Vet Practice Partner Buyout: Tax, Valuation, and Financing Guide

Two DVMs buy a practice together. A decade later, one wants out — retirement, disability, burnout, a corporate offer, a move across the country, or simply a different vision for the practice. The buyout that follows is often the largest financial transaction either doctor will face outside of the original acquisition. Handled well, it preserves the practice, fairly compensates the departing partner, and minimizes combined taxes. Handled poorly — with a vague operating agreement or a rushed deal structure — it drains the practice, creates a decade of tax regret, and sometimes ends in litigation.

This guide walks through the financial mechanics of a vet practice partner buyout: how the practice is valued, which transaction structure produces the most after-tax value, how to finance the payment, and what provisions in your operating agreement protect you whether you're the one leaving or the one staying.

Entity structure first: S-corp vs. partnership determines the mechanics

Most multi-DVM veterinary practices operate as S-corporations (often under a PLLC shell) because of the SE tax savings on distributions. A smaller number are taxed as partnerships. The entity type determines the buyout mechanics almost entirely.

S-corporation (the majority of vet co-owned practices): Each co-owner holds shares in the S-corp. A buyout is either a direct stock sale (departing DVM sells shares to the staying DVM) or a stock redemption (the S-corp buys back the departing DVM's shares using practice cash or borrowed funds). Tax treatment differs between these, which is covered below.

Partnership / PLLC taxed as partnership: IRC §736 governs buyouts when a partner's interest is redeemed by the partnership itself. Vet practices usually qualify as service partnerships (capital is not the material income-producing factor), which means payments for goodwill receive ordinary income treatment under §736(a) unless the operating agreement expressly carves out goodwill as a §736(b) capital payment.

Before you negotiate a single number, confirm your entity structure and verify which provisions your operating agreement contains. The wrong structure at closing can turn a capital gain into ordinary income — a 20+ percentage-point tax rate difference on proceeds that may be $500,000 or more.

Valuation: what the departing partner's equity is worth

A veterinary practice partner buyout is typically valued differently from a corporate acquisition. You're not paying 8–14× EBITDA — that's the premium a strategic corporate buyer pays for scale, synergies, and platform value. In an internal buyout, you're paying fair market value for the practice interest to a co-owner, not acquiring a platform asset.

EBITDA normalization matters here just as it does in a corporate sale: add back the departing partner's above-market compensation, personal vehicle expenses, family W-2 salaries if any, and non-recurring costs. Failing to normalize inflates the apparent expense base and understates EBITDA — which undervalues the practice and short-changes the departing partner.

Personal goodwill: A meaningful portion of a vet practice's goodwill may be personal — it belongs to you as a DVM (your client relationships, your reputation, your clinical skills) rather than to the entity. Under the personal goodwill doctrine, this can be treated as a capital asset of the individual DVM rather than the practice entity, which opens a separate capital gain for the departing partner that isn't subject to the entity-level tax considerations. This is worth exploring with a tax attorney before finalizing any asset-deal structure.

Three transaction structures and their tax treatment

Option 1: Direct stock sale (departing DVM → staying DVM)

The departing partner sells their shares in the S-corp directly to the remaining owner. This is the simplest structure.

For the seller: Proceeds minus stock basis = capital gain. If the practice has been profitable and retained earnings have been reinvested (increasing basis), the gain may be modest. If basis is low, the gain can be substantial. Long-term capital gain rates apply if shares were held more than one year — 0%, 15%, or 20% depending on taxable income, plus the 3.8% Net Investment Income Tax above $200,000 (single).¹

For the buyer: Takes a new cost basis equal to the purchase price, but gets no step-up in the underlying practice assets. Future depreciation deductions and asset basis on a subsequent sale will reflect original cost, not the buyout price.

Best for: Buyers who plan to hold the practice long-term (no asset step-up is less painful over 20 years than a 10-year horizon); situations where the seller has meaningful basis; clean deals where both parties want simplicity.

Option 2: S-corp stock redemption (the practice buys back shares)

The S-corp itself redeems the departing partner's shares using practice cash, a bank line of credit, or key-person life/disability insurance proceeds. The remaining DVM ends up owning 100% of the entity without writing a personal check.

For the seller: Same capital gain treatment as a direct stock sale — proceeds minus basis.

For the buyer/practice: The redemption does not create a deductible expense at the S-corp level. The practice uses after-tax dollars to fund the buyout — there is no deduction for redemption payments. The buying DVM's ownership percentage increases, but the underlying asset basis doesn't step up.

Cash flow consideration: If the practice borrows to fund the redemption, interest on that debt is deductible. The principal repayment is not. Practice distributions to service the debt will not be deductible either — plan the debt service into your cash flow model carefully before closing.

Option 3: Asset purchase (new entity buys practice assets)

The S-corp sells some or all of its operating assets to a new entity owned by the staying DVM. The departing partner receives their share of the asset-sale proceeds through the S-corp.

For the buyer: Gets a full step-up in asset basis at the purchase price. Future depreciation and amortization deductions are based on what was paid. Section 179 and bonus depreciation can be applied immediately to equipment. This is often the most tax-efficient outcome for the buyer in a short-to-medium holding period.

For the seller: More complex. Section 1060 governs the allocation of the purchase price across seven asset classes. Goodwill and going-concern value receive capital gain treatment. Equipment is subject to Section 1245 recapture — depreciation previously taken is recaptured as ordinary income (up to 37%) even if proceeds are labeled as capital.²

Negotiating the allocation: The buyer wants to allocate as much as possible to depreciable assets (immediate write-offs); the seller wants to push allocation toward goodwill (capital gain). Both parties must file Form 8594 with consistent allocations. A tax advisor who understands practice transactions should be in the room during allocation negotiations.

Financing the buyout

Internal vet practice buyouts are typically financed through one or more of these sources:

Seller-carried installment notes

When the departing DVM finances part of the deal via a promissory note, two tax rules apply. Under IRC §453, capital gain on a stock or asset sale can be recognized proportionally as payments are received — the seller doesn't pay tax on proceeds they haven't yet collected (called installment sale treatment).⁴ This is usually favorable when the seller expects to be in a lower bracket after practice exit.

However, §453 does not apply to §1245 recapture income — any equipment recapture must be recognized fully in the year of sale, even if the actual cash comes in over 10 years. Plan for that tax bill at closing in an asset-deal structure.

The note must carry interest at or above the IRS applicable federal rate (AFR) — a rate the IRS publishes monthly that varies by loan term. Below-AFR notes are assumed to carry imputed interest at the AFR, which is taxed as ordinary income to the seller rather than being deferred. Your tax advisor should pull the current AFR the month of closing.

Disability buyouts: a different playbook

Disability triggers are the most emotionally loaded and financially complicated buyout scenario. A partner becomes disabled — can no longer practice — but may contest the definition of disability, the valuation date, or the funding mechanism.

A well-structured buy-sell agreement addresses three things specifically for disability:

1. Definition of disability: Total and permanent? Any occupation or own occupation? How long must the disability persist before the buyout trigger fires? Align the buy-sell definition with the disability insurance policy definition.
2. Funding mechanism: Disability buyout insurance pays a lump sum at the trigger — typically 12–24 months after onset of disability (waiting period). Most policies pay 60–100% of the agreed practice value at trigger. Without funded insurance, the staying DVM is financing a multi-hundred-thousand-dollar buyout from practice cash flow while also absorbing the production loss from the disabled partner.
3. Income bridge: The disabled partner typically has an individual disability income policy that replaces 60% of their pre-disability income. The buyout insurance replaces the equity. Make sure both policies exist, both cover the same definition of disability, and neither has a gap period where neither policy pays.

Disability buyout insurance premiums are generally not tax-deductible, and proceeds are tax-free to the entity. The tax treatment of what the departing DVM receives then follows the stock vs. asset structure described above.

Operating agreement provisions that determine the outcome

The time to negotiate buyout terms is when the partnership is being formed — not when someone wants out. Six provisions matter most:

1. Valuation formula: Fixed-price formulas go stale fast; formula-based (e.g., 5× trailing 12-month EBITDA) stays current. Define whose calculation governs and what the dispute mechanism is.
2. Right of first refusal: If a partner wants to sell to an outside buyer (including a corporate group), do the remaining partners have the right to match? Specify the process, timeline, and whether a corporate offer counts as ROFR-triggerable.
3. Drag-along / tag-along clauses: If one partner sells to a corporate buyer, can they force the other to sell too (drag-along)? Can the minority partner elect to join any sale on the same terms (tag-along)?
4. Goodwill treatment in the buyout: For partnerships (§736): whether payments for goodwill are §736(a) (ordinary income to seller, deductible to partnership) or §736(b) (capital gain to seller, no deduction). This choice should be made at formation, not at separation.
5. Disability and death triggers: Define how disability is proven, what the valuation date is, how the transition period works (does the departing partner continue to draw a salary while the buyout closes?), and what happens to accounts receivable.
6. Non-compete scope and duration: A departing DVM starting a competing practice within two miles destroys goodwill value. Ensure the operating agreement's non-compete matches what was paid for and is enforceable under state law (CA, ND, OK ban non-competes; CO heavily restricts them).

The buyout process: five steps

1. Trigger confirmation: Identify which provision of the operating agreement is triggered and follow its process requirements — notice periods, dispute mechanisms, first-refusal timelines.
2. Valuation: Apply the operating agreement formula, or commission an independent appraisal if required or contested. Get the EBITDA normalization right before any number goes on paper.
3. Structure negotiation: Buyer and seller optimize for their respective tax positions. Consult tax advisors on both sides. Consider a §338(h)(10) election if both parties can agree.
4. Financing: Lock in bank financing, insurance proceeds, or installment note terms before the PSA is drafted. Know the cash flow model post-buyout.
5. Closing and transition: Execute the purchase agreement, update ownership records, notify lenders (SBA practice loans have change-of-control provisions), transition client communications, and revise key-person insurance coverage.

1. 2026 long-term capital gains rates: 0%, 15%, 20% (depending on taxable income) plus 3.8% Net Investment Income Tax above $200,000 single / $250,000 MFJ — IRS Topic 409: Capital Gains and Losses; Tax Foundation: 2026 Tax Brackets and Rates
2. Section 1245 depreciation recapture on asset sales: recapture recognized as ordinary income to the extent of prior depreciation deductions — IRS Publication 544: Sales and Other Dispositions of Assets
3. Applicable federal rates (AFR) for installment notes: IRS publishes monthly AFR tables under IRC §1274; below-AFR loans trigger imputed interest — IRS: Applicable Federal Rates
4. Installment sale rules under IRC §453: capital gain recognized proportionally as installment payments are received; §453(i) requires §1245 recapture income recognized in year of sale regardless of installment structure — IRS Publication 537: Installment Sales
5. §338(h)(10) election for S-corporations: treats a stock sale as an asset purchase for tax purposes when elected by all S-corp shareholders — IRC §338 — Cornell LII
6. IRC §736 governing partner buyouts in service partnerships: §736(b) payments for capital assets receive capital gain treatment; §736(a) payments for goodwill in service partnerships where no specific agreement governs goodwill receive ordinary income treatment — Rev. Rul. 93-13 (IRC §736 guidance)

Tax values verified against 2026 IRS rules as of May 2026. Transaction structures involve complex tax and legal considerations; consult a qualified CPA and business transaction attorney for advice specific to your situation. This content is for informational purposes only and does not constitute financial, tax, or legal advice.