In an asset sale, the buyer purchases a company's individual assets and takes on only the liabilities it expressly agrees to assume. In a stock sale, the buyer purchases the owners' shares and acquires the entire legal entity, liabilities included. Buyers usually push for asset deals because they receive a stepped-up tax basis in the assets and a screen against unknown liabilities. Sellers usually push for stock deals because the gain is taxed once, generally at long-term capital gains rates, and the company's obligations leave with it.
What each structure actually transfers
An asset sale transfers specific assets and specified liabilities from the selling entity to the buyer: equipment, inventory, customer contracts, intellectual property, and goodwill (the value of a business beyond its identifiable assets). The seller's legal entity survives the closing, settles whatever it kept, and typically distributes the net proceeds to its owners before winding down.
A stock sale, also called an equity sale (for an LLC, a membership interest sale), transfers ownership of the entity itself. Every asset, contract, permit, employee relationship, and liability stays inside the company. Only the shareholders change.
Most private-company deals can be papered either way. The choice is negotiated alongside price, and it moves real money, so it deserves the same attention as the headline number.
Tax consequences for the seller
C corporations: the double tax problem
A C corporation is a corporation taxed as a separate entity from its owners. When a C corporation sells its assets, the gain is taxed twice. First, the corporation pays federal income tax on the gain at the flat 21 percent corporate rate. Second, when the remaining cash is distributed to shareholders in liquidation, the shareholders pay tax again, generally at long-term capital gains rates that top out at 20 percent federally, plus the 3.8 percent net investment income tax for higher-income owners.
A round-number illustration. Suppose a C corporation sells its assets for $10 million and holds a $2 million tax basis in them. The corporate-level gain of $8 million produces roughly $1.68 million of federal corporate tax. The remaining $8.32 million is distributed to a shareholder whose stock basis is $500,000, creating a $7.82 million gain taxed at up to 23.8 percent, roughly another $1.86 million. Total federal tax: about $3.5 million before any state tax. Had that shareholder sold stock for the same $10 million, the single-level tax on the $9.5 million gain would have been about $2.26 million. Structure alone moved more than $1 million.
Pass-through sellers: one level of tax, but character matters
S corporations (corporations that pass income through to their shareholders) and entities taxed as partnerships, including most multi-member LLCs, generally avoid the entity-level tax, so an asset sale produces a single layer of tax at the owner level. The catch is the character of the gain. Amounts allocated to inventory or receivables can be taxed as ordinary income rather than capital gain, and gain attributable to depreciation previously claimed on equipment is recaptured as ordinary income under Section 1245. For a seller with heavily depreciated machinery, recapture can meaningfully raise the effective tax rate even in a pass-through.
Tax consequences for the buyer: the step-up in basis
In a taxable asset purchase, the buyer's tax basis in each acquired asset is reset, or stepped up, to the portion of the purchase price allocated to it. That basis converts into fresh depreciation and amortization deductions after closing. Purchased goodwill and most other acquired intangibles are generally amortized over 15 years for tax purposes, and tangible assets may qualify for accelerated depreciation. Those deductions shelter future income, which is why a buyer will often pay more for an asset deal.
In a stock purchase, the buyer inherits the target's existing, usually low, basis in its assets (a carryover basis) along with the old depreciation schedules. The buyer's purchase price sits in the stock itself, where it produces no deduction until the stock is eventually sold.
Purchase price allocation and Form 8594
In a taxable asset acquisition, buyer and seller must each report how the price was allocated by filing IRS Form 8594. The allocation follows the residual method under Section 1060: consideration is assigned across seven asset classes in a fixed order, and whatever remains after the identifiable assets lands in Class VII, goodwill and going concern value. Buyers generally want more allocated to fast-recovery assets; sellers want more in capital-gain classes. The split is negotiated and written into the purchase agreement, because the two filings are supposed to match.
Liabilities: what actually follows the deal
In a stock sale, every liability of the company, disclosed or not, remains inside the entity the buyer now owns. Pending litigation, tax exposure, warranty claims, and problems no one has found yet all come along.
In an asset sale, the traditional rule is that a buyer of assets does not become liable for the seller's obligations unless it expressly assumes them. That rule still holds as a starting point, but courts and statutes have carved out exceptions that have expanded dramatically over recent decades, making outcomes hard to predict from deal structure alone. Buyers therefore layer on due diligence, seller indemnification, escrows or holdbacks, and representations and warranties insurance rather than relying on the asset structure by itself.
Contracts, consents, and closing friction
An anti-assignment clause is a contract provision that bars one party from transferring the agreement without the other party's consent. These clauses drive a great deal of structuring. In an asset sale, each contract, lease, and license must be individually assigned to the buyer, and anti-assignment clauses mean the counterparty's written consent is often required. Chasing consents from landlords, key customers, franchisors, and lenders adds weeks to a closing timeline, and a counterparty asked for consent sometimes uses the moment to renegotiate its terms. Some permits and licenses cannot be assigned at all and must be reissued to the buyer.
In a stock sale, contracts stay with the entity and generally continue undisturbed unless a specific change-of-control clause (a provision triggered when ownership of the company changes hands) says otherwise. For a business built on a few critical contracts, this issue alone can decide the structure.
Why buyers want assets and sellers want stock
| Issue | Asset sale | Stock sale |
|---|---|---|
| Buyer's tax basis in assets | Stepped up to purchase price | Carries over from the target |
| Seller's federal tax if a C corporation | Two levels: corporate, then shareholder | One level, at capital gains rates |
| Unknown liabilities | Generally stay with the seller, subject to exceptions | Transfer with the entity |
| Contracts and permits | Must be assigned; consents often required | Generally stay in place absent change-of-control terms |
| Typically favored by | Buyers | Sellers |
In practice, structure gets priced. A buyer who insists on an asset deal may need to pay more to keep the seller's after-tax proceeds whole, and a seller who wins a stock deal may accept a somewhat lower headline number. The real negotiation is over after-tax dollars, not labels.
Section 338(h)(10) and 336(e): a stock deal taxed like an asset deal
Two elections let the parties keep the legal simplicity of a stock sale while obtaining asset-sale tax treatment.
A Section 338(h)(10) election is a joint election, made by buyer and seller together and filed with the IRS, that treats a qualifying stock purchase as a deemed sale of the target's assets for federal income tax purposes. It is generally available when the target is an S corporation or a subsidiary of a consolidated group and the buyer is a corporation acquiring at least 80 percent of the stock. Legally the deal remains a stock sale, so contracts and permits stay in place and no assets are retitled, yet the buyer receives the stepped-up basis. Because the deemed asset sale can raise the seller's tax bill relative to a straight stock sale, sellers commonly negotiate a gross-up: a purchase price increase sized to cover the incremental tax.
A Section 336(e) election reaches a similar deemed-asset-sale result for a qualified stock disposition, with one important difference: the buyer does not need to be a corporation. That opens the door for private equity funds and other buyers that acquire through partnerships or LLCs. Both elections turn on entity status, ownership history, and state tax treatment, so they should be modeled by tax advisors before a letter of intent is signed, not after.
What this means for a business owner
Two offers with the same headline number can differ by more than a million dollars in after-tax proceeds, as the C corporation example above shows. Owners get the best outcomes when they understand their entity type, asset basis, and likely purchase price allocation before buyers start proposing terms; sell-side platforms such as Bankerly.ai build this structure analysis into deal preparation for that reason. This article is general education, not legal or tax advice: choose a structure only with qualified M&A counsel and a tax advisor modeling your specific numbers.
Sources
- IRS: Instructions for Form 8594, Asset Acquisition Statement Under Section 1060
- IRS: Publication 542, Corporations
- IRS: Topic No. 409, Capital Gains and Losses
- RSM US: Key sell-side M&A tax considerations
- RSM US: Beware when liquidating following a section 336(e) transaction
- Shipman & Goodwin: Successor Liability in Asset Acquisition Transactions
Frequently asked questions
- Why do buyers prefer an asset sale over a stock sale?
- Two reasons: taxes and liabilities. An asset purchase gives the buyer a stepped-up tax basis equal to the allocated purchase price, which generates fresh depreciation and amortization deductions, including 15-year amortization of purchased goodwill. It also lets the buyer take only the liabilities it expressly assumes, leaving most unknown obligations behind with the selling entity, subject to successor liability exceptions.
- What is a step-up in basis in an asset sale?
- A step-up in basis means the buyer's tax basis in the acquired assets is reset to the purchase price allocated to them, rather than carrying over the seller's old, largely depreciated basis. The higher basis produces larger depreciation and amortization deductions after closing, reducing the buyer's taxable income for years. In a stock sale, by contrast, the target's asset basis carries over unchanged.
- Why does a C corporation get taxed twice in an asset sale?
- The corporation itself pays federal income tax on the gain from selling its assets at the flat 21 percent corporate rate. When the after-tax proceeds are then distributed to shareholders in liquidation, the shareholders pay a second tax, generally at capital gains rates. Pass-through sellers such as S corporations and most LLCs generally face only the single owner-level tax.
- What is a Section 338(h)(10) election in M&A?
- It is a joint tax election by buyer and seller that treats a qualifying stock purchase as a deemed asset sale for federal income tax purposes. The deal remains a stock sale legally, so contracts and permits stay in place, but the buyer receives a stepped-up asset basis. It generally requires a corporate buyer acquiring at least 80 percent of an S corporation or a consolidated-group subsidiary.
- Does an asset purchase protect the buyer from the seller's liabilities?
- Mostly, but not absolutely. The traditional rule is that an asset buyer takes on only the liabilities it expressly assumes. Courts and statutes recognize exceptions, though, and those exceptions have expanded over the decades, so structure alone is not a guarantee. Careful due diligence, seller indemnification, escrows, and representations and warranties insurance remain standard protections in asset deals.
Considering a sale in the next few years? See what a prepared process looks like.
Keep reading