Asset sale vs stock sale: tax, liabilities and your data

What is an asset sale?

Before you agree what goes into the sale, check what the company's records are worth on their own. AI developers now pay for operational records such as tickets, work orders, email and chat archives and code (public deals). A free valuation takes six questions about the business and no files.

An asset sale is a sale of some or all of a business's assets rather than of the company itself. The contract is an asset purchase agreement, under which a seller transfers to a buyer a portion or all of the assets of an entity (Cornell LII). For tax, the sale of a business is usually not a sale of one asset: each asset is treated as sold separately to work out the gain or loss (IRS Publication 544).

The alternative is a stock sale, also called an equity or share sale, in which the owners sell their shares and the company changes hands with all its assets and liabilities. The SBA notes that the sales agreement can provide for the purchase of either the assets or the stock of a corporation.

Source: Cornell LII Wex: asset purchase agreement

Asset sale vs stock sale: the main differences

The choice changes who keeps the liabilities, how each side is taxed and which consents you need:

Source: ABA Business Law Today: successor liability in distressed asset purchases (Mar 2026)

Asset sale taxes: Form 8594 and the seven asset classes

Buyer and seller must allocate the price by the residual method, class by class, to fix the buyer's basis in each asset and the seller's gain or loss on each. No asset other than goodwill and going concern value may be allocated more than its fair market value (Form 8594 instructions); whatever remains goes to Class VII.

• Agree the allocation in writing. A written agreement on the allocation, or on the value of any asset, binds both parties unless the IRS finds the amounts are not appropriate (Publication 544).
• Attach Form 8594 to the return for the year of the sale. If an allocation later goes up or down, whoever is affected files an amended Form 8594 (Form 8594 instructions). A seller also reports each sale of business property on Form 4797 (IRS).
• Records have their own line. Business books and records and other information bases are Class VI intangibles, so if the records go with the business, part of the price is allocated to them (Form 8594 instructions).
• S corporations: the purchasing corporation and the target's shareholders can jointly make a section 338(h)(10) election, under which the target is treated as selling its assets; for an S corporation target, Form 8883 is attached to Form 1120-S (Form 8883 instructions).

Source: IRS: Instructions for Form 8594, asset acquisition statement

What does an asset purchase agreement include?

An asset purchase agreement varies with the deal but commonly has the sections below (Cornell LII). The SBA adds that an attorney should review it, that it should list all inventory in the sale, and that leaving out any assets or liabilities can cause problems even after the sale is final.

Source: Cornell LII Wex: asset purchase agreement

Liabilities, contracts and consents in an asset sale

The general rule is that a buyer of assets can leave unassumed liabilities with the seller. A buyer can still become responsible for them if it expressly or impliedly assumes them, if the deal is a de facto merger or consolidation, if the buyer is a mere continuation of the seller, or if the deal is a fraudulent effort to avoid the seller's liabilities (ABA Business Law Today). States differ: Texas has eliminated the mere continuation and de facto merger theories, while in a recent New York case an appellate court let a landlord's claim against asset buyers proceed to trial on the mere continuation theory.

• Bulk sales: in California, the buyer in a covered bulk sale must get a list of every business name and address the seller used in the previous three years and give notice of the sale (Cal. Com. Code 6104).
• Sales tax: in California, the buyer of a business or stock of goods must withhold enough of the price to cover the seller's unpaid sales tax until the seller produces a receipt or a certificate that nothing is due (Cal. Rev. & Tax. Code 6811). A buyer who fails to withhold becomes personally liable up to the purchase price, and the tax board has 60 days after the latest of the request, the sale or the records being made available to issue the certificate or say what must be paid (Cal. Rev. & Tax. Code 6812).
• Government contracts: the government may recognize the buyer as successor when it takes all the contractor's assets, or all those used to perform the contract (FAR 42.1204).
• Owner approval: in Delaware, selling all or substantially all assets needs a resolution adopted by the holders of a majority of the outstanding stock entitled to vote (Delaware Code).
• Employees: when all or part of a business is sold, even in an asset sale, WARN applies, and the seller is responsible for notice of a covered event before the sale takes effect (DOL).
• Commercial contracts: read each one for anti-assignment and change-of-control clauses, and collect the consents before closing.

Source: ABA Business Law Today: successor liability in distressed asset purchases (Mar 2026)

How company data and records transfer in an asset sale

Data and records are assets like any other, and the agreement decides whether they go with the business. Three rules shape what can move:

• Employee records, contracts with confidentiality clauses and data that vendors shared need their own review: they may not be the seller's to transfer.
• Keep what you must. The seller still has to keep the records that support its final tax returns until each return's period of limitations runs out, and employment tax records at least 4 years (IRS). Agree in the asset purchase agreement who keeps the originals and who gets copies.

Source: FTC: request that the bankruptcy court protect RadioShack consumers' personal information (May 2015)

Sell the records with the business, or license a copy?

Closing rather than selling? Business liquidation covers who is paid first and the assets auctions miss.

Records can earn money in a sale in more than one way, and the choice belongs in the agreement before signing:

• The details are in licensing company data when you sell a business. For the price of the business itself, see what is my business worth.

Before you delete company systems, check what the records are worth

A seller that keeps the entity after an asset sale often winds it down next, and the systems holding the excluded records get cancelled along with it. Check two things before that happens.

Checking the value takes minutes: see what your company's records are worth from six questions about the business, before any system is cancelled.

• Retention: keep what the tax and employment rules require, and preserve anything tied to a dispute. The closing a business checklist lists the periods.
• Value: export first, then describe the systems, the years covered and the rough volume. Exporting records before closing covers each system.

Asset sale checklist for sellers

• Get a valuation of the business, and a separate one of its records.
• Decide with your advisers between an asset sale and a stock sale, comparing tax, liabilities and consents.
• List every asset and liability, including records, data, code, domains and IP.
• Decide for the records: transfer, exclude, license a copy first or carve out the right.
• Read the privacy policy and check what customer data can move.
• Agree the purchase price allocation in writing and file Form 8594 with the return.
• Collect contract consents, novations for government contracts and owner approvals.
• Check state bulk sale and sales tax successor rules, such as California's.
• Plan employee notices, including WARN if it applies.
• Agree who keeps the original records and who gets copies after closing.
• Wind down the selling entity if it has no further business.

Next step

Decide what happens to the records before the letter of intent turns into an agreement. If the business holds years of tickets, work orders, chat or code, describe them first; no export is needed to find out whether they are worth licensing. If the entity will close after the sale, see selling company data after closing.

Origin Data Partners is independent and is not affiliated with any AI data buyer. We help owners compare buyers and find the best fit for their records. See what your data is worth.