed client fees. Firms still have to decide how time savings affect staffing, realization, pricing and the number of matters each lawyer can supervise.

For managing partners, the right scorecard should connect tool use to matter economics: hours saved, write-offs avoided, capacity added, fee arrangements protected and quality maintained. AI may already be improving the work. The harder—and more valuable—task is redesigning the business model so that the improvement reaches the bottom line.