The choice between a share sale and an asset sale decides who inherits the seller’s debts, how much tax each side pays, whether employees keep their jobs automatically, and how much paperwork closing takes. In a share sale, the buyer purchases equity directly from the shareholders and the business entity continues unchanged, carrying every asset and every liability with it. In an asset sale, the buyer picks specific property, contracts, and intellectual property to acquire, and the seller’s entity keeps whatever is left behind. Neither structure is universally better. Buyers usually want an asset sale; sellers of C corporations usually want a share sale; the deal gets negotiated from there.
What Each Structure Actually Transfers
In a share sale, ownership of the entity changes hands, but the entity itself does not. The company keeps its legal identity, tax identification number, permits, bank accounts, and operational history. From the outside, nothing looks different the day after closing. That continuity is the main attraction. Vendor and customer contracts generally stay in force, licenses remain active, and the corporate veil keeps protecting the owners from personal liability for company obligations.
The tradeoff is that the buyer inherits everything. Every pending lawsuit, undisclosed tax liability, and environmental cleanup obligation travels with the entity, because the entity carrying those problems is exactly what the buyer bought. There is no mechanism to leave unwanted baggage behind.
An asset sale works the opposite way. The buyer purchases specific items the parties negotiate over: equipment, inventory, customer lists, intellectual property, real estate, or some combination. The seller’s entity continues to exist afterward, still holding whatever was excluded from the deal, along with any remaining cash, receivables, and unassumed debts. Buyers tend to favor this structure because it produces a cleaner starting point and, as covered below, usually delivers meaningful tax benefits.
Who Inherits the Liabilities
Liability is where the two structures diverge most sharply. A share buyer steps into every obligation of the entity automatically. An asset buyer, under traditional corporate law, does not assume the seller’s debts unless one of four exceptions applies: the buyer explicitly agreed to assume them, the transaction amounts to a de facto merger, the buyer is essentially a continuation of the seller, or the deal was structured to defraud creditors. Some courts have added a fifth exception, holding buyers liable when they substantially continue the seller’s business operations, retain the same employees and facilities, and hold themselves out as the same company.
Environmental exposure deserves particular attention. Under the federal Comprehensive Environmental Response, Compensation, and Liability Act, courts routinely impose cleanup costs on successor companies that acquired contaminated properties through asset purchases, even when the purchase agreement disclaimed those liabilities. A clause stating “buyer does not assume environmental liabilities” may not protect you if a court decides the continuity-of-enterprise factors point the other way. Thorough environmental due diligence before closing matters far more than contractual disclaimers after it.
What Happens to Contracts
Because the entity does not change in a share sale, its contracts generally continue on their existing terms. The catch is that many commercial contracts include change-of-control provisions triggered by a shift in ownership. A lender might accelerate a loan. A key supplier might gain a right to terminate. A landlord might demand renegotiation. Identifying these clauses before signing is essential; missing one can produce defaults or lost relationships on day one.
In an asset sale, contractual rights transfer to the buyer through formal assignment, and the counterparty’s consent is often required. Liabilities stay with the selling entity unless the purchase agreement specifically shifts them. Creditors of the seller look to whatever assets remain in the corporate shell rather than chasing the sold assets. That gives asset buyers real insulation from the seller’s history, but it requires more transactional work to move each contract across individually.
Tax Consequences on Each Side
Tax treatment is usually the single biggest factor pushing buyers toward asset sales and sellers toward share sales. Neither party should agree to a structure without modeling the tax outcome first.
Why Buyers Prefer Asset Sales
In an asset sale, the buyer takes a cost basis in each acquired asset equal to the portion of the purchase price allocated to that asset. The allocation must follow the residual method prescribed by the IRS, with any excess above the fair market value of tangible assets typically flowing to goodwill and other intangibles.1Office of the Law Revision Counsel. 26 U.S. Code 1060 – Special Allocation Rules for Certain Asset Acquisitions Buyer and seller must agree on the allocation in writing, and the IRS will hold both to it.
The practical benefit is clear. A buyer who pays $5 million for assets can depreciate or amortize that full amount over each asset category’s useful life. Goodwill and most intangibles amortize over 15 years. Equipment depreciates on accelerated schedules. Those deductions cut taxable income for years after closing. In a share sale, the buyer instead inherits the entity’s existing tax basis, which may be far lower than the purchase price. The premium gets paid, but no additional depreciation comes with it.
Why Sellers Prefer Share Sales
For sellers operating through a C corporation, an asset sale triggers two layers of tax. The corporation pays tax on the gain from selling its assets at the corporate rate, currently 21%. Then, when the after-tax proceeds are distributed to shareholders as a liquidating distribution, shareholders pay capital gains tax on any amount above their stock basis. The combined effective rate can approach 40% or higher depending on the shareholder’s bracket and state taxes.
A share sale avoids that stack. Shareholders sell their stock directly and the gain is taxed once at capital gains rates. For sellers of S corporations, partnerships, and LLCs taxed as partnerships, the double-taxation problem does not exist because those entities are pass-throughs. Even so, the allocation of purchase price among asset classes can shift the character of gain between ordinary income and capital gain, which changes the effective rate.
Bridging the Gap With a Section 338(h)(10) Election
When buyer and seller cannot agree on structure, a Section 338(h)(10) election sometimes bridges the divide. This joint election treats a stock purchase as a deemed asset sale for tax purposes. The buyer gets the stepped-up basis it wants; the seller reports the transaction as if the corporation sold its assets and liquidated. The election is available only in specific situations: the buyer must acquire at least 80% of the target’s voting power and value, and the target must be either a subsidiary of a consolidated group or an S corporation. If the target is an S corporation, every shareholder, including those not selling, must consent.
Employees
How employees transfer depends entirely on structure, and getting it wrong creates real legal exposure.
In a share sale, employees stay employed by the same entity. Their employer has not changed, only the people who own it. Employment agreements, benefit plans, and accrued obligations like vacation time carry forward.
An asset sale is different. Employees do not transfer automatically. The buyer must offer employment to the workers it wants to keep, and each employee must accept. Those who accept become new hires of the buyer, which sets fresh terms for compensation, benefits, and employment conditions.
The rehiring process triggers specific federal compliance duties. For employment eligibility verification, the buyer picks one of two paths: treat retained workers as new hires and complete a fresh Form I-9 for each, or treat them as continuing employees and take responsibility for the seller’s existing I-9 forms, including any errors those forms carry.2U.S. Citizenship and Immigration Services. Mergers and Acquisitions If completing new forms, each employee must finish Section 1 no later than their first day, and the buyer must complete Section 2 within three business days.
Both structures can trigger federal WARN Act obligations when the transition produces plant closings or mass layoffs. The seller handles required notices for qualifying events up to and including the sale date; the buyer takes over for events after closing.3U.S. Department of Labor. WARN Advisor – What Am I Responsible for if I Sell My Business When employees continue working through the transition without interruption, the technical change in employer does not count as an employment loss under the Act.
Regulatory Filings That Can Gate the Deal
Deals above certain size thresholds need government clearance before closing, whether structured as a share sale or an asset sale.
Hart-Scott-Rodino Antitrust Filing
The Hart-Scott-Rodino Act requires both parties to file a premerger notification with the Federal Trade Commission and the Department of Justice and observe a waiting period before closing any transaction that exceeds the applicable size thresholds. As of February 2026, the minimum reporting threshold is $133.9 million in transaction value, with a lower $26.8 million threshold that applies when the parties themselves exceed certain size tests.4Federal Trade Commission. New HSR Thresholds and Filing Fees for 2026 Filing fees scale with deal size, starting at $35,000 for transactions below $189.6 million and reaching $2,460,000 for transactions of $5.869 billion or more. The threshold in effect at closing determines whether filing is required, but the fee is set by the threshold in effect when the waiting period begins.
Foreign Investment Review
When a foreign buyer is involved, the Committee on Foreign Investment in the United States may have jurisdiction. CFIUS reviews acquisitions that could give a foreign party control of a U.S. business, as well as non-controlling investments that provide certain access or involvement in businesses tied to critical technologies, critical infrastructure, or sensitive personal data.5U.S. Department of the Treasury. CFIUS Laws and Guidance Certain transactions involving critical technologies now require a mandatory filing. CFIUS can block or unwind completed deals, so cross-border parties should assess filing obligations early.
Bulk Sales Notice
One filing applies only to asset sales. In certain jurisdictions, an asset sale may trigger bulk sales notice requirements under Article 6 of the Uniform Commercial Code.6Legal Information Institute. Repealer of UCC Article 6 – Bulk Transfers and Revised UCC Article 6 – Bulk Sales These rules were designed to stop an owner from selling off inventory in bulk, pocketing the proceeds, and disappearing before creditors could collect. Most states have repealed Article 6 entirely, but a handful still require advance notice to the seller’s creditors before a bulk transfer closes. Failing to comply where required can give the seller’s creditors a direct claim against the purchased assets.
How to Decide
The right structure depends on the specific deal. Buyers almost always start by preferring an asset sale for the liability protection and tax basis step-up. Sellers of C corporations almost always prefer a share sale to avoid double taxation. Pass-through sellers care less about the entity-level tax but still watch how the purchase price allocation affects the character of their gain. The negotiation usually comes down to which side has more leverage and whether a price adjustment or a Section 338(h)(10) election can close the gap.
Structure is not a formality. It drives the tax bill, the risk allocation, the regulatory requirements, and the complexity of closing. Getting it right at the letter-of-intent stage saves both sides from expensive course corrections later.