Dental Practice Valuation and Sale: What Determines the Price and How the Tax Works

A dental practice sale has two separate questions hiding inside one number: what the practice is worth, and how much of the price you keep after tax. Sellers obsess over the first and discover the second at closing. The order should be reversed — because two offers at the same headline price can differ by six figures after tax, depending entirely on structure and allocation.

Key takeaways

• Private-buyer sales still quote in percentage-of-collections terms (commonly 60–85%); DSO offers quote in multiples of adjusted EBITDA (commonly 4–8x, higher for multi-location groups).
• "Adjusted EBITDA" means earnings after replacing your clinical production with market-rate associate compensation — the adjustment that shrinks more practices than any other.
• Nearly all sales are asset sales. The IRC §1060 allocation across equipment, goodwill, and non-compete determines your tax character line by line.
• Equipment gain up to prior depreciation is ordinary income (§1245 recapture); goodwill is capital gain. Sellers want goodwill; buyers want equipment. The allocation is negotiated.
• If your practice is a C corporation (or was one recently), the personal goodwill question can be worth hundreds of thousands — get advice early.

How the price gets set

Collections rules of thumb. For traditional dentist-to-dentist sales, brokers still anchor on a percentage of the trailing twelve months' collections — historically 60–85% for general practices, with the range driven by profitability, payer mix (heavy-PPO and Medicaid books price lower per dollar of collections), location, facility condition, and whether the seller's referral relationships and hygiene recall survive the transition. A practice collecting $1.2 million with strong hygiene systems and modern equipment sits at the top of the range; the same collections with dated operatories and a 70% PPO write-off profile does not.

EBITDA multiples. DSOs and group buyers price on adjusted EBITDA — earnings before interest, taxes, depreciation, and amortization, after normalizing adjustments. The big one: your own clinical production gets repriced at market associate rates (roughly 28–32% of your collections). A practice netting $450,000 to an owner producing $1 million clinically might show only $150,000–$200,000 of true adjusted EBITDA once a replacement associate's cost is inserted. Multiples on that adjusted number typically run 4–6x for a single location, higher for multi-site groups with associate-driven production and management infrastructure — which is why the practices that command premium multiples are the ones least dependent on the seller's own hands.

What actually moves value in either framework: revenue durability (active patient count, new-patient flow, hygiene reappointment rate), provider dependence, payer mix and fee schedule quality, staff stability, lease terms (a below-market lease with 10+ years of runway is an asset; a month-to-month lease is a valuation haircut), and equipment/facility condition. Sellers planning 2–3 years ahead can move the number materially: build associate production, tighten hygiene, renegotiate the lease, clean up the books so the buyer's quality-of-earnings review finds nothing.

Asset sale mechanics: where the tax is decided

Practices operating as PLLCs and PAs almost always sell assets, not equity — buyers won't inherit unknown liabilities, and buyers want the depreciation and amortization that only an asset purchase delivers. The purchase price is then allocated among asset classes under IRC §1060, with both sides reporting the same allocation on Form 8594. Each line has its own tax character for you:

• Dental supplies on hand — ordinary income to the extent of gain; usually small.
• Equipment and furnishings — gain is ordinary income up to the depreciation you've taken (§1245 recapture). Since most sellers have fully depreciated their equipment via §179/bonus, essentially the entire equipment allocation comes back as ordinary income. This is the line buyers push to inflate (fast deductions for them) and sellers push to hold at defensible fair market value.
• Patient records and goodwill — capital gain (long-term for a practice held over a year), taxed federally at 15–20% plus the 3.8% net investment income tax where applicable. This is where sellers want the dollars.
• Covenant not to compete — ordinary income to you, amortized over 15 years by the buyer regardless of the covenant's stated term. Both sides actually prefer this allocation small; keep it nominal and let the real value sit in goodwill.
• Accounts receivable — typically retained by the seller and collected post-close (ordinary income as collected, same as always), or sold at a negotiated discount.
• Real estate, if you own the building, is a separate transaction with its own depreciation-recapture rules — and often the better long-term play is keeping it and becoming the buyer's landlord.

A worked shape: a $1,000,000 sale allocated $120,000 equipment / $20,000 supplies / $10,000 non-compete / $850,000 goodwill puts roughly 85% of the price into capital-gain territory. The same sale with $350,000 forced into equipment converts nearly a quarter of the price into ordinary income taxed at up to 37% — call it a $50,000–$60,000 swing from the allocation schedule alone. That's the page of the purchase agreement to fight over.

Installment sales. Seller financing (or an earnout structured as purchase price) can spread capital gain over the years payments arrive under IRC §453 — useful for bracket management, with the caveats that recapture income is recognized in full in year one regardless of payment schedule, and you carry the buyer's credit risk. Earnouts contingent on your continued employment risk recharacterization as compensation — ordinary income plus payroll tax — so draft contingencies around practice performance, not your presence.

The C corporation trap and personal goodwill

If your practice is a C corporation, an asset sale is taxed twice — corporate tax on the gain, then dividend tax when the proceeds come out to you. The established escape valve is personal goodwill: where the practice's value genuinely derives from the dentist's personal relationships and reputation rather than corporate assets (and no employment or non-compete agreement previously transferred that goodwill to the corporation), part of the price can be paid directly to the dentist for their goodwill — one level of capital-gains tax instead of two. It's well-supported case law but heavily fact-dependent and heavily scrutinized; it requires appraisal support and correct documentation, and it must be structured before signing, not backfilled. S corporations with C-corp history have their own lookback issue (built-in gains tax) if the S election is less than five years old at sale — one more reason exit planning starts years out.

For partnership/multi-member PLLC sellers, watch §751: the portion of gain attributable to receivables and depreciation recapture is ordinary even in an equity sale.

The seller's closing checklist

Tail malpractice coverage (who pays — see our insurance guide), final payroll and retirement-plan contributions and possibly plan termination, work-in-progress and AR cutoff rules, patient-record custody compliant with Florida Board of Dentistry rules, sales-tax clearance on transferred tangible assets, and the Form 8594 both sides will file — matching. Then the after-tax proceeds plan: what was deferred (installments, rollover equity if a DSO deal — see our DSO guide) and what lands in year one.

Official sources

• IRS — Sale of a business: https://www.irs.gov/businesses/small-businesses-self-employed/sale-of-a-business
• IRS — Form 8594: https://www.irs.gov/forms-pubs/about-form-8594
• IRS Publication 544 — Sales and Other Dispositions of Assets (recapture rules): https://www.irs.gov/publications/p544
• IRS — Installment sales (Pub. 537): https://www.irs.gov/publications/p537

Practitioner note: Get the allocation exhibit into the LOI, not just the final purchase agreement. Once price is "agreed" and the buyer's lender is engaged, your leverage over allocation collapses — the cheapest time to win the goodwill-vs-equipment fight is before anyone thinks the deal is done.

Fairlight advises dental sellers on valuation prep, allocation negotiation, and after-tax modeling — including cross-border sellers returning to Canada, where the U.S. sale and Canadian residency rules interact. Contact us or see pricing.