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Law Firm Rates Report 2027: The AI impact you may not have been expecting

October 28, 2026
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October 28, 2026
16 min
Law Firm Rates Report 2027: The AI impact you may not have been expecting

A new report finds that AI is currently boosting law firm profitability primarily by generating new legal demand rather than improving internal efficiency. And while record rate increases and strong client demand are sustaining growth, it’s critical for law firms to measure AI’s impact, rethink pricing and staffing, and prepare for future efficiency-driven disruption.

Executive Summary

In last year’s Law Firm Rates Report, we wrote that when it comes to the rates they charge clients, law firms have arguably never had it better. This year, they did better.

The largest firms in the United States pushed through their largest rate increases on record, a fourth consecutive year above a line no other segment has crossed even once. Demand accelerated against an already high baseline. Realization, where client resistance would likely surface first and earliest, barely gave ground.

What’s more, firms are spending at historically elevated levels on talent, infrastructure, and above all else, on technology. In fact, per lawyer spending growth on technology is running at roughly double the pace of everything else. Impressively, profit per lawyer still climbed after all of it. In short, the dollars are coming in faster than they’re going out.

Of course, that’s not to say everything is behaving as normal. For almost the first time in nearly two decades, the different law firm segments we track stopped moving in lockstep on price: the largest firms pressed harder, while midsize firms (which had been winning work precisely because they cost less) eased off.

It may be that AI is impacting law firm economics on the expense line but has not yet made its way to pricing. If this is so, what does that mean for the legal market, both now and the future?

What’s more, the flattening of the lawyer population pyramid that has been forecast since 2023 simply has not arrived. Leverage isn't thinning, it’s getting deeper, and firms are adding rungs to it. Whatever firms say they believe about AI absorbing junior work, they are buying more junior labor than before regardless, and they are not yet pricing their legal work as though it has gotten any cheaper to produce.

Given all that, it may appear that AI is impacting law firm economics on the expense line but has not yet made its way to pricing. If this is so, what does that mean for the legal market, both now and the future?

The latest iteration of the Law Firm Rates Report goes looking for this answer. We ran several tests to see if we could find any evidence that AI was impacting firms beyond expenses.

What we found may not be the answer for which the legal industry has been waiting. We found, for example, that firm performance did structurally change, but it was not upended as some had predicted. In fact, it has largely remained strong. However, firms did not arrive at this state by automating their own document review. They earned it because the AI economy generates legal work, through capital raises and data center financings, licensing fights, regulatory scrambling, and the privacy and employment questions that arrive with every deployment.

Indeed, AI is reaching law firms as demand, not yet as efficiency, and the ongoing trade war has been doing the same thing on a different road. Two engines, both external, both running hot.

None of which means this question is fully answered. Three years in, and most law firms are still using AI experimentally, and almost none are measuring it in any formal way. Yet, firms are being paid (increasingly) handsomely to navigate and litigate a disruption they themselves have not yet finished absorbing. Of course, that's a rather uncomfortable position, given the market is being driven by two external engines. And it does alter the main question law firm leadership should be asking themselves. Rather than worrying about how to prove their AI investment is working, they should be asking what they’ll do when those external engines sputter and stop working.

Key takeaways

  • AI is driving legal demand more than efficiency — AI is generating new legal work involving financing, licensing disputes, intellectual property, privacy, and regulation; and that’s helping drive a significant increase in law firm revenue and profitability, even as measurable firm-wide efficiency gains remain elusive.
  • Law firms are raising rates and remaining highly profitable — Am Law 100 firms increased worked rates by a record 9.7% thus far in 2026, while overall legal demand grew 2.8% year-to-date and client resistance remained limited.
  • The next phase of AI could fundamentally change law firm economics — Firms have yet to substantially reduce junior staffing or demonstrate AI's return on investment at scale, but future automation could pressure traditional billable-hour pricing and staffing models.

The pricing of legal services in 2026

Before we can determine whether AI is having an impact on pricing, we first have to cover the current state of the market. After all, if one's trying to see whether something is impacting an ecosystem, one must first understand whether that system is already leaning toward feast or famine. In the case of the average large law firm, the feast is very much happening. The average standard rate1 for US firms is a startling $800 per hour,2 with that rate dropping to $720 after initial discounts are applied.

FIGURE 1:
Worked rate growth vs. inflation
By segment, year-over-year change

Year to date, June 2026

Am Law 1009.7%up 0.4 pt vs 2025
Am Law Second Hundred7.2%up 0.2 pt vs 2025
Midsize5.4%down 0.6 pt vs 2025
All segments7.1%down 0.2 pt vs 2025
Inflation (PCE)*3.1%up 0.3 pt vs 2025
The GreatFinancial CrisisTransactional DecadePandemicVolatilityThe AI Era0%2%4%6%8%10%YTD 20262024202220202018201620142012201020089.7%7.2%7.1%5.4%3.1%The GreatFinancialCrisisTransactional DecadePandemicVolatilityThe AIEra0%2%4%6%8%10%YTD 20262022201920162013201020079.7%7.2%7.1%5.4%3.1%

Line chart of worked rate growth for the Am Law 100, Am Law Second Hundred, Midsize and all segments, with PCE inflation, from 2007 to year to date June 2026. Growth fell sharply between 2008 and 2010, stayed low through the transactional decade, and has risen since 2021. In year to date 2026 the Am Law 100 is at 9.7%, the Am Law Second Hundred at 7.2%, all segments at 7.1%, Midsize at 5.4% and inflation at 3.1%.

All timekeepers. Billable time type; non-contingent matters. *PCE inflation measure (as of March 2026) = Personal Consumption Expenditures excluding food and energy. YTD 2026 = year to date through June 2026.

Source: Thomson Reuters 2026

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The prices of legal services have been surging for the last few years — a shift, notably, that did not begin with the trumpet-accompanied arrival of ChatGPT onto the world stage in late 2022. Rather, it began with the pandemic itself, which ushered in a period of price volatility that has uncapped rate growth for most of the years since. During those years, law firms of all sizes found they could raise rates two or even three times as much as they once could, first because inflation3 pushed up all prices in 2022-23, then because firms needed to catch up for lost ground. Now, firms are raising rates for different reasons altogether, most likely related to AI and the anticipation around it. That makes this a distinct enough stretch of the market to deserve its own name, and we have given it one in this report: the AI Era.

The segments decouple

It’s important to note though that not every tier of firms has seen the same ability to increase their prices, and 2026 put that in the freshest, starkest perspective. Law firms within the Am Law 100 were able to press massive increases in rates, growing by a new record 9.7% over the previous YTD June levels and notching a fourth consecutive year of rate growth above 7.3%, a feat no other segment has ever managed to achieve. Am Law 100 firms have been leading the charge for the better part of a decade now, pressing rates higher and higher. Each year, people question if this is the year they blink as client pushback finally materializes. Well, 2026 was not that year.

In normal years, that would be the end of it. For the better part of two decades, the segments have been in lockstep, following the same economic beats, accelerating and decelerating together with each year’s rate schedule.

Yet for the first time, someone blinked — and it was the segment that was already having the greatest troubles, midsize firms. The midsize segment decelerated its worked rate4 growth, bucking the ever-higher trend of the largest firms. This is not to say that midsize firms lowered their rates (they still grew by 5.4% on average, ahead of inflation), but rather they simply raised them less quickly than the year before.

Perhaps this was intended to work to the advantage of these firms, which have been growing demand far faster than their peers for years now on the back of mobile, price-conscious demand that they’ve been able to siphon off the ever-more expensive top law firms. Or, by backing off on increasing rates so aggressively, midsize firms may be hoping to lure more customers. Either way, the die is cast.

As for the final segment, the Am Law Second Hundred, it decided to neither accelerate nor decelerate, increasing their rates basically at the same pace it did in 2025.

FIGURE 2:
Rates vs. demand dynamics: key performance measures
All segments, year-over-year change
Demand, Q2 20263.0%up 0.3 pt vs Q1 2026
Worked Rates, Q2 20267.1%up 0.1 pt vs Q1 2026
-9%-6%-3%0%3%6%9%2026202420222020201820162014201220102008202620252024202320222021202020192018201720262025202420232022-9%-6%-3%0%3%6%9%20262023202020172014201120082026202420222020201820262025202420232022

Line chart of quarterly year-over-year change in demand and worked rates for all segments, from Q1 2007 to Q2 2026. Demand ranged from -8.2% in Q1 2009 to 7.3% in Q2 2021 and was 3.0% in Q2 2026. Worked rates have risen since 2021, peaking at 7.4% in Q2 2025, and were 7.1% in Q2 2026.

All timekeepers. Billable time type; non-contingent matters.

Source: Thomson Reuters 2026

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Despite this split, the overall result has been an unprecedented period of growth for law firms, with worked rates growing by 138% since pre-GFC 2006.

FIGURE 3:
FTEs leverage against Equity Partners
Relative FTEs (vs. equity partners)
Hover or tap the chart to compare periods. Select a series to hide or show it.

Line chart of relative FTEs against equity partners, for associates and non-equity partners, quarterly from Q1 2018 to Q2 2026. Associates rose from 1.10 to 1.30, with a high of 1.34 in Q4 2025. Non-equity partners rose from 0.69 to 0.94. The full data is available in the data table.

Source: Thomson Reuters 2026

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Rate increases are a year-to-year phenomenon. And while they track longer-term macroeconomic forces, they can also shift quickly when market conditions do. Underneath them sits a slower force with a subtle but important effect on price: leverage, meaning the title composition of the firm itself. That composition has been evolving for a long time, and that evolution predates the pandemic by years.

For example, large law firms have become increasingly leveraged, both in terms of adding more associates per equity partner, but also by enlarging their non-equity partnership. The logic is straightforward: Every timekeeper who bills more than they cost contributes margin to a partnership that is being divided among proportionally fewer people. This makes leverage a reliable lever on profit per equity partner, a critical metric.

What makes leverage worth a closer look now is that much of the talk around AI may be presaging a total directional change. The argument runs cleanly enough: The tasks that fill a junior associate's day — such as document review, first-draft research, and diligence — are precisely the tasks generative AI (GenAI) performs best. If that holds, firms will need fewer juniors for the same book of work, potentially resulting in a thinner senior cohort supervising machines instead of people. Further, rates should climb as a result, since the mix would then tilt toward high-charging partners and toward the low-volume, high-rate work that cannot be automated away.

However, that is not what we're seeing — at least so far. Associate-to-equity-partner leverage now sits at 1.3 associates per equity partner, up from the 1.13 that held through 2018 and 2019. The non-equity tier moved harder still, to 0.94 as of Q2 2026, from roughly 0.70 in 2018. And that pattern holds whether the ratio is built from headcount or from hours.

Together, that is a rise to 2.24 leveraged lawyers per equity partner, from about 1.83. The two purchases do behave differently on the invoice: associates buy leverage at the cost of dilution, since their rates sit far enough below partner rates that a rising share of their hours pulls the blended rate down; while non-equity partners bill close enough to equity partners to deliver the same leverage without the same drag.

However, firms did not choose between them; rather, they bought both and kept buying. Nothing here is signaling a reversal.

The forecast, made loudly and often since 2023, was that this would dramatically change. If GenAI absorbed the document review, first-draft research, and diligence that fill a junior associate's day, firms would need fewer juniors. Yet, the data says the opposite.

There are more associates per equity partner now than at any point before the pandemic, and firms have added internal tiers between the entry and equity classes rather than removing them. Set that next to the title-level rate figures, in which associate increases trailed non-equity partners by less than one percentage point, and the behavior is consistent in both directions. Firms are not pricing leveraged hours as though they are getting cheaper to produce, and they are not staffing as though they need fewer junior lawyers. Whatever firms say they believe about AI, they are still buying junior labor — and buying more of it than before.

The costs (or lack thereof) of rate increases

A firm can set its rates wherever it likes, and it may even hold the line on a matter or two, but if they aim too high across the board, clients will simply take their work to firms willing to price more modestly. In that way, legal demand is what tells us the real health of the market once the rates have been set — and for law firms in 2026, the news is almost universally good.

The average law firm's demand is up 2.8% year-to-date in 2026 compared to 2025, with performance actually accelerating from Q1 to Q2 despite ever-higher baselines to clear. Whether that surge of work is being driven by regulatory upheaval, evolving technology, or international instability, it has left firms busier than ever, even as their rates kept climbing. Performance is strong enough that productivity — measured as hours worked per lawyer — looks set to end the year flat or slightly up compared to last year, a feat the industry has statistically managed only about one-quarter of the time.

What makes 2026 genuinely notable is that demand is once again doing real work on firms' pre-realization performance, something it had barely done in years. Following declines in 2008-'09, law firm demand went essentially flat, and the decade that followed was less a recovery than a long rebuild toward those old highs, with rate increases doing nearly all the lifting on revenue. The first years of the AI era have not merely held that pace, they've broken it open.

FIGURE 4:
Indexed change: demand, worked rates and fees worked
All segments, indexed change since 2006

Year to date, June 2026

Demand+10.5%up 3.0 pt vs 2025
Worked Rates+137.9%up 15.7 pt vs 2025
Fees Worked+168.2%up 25.6 pt vs 2025
The GreatFinancial CrisisTransactional DecadePandemicVolatilityThe AI Era-20%0%20%40%60%80%100%120%140%160%180%YTD 2026202320212019201720152013201120092007The GreatFinancialCrisisTransactional DecadePandemicVolatilityThe AIEra-20%0%20%40%60%80%100%120%140%160%180%YTD 2026202220192016201320102007

Line chart of indexed change since 2006 for all segments, showing demand, worked rates and fees worked from 2006 to year to date Q2 2026. Fees worked and worked rates have climbed steadily and risen faster since 2021, while demand has stayed close to its 2006 level. In year to date 2026 fees worked are up 168.2%, worked rates 137.9% and demand 10.5%.

All timekeepers. Billable time type; non-contingent matters.

Source: Thomson Reuters 2026

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Demand has grown 11% since 2023. Set that against a 2006 baseline that took 17 years to clear, and against worked rates that climbed 138% since that 2006 baseline, and the shape of the change is obvious. Fees worked are now rising on two main drivers — rising rates and increasing demand — instead of one. And that means, price is no longer the only lever firms have.

However, let’s look at what is fueling that second engine. Regulatory upheaval, technological disruption, and international instability are all driving demand. And whatever weighting you assign them, they all represent the same commodity: Risk. Clients are not buying more legal services because they developed a taste for them. Rather, they are buying because exposure went up, and exposure has to be managed whether or not the budget likes it.

That makes this demand unusually sticky. A general counsel facing an enforcement action or a ruptured supply chain cannot decide to forgo these issues until a later quarter.

And that leaves clients in an awkward position. After years of compounding rate increases, and with the volume lever largely bolted in place, the only lever clients may have is the invoice itself, and the option of not paying all of it. Realization is therefore where you would think client pushback would surface first.

FIGURE 5:
Realization against worked (agreed)
Billing and collection realization, by segment
Hover or tap the chart to compare periods. Select a series to hide or show it.

Line charts of billing and collection realization against worked (agreed) rates, quarterly from Q2 2023 to Q2 2026, by segment. In Q2 2026 the Am Law 100 had billing realization of 89.4% and collection of 86.6%. The Am Law Second Hundred had 93.5% and 91.4%. Midsize had 94.2% and 92.4%. The full data is available in the data table.

Lawyers. Billable time type; non-contingent matters.

Source: Thomson Reuters 2026

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So far, however, it isn't surfacing. None of the three major law firm segments show a meaningful decline. Worked-to-collected realization — which measures how much of a matter's value a firm actually collects against what it originally worked — is relatively unchanged since 2023 for midsize firms. The Second Hundred had been sliding, but since the midpoint of 2025 they have recovered a full percentage point. Only the Am Law 100, the segment pressing hardest, has given up any real ground, and 1.5 percentage points against 9.7% rate growth in 2026 alone is not meaningful resistance.

With so little client pushback, it would be easy to conclude that all must be rosy for firms at the current time — and to some extent, you’d be correct.

Firm profitability is extremely strong halfway through the year, but it’s a strength blunted somewhat by the vast spending firms are doing, mostly on technology and talent, even as higher levels of rates and demand are rolling in the door.

FIGURE 6:
Direct expense growth vs. Tech + KM spend vs. overhead expense growth
Per FTE, all segments, year-over-year change
Hover or tap the chart to compare periods. Select a series to hide or show it.

Line chart of quarterly year-over-year expense growth per FTE for direct, overhead and technology plus knowledge management expenses, from Q1 2022 to Q2 2026. Direct expense growth fell from 11.3% to 5.3%. Overhead fell from 9.3% to 5.5%. Technology plus knowledge management rose from 6.3% to 10.3%. The full data is available in the data table.

All timekeepers. Billable time type; non-contingent matters.

Source: Thomson Reuters 2026

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Overall expense growth for firms sits at a historically elevated level, overshadowed only by the pandemic-era super spending of 2022. Direct expenses5 alone are up 5.3% per full-time equivalent (FTE) employees over June 2025 levels, while overhead expenses are marginally stronger at 5.5%. Both categories are running hot compared to inflation, as they have been over the last couple of years while firms have embroiled themselves in competition over talent and infrastructure. These growth rates pale in comparison, however, to that of technology and knowledge management (KM), which clocked 10.3% growth per lawyer through June 2026, nearly double the pace of direct and overhead expenses overall.

Indeed, law firms are not in the business of spending money out of a sense of amusement, and this stretch is no different. The entire industry is locked in a technological adoption phase that is more expensive and more fundamental than any in its history.

What is the market saying?

Which brings us to the question everyone actually wants answered. Firms are spending much more on technology per lawyer than they were even a year ago, on top of direct expense growth that’s already running hot. So, what is that doing to the market?

The honest answer is that it depends entirely on how far back you stand.

Up close, the evidence is everywhere, and much of it is impressive. Ask around and you will hear about the partner who got a dozen hours of their week back, the practice group whose realization moved several points in a single year, the workflow that used to take three associates and now takes one. These accounts are specific, usually credible, and there are a great many of them.

Yet, a collection of anecdotal examples is not a market. Zoom out from the practice group to the firm and the effect stops being as visible. And this has become a common enough complaint among the people responsible for measuring such things that it deserves to be taken at face value. At the individual level you can find the AI-driven time savings, but at the firm level the signal gets lost in the noise.

The reason is not hard to find. Our 2026 Future of Professionals report found that 69% of law firm professionals say they now use AI tools at least several times a week, which is remarkable penetration for a three-year-old technology. However, 92% of those same professionals say their firms are falling short of what the technology could deliver; and our AI in Professional Services rereport found that 85% say their firm either isn’t collecting AI return on investment (ROI) metrics at all or that they don’t know whether it is. Meanwhile, only 41% of professionals within law firms say their legal teams are using GenAI, up from 28% the year prior, which represents strong growth although is still a minority of the market.

Individual lawyers have adopted AI at a pace the industry has not seen in a generation. Law firms, however, have not yet rebuilt themselves around it.

Read those numbers together and the picture is clear enough. Individual lawyers have adopted AI at a pace the industry has not seen in a generation. Law firms, however, have not yet rebuilt themselves around it. The tools are in use, but the workflows, the pricing protocols, the staffing models, and the measurement apparatus mostly are not, and a firm cannot measure what it has not yet systematized.

We made several attempts to find an answer to this incongruity, and each one came back empty or inconclusive — not because the data was thin, but because the effect, if it exists, is not where conventional tests would look for it. The simplest test was a tripwire: if AI were doing the work associates used to do, associate productivity should show it. Instead, associates worked more hours in total while simultaneously gaining in productivity.

We then stepped back and sorted firms by how much they spend on technology and KM per lawyer, comparing the one-third of firms spending the most against the one-third spending the least. The raw gap was striking: nearly three percentage points more worked rate growth for the top spenders, and double the growth in fees worked per lawyer. However, almost all of it vanished once we controlled for the inconvenient fact that we had largely been ranking firms by how much money they had. Adjusted for segment composition, both groups landed within the range of ordinary variation for peer group comparisons.

Finally, we stopped sorting firms and sorted the work instead, splitting the practice areas by how well current models perform on the tasks that fill them rather than by anyone’s estimate of what ought to be automatable. If AI were moving this market, the effect should have arrived sorted. It didn’t. The practices most exposed to what AI can actually do don’t look compressed; they just look busy. All three tests shared the same flaw: each arrived with a theory about where the effect should be. So, we inverted the procedure and asked the data to tell us when law firm economics changed shape.

The breaking point

First, we take inflation-adjusted technology and KM spend per lawyer, month by month, and draw the straight line that best fits its growth rate. Then ask one question: Is there a point where a single line stops working? One in which the trend afterward is different enough from the trend before that you need two lines to describe it rather than one? That point is a breakpoint.

The test carries no assumptions about either law firms or AI. It only knows whether the level or slope of a series' trajectory changed at a statistically identifiable point in time.

We ran two versions of the test, built to follow different logic and, presumably, to reach different results. The first was told to find exactly two breaks; the second could find as many as the data would support, but every break carried a small penalty, so the model had to earn each one rather than chase monthly noise. Both returned the same answer: law firm spending behavior fundamentally changed twice since 2022: First in November 2023, and again in April 2025.

FIGURE 7:
Real overhead expenses per lawyer structural shift
All segments, year-over-year growth rate
Hover or tap the chart to compare periods. Select a series to hide or show it.

Line chart of monthly year-over-year growth in real overhead expenses per lawyer for all segments, compared with PCE inflation, from December 2022 to July 2026. Structural breaks are marked in November 2023 and April 2025. Growth for all segments rose from -3.1% in December 2022 to 6.7% in July 2026, while PCE inflation fell from 5.0% to 3.3%. The full data is available in the data table.

Structural breaks at Nov 2023 and Apr 2025 are shown in both models. Unrestricted model: penalizes complexity by BIC criterion. Restricted model: fixes the number of breaks at 2, with about 20% of the segment sample size.

Source: Thomson Reuters 2026

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Both of these dates are historically significant. November 2023 is the month Microsoft Copilot reached general availability and firms could begin purchasing business-oriented GenAI products. In other words, November 2023 is the month this technology stopped being a demonstration and became a line item.

April 2025 was Liberation Day, launching the tariff regime that followed — and from that month forward, firms accelerated their technology spending further. That second date does two things at once. It is the closest thing to a sanity check this method can offer: asked when the legal market changed, an algorithm with no opinions about law firms or AI surfaced an event nobody disputes. It is also the muddying effect which helped obscure the findings in our previous tests, so seeing it surface here is expected.

Then, for each law firm segment, we extrapolate its own pre-November-2023 trend forward, treat that as the counterfactual, and measure the gap against what firms actually achieved across technology and KM overhead expense growth per lawyer, revenue, and profit. And since we kept every figure as per lawyer, that meant none of it is a story about firms simply getting bigger.

FIGURE 8:
Technology spending shift consequences on revenue and spending
Year-over-year growth: observed vs. counterfactual
Hover or tap any chart to compare months.
ObservedCounterfactualGap (estimated effect)

Three line charts of observed growth against the counterfactual trend for overhead expenses, revenue and profit, monthly from December 2022 to July 2026, with a shift in November 2023. Immediate jumps: overhead 0.70 percentage points, revenue 4.10, profit 9.44.

Counterfactual = projected trend absent the technology investment shift. Gap = observed minus counterfactual, i.e. the estimated shift effect.

Source: Thomson Reuters 2026

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The data shows that the entire industry shifted. Technology and KM overhead stepped up 0.70 points at the break and kept widening at 0.24 points a month — representing not a purchase, but the beginning of an arms race that’s only gotten more pitched. Revenue growth jumped 4.10 points above its expected path and has effectively stayed there, narrowing by 0.06 of a point monthly. Profit jumped hardest: 9.44 percentage points per lawyer.

Then consider what that number was being asked to beat. Indeed, 2022 was a poor year for profitability — profit per lawyer fell against 2021 — and the rebound that followed was steep. A trend fitted to a contraction and a sharp recovery has an aggressive slope, and extrapolating it forward demands not merely strong profit growth but continuously accelerating profit growth, indefinitely.

Yet, law firms beat that for the better part of two years. They now sit marginally below it, decaying at 0.46 points a month, while still posting profit growth per lawyer above 5%. The honest reading is not that firms fell short. It is that they nearly kept pace with a benchmark that was close to unbeatable by construction.

TABLE 1:
Revenue and profit step-up by segment, November 2023 breakpoint
Revenue and profit step-up by segment, November 2023 breakpoint
SegmentRevenue step-upProfit step-upProfit trend after
Midsize+4.57 pp+6.76 ppHeld
Am Law Second Hundred+4.47 pp+7.39 ppHeld
Am Law 100+3.94 pp+3.44 pp−0.35 pp/mo (p=0.001)

pp = percentage points. mo = month.

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Further, the segments showed significant divergence both in how spending translated into profit and in how long the initial post-breakpoint gain in profit and revenue held after the initial jump. Midsize and Second Hundred firms stepped up and stayed up, the latter posting the largest projected gain of the three segments while its own spending trend barely deviated from expectation.

The Am Law 100 — the segment spending most aggressively per lawyer — stepped up the least and is the only one whose profit deceleration is statistically significant. However, that is less damning than it appears. Am Law 100 firms had the strongest 2022 of any segment and rebounded the hardest from it, which hands them the steepest pre-break trend in the market. They also remain, throughout, the most profitable segment per lawyer in the industry and the fastest growing. Falling behind your own previous trend is not the same as falling behind in totality.

What this does and does not prove

Before we get to the final conclusions, we should be clear what the above analysis does not show. First, it does not isolate AI: the break is in all technology and KM spending, of which GenAI is one component and never the whole.

Further, the second break contaminates the first. Our counterfactual runs from November 2023 forward, which means the window meant to reveal a technology effect contains a trade war, the same geopolitical development that’s muddied the waters on determining clear market direction. This design cannot cleanly separate the two. What we can say is directional: April 2025 cannot explain a step-up that happened seventeen months before it, but it can very plausibly explain why that step-up widened and held. So, if we’re trying to determine how the legal market structurally changed via a method with no theory or understanding of events beyond the metrics given, it has returned two dates. One is the month legal AI went on sale; and the other is the month the trade war significantly escalated.

Law firms have seen a meaningful surge in profitability that began before the tumultuous trade conflict, and that continues to this day.

This is the ultimate takeaway. Law firms’ current prosperity — seen with record high prices that are increasing as fast as ever, with profitability soaring despite stiff competition over talent and technology — really has two parents. First, the trade war sent clients scurrying to their law firms to cover a variety of legal matter needs. Indeed, that boost in client demand, and clients’ willingness or need to bear ever-higher prices, swamped law firms’ higher expenses.

Second, AI itself is driving demand as clients reach out to their law firms for a variety of AI-related legal matters — from licensing to data center financing, to privacy and liability issues. The statistics still cannot show that firms’ own investments in legal technology, and GenAI in particular, have generated provable ROI at the macroeconomic level. What they do show is that the surge in profitability began seventeen months before the trade war escalated, which is why we read the November 2023 break as the technology-driven one. This means that the major impact of AI on law firms may be demand — even though the impact on firm spending and efficiency is likely to continue to gain traction.

In short, law firms have seen a meaningful surge in profitability that began before the tumultuous trade conflict, and that continues to this day.

Three years in

It's worth remembering how little time has actually passed since law firms got their hands on this technology for the first time in any serious way — just three years ago. November 2023, and nothing since email has moved through this industry this fast. And email had the advantage of not requiring anyone to rethink how work gets priced, staffed, or supervised. Three years is not long enough to rebuild a firm around a technology, however, and as the adoption figures earlier in this report show, most firms have not.

What this year’s Law Firm Rates Report does show, and shows clearly, is that AI is already reshaping law firm economics — just not, at least for now, from the inside.

The analysis we conducted found a genuine structural shift in firm performance beginning in November 2023, a step-up of 4.1 percentage points in revenue growth and 9.4 points in profit per lawyer above their expected paths, and it has largely held.

Firms did not earn that by automating their own document review. They earned it because the AI economy generates legal work through a variety of matters, from capital raisings and financings, to licensing disputes and the IP fights. Our research shows that, at least immediately, the impact of the AI boom is reaching law firms as demand, not as efficiency — even though that may not be where the impact was most expected. Indeed, between AI-related legal demand and a continuing trade war that sent clients speeding to their legal advisors, demand is the channel our data can actually account for in 2026. Whether that continues, or the AI impact shifts to the other side of the ledger, pushing efficiencies and rate pressure from clients, is the key question for 2027.

Law firms are not living with the AI impact because of what it has done to their work; rather, they are living with it because of what AI is doing to their clients' world and to the volume of exposure that it has generated.

Admittedly, we expected that latter result at the onset of our research. We thought we’d find advanced technology at work inside the firm, with hours falling, output rising, and the efficiency gain showing up in the rate — upward, we thought, since a firm that gets more done inside an hour has not made that hour cheaper, it has made it worth more.

Instead, we needed to find the answer by looking into when law firm economics changed shape and were told that the month legal GenAI went on sale was the linchpin.

Simply, firms are not living with the AI impact because of what it has done to their work; rather, they are living with it because of what AI is doing to their clients' world and to the volume of exposure that it has generated. And that means, of course, this era may have a second half, and firms should not expect it to resemble the first. The first half pays firms to handle the disruption by raising the capital, papering the deals, fighting over the rights, and answering the regulators. That work is a byproduct of a technology being deployed at speed by everyone else, and it is generous, but it is finite in a way nobody can date.

The second half is the part in which the technology reaches the work itself, and where the questions this report could not answer become the only questions that matter. What does a leveraged pyramid look like, and how is its work priced, when much of what the bottom rungs have always done is automated away? What happens to a pricing model built on a billable hour when the hour itself stops being the unit of production?

Although nothing in our data says that the second half has begun for law firms, nothing says it won't, either. So, before that second part of the AI Age arrives, law firms would be wise to use this first half— the one which is paying handsomely for now — to build in their AI resiliency for the coming second half.

For example, here are several actions firms should take now and what they should be on the lookout for as they enter this second half.

Actions to take now
  • Start measuring AI use and ROI now: For firms looking to best position themselves, they should start measuring AI use and its return now, even if they do so imperfectly. A rough baseline today is worth more than a perfect one in three years.
  • Pilot alternative pricing models: Use the current window, while clients are still willing to absorb rate increases, to pilot alternative pricing on the matters most likely to move on price. A new model is far easier to test with clients when they are not pushing back than with ones that are beginning to.
  • Be deliberate about leverage decisions: Firms should treat leverage as a decision rather than a habit. Every associate hired today is a bet on what junior work will look like in five years, and that bet should be made deliberately so those associates can gain the additional support they’ll need to navigate a changing legal profession.

Market signals to watch for
  • Realization rates declining across all three law firm segments simultaneously: If realization declines across all three segments at once rather than just in one, that means client resistance has become a condition of the market, not a problem for individual firms.
  • AI-driven legal demand plateauing: If AI-related legal demand plateaus, the external engine may be cooling, and that may be a sign that clients are going to put more pressure on their outside law firms to lower costs or move more work in-house.
  • Alternative fee arrangement requests increasing: If client requests for alternative fee arrangements rise at scale, that likely means that clients have started pricing the billable hour themselves, based on their own estimates of AI efficiency. While firms should be having these pricing conversations with clients now, they should also be prepared to offer clients a variety of alternative pricing options.

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Indeed, while no one can predict exactly when the second half will begin, acting and being aware now is the best use anyone will ever find for a golden age, and it is the one thing that cannot be bought back once the age is over.

Methodology

Footnotes

  1. Standard rates refer to the book or sticker price of legal services, prior to any discounts, write-downs, or negotiations.
  2. Financial data for this report is provided by Thomson Reuters Financial Insights. Data is based on reported results from 184 US-based law firms, including 50 Am Law 100 firms, 58 Am Law Second Hundred firms, and 76 midsize firms (US-based firms ranked outside of the Am Law Second Hundred).
  3. Core Personal Consumption Expenditures (PCE) excludes volatile food and energy prices and is the Federal Reserve's (and our) preferred gauge of underlying inflation. Source: U.S. Bureau of Economic Analysis.
  4. Worked rates (also known as agreed-upon or negotiated rates) are the average amount a client and firm have agreed to as the baseline rate for a legal matter after initial discounts are applied, but before the bill is sent to the client.
  5. For these purposes, direct expenses refer to those related to fee earners, primarily the compensation and benefits costs of lawyers and other timekeepers. Overhead (or indirect) expenses refer to all other expenses of the firm, including occupancy costs, administrative and staff compensation and benefits, technology costs, business development expenses, and more.

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Law Firm Rates Report 2027: The AI impact you may not have been expecting
A new report finds that AI is currently boosting law firm profitability primarily by generating new legal demand rather than improving internal efficiency. And while record rate increases and strong client demand are sustaining growth, it’s critical for law firms to measure AI’s impact, rethink pricing and staffing, and prepare for future efficiency-driven disruption.
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