Two buyers. Two identical businesses - same revenue, same EBITDA, same industry. One structured the deal as an asset purchase. The other as a stock purchase. Five years later, the asset buyer had recovered $340,000 more in tax benefits through depreciation and amortization. The stock buyer had inherited a $180,000 environmental claim the seller never disclosed.
Same business. Different structure. Wildly different outcomes.
The asset-vs-stock decision is made early in the deal - usually during LOI negotiations - but its consequences last for years. It determines how much tax you pay, what liabilities you inherit, how complex the closing process is, and what happens when problems surface after closing.
Here's how to choose the right structure for your deal.
Asset Purchase: What You're Actually Buying
In an asset purchase, the buyer doesn't buy the company. The buyer buys specific things FROM the company - equipment, inventory, intellectual property, customer contracts, goodwill. Everything else stays with the seller's entity, including liabilities the buyer doesn't want.
Think of it as going through a house and choosing which furniture to take. You pick the couch, the dining table, and the art. You leave behind the leaky pipes and the cracked foundation. The seller keeps the house - and its problems.
Advantages
- • Liability protection: Only assume liabilities you explicitly agree to
- • Stepped-up basis: Depreciate/amortize assets at current fair market value
- • Selectivity: Exclude problematic contracts, pending litigation, or unwanted assets
- • Clean start: Operate through a new entity without historical baggage
Disadvantages
- • Third-party consents: Every contract must be individually assigned
- • Complexity: Detailed asset and liability schedules required
- • Double taxation risk: C-corp sellers face corporate-level AND shareholder-level gain
- • Transfer mechanics: Titles, permits, and licenses must be re-issued
About 70% of small and middle-market acquisitions use asset purchase structures - primarily because buyers have more leverage in this size range and the liability protection is too valuable to give up. For the full buyer's perspective, read our complete asset purchase agreement guide.
Stock Purchase: Buying the Whole Entity
In a stock purchase, the buyer acquires the seller's ownership interest - stock (in a corporation) or membership interests (in an LLC). The entity itself doesn't change hands. What changes is who owns it.
This means everything transfers - every asset, every liability, every contract, every obligation. The good, the bad, and everything the seller forgot to mention.
Advantages
- • Simpler transfer: No individual asset assignments or consent requirements
- • Contracts stay in place: Existing agreements remain with the entity
- • Permits/licenses preserved: Government permits don't need re-issuance
- • Seller preference: Capital gains treatment, clean exit from all liabilities
Disadvantages
- • All liabilities transfer: Known AND unknown obligations become the buyer's problem
- • No stepped-up basis: Assets retain seller's old tax basis (lower depreciation)
- • Historical baggage: Tax audits, employment claims, environmental issues all follow
- • Minority shareholder issues: All shareholders must agree to sell
Side-by-Side Comparison
| Factor | Asset Purchase | Stock Purchase |
|---|---|---|
| What transfers | Only selected assets and assumed liabilities | Entire entity - all assets and all liabilities |
| Tax basis | Stepped-up to fair market value (buyer benefit) | Carries over from seller (no buyer benefit) |
| Liability exposure | Limited to assumed liabilities only | All liabilities - known and unknown |
| Seller tax treatment | Mixed (ordinary + capital gains); C-corp double tax risk | Capital gains treatment (seller preference) |
| Third-party consents | Required for most contracts and leases | Generally not required (entity continues) |
| Complexity | Higher - detailed schedules, individual transfers | Lower - entity ownership changes, everything else stays |
| Time to close | Longer (consent process, asset transfers) | Shorter (simpler mechanics) |
| Employee impact | Employees are technically terminated and rehired | Employment continues uninterrupted |
Equity Purchase Agreements: The LLC Middle Ground
LLCs blur the line between asset and stock purchases - and create opportunities that neither pure structure offers.
When buying an LLC, you're purchasing membership interests, not stock. But here's where it gets interesting: multi-member LLCs taxed as partnerships can use a Section 754 election to give the buyer a stepped-up basis in the underlying assets WITHOUT doing a formal asset sale. The buyer gets asset purchase tax treatment with stock purchase transfer simplicity.
For single-member LLCs (disregarded entities), a membership interest purchase is automatically treated as an asset purchase for tax purposes - there's no separate entity to "buy."
Section 338(h)(10) Election: Best of Both Worlds
For S-corporations, a Section 338(h)(10) election lets the parties treat a stock purchase as an asset purchase for tax purposes. The buyer gets the stepped-up basis. The transfer mechanics remain simple (stock changes hands). Both parties must jointly elect this treatment, and the seller recognizes gain as if all assets were sold - so the tax trade-offs need careful modeling.
This is often the negotiation breakthrough that resolves the asset-vs-stock impasse. The buyer gets their tax benefits. The seller gets simpler transfer mechanics. The accountants on both sides earn their fee.
When Each Structure Makes Sense
Choose Asset Purchase When:
You want clean liability separation. The business has significant depreciable assets. You're concerned about unknown liabilities, pending litigation, or environmental exposure. Most contracts are assignable. The seller is not a C-corporation (or the tax differential isn't significant enough to outweigh the liability protection).
Choose Stock Purchase When:
Key contracts, licenses, or permits cannot be assigned (healthcare, government, franchise). The business has numerous third-party relationships that would require costly consent processes. The seller insists on capital gains treatment and won't negotiate. The company's entity structure provides tax benefits that would be lost in an asset deal.
Consider a Hybrid When:
The deal is complex enough to warrant both. Some assets are best acquired directly (real estate, specific equipment) while the operating entity transfers via stock/membership interest. Hybrid structures add complexity but can optimize tax and liability outcomes for both parties.
For a deeper dive into how deal structure affects every section of the definitive agreement, see our complete business purchase agreement guide and our overview of M&A deal structures.
The Wrong Structure Can Cost You Hundreds of Thousands
Deal structure determines your tax position, liability exposure, and closing complexity for years after the deal closes.
Alex Lubyansky structures every deal to optimize YOUR outcome - not the other side's. 15+ years M&A experience. Personal attention.
Related Guides
Asset Purchase Agreement Guide
Every section of an APA from the buyer's perspective - purchased assets, assumed liabilities, and indemnification.
Pillar GuideBusiness Purchase Agreement Guide
The complete guide to purchase agreements - 12 critical sections, common mistakes, and the LOI-to-close timeline.
ResourceDeal Structure Guide
Framework for evaluating deal structures and optimizing tax and liability outcomes.