The asymmetry in what gets measured
Most firms have a precise view of billable realization: hours logged, hours billed, write-offs, utilization by staff level. Admin overhead doesn't get the same treatment. It shows up as a salary line, full stop — not as a cost that fluctuates with backlog, turnover, or busy-season load. That asymmetry means the number partners actually watch (utilization) doesn't capture where a real chunk of the margin is going.
Where the cost actually lives
When an admin role is out sick, behind on intake, or newly hired and still ramping, the work doesn't stop — it gets absorbed by whoever's available, and that's usually a senior associate or a partner. That's your highest-cost time being spent on your lowest-value work, and it almost never gets coded that way in your time-tracking system. It just reads as "a slower week."
The real margin leak isn't the admin salary. It's the senior staff hours quietly absorbed every time the admin function has a gap.
Busy season makes it worse, not better
Admin backlog and staff bandwidth are inversely correlated with exactly the season your firm can least afford it. Document intake volume spikes during busy season at the same time firm-wide capacity is tightest — which means the gaps in admin throughput get absorbed by staff who are already at their limit, at the moment their billable hour is worth the most.
Reframing the cost calculation
If you only measure admin cost as a salary line, automating it looks like a modest efficiency gain. If you measure it as the senior-staff time it currently absorbs during every gap, ramp period, and busy-season spike, the calculation changes. The question isn't "what does this admin role cost us." It's "what does it cost us when this admin role can't keep up — and how often does that actually happen."
Related: The hidden cost of "we've always done it this way" →