Published by
Throne of Profit EditorialReviewed by
William Hassell
Founder & Chief Editor, Throne of Profit
Most dentists know their overhead number — the percentage of collections that gets consumed before the owner is paid. What far fewer can do, off the top of their head, is say where it goes. The practice produces well, the schedule looks full, and yet at the end of the month the take-home is thinner than the production suggests it should be. The overhead percentage is a symptom. It doesn't tell you what's wrong; it just tells you something is. You can't fix an overhead problem you can only see as one big number — you fix it by breaking it into categories and finding the one that's drifted out of line.
A high overhead percentage almost never comes from every category being a little bloated. Usually one or two lines have crept up while the rest stayed reasonable, and the total hides which ones. An owner who can see the breakdown knows exactly where to look. An owner staring at a single percentage just knows they feel squeezed.
COLLECTIONS ($1.00)
│
├─ Staff / payroll ▇▇▇▇▇▇▇▇▇▇▇ largest slice
├─ Dental supplies ▇▇▇▇▇
├─ Lab fees ▇▇▇▇
├─ Facility (rent/util) ▇▇▇▇▇
├─ Admin / office / misc ▇▇▇▇
└─ Owner take-home ▇▇▇▇▇▇▇▇ ← what's leftOwner symptoms
Production looks strong, but take-home is thinner than it should be for the volume.
You know your overhead percentage but couldn't say which category is driving it.
Costs feel like they've crept up over the years without any single decision to blame.
Why this happens
Overhead drifts quietly. No one line ever jumps in a way that demands attention — a raise here, a supply price increase there, a slightly richer case mix at the lab, a rent bump at renewal. Each is defensible on its own, and none triggers a review. Because most owners track collections and one blended overhead figure but never the categories underneath, there's no place where the drift becomes visible. The number gets worse a fraction at a time, and by the time it's obviously high, the cause is spread across a year of small, forgotten decisions.
Common mistakes
Watching only the total. A single overhead percentage tells you there's a problem but never which category caused it.
No category benchmarks. Without a rough sense of what each slice should run, you can't tell a normal line from a bloated one.
Blaming production. Assuming the fix is always more patients, when the leak is on the cost side and more volume just scales the leak.
Lumping everything into "expenses." Supplies, lab, and staff behave completely differently; treated as one blob, none of them can be managed.
Reviewing once a year at tax time. By then the drift is a full year old and much harder to trace.
Business consequences
Overhead is the difference between a practice that produces well and one the owner actually profits from. Two practices with identical production and identical fees can hand the owner very different incomes purely because of where their costs sit. When overhead runs high and undiagnosed, every hour of dentistry returns less, the owner works harder for the same take-home, and the practice becomes fragile — a slow month that a lean practice absorbs becomes a stressful one. The owner who knows their breakdown by category catches drift while it's small, protects margin without cutting quality, and keeps more of what the practice earns.
How experienced operators think about it
They treat overhead as a set of independent categories, each with its own healthy range, not as one number to worry about. The instinct isn't "cut costs" — it's "which line is out of range, and why?" Staff, the largest slice, is judged against production, not in isolation. Supplies and lab are watched as a percentage of collections and questioned when they climb. Facility is mostly fixed but revisited at renewal. The goal isn't the lowest overhead — starving the practice of staff or materials backfires — it's right-sized overhead, where each category earns its place and the total leaves a healthy margin.
Practical actions
Break overhead into categories. At minimum: staff/payroll, dental supplies, lab fees, facility, and admin/office. You can't manage what you can't see separately.
Set a healthy range for each. Compare your categories to typical ranges for practices like yours, so you know which line is normal and which has drifted.
Find your one or two outliers. Rank the categories against their ranges; the problem is almost always concentrated, not spread evenly.
Track the ratios monthly, not annually. Watch each category as a percentage of collections so drift shows up in weeks, not at tax time.
Fix the outlier at its root. A high supply or lab line has a specific cause — address that, rather than making across-the-board cuts that hurt care.
Questions every owner should ask
If someone asked which category is driving my overhead, could I answer without guessing?
Which of my cost lines has drifted the most over the last few years, and why?
Am I chasing more production to fix a problem that actually lives on the cost side?
This is general business information, not dental/clinical or professional advice. Consult a qualified professional for your situation.
Frequently asked questions
What's a healthy overhead percentage for a dental practice?
There's no single right number — it varies with specialty, location, whether you own or lease, and how you pay yourself. That's exactly why the total is a weak tool. A far more useful question is whether each category sits in a reasonable range for a practice like yours. Two practices can carry the same total overhead with very different health underneath, so focus on the breakdown and the outliers rather than chasing one benchmark figure.
My overhead is high but I can't cut without hurting the practice. What now?
That usually means you're looking at the total instead of the parts. Break it into categories and you'll almost always find the pressure sits in one or two lines, not everywhere. A supply bill or lab bill that's crept up has a specific, fixable cause that doesn't touch patient care. Broad, across-the-board cutting is what hurts a practice; targeted correction of the actual outlier protects both margin and quality.
Related articles
Running a Profitable Dental Practice — the pillar.
Your Supply Bill Is Creeping Up: Getting It Under Control — one category up close.
Managing Lab Bills Without Sacrificing Quality — another category up close.
Why Jobs Take Longer Than You Quoted — the universal cost-drift problem.
Where Time Leaks on a Typical Job — finding the leak by breaking the whole into parts.
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