Key Takeaways
- A dental practice valuation can be framed as Enterprise Value = Normalized Earnings × Applicable Multiple, using either SDE for doctor-to-doctor buyers or EBITDA for DSO buyers after adjusting owner compensation.
- Collections, not production, form the starting point. Real operating expenses are subtracted and documented add-backs are applied to arrive at normalized earnings that buyers will scrutinize.
- Doctor-to-doctor sales typically use 1.5–2× SDE or 60–85% of collections, while DSOs often apply 5–7× EBITDA, which can create valuation gaps of $1 million or more on the same practice.
- Every add-back should be documented, because unsupported adjustments are routinely challenged in quality-of-earnings reviews and can reduce the final purchase price.
- McLerran & Associates provides CPA-led, diligence-grade valuations that can hold up under buyer scrutiny and present side-by-side comparisons for both private-buyer and DSO paths.
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How Is a Dental Practice Valuation Calculated for a Sale?
The core formula many buyers and advisors use is: Enterprise Value = Normalized Earnings × Applicable Multiple. In doctor-to-doctor deals, an additional benchmark is a percentage of annual gross collections, usually expressed as a range tied to profitability and practice quality. These approaches can converge on a similar number. When they diverge widely, that gap can signal a profitability issue that the collections figure alone hides.
The calculation often follows five steps:
- Build normalized revenue from collections, not production.
- Subtract real operating expenses to arrive at reported profit.
- Apply add-backs such as owner compensation, personal expenses, and non-recurring items to produce Seller’s Discretionary Earnings (SDE).
- Select the earnings measure that fits the buyer type: SDE for a doctor-to-doctor buyer, or EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) after normalizing owner compensation to a market associate salary for a DSO or private equity buyer.
- Apply the applicable multiple or collections percentage, then compare the result with recent comparable transactions.
Step 1: Start from Collections and True Operating Expenses
The calculation starts with collections, which are the dollars that actually reach the bank after insurance write-offs and adjustments, rather than production, which is the dollar value of dentistry billed. Buyers cannot make loan payments with write-offs, so every common valuation method works from collections. A healthy practice typically collects 96% to 99% of adjusted production. A rate below 95% can signal billing-process gaps that a buyer may price into the offer.
From collections, real operating expenses are subtracted. These include staff and labor, dental supplies, laboratory fees, facility costs such as rent and utilities, marketing, and insurance. For a well-managed general dental practice, target overhead often runs roughly 55% to 65% of collections, with smaller practices tending toward the high end and larger practices often running leaner. Average dental practice overhead typically falls within 60% to 65% of total collections, and overhead above 70% can make buyers nervous.
Payer mix shapes these numbers. A practice with heavy PPO participation may bill $1.2 million but collect significantly less after contractual write-offs, and calculating overhead against billed production rather than collections inflates the profit picture. The American Dental Association’s practice valuation guidance and a paid annual benchmark report co-published by the Academy of Dental CPAs (ADCPA) and the National Society of Certified Healthcare Business Consultants (NSCHBC) are among the named sources valuation professionals use to frame typical overhead ranges by practice size and specialty.
Step 2: Build Normalized Earnings with Add-Backs
Buyers often skip this step when handing an owner a quick, free number. It is also the step that can determine whether the valuation holds up or gets re-traded in diligence. Normalized earnings are built by adding back every expense that exists only because of the current owner, then deducting the genuine cost a new owner would face. Each add-back should be documented, because a buyer’s quality-of-earnings team will scrutinize every line.
The four main add-back categories are:
- Owner compensation above a market associate salary. The owner-dentist’s full salary, draws, and benefits are added back. For a doctor-to-doctor deal, this produces SDE, which is the total cash available to a buyer who will work in the chair. For a DSO deal, a market associate replacement cost, typically around 30% to 35% of what the owner personally collects, is then subtracted to arrive at EBITDA. On a practice where the owner collects $800,000, that replacement deduction can be approximately $240,000 to $280,000, which directly and proportionally affects the enterprise value when a multiple is applied.
- Personal expenses run through the practice. Vehicles with personal use, family cell phone contracts, personal travel booked as continuing education, gym memberships, and above-market compensation paid to family members on the payroll are normalized out. Buyers typically request 36 months of credit card statements in a quality-of-earnings review, so undocumented personal expenses rarely survive diligence.
- Non-recurring items. A one-time legal settlement, a major equipment repair that will not recur, a pandemic-year anomaly, or a practice-management-system implementation cost can be added back across all 3 years of the normalized earnings bridge. Each add-back should be supported by financial records, because unsupported add-backs give buyers leverage to reprice after an LOI is signed.
- Below-market or above-market rent. If the owner charges the practice below-market rent through an affiliated real estate entity, EBITDA is adjusted upward to a market lease rate. If rent is above market, a downward adjustment applies. This adjustment can typically run $25,000 to $120,000 and is one of the more contested items in a quality-of-earnings review.
Because each add-back changes the earnings figure the buyer multiplies, an error or omission in this step directly and proportionally affects the transaction price. A $50,000 undocumented add-back at a 6× EBITDA multiple represents $300,000 of enterprise value left on the table.
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What Is the Difference Between SDE and EBITDA in a Dental Practice Sale?
Step 2 can produce two possible earnings figures, SDE and EBITDA, and the one a buyer uses can change the price. These measures are not interchangeable, and comparing a multiple of one to a multiple of the other without examining the earnings base underneath can be a costly error.
SDE adds the owner-dentist’s full compensation back in. It measures the total cash available to a buyer who will personally work in the practice and replace the seller’s clinical labor with their own. A doctor-to-doctor buyer often thinks in SDE because they are, in effect, buying a job plus a business.
EBITDA, as used by DSOs and private equity buyers, deducts a market-rate associate salary to replace the owner’s clinical production before the multiple is applied. The result is a smaller earnings base that can carry a materially higher multiple, because institutional buyers are pricing a business that can generate earnings independent of any one dentist.
The arithmetic of the bridge can clarify this. If a practice has $500,000 in SDE and the owner personally collects $800,000, a market associate replacement at 30% of that production costs approximately $240,000. Subtracting that from SDE yields approximately $260,000 in normalized EBITDA. Private dentist buyers typically pay around 1.5 to 2 times SDE, while DSOs commonly pay around 5 to 7 times adjusted EBITDA for a single-doctor practice. The gap between those two outcomes on the same practice can be substantial. For a deeper look at how these methods are applied, see McLerran & Associates’ overview of dental practice valuation methods explained.
What Is the Typical Rule of Thumb for Valuing a Dental Practice?
The percentage-of-collections benchmark is the most widely cited rule of thumb in doctor-to-doctor transactions. Dental practices can trade at roughly 60% to 85% of annual gross collections in 2026, with the position in that range shaped by specific, named factors rather than a fixed formula.
Several factors can move a practice toward the higher end of the range:
- Hygiene recall rates above 85% and a hygiene department producing roughly 25% to 33% of total collections.
- Fee-for-service or mixed payer mix with limited PPO discounting.
- Associate dentist coverage that reduces owner dependence.
- Modern digital technology such as digital radiography, CAD/CAM, and cone beam CT.
- A favorable lease with years remaining and renewal options.
- Steady or growing collections trend over 3 or more years.
Several factors can push a practice toward the lower end. These can include heavy owner dependence, such as the selling dentist producing 90% or more of clinical revenue, which can produce valuation reductions of 10% to 20%. Significant Medicaid or HMO volume, aging equipment, and a short remaining lease term can also weigh on the price.
A rule of thumb serves as a starting benchmark rather than a final price. A serious dental practice valuation triangulates the percentage-of-collections method against a discounted cash flow analysis and comparable sales. A wide gap between these approaches can signal that revenue and profitability have drifted apart. For current multiple ranges by practice size and buyer type, see McLerran & Associates’ 2026 dental practice sale multiples guide.
How Do You Value a Dental Practice for Sale? Two Worked Examples Side by Side
This section uses a single hypothetical practice to show how the same financial facts can produce different enterprise values depending on the buyer type. The assumptions below feed both paths, so the only variable that changes is the buyer profile. All figures are illustrative and are not a promise of any outcome for any specific practice.
Hypothetical Practice Assumptions:
- Annual collections: $1,500,000
- Reported overhead (staff, lab, supplies, rent, marketing, insurance): $975,000 (65% of collections)
- Reported net profit before owner compensation: $525,000
- Add-backs: $75,000 (owner’s automobile: $30,000; above-market family compensation: $15,000; personal travel: $12,000; non-recurring legal expenses: $8,000; other documented discretionary expenses: $10,000)
- Owner’s total compensation and benefits added back: $350,000
- SDE (reported net profit + owner compensation + add-backs): $950,000
- Market associate replacement cost (30% of owner’s $1,200,000 in personal collections): $360,000
- Normalized EBITDA (SDE minus market associate replacement): $590,000 (approximately 39% of collections, a high-margin practice used here for illustration)
Path A — Doctor-to-Doctor Sale: This path shows how a private buyer might price the same practice using SDE and collections.
- Method: Percentage of collections and SDE multiple.
- Collections benchmark: 65% to 80% of $1,500,000 = approximately $975,000 to $1,200,000.
- SDE multiple: approximately 1.5× to 2× SDE on $950,000 = approximately $1,425,000 to $1,900,000. The higher SDE here reflects a larger, more profitable practice, so the applicable multiple range and collections benchmark can converge.
- Reconciled estimate: approximately $1,100,000 to $1,300,000, depending on hygiene strength, payer mix, and owner dependence. Payment structure: typically 100% cash at closing.
- Transition period: typically 4 to 8 weeks.
Path B — DSO Affiliation: This path shows how a DSO or private equity buyer might price the same practice using EBITDA.
- Method: Multiple of normalized EBITDA.
- EBITDA multiple range for a single-location practice: approximately 5× to 7× for practices under $1 million of EBITDA.
- Applied to $590,000 normalized EBITDA: approximately $2,950,000 to $4,130,000 at the unadjusted range. Because the owner produces a significant share of collections, a buyer may apply a key-person discount of 1 to 2 turns, bringing the effective multiple to approximately 4× to 6×, or $2,360,000 to $3,540,000.
- Payment structure: approximately 60% to 75% cash at closing, with the remainder in rollover equity and earnouts. On this practice, that means roughly $1.4 million to $2.7 million in cash at closing, before taxes and transaction costs.
- Post-close employment: typically a 3- to 5-year working agreement. Up to approximately 40% of the deal can be paid in DSO equity rather than cash.
The gap between Path A and Path B on this hypothetical practice can be $1 million or more in enterprise value. The cash-at-closing comparison is the figure that often requires the most careful modeling, because DSO equity and earnouts carry their own risk and timeline. McLerran & Associates prepares multi-year, multi-structure financial forecasting so owners can compare estimated after-tax proceeds across both paths before deciding. For more on how these two paths compare structurally, see the firm’s guide on why dental practice valuation numbers differ.
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Doctor-to-Doctor Sale vs. DSO Valuation: Why the Same Practice Is Worth More to One Buyer
The gap between a doctor-to-doctor offer and a DSO offer on the same practice often comes from multiple arbitrage. That term describes a structural difference in how each buyer type prices earnings, rather than a difference in the practice itself. When a practice is folded into a larger group, its earnings are revalued at the group’s higher platform multiple. The value can rise from aggregation itself, before any operational change.
A doctor-to-doctor buyer usually finances the acquisition as an individual borrower, often through SBA 7(a) lending. The price must leave enough profit to cover the loan payment and pay the new owner a living wage, which structurally caps the multiple. A DSO or private equity buyer prices on EBITDA at institutional multiples because it is buying earnings that will be revalued at the platform’s scale. It can justify a higher price because centralized billing, HR, supply procurement, and compliance can add 200 to 400 basis points of margin per location with no clinical change.
Deal structure also differs in predictable ways. Doctor-to-doctor sales typically pay 100% cash at closing with a short 4- to 8-week transition. DSO deals commonly pay roughly 60% to 75% at closing, with the remainder in rollover equity and earnouts tied to post-close performance targets. The rollover equity, which can represent up to approximately 40% of the deal, means the selling dentist becomes an investor in the DSO, and that investment should be underwritten as carefully as any other. A post-close employment agreement of 3 to 5 years is standard. As the worked example showed, doctor-to-doctor deals pay all cash at closing on a short timeline, while DSO deals split the price into cash, rollover equity, and earnouts.
Why Do Two Valuations of the Same Practice Differ?
Two valuations of the same practice can diverge by hundreds of thousands of dollars, or more, based on four variables: add-back judgment calls, comparable selection, market timing, and buyer type.
Add-back judgment is often the most consequential. Whether a family member’s salary is normalized at market rate, whether a vehicle expense is fully or partially added back, and whether a one-time cost is genuinely non-recurring are all judgment calls that a buyer’s quality-of-earnings team will challenge. Research from SRS Acquiom shows that 85% of lower-middle-market deals see a post-LOI price adjustment, almost always downward, so the valuation that gets a deal signed can differ from the valuation that closes it.
A buyer-set, back-of-the-napkin number usually serves the buyer’s interests. It may omit add-backs, use a conservative multiple, or anchor to a collections percentage that ignores the practice’s actual profitability. When that number becomes the starting point for negotiation, the owner can concede ground they may never fully recover.
Those four variables are exactly where a seller can lose ground before the process starts. McLerran & Associates performs the calculation differently: every engagement is built on a CPA-led EBITDA analysis, with diligence-grade work done up front and every add-back unpacked and documented before the practice goes to market. Because the homework is done before buyers see the numbers, McLerran’s valuations can hold up under scrutiny and reduce the risk of re-trades. The firm works both the private-buyer and DSO paths in roughly equal measure, producing a true side-by-side valuation rather than a single buyer-set anchor. Do-it-yourself sellers, local generalist brokers, multi-vertical advisors, and free-valuation lead-generation firms all produce valuations that serve different interests. None of them perform the diligence-grade, CPA-led analysis that controls the narrative when a buyer’s quality-of-earnings team arrives. That difference shows up in outcomes: McLerran’s clients transact at roughly 85% to 90%, versus an industry norm closer to 35% to 40%. For a deeper look at why valuations diverge, see McLerran’s guide on dental practice valuation differences. To understand whether a free valuation is a useful starting point or a potential liability, see Is a Free Dental Practice Valuation Worth It? For a step-by-step guide to using a valuation calculator as a preliminary check, see the firm’s dental practice valuation calculator owner’s guide.
Frequently Asked Questions
What Is the Formula for a Dental Practice Valuation?
The article above describes a common framework as Enterprise Value = Normalized Earnings × Applicable Multiple. Normalized earnings are either SDE for doctor-to-doctor deals or EBITDA for DSO and private equity deals. The applicable multiple can vary by buyer type, practice size, profitability, specialty, and owner dependence. In many doctor-to-doctor transactions, a percentage-of-collections benchmark sits alongside the multiple as a cross-check.
What Counts as an Add-Back in a Dental Practice Valuation?
An add-back is any expense on the profit-and-loss statement that exists only because of the current owner and would not continue for a typical buyer. Common examples include owner compensation above a market associate replacement cost, personal expenses run through the practice, one-time non-recurring costs, and rent adjustments where the practice pays below- or above-market rent to an owner-affiliated landlord. As discussed earlier, each add-back should be documented so it can withstand a buyer’s quality-of-earnings review.
How Do SDE and EBITDA Compare for a Seller?
As covered above, SDE adds the owner’s compensation back and suits a working owner, while EBITDA deducts a market associate salary first and suits an institutional buyer. The practical takeaway is that the same practice can look smaller on EBITDA but carry a higher multiple, which is why comparing offers requires understanding which earnings base each buyer is using.
Is the Percentage-of-Collections Rule of Thumb Reliable?
The percentage-of-collections benchmark can be a useful starting point for doctor-to-doctor deals, yet it rarely functions as a complete valuation on its own. It treats every dollar of collections as equally valuable, even when overhead and risk profiles differ. Many advisors use it as a quick sense-check against an income-based valuation built from normalized earnings and comparable transactions.
Why Does a DSO’s Number Differ from a Private Buyer’s?
The difference usually reflects structure rather than arbitrary pricing. A doctor-to-doctor buyer finances the acquisition as an individual borrower and prices on SDE because they will personally replace the seller’s clinical labor. A DSO or private equity buyer prices on normalized EBITDA at institutional multiples because it is buying earnings that will be revalued at the platform’s scale, supported by centralized infrastructure. That multiple arbitrage can be a primary driver of the gap between the two offers on the same practice.
Conclusion: Get the Calculation Done Right Before a Buyer Sets the Anchor
A dental practice valuation for a sale is a calculation you control: collections to normalized earnings, add-backs applied and documented, SDE or EBITDA selected for the right buyer type, a multiple or collections percentage applied, and the result compared with relevant comparables. When a buyer sets that number first, the owner negotiates from a position they did not choose.
McLerran & Associates is a dental-specific, sell-side-only advisor whose CPA-led, diligence-grade valuation reflects that full calculation. Every add-back is unpacked, both the private-buyer and DSO paths are modeled in roughly equal measure, and a true side-by-side valuation is delivered before any buyer sees a number. With roughly 35 years in business and approximately 2,000 successful practice sales, the firm sells practices rather than listing them.
If you are still weighing whether to sell, a conversation can clarify the math before you commit to anything.
Get your calculation done before a buyer sets the anchor — talk to McLerran & Associates.
