Secrets of Associate Productivity 1: Is There A ‘High Productivity’ Leverage Model?

28 November 2025

Productivity is a hot topic for law firms. Uncovering what the most productive firms are doing differently promises to help firms maximize their revenues, without needing to hire more people or increase prices for clients.


Pirical has been working with customers to diagnose their current state of productivity and to test ideas about what really drives productivity across the market.

Case study: Firm X is a Mid-Market National Firm in the UK

Firm X’s Associates Are 20% Or £10m Per Year Less Productive Than Peer Firms’, Despite Having Similar Chargeable Hours Targets.

Bar chart comparing median chargeable hours per FTE in UK law firms (Jan-Dec 2024). Raw firms: 1,427, Firm X: 1,168.

Across the Market, We Know that New Starters Are Up to 3% Less Productive Than Long-Tenured Associates. Could Low Attrition Rates Be One of the Things Peer Firms Are Doing Differently?

Chart showing median chargeable hours for UK legal staff in 2024, by tenure group: <2, 2-5, and 5+ years.

💭 Does Firm X Have Particularly High Attrition?

Peer firms do have lower attrition than Firm X.

Attrition rates in the UK, Jan-Dec 2024. Firm A has 10% attrition, Peer Firms have 7%.

💭 Would We Expect High Attrition to Drive Low Productivity?

In general, we wouldn’t expect associate attrition to drive productivity. If we look at the most productive firms in the market (the leaders) attrition is similar to the least productive firms (the laggards).

Bar graph showing overall attrition rates for Market Leaders and Market Laggards in the UK, Jan-Dec 2024.

💭 Are the Most Productive Firms Better At Exiting Low-Productivity Lawyers (‘Low Performers’) and Retaining High-Productivity Lawyers (‘High Performers’)?

When we segmented attrition by productivity quartile, we found that the most productive firms and the least productive firms are exiting low performers, and retaining high performers, at similar rates.

Attrition rate chart: Low performers (29%), high performers (5%). UK legal professionals, 2024.

💭 What About Firm X? 

Firm X is losing significantly more high performers than low performers.


When it comes to attrition, while Firm X is out of step with peers, we wouldn’t these issues to be a primary driver of their low productivity.

Bar graph showing attrition rates for legal professionals by productivity quartile, Firm X, UK, Jan-Dec 2024.

One Hypothesis is That Peer Firms Might be Structured in a Particularly High-Productivity Way, Perhaps with Fewer Associates Per Partner (So There’s More Work to Go Around).


While very important to partner profitability, it turns out that overall associate:partner leverage ratios do not differentiate the most productive firms from the least productive firms.

Bar graph comparing FTE headcount per partner in UK law firms, categorized as market leaders and laggards.

We can see, however, that associate productivity does vary by seniority with a peak around 3-5 years of experience.

Bar graph showing median chargeable hours per year for UK legal professionals (associates, counsel, directors) in 2024, by PQE group.

Firm X does actually have higher overall leverage than the market.

Bar graph showing FTE Headcount Per Partner for UK law professionals in 2024. Data by role: Stoneleaders (2.9), Market Leaders (3.0), and Amin 3.8.

💡 But That Leverage at Firm X is Concentrated in a Generally Low-Productivity Seniority Group (Associates With 12+ Years of Experience).

Bar chart: FTE headcount per partner, grouped by seniority level. Data from Jan-Dec 2004, UK. Green and gray bars compare values.

These two actionable opportunities are examples of many identified by Pirical for Firm X. Together they will help close the £10m revenue gap between peers and better compete in today’s legal market.


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