Asset vs Stock Purchase: Dental Practice Acquisition (2026 Tax + Risk Guide)

The single most consequential decision in any dental practice acquisition is not the purchase price — it is the deal structure. Choose the wrong one and a buyer can spend the next 15 years without a meaningful tax deduction on goodwill, or a seller can lose tens of thousands of dollars to ordinary-income tax on depreciation recapture that a stock sale would have avoided. This guide covers both structures side by side, including the dollar-level tax math on a $1M general practice sale, the IRS Form 8594 allocation rules, the Section 338(h)(10) election, and the three scenarios where a stock purchase is the smarter call. For deal context before the purchase agreement stage, see our guide to the dental practice letter of intent — the document that locks in the structure before attorneys draft the definitive contract.

Asset Purchase vs Stock Purchase: What’s the Difference?

In an asset purchase, the buyer identifies and acquires specific assets from the seller’s entity — equipment, supplies, patient records, trade name, goodwill, and contracts — while the seller’s LLC or corporation remains in existence. In a stock purchase, the buyer acquires the ownership interests (shares or membership units) of the seller’s entity itself, and with them, every asset, every contract, and every liability that entity has ever accumulated.

The key practical difference: in an asset deal, the buyer is starting a new legal entity that happens to own what was previously the practice. In a stock deal, the buyer is stepping into the seller’s legal shoes entirely. That distinction drives every tax, liability, and lender consideration covered in the rest of this guide.

Why ~95% of Dental Deals Are Asset Purchases

Asset purchases dominate dental transitions for four structural reasons, each of which makes the transaction safer, cheaper, or more bankable for the buyer.

• Clean liability cut. In an asset purchase, the seller’s entity retains all prior liabilities: malpractice claims, employment disputes, IRS matters, vendor disagreements, and PPO audit clawbacks for prior periods. The buyer’s new entity has no exposure to anything that happened before closing day. In a stock deal, those liabilities ride along — and some (like unfiled malpractice claims within the statute of limitations) may not surface for months or years after closing.
• Step-up in basis and 15-year goodwill amortization. In an asset purchase, the buyer allocates the full purchase price across asset classes at their fair-market value on closing day. Goodwill — typically 60–80% of a healthy general practice’s purchase price — is a Section 197 intangible, amortizable over 15 years on a straight-line basis. On a $1M practice with $720,000 of goodwill, that is approximately $48,000 per year in pre-tax deductions the buyer would not have in a stock deal. See our dental practice valuation guide for how goodwill is quantified during due diligence.
• Lender preference. SBA 7(a) lenders — the primary financing source for practice acquisitions under $5M — strongly prefer asset deals. Clean collateral (the assets themselves), no inherited liabilities, and a simpler lien position make underwriting more predictable. Stock purchases often face higher down-payment requirements, additional guarantor demands, or outright denial from lenders who are not comfortable with the unknown-liability exposure.
• Simpler regulatory paperwork. In an asset purchase, the buyer establishes new relationships with the state dental board (their own license), the DEA (new registration), Medicare and Medicaid (new provider numbers), and PPO networks (re-credentialing). That paperwork is work — but it is predictable work. In a stock purchase, the buyer inherits the entity’s regulatory history, which can include prior sanctions, billing audits, or pending provider-number reviews that no due diligence checklist catches completely.

The Tax Outcome: Side-by-Side on a $1M Sale

The dollar-level tax difference between an asset and stock purchase is the central reason ~95% of dental deals are structured as asset purchases — and also the reason sellers sometimes push back. Here is the math on a hypothetical $1M sale of an S-corp general practice, using 2026 federal tax rates (top ordinary income 37%, long-term capital gains 20%, NIIT 3.8%; verify with your dental CPA for state-specific rates).

The table makes the buyer’s incentive clear: the step-up in basis converts the entire purchase price into depreciable or amortizable cost, generating roughly $48,000/year in deductions against ordinary income. At a 37% combined federal marginal rate, that is approximately $17,760 per year in actual tax savings — or $266,000 over the full 15-year period. No step-up exists in a stock purchase, so the buyer simply carries the seller’s old basis until the entity is eventually liquidated or sold again.

From the seller’s perspective, the recapture penalty is the pain point. Any equipment the seller has previously depreciated down (common with dental chairs, X-ray units, and CBCT scanners) gets “recaptured” at ordinary income rates under Section 1245. On a practice with $120,000 of fully depreciated FF&E, that recapture can add $44,000–$60,000 in ordinary income tax — money the seller would not owe in a pure stock sale where the entire gain is taxed at capital-gains rates. This recapture surprise is one of the most common dental practice financial mistakes sellers make when they have not modeled the tax outcome before signing the LOI.

At the top federal rate differential — 37% ordinary vs 23.8% capital gains (20% + 3.8% NIIT) — the spread is approximately 13.2 percentage points. On $75,000 of recapture income, that is roughly $9,900 in additional tax the seller pays compared to a stock deal. Experienced transitions attorneys use this math as a negotiating tool: sellers who want an asset deal (for liability clarity) sometimes offer a modest purchase price bump to compensate the seller for the recapture burden.

IRS Form 8594: How to Allocate the Purchase Price

IRS Form 8594 (Asset Acquisition Statement Under Section 1060) is the document both buyer and seller file with their federal tax returns in the year of sale. Both parties must use the same allocation — agreed upon in the asset purchase agreement — across seven asset classes defined by the IRS. The allocation directly determines each party’s tax liability, which is why the Form 8594 breakdown is one of the most heavily negotiated provisions in any asset purchase agreement.

The IRS instructs both buyer and seller to complete Form 8594 and attach it to their federal income tax return for the year the sale occurs. If the agreed allocation changes after the original filing — because of an earnout payment or a post-closing working-capital adjustment — both parties must file a supplemental Form 8594 in the year of the change. Full instructions are at irs.gov/forms-pubs/about-form-8594.

In practice, buyers want more allocation in Class V (FF&E) and Class VI (non-compete, patient list) because those assets depreciate or amortize faster than pure goodwill. Sellers are generally indifferent between Class VI and Class VII since both produce capital gains, but they resist high allocations to Class V because that is where depreciation recapture lives. A dental CPA familiar with transitions — see JRCPA’s CPA guide for dentists for a benchmark — is essential to modeling the exact allocation trade-off before any number is put in the LOI. For the broader amortization rules governing Section 197 intangibles, see IRS Publication 535.

The Section 338(h)(10) Election: When a Stock Sale Acts Like an Asset Sale

The Section 338(h)(10) election is a provision that allows buyer and seller to jointly elect to treat a stock purchase as an asset purchase for federal income tax purposes — while keeping the legal entity intact. The election is available only for S-corporation targets (the most common entity type in dental practice sales) and requires both buyer and seller to make the election jointly on IRS Form 8023.

The practical effect: the buyer gets a full step-up in basis (and the associated amortization deductions) exactly as if they had purchased assets. The legal entity survives the transaction, so non-assignable contracts — PPO credentialing, specialty leases, Medicare/Medicaid provider agreements — continue automatically without the buyer needing to re-credential or re-negotiate. The seller is taxed as if the entity sold its assets rather than the shareholder selling stock, which typically means some ordinary income from recapture plus capital gains on the remainder — essentially the same tax position as a straight asset deal.

Why would a seller agree to a 338(h)(10) election if it costs them the stock-sale tax benefit? Usually because the buyer offers a higher purchase price to compensate — or because the entity’s non-assignable contracts are so valuable that a stock deal is the only way the transaction closes at all. The election is filed with no direct filing fee, but its tax consequences are large enough that both parties should model the outcome with their own CPAs before signing anything. Oberman Law’s overview of key legal considerations for acquiring a dental practice covers the election in the context of the broader deal structure analysis.

One important limitation: the 338(h)(10) election is not available for C-corporation targets. C-corps face the classic double-taxation problem in asset deals (the corporation pays tax on the asset sale gain, then the shareholder pays tax again on the liquidating distribution), which is a separate structural problem covered in advanced dental transition planning.

When a Stock Purchase Is Actually the Right Call (the 3 Scenarios)

A stock purchase is the right structure in roughly 5% of dental transitions — but in those cases, it is often the only structure that makes the deal work. Three scenarios reliably produce this outcome.

• A valuable non-assignable PPO contract. In fee-for-service practices, PPO credentialing is a formality. In high-volume Delta Premier or Blue Cross PPO practices where the contracted rate is 20–30% above the standard fee schedule, re-credentialing under a new entity can take 6–12 months and torch a corresponding share of production during the gap. If the buyer cannot afford to lose that revenue stream during re-credentialing, preserving the entity through a stock purchase (or 338(h)(10) election) is the financially rational call. NDP Transitions’ analysis of asset vs stock sale in dental transitions covers this scenario in detail.
• Specialty practices with Medicare or Medicaid provider-number dependencies. In oral surgery, pediatric, or prosthodontic practices where Medicare or Medicaid reimbursement constitutes a significant share of revenue, the provider-number portability question can become decisive. Some state programs treat entity continuity as preserving the provider’s enrollment status, while a new-entity application resets the enrollment timeline entirely. Buyers who do not verify transferability with the state Medicaid agency before closing can find themselves waiting 90–180 days for new enrollment approval. The state dental board does not control provider-number portability — the licensing and the billing enrollment are entirely separate processes.
• Multi-doctor entities with substantial associate-continuity penalty clauses. In group practices where associate employment agreements carry significant re-assignment penalties or require the entity (not just the practice location) to be the employer of record, a stock purchase preserves those contracts and avoids triggering restructuring costs that could run into hundreds of thousands of dollars in a larger group.

Liability: The Hidden Cost of a Stock Purchase

The liability exposure in a stock purchase is the reason most buyers and virtually all SBA lenders default to asset deals. When a buyer acquires the legal entity, they inherit every obligation that entity has ever incurred — including ones the seller may not know exist at closing.

Common categories of inherited liability in dental practice stock purchases include:

• Malpractice claims within the statute of limitations. A patient who received treatment 18 months before closing can file a malpractice claim against the entity up to the statutory deadline (which varies by state, commonly 2–3 years from discovery of harm). The buyer now owns the defendant entity.
• Employee claims. Wrongful-termination, harassment, or wage-and-hour claims from former staff members that have not yet been filed — or that are in early stages that did not surface in due diligence — transfer with the entity.
• IRS and state tax matters. Unfiled payroll tax returns, contested deductions, or prior-year audits in progress all belong to the entity the buyer just purchased.
• PPO audit clawbacks. Payers can audit up to 3–5 years of prior claims (depending on the contract). A high-volume practice with billing irregularities the seller did not disclose can generate six-figure clawback demands against the entity post-closing.
• Vendor and lease disputes. Equipment financing agreements, service contracts, and lease obligations with disputed terms or past-due payments carry over automatically.
• Environmental liability (rare but real). Older buildings with amalgam separator issues, dental waste disposal violations, or prior-period OSHA citations remain the entity’s problem.

These risks are partially mitigated through representations and warranties (the seller attests in the SPA that no undisclosed liabilities exist), an indemnification clause with a defined cap (typically 10–25% of purchase price), and an escrow holdback (5–15% of purchase price held for 12–18 months post-closing). However, “partially mitigated” is not the same as “eliminated” — and the representations and warranties are only as good as the seller’s ability to pay if a claim materializes. For the indemnification cap and holdback mechanics, see our guide to the dental practice letter of intent, where these terms are first set in writing.

How the Purchase Structure Affects the Lender (SBA 7(a))

SBA 7(a) lenders — the dominant financing source for dental acquisitions under $5M — treat asset deals and stock deals very differently. In an asset deal, the collateral is clear (the assets themselves), the lien position is clean, and the lender can model the practice’s revenue against a straightforward debt-service coverage calculation. In a stock deal, the lender is essentially lending against a legal entity with unknown liabilities, which creates underwriting complexity and risk exposure that most SBA lenders are not equipped to absorb.

The practical effect: buyers proposing a stock purchase to an SBA lender will typically face one or more of the following responses: a higher required down payment (10–30% vs the standard 10% for an asset deal), additional personal guarantor requirements, a requirement that the seller indemnify the lender directly for undisclosed liabilities, or outright denial from lenders who have a policy against stock-deal dental financing. Buyers relying on SBA financing should treat the structure question as a lender conversation, not just a tax conversation, before the LOI is signed. See our full guide to dental practice loans and financing for lender-by-lender comparison and SBA requirements. For SBA 7(a) program details, visit sba.gov directly.

Buyers planning a stock purchase should also check the ADA’s resources on dental practice purchase agreement law for guidance on representations and warranties provisions specific to the dental context.

Buyer Decision Checklist

Before committing to either structure in the LOI, a buyer’s CPA and transactions attorney should work through these questions. Unresolved answers on any item warrant additional due diligence before the LOI is signed.

• Does the practice have any non-assignable contracts that are material to revenue? Pull every contract and confirm with the counterparty whether consent to assignment is required and how long re-credentialing or re-negotiation takes.
• What is the lender’s position on a stock deal? Get a written pre-qualification that specifies the acceptable structure before spending money on legal fees for a stock deal the lender will reject.
• What is the value of the 15-year amortization deduction in an asset deal? Model the present value of ~$48,000/year in goodwill deductions against your projected marginal rate — this is a real dollar benefit that should factor into your maximum offer price calculation.
• What liabilities are visible in the due diligence record? Review three years of tax returns, payroll records, PPO contract terms, and any pending or threatened litigation disclosures. In a stock deal, undisclosed liabilities become yours regardless of what the seller attested.
• Is the seller an S-corp, C-corp, or LLC? The entity type determines whether a Section 338(h)(10) election is available as a middle path (S-corp only) and whether double-taxation exposure exists (C-corp asset deals).
• What is the practice’s overhead rate? High-overhead practices often have older or partially depreciated equipment, which increases the recapture burden on the seller in an asset deal and creates a negotiating opportunity for the buyer. See our dental practice overhead benchmarks for context on what “normal” looks like by specialty.
• Has the seller modeled their after-tax net proceeds under both structures? A seller who sees a $75,000 recapture hit in an asset deal may accept a $50,000–$60,000 price reduction in exchange for a stock deal — a trade-off that costs the buyer much less than the value of the amortization they would give up.
• Will the definitive agreement include a purchase price allocation schedule? The Form 8594 allocation must be agreed in the asset purchase agreement. Leaving it unresolved until post-closing creates IRS inconsistency risk for both parties. Forward this to your attorney when reviewing the dental practice purchase agreement.

Seller Decision Checklist

Sellers have structurally different interests than buyers on every point in the table above. These questions belong on the seller’s agenda before the LOI term sheet is presented.

• What is your depreciation recapture exposure in an asset deal? Pull your current-year depreciation schedule with your CPA and calculate the ordinary-income exposure. If you have heavily depreciated equipment (chairs, digital X-ray, CBCT), the recapture number can be material and should inform your minimum acceptable purchase price.
• Does your entity hold any non-assignable contracts that a buyer would value? If yes, that is a negotiating asset — a buyer who needs those contracts to close will pay for a stock deal or 338(h)(10) election.
• How does your net after-tax proceed differ between an asset sale and a stock sale? At the top federal rate differential (~13.2 percentage points), a $75,000 recapture item costs the seller roughly $9,900 more in an asset deal vs a stock deal. That is a number, not a deal-breaker — but it should be part of the negotiation.
• Are you prepared to offer a Section 338(h)(10) election as a negotiating chip? If you are an S-corp seller and the buyer wants a step-up, offering a 338(h)(10) election in exchange for a purchase price increase can bridge the structure gap. Model the numbers before making the offer.
• Does your purchase price include an earnout? Earnout payments are typically taxed as ordinary income rather than capital gains regardless of structure — confirm this with your dental CPA before finalizing any earnout terms in the LOI.
• Have you disclosed all known liabilities, disputes, and regulatory matters in writing? In an asset deal, the risk returns to you regardless — but in a stock deal, undisclosed liabilities that surface post-closing expose you to indemnification claims that can exceed the holdback amount.
• What is your transition period and training obligation? The payment you receive for a post-closing transition service agreement (typically $5,000–$20,000/month for 60–90 days) is ordinary income regardless of structure. Separate it from the purchase price allocation in the APA.

Frequently Asked Questions

What’s the most common deal structure for a dental practice sale?

Asset purchases account for approximately 95% of dental practice sales in the United States. The asset purchase structure gives buyers a clean liability cut, a step-up in tax basis with 15-year amortization on goodwill, and easier SBA financing. Stock purchases are used in a small minority of transactions where a non-assignable contract, provider-number dependency, or associate-continuity obligation makes preserving the legal entity financially necessary.

Why do buyers prefer an asset purchase?

Buyers prefer asset purchases for three reasons: liability protection (the seller’s entity retains all prior liabilities), tax basis (the buyer allocates the full purchase price across assets and amortizes goodwill over 15 years under Section 197), and lender access (SBA 7(a) lenders underwrite asset deals more readily and at lower down-payment requirements than stock deals). The amortization benefit alone — roughly $48,000/year on a $1M goodwill allocation — represents approximately $17,000–$18,000 per year in actual tax savings at the top federal rate.

Why do sellers sometimes prefer a stock purchase?

Sellers prefer stock purchases primarily because the entire gain is taxed at long-term capital gains rates (20% federal plus 3.8% NIIT at the top bracket) rather than the mixed capital-gains-plus-ordinary-income treatment of an asset deal. In an asset sale, depreciated equipment and other Class V assets trigger Section 1245 depreciation recapture at ordinary income rates up to 37%, which can add $9,000–$45,000 in additional federal tax depending on the depreciation schedule. Sellers also prefer stock deals when the entity holds a non-assignable contract that would be difficult or time-consuming to transfer under an asset structure.

Does an asset purchase or stock purchase result in lower taxes for the seller?

A stock purchase almost always produces lower taxes for the seller, assuming the entity is an S-corp and the seller has a meaningful depreciation recapture exposure. The entire gain in a stock sale is taxed at long-term capital gains rates (for shares held over one year), while an asset sale splits the gain between ordinary income (recapture on depreciated assets) and capital gains (goodwill, intangibles). The dollar difference depends on how much depreciation the seller has taken on FF&E and leasehold improvements — a key question to model with a dental CPA before the LOI is signed.

What is depreciation recapture in a dental practice sale?

Depreciation recapture is the IRS’s mechanism for collecting ordinary income tax on the tax benefit a seller received from depreciating assets during ownership. Under Section 1245, when a seller disposes of personal property (dental chairs, digital X-ray units, CBCT scanners, computers) that has been depreciated below its original cost, the depreciation “recapture” portion — the difference between the allocated sale price and the asset’s current tax basis — is taxed as ordinary income rather than capital gains. At the top federal bracket (37% in 2026), recapture on $80,000 of fully depreciated equipment generates approximately $29,600 in ordinary income tax that would not exist in a stock sale. This is one of the most common unexpected costs sellers face when they have not modeled the deal before signing.

What is IRS Form 8594 and who files it?

IRS Form 8594 (Asset Acquisition Statement Under Section 1060) is filed by both the buyer and the seller when a business’s assets are sold or purchased as a group. Both parties must attach it to their federal income tax returns for the year of the sale, and both must use the same agreed-upon allocation across the IRS’s seven asset classes (Class I through Class VII). Inconsistent allocations between buyer and seller trigger IRS scrutiny. If post-closing adjustments (such as earnout payments or working-capital true-ups) change the total purchase price, both parties file a supplemental Form 8594 in the year the change occurs.

Can a stock sale of a dental practice be taxed like an asset sale?

Yes — through a Section 338(h)(10) election, jointly filed by buyer and seller on IRS Form 8023. The election is available only when the target practice is organized as an S-corporation. It treats the stock purchase as an asset purchase for federal tax purposes, giving the buyer a full step-up in basis and 15-year goodwill amortization, while keeping the legal entity intact so that non-assignable contracts continue automatically. The seller is taxed as if the entity sold its assets, which typically means some ordinary income from recapture plus capital gains — essentially the same tax position as a straight asset sale. Buyers willing to compensate the seller for the recapture cost sometimes use the 338(h)(10) election to resolve deals where the entity’s non-assignable contracts are the sticking point.

Does the dental license transfer with the practice?

No. A dental license is personal to the licensed dentist and is not transferable to another individual or entity in any state. This is true in both asset purchases and stock purchases — even though the buyer acquires the legal entity in a stock deal, the buyer still needs their own state dental license to practice. The entity’s prior license history (including any sanctions or probation periods) does remain with the entity in a stock deal, which is a separate due diligence item. Buyers should verify the license status of the selling entity with the state dental board independently before closing in any stock transaction.

Do PPO contracts carry over in an asset purchase?

Generally no — at least not automatically. PPO contracts are between the payer and the specific legal entity (or individual provider). In an asset purchase, the buyer’s new entity must apply for its own PPO credentialing. For most standard PPO networks, re-credentialing takes 30–90 days. For specialty credentialing or legacy contract tiers (Delta Premier, for example), re-credentialing can take longer and may result in reduced contracted rates under the new entity. This is the primary reason a stock purchase (or 338(h)(10) election) is sometimes preferred in high-volume PPO-dependent practices where a 3–6 month fee-schedule gap would materially reduce practice value during the transition.

Should the buyer or seller propose the deal structure?

In most dental transactions, the buyer’s attorney or CPA proposes the deal structure in the initial LOI term sheet — and since asset purchases are the default, the initial proposal is almost always an asset deal. Sellers who want a stock deal (or a 338(h)(10) election) should raise the topic before the LOI is drafted, not after, because changing the structure post-LOI requires amended legal documents, lender re-underwriting, and additional CPA modeling. Experienced transitions attorneys on both sides treat the structure question as the first item on the LOI agenda precisely because every other term — price, allocation, holdback, indemnification — is calculated differently depending on which structure is chosen.

About the author

Sajid Ahamed is a dental practice-management content strategist with 7+ years of experience marketing for dental practices. He writes DPI’s practice-finance and transitions guides, turning deal mechanics and financial benchmarks into decisions practice owners can act on. Connect on LinkedIn.

Sajid Ahamed

Dental Marketing Expert · 7+ Years in Healthcare

Sajid Ahamed is a Practice Management Content Strategist with 7+ years in dental marketing and healthcare strategy. He works with dental practice coaches, DSO advisors, and independent practice owners across the United States, covering practice growth, overhead optimization, insurance strategy, staff compensation, financial planning, and patient acquisition. His editorial work draws on primary sources including ADA Health Policy Institute data, Bureau of Labor Statistics reports, CMS guidelines, and peer-reviewed dental journals. Sajid's content has been cited by AI systems including ChatGPT and Google Gemini for dental practice overhead benchmarks and staffing data.