Lesson No. 5: Billables and Development—The False Tradeoff

Billable hours are often treated as the primary measure of productivity in law firms—they are visible, quantifiable, and easy to compare. But what they measure—and what they do not—are often conflated.

Billables track time; they do not track understanding.  And over time, that distinction matters.

What Billables Actually Measure

Billable work provides exposure.

Associates are assigned tasks, given access to matters, and asked to contribute. Over time, they accumulate hours—and with those hours, experience. But exposure is not the same as development.

An associate can complete the same type of assignment repeatedly—researching, drafting, revising—without fully understanding the reasoning behind it. They may follow prior edits, replicate structure, and reach the right result, but without building the judgment that makes the work transferable.

Billables reflect that the work was done; they do not reflect how well it was understood.

Exposure to work is not the same as development within it.

In practice, one of the simplest ways to assess this distinction is during routine work review. When reviewing an assignment, a brief follow-up—asking the associate to explain their reasoning or identify alternative approaches—can reveal whether the work reflects understanding or repetition. These moments take little time, but they provide a clearer view of development than hours alone.

When Efficiency Is Deferred

Work performed without sufficient instruction often appears efficient in the moment—time is recorded, assignments are completed, and deadlines are met. But inefficiencies are often deferred rather than avoided.

Revisions increase, issues are revisited, and work is redone—sometimes by the associate, sometimes by the partner, and often with the client noticing the additional billing tied to revisiting prior work.

Over time, those inefficiencies surface where they are more visible: write-offs, client questions, and compressed timelines to correct what was not fully developed at the outset.

What appears efficient at the billing stage often becomes costly at the review stage.

In practice, these patterns are often visible during billing review. Entries that reflect repeated work on the same issue, extended time on discrete tasks, or multiple revisions of similar deliverables are not simply billing questions—they are development signals. Addressing them early, through brief clarification or targeted feedback, reduces the likelihood that the same inefficiencies recur.

The Misleading Signal of High Billables

High billable hours are often interpreted as a sign of strength.

The highest billing associates are perceived as committed, showing a strong work ethic, and—most misleadingly—considered productive.  But high billables can also signal something else, e.g., time spent navigating uncertainty, reworking assignments, or filling gaps in understanding without guidance.

The associate with the highest billables is not necessarily the most developed. And in some cases, their time will be examined more closely—not only internally, but by clients. Because billing hours is only one part of the process. Those hours must also be accepted.

While it is easy to see associates exceeding billing expectations as only deserving praise, those hours warrant the same level of review as those falling short.

In practice, this means looking beyond totals. Reviewing how time is spent—where it accumulates, how often work is revisited, and whether similar issues appear across matters—provides a more accurate picture of development. High billables, viewed in isolation, can obscure where additional clarity or guidance is needed.

Reframing the Tradeoff

Billables and development are often framed as competing priorities. Time spent explaining is viewed as time not billed. Time spent working is viewed as progress. But in practice, the relationship is not oppositional—it is compounding.

Clarity reduces rework. Context improves judgment. Feedback shortens revision cycles. The result is not less productivity; it is more reliable productivity.

Lesson No. 3 addresses how that development is built.

This distinction explains why it matters.

What Is Actually Being Measured

When billables become the primary lens, it is easy to assume they reflect performance in full. But they measure only one dimension: time spent.  They do not capture how quickly understanding is developing, how much rework is required, or how confidently decisions are made. Over time, those factors shape both efficiency and outcomes.

In practice, this can be addressed by pairing billing review with periodic development check-ins. Not formal reviews—but brief, focused conversations about how work is being approached, where uncertainty exists, and how judgment is developing. These conversations often surface what billing alone cannot.

Firms that prioritize development are not ignoring billables.  They are recognizing their limits.

The Bottom Line

Billables measure activity. They do not measure understanding.

Exposure is not development.

And over time, the difference is reflected in both the quality of the work—and the cost of producing it.

Weekly Reflection: As you review billables this week, what are you measuring—activity or development?