Buying or Selling a Dental Practice: Valuation, Goodwill, and the Deal Structure That Decides Your Tax Bill

Buying or selling a dental practice is a transaction most dentists go through once or twice in a career, so neither side walks in with much practice at negotiating it. The purchase price gets most of the attention at the letter-of-intent stage, but the number that actually determines what each side keeps is the allocation behind that price: how much goes to equipment, how much to patient charts, how much to a non-compete, and how much to goodwill. Each category is taxed differently, the buyer and the seller have opposite incentives on almost every line item, and the IRS requires both sides to file matching allocations on Form 8594. Layered on top is a bigger structural choice, whether the deal is an asset purchase or a purchase of the entity itself, and for practices organized as corporations, whether a Section 338(h)(10) election can get both sides what they want at once. This guide walks through how dental practices get valued, how the price gets divided for tax purposes, and how a buyer and a seller each protect their own numbers in the process.

What’s my dental practice actually worth?

Three valuation approaches show up in nearly every dental practice sale, and a serious buyer or seller should expect to see all three rather than relying on one.

The percentage-of-collections method, the one most dentists have heard of informally, applies a multiple (typically 65% to 85% of trailing twelve-month gross collections) directly to revenue. It is fast and it is the language brokers use in casual conversation, but it says nothing about profitability: a practice collecting $1.2 million with 45% overhead is worth more per dollar of revenue than one collecting $1.2 million with 70% overhead, and the method treats them the same unless the multiple itself is adjusted for margin.

A more rigorous approach is a discounted cash flow (DCF) analysis, projecting the practice’s free cash flow forward five to ten years and discounting those future dollars to a present value using a rate that reflects the income stream’s risk. A single-provider practice where patients follow the selling dentist personally carries more risk than a multi-provider practice with an established associate base, and that risk shows up as a higher discount rate and lower present value. DCF is the method institutional buyers and larger DSOs tend to run internally, even when the number they quote is expressed as a simple multiple.

The third method is comparable sales, pulling recent transaction data for practices of similar size, specialty, and geography from broker networks and transition consultants. Comparables anchor a valuation in what buyers are actually paying right now in a given market rather than a formula, though data quality is a real limitation since most dental sale prices are private and a broker’s comparables may not be as similar as advertised.

None of the three methods is definitive alone. A serious valuation triangulates all three, and a wide gap between them (a high collections-based number next to a low DCF value, say) usually signals that revenue and profitability have drifted apart, often from overhead creep, a weak fee schedule, or dependence on low-reimbursement insurance plans.

How is the purchase price divided between buyer and seller?

Once a price is agreed, IRC 1060 requires the price to be allocated across seven statutory asset classes, and both sides must report the same allocation on Form 8594. The classes run from Class I (cash) through Class VII (goodwill and going concern value): Class II covers actively traded securities, Class III covers receivables, Class IV covers inventory (supplies on hand at closing), Class V covers tangible business assets not described elsewhere (equipment, furniture, leasehold improvements), and Class VI covers Section 197 intangibles other than goodwill, which is where patient charts and a non-compete land. Patient charts rarely get their own dollar figure; their value is really a proxy for patient retention and is usually folded into goodwill, though HIPAA still requires patient notice before the charts themselves can transfer.

The allocation is not a formality. Every dollar assigned to equipment is depreciable over five to seven years, and every dollar to goodwill is amortizable over 15 years. The buyer generally prefers more value on equipment (faster deductions), but the number that actually matters to the seller is whether a dollar produces capital gain or ordinary income, not how fast the buyer recovers it. Equipment produces ordinary income up to prior depreciation taken, under the recapture rule in IRC 1245, with any excess over original cost taxed as capital gain. Supplies inventory is ordinary income. Goodwill and going concern value are long-term capital gain, assuming the practice has been held more than a year. Because a fully depreciated CBCT scanner or panoramic unit generates dollar-for-dollar recapture while goodwill generates capital gain, the seller’s after-tax proceeds depend heavily on how the price splits between the two, which is exactly why the allocation is negotiated, not simply calculated.

Why does personal goodwill matter for an S-corp owner?

Goodwill in a dental practice splits into two conceptually different pieces: enterprise goodwill, which belongs to the practice itself (its systems, its location, its brand, its assembled staff), and personal goodwill, which belongs to the individual dentist personally, tied to that dentist’s own patient relationships, clinical reputation, and referral network. In a typical solo or small-group practice, where patients associate the practice with a specific dentist rather than a brand, a meaningful share of total goodwill is personal rather than enterprise.

The distinction matters most for a practice still organized as a C-corporation. If the corporation sells all of its goodwill as a corporate asset, the gain is taxed once at the corporate level and again when the proceeds are distributed to the shareholder, the classic double-taxation problem C-corps carry into any asset sale. Personal goodwill, when the facts genuinely support it (patients follow the dentist rather than the practice, no existing non-compete binds the dentist to the corporation, and referral relationships are personal rather than institutional), can be sold directly by the dentist to the buyer, outside the corporate entity, and taxed once as capital gain. The IRS has challenged aggressive personal goodwill claims, but courts have consistently upheld the concept where the underlying facts are real, not manufactured for the transaction.

For a practice organized as an S-corp or a partnership, there is no double taxation to avoid, since income passes through to the owner regardless of how it is characterized. The distinction still matters there for a narrower reason: it affects how a multi-owner sale is allocated among the selling dentists, since a dentist who personally produces most of the goodwill may reasonably claim a larger share of the proceeds. For background on how S-corp status changes the underlying income picture for a dental owner, see dental practice entity structure.

How is a non-compete agreement taxed and valued?

A covenant not to compete, restricting the selling dentist from opening or working at a competing practice within a defined radius and time period, is close to universal in dental practice sales, and its tax treatment surprises people on both sides. For the seller, non-compete payments are ordinary income, not capital gain, because the dentist is being paid for refraining from future competition rather than disposing of a capital asset. This holds regardless of how the payment is labeled; the IRS looks to economic substance, not the label.

For the buyer, the non-compete is a Section 197 intangible amortized over 15 years under IRC 197, and here is the counterintuitive part: that 15-year period applies regardless of the covenant’s actual contractual length. A two-year non-compete and a ten-year non-compete are both amortized over the same fixed 15 years. A seller who wants more of the price allocated away from the non-compete (to reduce ordinary income) and a buyer who is indifferent to its length for amortization purposes can often find a number that works for both, provided the allocation still reflects a defensible value for the restriction imposed. Sellers should also check state-level enforceability limits; several states restrict or heavily scrutinize non-competes, including some that limit their use in healthcare specifically, and a covenant the buyer cannot actually enforce is not worth what a valid one is.

Should the deal be an asset sale or a sale of the entity?

This is the structural decision that shapes everything else, and buyers and sellers usually want opposite things.

In an asset sale, the buyer purchases the individual assets of the practice, equipment, supplies, charts, the lease, the name, and goodwill, rather than an ownership interest in the entity that holds them. The price is allocated under IRC 1060 as described above, and the buyer gets a full stepped-up basis in every asset, meaning fresh depreciation on equipment and a new 15-year amortization clock on goodwill. Liabilities generally stay with the seller’s entity unless specifically assumed, a meaningful protection for the buyer. The asset sale is the dominant structure in dental practice transitions for these reasons.

In a sale of the entity (a stock sale for a corporation, or a sale of membership interests for an LLC or PLLC taxed as a partnership), the buyer instead purchases the seller’s ownership interest directly. The seller reports a single, simple capital gains transaction, sale proceeds minus basis in the ownership interest, all at capital gains rates with no depreciation recapture calculation. But the buyer inherits the entity’s existing tax basis in its assets: no step-up, no new depreciation, no fresh amortization on goodwill, a real economic cost over the following 15 years. The buyer also inherits the entity’s history, including any unknown liabilities not uncovered in diligence, which is why entity sales usually carry more extensive representations, warranties, and often an indemnity escrow.

For a corporation (C-corp or S-corp) that would otherwise be sold as stock, a Section 338(h)(10) election under IRC 338 can bridge the gap: the buyer legally purchases the stock, keeping the entity intact for payer contracts and provider credentialing, but the transaction is treated for tax purposes as if the target sold all its assets and then liquidated, so the buyer gets the stepped-up basis it wants and the seller reports gain on the deemed asset sale. For an S-corp target the election just needs the corporation and its shareholders to join, no common parent required, which makes it more accessible for a typical dentist-owned S-corp than the statute’s corporate-group origins suggest. It is not available for an LLC or PLLC taxed as a partnership, since selling an interest in that kind of entity is already treated substantially like an asset sale under existing partnership principles.

For the parallel entity-structure question on the buy-in side of a practice, where an incoming partner purchases a stake rather than the whole practice, see dental associate compensation and buy-in.

What should a buyer check before signing?

A buyer’s due diligence needs to go beyond the financial statements the seller provides, since several of the biggest risks in a dental practice are operational and clinical rather than purely financial. The financial review should verify collections trends over the trailing three years, not just the most recent twelve months, since a single strong year can mask a longer decline, and check payer mix (a practice heavy in low-reimbursement PPO or Medicaid work carries different forward earning power than a fee-for-service practice at the identical collection total) and receivables aging, since anything past 90 days rarely collects at face value.

Beyond the numbers, confirm the remaining useful life of major equipment (a panoramic unit, a CBCT scanner, and an autoclave system all represent real near-term capital expense once past their service life), verify lease assignment and renewal rights, and independently confirm active patient counts rather than relying on the seller’s software reports. On the clinical side, check malpractice claims history, open state board complaints, OSHA compliance, and whether any associate has a non-compete that needs renegotiating after closing. For the equipment schedules a buyer inherits, see dental practice equipment deductions.

How can a seller reduce or defer the tax bill?

A seller’s after-tax result depends on two levers: how much of the price lands as capital gain versus ordinary income, and when the gain is recognized. On characterization, the seller’s incentive runs opposite the buyer’s on nearly every line item, more to goodwill (capital gain), less to equipment above depreciated basis, supplies, or a non-compete (all ordinary income). Because the buyer and seller must file matching Form 8594 allocations, this gets negotiated as part of the purchase agreement, not decided unilaterally after the fact, and a seller who does not push on it during negotiation typically ends up with whatever split the buyer’s advisors proposed first.

On timing, an installment sale under IRC 453 lets the seller recognize capital gain proportionally as payments arrive over the life of the note rather than all at once at closing, which can meaningfully reduce the marginal rate in any given year and defer the 3.8% net investment income tax on gain not yet recognized. The limitation: depreciation recapture under IRC 1245 is not eligible for installment treatment and must be reported in full in the year of sale regardless of how much cash has actually arrived. A seller financing a large part of the price needs cash on hand to cover the recapture bill in year one, even while most proceeds are still arriving over the following years.

What happens during the transition period?

The transition period is the bridge between the selling dentist and the buyer, and it is what makes the goodwill the buyer paid for actually stick. Without a smooth transition, patients leave, staff quits, and the buyer’s investment erodes. Both sides have strong incentives to get this right.

The selling dentist typically stays for 30 to 180 days (sometimes longer for larger or specialty practices with complex cases in progress), introducing the buyer to patients, staff, and referral sources, and continuing to treat patients on a reduced schedule while the buyer ramps up. The goal is for patients to develop a relationship with the buyer before the seller departs.

The compensation arrangement during the transition can go two ways. The seller can serve as an independent contractor, receiving a consulting fee reported on Form 1099-NEC (deductible to the buyer, self-employment income to the seller). Alternatively, the seller can be a W-2 employee of the buyer’s entity during the transition, which triggers payroll taxes for both sides but avoids self-employment tax for the seller. The choice depends on the length of the transition, whether the seller wants benefits during it, and how the parties want to handle the employment relationship.

Staff retention is a practical concern that does not show up on the Form 8594 but affects the economics of the deal. The buyer typically assumes no obligation to retain the seller’s employees (they are employees at will), but losing experienced hygienists, assistants, and front-desk staff during the transition can drive patients away. Many purchase agreements include a provision requiring the seller to encourage staff to stay, and some buyers offer retention bonuses to key staff members as an incentive.

What should I do next?

Start with the valuation and insist on seeing more than one method before accepting a number, whether buying or selling. Then move to the allocation conversation early, not after the purchase agreement is drafted, since the Form 8594 categories are genuinely opposed and far easier to negotiate before positions harden. If the practice is organized as a corporation, get the 338(h)(10) question on the table before the deal structure is finalized. And if any part of the goodwill is personal rather than enterprise, particularly relevant for C-corps, document the facts supporting that characterization before closing, not as an after-the-fact argument during an audit.

Related guides that cover the pieces that feed into a practice sale:

• Dental practice entity structure, how entity choice shapes an asset deal, a stock deal, or a 338(h)(10) hybrid
• Dental practice tax deductions, the depreciation schedules a buyer inherits and a seller recaptures
• Dental associate compensation and buy-in, the same goodwill mechanics applied to a partial buy-in rather than a full sale
• Dental practice retirement plans, what a seller nearing retirement can still shelter before closing

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.