Dental Practice Acquisition Due Diligence Checklist for 2026

A $1.4 million general practice came to market this year at $1.68 million with a broker's one-page "cash flow" summary showing $420,000 of owner benefit. Run the same practice through an honest recast and the real adjusted EBITDA is $150,000, which means the asking price is 11.2x earnings for a single office whose production depends on one retiring dentist's hands. You don't buy a practice's collections. You buy the odds that its patients come back after the person whose name is on the door stops showing up.

Here's the claim an informed owner can argue with: due diligence on a dental practice is not an audit of the seller's past. It's a forecast of the doctor seat, and almost every item on a standard broker checklist is irrelevant to that forecast. Verifying that the practice really collected $1.4 million tells you nothing about whether it collects $1.4 million under you. We think that's where deals die, and we think most buyers spend 90% of their diligence budget on the part that doesn't matter.

$189 Billion of Demand Won't Save a Bad Deal

The macro case for buying is genuinely strong. National dental expenditure hit $189 billion in 2024, a 4% inflation-adjusted increase over 2023, per ADA Health Policy Institute. Dentist employment is projected to grow 6% from 2025 to 2035 with roughly 4,800 openings a year, according to the Bureau of Labor Statistics. Demand is not the problem.

That's exactly why bad deals get signed. A rising category gives every seller's broker a story, and it gives every buyer permission to skip the uncomfortable questions. Category growth does not transfer at closing. Patients transfer, or they don't.

The Add-Back Page Is Where the Deal Is Actually Priced

Dental practices trade at 5x to 11x adjusted EBITDA depending on size and buyer type, with $1 million to $3 million EBITDA practices in the 7x to 9x range and private equity backed platforms at 9x to 11x. Note what that implies. A practice with $1 million of EBITDA is doing somewhere north of $5 million in collections. The 9x number you heard at a study club has nothing to do with a five-operatory office in a strip center.

The number that matters is the denominator, and the denominator is built on one line: what does the doctor seat cost once the seller leaves? Sellers add back their entire compensation, because to them it was profit. To you it's a job that has to be filled, either by an associate you pay or by your own hands, which you could have sold elsewhere.

Any recast that prices the doctor seat below the $176,110 median annual wage for dentists (May 2025) is fiction. If the seller personally produced $900,000 and you plan to replace that with an associate at 30% of production, that's $270,000 of real cost.

Take the broker's $420,000 of "owner benefit," subtract the $270,000 the seat actually costs, and adjusted EBITDA is $150,000.

At the bottom of the published range, 5x on $150,000 is $750,000.

Against a $1.68 million ask, the seller is requesting 11.2x.

Our view: that's platform pricing for a one-doctor office, and we wouldn't take that deal.

What Most Buyers Get Wrong: Hiring the Seller's Advisors

The specific mistake is this. First-time buyers, usually associates three to six years out with an SBA pre-approval in hand, let the listing broker recommend the transition CPA and the transition attorney. Those advisors are competent and they are repeat players in that broker's pipeline. They will verify the tax returns, reconcile the production reports, confirm the lease is assignable, and hand you a clean report. Every statement in it will be true. None of it will tell you whether the patients stay.

The second version of the same mistake is accepting the seller's active patient definition. Most practice management reports default to a 24-month or 36-month window. A patient last seen 29 months ago is not an active patient, they're a lead. We've seen targets lose a third of their "active" count the moment the window tightens to 18 months. Ask for the report both ways, and ask for it exported in front of you.

Third: buyers obsess over equipment age and ignore provider mix. A compressor costs $8,000 to replace. A seller who personally produced $240,000 a year in molar endo and implants that you intend to refer out costs you $240,000 a year, every year, and it never shows up on an equipment schedule.

An 18% Patient Leak Takes This Deal Below Zero

Stay with the same $1.4 million practice. Assume you pay the $1.68 million ask and lose 18% of collections in year one, which is a normal outcome in a transition with no real seller overlap and a stale recall system. That's $252,000 of collections gone.

Variable costs follow revenue down by roughly 35%, so you save $88,200 on supplies, lab and some hygiene hours.

Net damage to earnings is $163,800.

Applied to the honest $150,000 of adjusted EBITDA, you are now at negative $13,800.

Meanwhile the note doesn't care. A $1.68 million acquisition loan at 8.5% over 10 years runs about $20,830 a month.

That's $249,960 a year of debt service against a practice generating nothing above the doctor's compensation.

You will survive, because you're the associate and you're drawing the $270,000 the model assigned to the seat. But you bought yourself a job with a personal guarantee attached, and you did it at 11.2x. If we were advising, we'd open at $1.05 million with $300,000 held back against trailing 12-month collections, and we'd walk above $1.3 million without a six-month seller work-back written into the purchase agreement.

Five Chairs at $280,000 Each Means There's No Easy Growth

Capacity is the diligence item nobody runs, and it decides whether your turnaround plan is arithmetic or fantasy. According to the Practice Market Index, our dataset of 925 dental practices currently listed for sale, the median listed practice has 5 operatories (n=754) and collects a median of $200,000 per operatory, with the middle half between $146,875 and $268,708 (n=643). Median collections across listed practices run $957,588 (n=753). These are practices on the asking side of the market, not a cross-section of all practices, and they say nothing about what anything sells for.

What they do give you is a yardstick. Our $1.4 million target in five operatories is doing $280,000 per chair.

That's above the top of the middle half for listed practices, which means the chairs are close to full. Your growth plan cannot be "add new patients." It has to be a sixth operatory, extended hours, or a fee schedule correction, and each of those is a capital or contract project with its own timeline. Flip it around: a target collecting $120,000 per chair has room, but then the real diligence question is why five chairs sit idle in a market with 4% real expenditure growth. Empty chairs are either an opportunity or a diagnosis, and you need to know which before the LOI.

The Checklist We'd Run, Ordered by What Kills Deals

• Active patients at 18 months, exported live. Then new patients per month for 24 trailing months, and hygiene pre-appointment rate. A practice below 80% hygiene reappointment is leaking before you arrive.
• Production by provider, by procedure code, 36 months. Identify every dollar the seller produced that you will not produce. That number comes straight off your pro forma, not off a risk list.
• Doctor seat cost. Price the replacement at real market comp, benchmarked against the $176,110 median as a floor, not a target. Recast every add-back against it.
• Payer mix and fee schedules, plan by plan. Which contracts assign, which require fresh credentialing, and how long that takes. Budget 90 to 180 days of reduced reimbursement and model the cash gap.
• Existing group or DSO entanglements. With 16.1% of U.S. dentists affiliated with a DSO in 2024 per ADA HPI data, management services agreements, supply commitments and group purchasing contracts are common and they can outlive the seller. Read them before you price them.
• Collections quality. Adjustments and write-offs as a percentage of production, AR over 90 days, and any prepaid balances for ortho, implants or membership plans. Prepaid work is a liability you perform for free.
• Team. Wage schedule, tenure, accrued PTO, and a direct read on whether the lead hygienist and the front desk stay. Check for 1099 hygienists, which is a misclassification exposure you inherit.
• Lease. Assignment rights, remaining term plus options long enough to outlast your note, rent as a percentage of collections, CAM history, and any relocation or demolition clause.
• Compliance and claims. OSHA and HIPAA posture, malpractice tail coverage, board complaints, and any open payer audits.

Nine items. Four of them are about the doctor seat and the patient base. That ratio should match your budget, and in most deals it doesn't.

Do This Before You Sign the LOI

Pull the active patient report at 18 months and the production-by-provider report for 36 months, and do it before you agree to any price. Recast the seller's add-backs with a real doctor cost in the model, then divide your offer by that number and say the multiple out loud. Insist on a seller work-back of at least six months and a holdback tied to trailing 12-month collections, because those two terms are worth more than any price concession you'll win. If the seller refuses both, you have your answer about how transferable the practice is.

We're tracking two things into 2026: whether collections per operatory on the asking side starts compressing as financing costs stay elevated, and whether holdbacks and earnouts begin appearing in doctor-to-doctor deals the way they already do in platform acquisitions. What would change our view on price is retention data. If transitions with a six-month seller overlap reliably held attrition under 5%, the top of the asking range would start looking defensible. We haven't seen that evidence yet.

Before you make an offer, recast the target's add-backs and test the price against a real doctor cost: our free valuation calculator will take your target's collections, operatory count and recast earnings and show you the multiple you're actually paying. Run your own numbers on the deal in front of you, then compare the result to the asking price on the listing sheet.