Payroll as a Percentage of Collections: The Benchmark Most Practices Skip

Six points of payroll on a $1 million practice is $60,000 a year. That is the difference between a practice that buys its own chair and one that finances it, and most owners cannot tell you within three points where their payroll ratio sat last month.

Our view: a staff payroll ratio above 30% of collections is almost never proof that you are paying too much. It is proof that you bought chairs you never filled. That is the sentence an informed owner can argue with, because the reflex response to a bad payroll number is a wage freeze, a trimmed bonus, or a quiet decision not to backfill the assistant who left in March. We think that reflex makes the number worse by the fourth quarter, and the arithmetic below shows why.

Payroll Is the Only Overhead Line That Moves Every Two Weeks

Rent is fixed for five years. Your lab bill tracks your case mix. Supply costs arrive as invoices you mostly cannot negotiate, and the ADA Health Policy Institute reports equipment and supply expenses rose 5% since the start of 2025, with dentists naming staffing and overhead costs among their top financial concerns heading into 2026.

Payroll is different. It is the largest line, it is the one you re-authorize every pay period, and it is the one line where a decision made in a hallway in February compounds for the rest of the year. That is exactly why it deserves a running percentage rather than an annual glance at the P&L your accountant hands you in March.

Where 22 to 28 Percent Comes From, and Who Says So

The number most owners have heard is 22% to 28% of collections for staff salaries and benefits, with trouble above 32%. That range comes from Scott Leune's Breakaway Practice profitability framework, and it is worth being precise about its standing: it is a consulting benchmark published by its author, not an ADA position and not a government or peer-reviewed figure. Treat it as a practitioner's rule of thumb from someone who has seen a lot of P&Ls, which is useful, and not as a published standard, which it is not.

The number that does carry an association's name is the ceiling. The ADA's own key performance indicators put overhead at 63% or less of total income. That ceiling is what makes payroll discipline non-optional, because payroll is the biggest tenant in a 63% building.

Run the stack on a practice carrying 33% staff payroll: 33 for staff, 8 for lab, 6 for supplies, 7 for facility, 3 for marketing, 8 for everything else gets you 65%. You have blown the ADA ceiling before the owner takes a dollar of compensation. Drop staff payroll to 27.7% and the same stack lands at 59.7%. Nothing else changed. One line did all the work.

Two Full-Time Hygienists in a $1 Million Practice Breaks the Benchmark

Here is where the 22% to 28% window collapses for a lot of practices, and it has nothing to do with generosity. The Bureau of Labor Statistics puts the median annual wage for dental hygienists at $98,100 as of May 2025. Load that with payroll taxes, workers comp, and any health or retirement contribution at a conservative 13% and one hygienist costs $110,853.

Two full-time hygienists cost $221,706. On a practice collecting $1 million, that is 22.2% of collections before you pay a single assistant, a single front-desk salary, or a sterilization tech. You are at the bottom of the benchmark with two employees on the roster.

That math has a hard implication most owners resist: a $1 million general practice supports roughly one full hygiene schedule plus one or two extra days, not two full schedules, unless hygiene itself is collecting north of $300,000. If you are running two full-time hygienists at $1 million in collections, your payroll ratio is not a wage problem. It is a schedule problem with a payroll receipt.

What Most Owners Get Wrong: They Freeze Wages Instead of Filling Chairs

The specific mistake belongs to a specific owner: the solo doctor in a four-to-six operatory practice collecting somewhere between $700,000 and $1.1 million, usually five to twelve years in, who looks at a 33% payroll ratio and announces no raises this year. Sometimes it is dressed up as a pay freeze pending a bonus plan. Sometimes it is just silence at review time.

For scale, The Dental Signal Practice Market Index, built from dental practice broker listings, shows a median of $990,500 in collections among practices currently listed for sale (middle half $659,630 to $1,500,000, n=856), and a median of 5 operatories (n=857). Those are asking-side figures, practices on the market rather than a cross-section of all practices, but they tell you the size of the business we are describing. The Index tracks collections and operatories, not payroll, so nobody should quote it as a payroll benchmark.

Why the freeze backfires: your best hygienist is the most portable asset in the building, and she is not negotiating against your P&L, she is negotiating against the practice four miles away. Lose one, run two months of temp coverage at a premium, and your payroll percentage goes up while your production goes down. You paid more and produced less in service of a ratio.

The second mistake is quieter. Owners compare their number to a consultant's range without matching the definitions, which is like comparing your mile time to someone running a different distance.

Three Ways the Ratio Lies to You

• Doctor compensation in or out. BLS puts the median annual wage for dentists at $176,110 as of May 2025. Put one dentist's pay at that level inside payroll on a $1 million practice and you have added 17.6 points to the ratio. The 22% to 28% window is staff only. If an associate's 30% of collections is sitting in the same payroll account, your number is not comparable to anything.
• Taxes and benefits in or out. Gross wages of $300,000 become $339,000 once you add payroll taxes, workers comp, and benefits at 13%. That is a four-point swing on a $1 million practice from bookkeeping alone.
• Collections or production in the denominator. At a 96% collection rate, $300,000 of payroll is 30% of production and 31.3% of collections. Use collections. You cannot pay a hygienist in production.

The $1.02 Million Practice That Added Payroll and Got Healthier

Take a six-operatory general practice collecting $1,020,000 with loaded staff payroll, doctor excluded, of $336,600. That is 33%.

The wage-cut route to 27% means payroll of $275,400, a reduction of $61,200. At $52,000 loaded per clinical position, that is 1.18 people gone. Cut an assistant and the doctor's second column dies with her, so collections fall and the ratio barely improves.

The growth route looks impossible at first glance: holding payroll flat, you would need $1,246,667 in collections to hit 27%, a jump of $226,667 in one year. So do it the other way, by buying production on purpose.

Add one hygiene day a week at $2,200 collected per day across 46 weeks and you add $101,200. The cost is 0.2 of a hygienist, $19,620 in wages at the BLS median, call it $22,170 loaded. That hygiene day runs a marginal payroll rate of 21.9%, well under your 33% average, which is the entire point. Net of that wage, it contributes $79,030.

Now the empty chair. Six operatories at $1,020,000 is $170,000 per operatory. The Practice Market Index median for collections per operatory among listed practices is $200,000, with the middle half between $146,938 and $266,667 (n=732). Hire one full-time assistant at $52,000 loaded so the doctor can run a second column two days a week at $1,900 collected per day, 92 days a year, and you add $174,800 at a 29.7% marginal payroll rate.

Last move, and it is the one we would not flinch on: front office. Two and a half full-time equivalents at $52,000 loaded is $130,000, or 12.7% of the original collections. Move insurance verification and recall to a defined outside workflow, run 1.5 in-house, and you free $52,000 without cutting one person's hourly rate.

Where that lands: collections of $1,296,000, loaded staff payroll of $358,770, a ratio of 27.7%. Your payroll bill went up $22,170 and your payroll problem went away.

We would run that sequence over the wage freeze every time. One of them ends with a higher-paid, fully staffed practice at 27.7%. The other ends with a 31% practice, a temp agency invoice, and a hygienist working four miles away.

What Would Change Our Mind

If we started seeing practices at 33% payroll with genuinely full schedules, hygiene booked six weeks out, and $230,000 or more collected per operatory, we would concede the point: that would be a wage-market problem, not a production problem, and the only honest answers would be fee increases and payer mix. We are watching two things into 2026. First, whether collections per operatory in our Index drifts up or stalls while hygiene wages keep climbing. Second, whether the 5% rise in equipment and supply costs the ADA documented forces payroll's allowable share down, which would make 27% a ceiling rather than a target.

Run the Ratio Before Friday's Payroll

Pull the last three months of payroll, strip out every dollar of doctor compensation, add back payroll taxes and benefits, and divide by collections for the same three months. Write the number on one line and put next to it your collections per operatory for the same period. If payroll is over 30% and collections per operatory is under $170,000, open the schedule, not the wage scale. Pick the one chair you can fill before year-end and cost out what it takes to staff it.

Once you have your number, check it against a full overhead stack rather than payroll alone, because a 27% payroll ratio sitting under a 68% overhead is still a practice in trouble. Our overhead calculator takes collections and your major expense lines and shows you where you stand against the ADA's 63% ceiling, line by line. Take ten minutes and run your own numbers, then go look at Friday's schedule with the answer in hand.