In an asset purchase, your company buys selected assets and takes only the liabilities it agrees to assume. In a stock purchase (or a purchase of membership interests in an LLC), you buy the owners' shares and with them the whole company, including its contracts, history and unknown liabilities. Buyers often lean toward asset deals for liability and tax reasons, and sellers often lean toward stock deals. Contracts, licenses and entity type can flip that, so the final call belongs to deal counsel and your accountant. This primer shows what moves in each structure and what each means for your insurance.
The short answer
- Asset purchase: you buy listed assets and assume only the liabilities you agree to. Contracts, licenses and policies usually need their own transfer steps.
- Stock purchase: you buy the entity, so contracts, permits and insurance policies usually stay in place, along with the history, known and unknown.
- An asset deal is not automatically clean. Courts and some statutes can still reach a buyer, especially when the name, staff and customers continue.
- Tax treatment usually differs between the two, and the effect depends on entity type. Ask your accountant before you agree to a structure.
- Insurance consequences differ: asset buyers generally need their own policies in force at closing, while stock buyers usually keep the target's own policies, along with their reporting duties.
What is the difference in plain English?
Picture the business as a shop owned by a company. In an asset purchase, you buy what is inside (equipment, inventory, customer lists, the name, goodwill) and agree which of the company's debts you will take on. The seller's company stays behind with whatever you did not take. In a stock purchase, you buy the seller's company itself, shares for a corporation or membership interests for an LLC. Nothing is moved, because the same legal entity simply has a new owner.
A merger is a third route that combines two entities by law. It has its own rules and is outside this primer. Which structure fits your deal is usually settled in the letter of intent (see what an LOI is) and written into the purchase agreement (see what the purchase agreement covers).
What transfers in each structure?
This table describes the general rule. Contracts, licenses and state law create exceptions, so treat it as a list of questions for your advisers.
| Item | Asset purchase | Stock purchase |
|---|---|---|
| Legal entity and history | Stays with the seller. Your company, often newly formed, starts fresh | You buy the same entity, with its history |
| Liabilities | You generally take only those you agree to assume, subject to exceptions | You inherit the entity's obligations, known and unknown |
| Contracts and leases | Each may need an assignment, and the other side's consent if the contract bars transfer (an anti-assignment clause) | The contracting entity is unchanged, so a plain anti-assignment clause is usually not triggered, but a change-of-control clause (a term that lets the other side react when ownership changes) can be |
| Licenses and permits | May need your own license or the issuing agency's consent | Generally stay with the entity. Check for ownership-change notices |
| Employees | You choose whom to offer jobs. Many benefit plan obligations stay with the seller unless you take them on, but continuation coverage (COBRA) duties can shift to a buyer that continues the business (see group health benefits after an asset sale) | Employees stay with the same employer, so their claims become your concern, subject to indemnity |
| Tax basis | You allocate the price among the assets and can generally recover cost faster | For a corporation, the seller's existing tax basis generally carries over. Buying LLC interests can be taxed differently, so ask your accountant |
| Insurance policies | Standard policy conditions bar transfer without the insurer's written consent, so you usually need new policies in force at closing | The named insured is unchanged, so the target's own policies usually continue, subject to change-in-control provisions, reporting duties and any policy shared with the seller's other businesses |
| Workers' compensation experience | In states that use the National Council on Compensation Insurance (NCCI) rating system, taking over operations is an ownership change. The seller's experience generally transfers when the seller sells all of its operations. For a partial purchase it depends on whether the insurer can split out the data | Also an ownership change. The same entity keeps its policy and experience |
| Closing paperwork | Bill of sale, assignments, asset and liability schedules | Stock certificates or an assignment of membership interests |
Who usually prefers which, and why?
Buyers and sellers often want opposite structures, and the tension is usually negotiated through price.
- Buyers often prefer assets. You can pick the liabilities you take, and the tax treatment of the purchase price can be more favorable. An accounting firm describes the buyer's ability to allocate the price and recover cost faster as the usual reason asset sales dominate smaller deals.
- Sellers often prefer stock. A stock sale can be simpler and, depending on the seller's entity, can produce a better after-tax result for the seller. The same firm calls this a common negotiating tension.
- Complicated contracts and licenses can flip the answer. If the business holds contracts or permits that are hard to move, a stock deal can be the practical choice.
Tax is where the structures differ most, and your accountant should confirm every point for your facts. In an asset deal, buyer and seller agree how the price is split across the assets (the IRS asks both to report it on Form 8594), and that split affects how fast you can write off what you paid. Goodwill, for example, is generally amortized over 15 years. In a stock deal the seller's existing tax basis generally carries over. Some stock deals can elect to be treated like asset deals for tax, but only in limited cases, and an individual buyer may not qualify. The seller's entity type (C corporation, S corporation, LLC or sole proprietorship) changes the result for both sides.
Is an asset purchase really a clean break?
Not always. The general rule is that an asset buyer does not take on the seller's debts just by buying assets, but courts recognize four traditional exceptions: the buyer agreed to assume the liability, the deal was really a merger in disguise (a de facto merger), your company is the old company under a new name (a mere continuation), or the deal was a fraudulent attempt to escape debts. A few states add a fifth exception for some product injury claims. How strictly courts apply these varies by state. Keeping the seller's name, location, staff and customers is exactly what continuation arguments look at.
Some liabilities follow the business whatever the contract says. Federal courts have applied a broader successor test to some federal labor and employment claims, and one federal appeals court held a buyer liable for a seller's pending wage claims even though the purchase agreement excluded them. Some statutes reach buyers too, for example for unpaid taxes and certain environmental cleanup. Some states make an asset buyer liable for the seller's unpaid taxes unless the buyer follows a notice and clearance process (Indiana is one example, for closings on or after February 14, 2024, and the state says a contract cannot change it). Other states may have their own steps, and rules and timing vary, so check each state where the seller operates.
Insurance may respond to some unknown injury, damage and product claims, depending on who is insured, the policy wording and the timing. Your new policy usually will not respond to injury that happened before it started (a new claims-made policy may reach back only if the carrier agrees to an earlier retroactive date, the earliest date of work it covers), so the seller's old policies, tail coverage and the indemnity matter. Insurance generally does not respond to known problems, taxes or wage claims, which are usually handled by price, specific indemnities or escrows. For the insurance-focused view, see successor liability when an asset purchase is not clean and the guides linked in the insurance section below. The Small Business Administration (SBA) also treats an asset purchase with no clear continuity of operations differently: the lender may evaluate it as a start-up (see how SBA 7(a) loans work).
How do you decide which structure fits?
Use this as a question list for deal counsel and your accountant, not as an answer key.
| If this is true | It may point toward | What to ask |
|---|---|---|
| The business holds licenses or permits that do not move easily | Stock | Does the issuing agency allow a transfer or require a new application? Is notice of an ownership change due? |
| Key contracts have anti-assignment clauses | Stock, or asset with consents lined up first | Which counterparties must consent, and do any have change-of-control clauses? |
| You are worried about unknown liabilities | Asset, with indemnity and escrow | What does the agreement exclude, who backs the indemnity, and what could still reach you? |
| The tax benefit of allocating price matters to your model | Asset | How does the seller's entity type change their ask on price? |
| You want the existing insurance history and policies to continue | Stock | Do the policies have change-in-control terms, and what notice is due? |
| You want to hire selectively and leave old plans behind | Asset | Which employee-related obligations can still follow the business? |
| The seller is an LLC, S corporation or sole proprietorship | Either | How does the seller's entity type, and the tax treatment of buying its interests versus its assets, change the price they will accept and your after-tax cost? |
What might the choice look like for one business?
A hypothetical example. A buyer is purchasing a $2 million services company that holds a state license and has three large customers, one with an anti-assignment clause and a change-of-control clause.
As an asset purchase, the buyer's new company asks that customer to consent, applies for or re-qualifies the license, signs new insurance policies effective at closing, and decides which employees to hire. The seller's old policies stay with the seller, and the seller may need tail coverage on any claims-made policies. The buyer negotiates which liabilities it assumes and sets aside an escrow for unknown claims.
As a stock purchase, the license, contracts and policies generally stay in place, but the customer's change-of-control clause may still be triggered. The buyer also takes the company's history, including claims no one has made yet, and relies on the seller's indemnity, an escrow and a careful review of the existing policies.
The right structure depends on which contracts, licenses and liabilities matter most in your deal. The numbers and terms are invented for illustration.
What changes for insurance in each structure?
- Asset purchase. Plan for your own policies, with your new company as the named insured, bound and in force at closing. A quote is not coverage. The standard commercial policy condition says an insured's rights and duties may not be transferred without the insurer's written consent, and the workers' compensation policy has a similar condition. Ask deal counsel whether the seller must buy tail coverage (an extended reporting period) on claims-made policies. Old claims on the seller's occurrence policies are a matter for the purchase agreement.
- Stock purchase. The existing policies usually continue in the same named insured if the target holds its own policies. Check them for change-in-control provisions, give any required notices, confirm the target is not covered under a policy that stays with the seller or is shared with the seller's other businesses, and ask your broker to add your holding company or new owners where the policy requires it.
- Both. Report the ownership change to your workers' compensation insurer within 90 days in NCCI states (ask your broker whether your state is one), since both structures count as an ownership change when you take over operations. Some states use other rating bureaus or state funds (North Dakota, Ohio, Washington and Wyoming have monopolistic state funds), so check yours. In two of the state-fund states, Washington and Ohio, successor rules can make a buyer answer for a seller's unpaid workers' compensation amounts in some situations, so ask counsel about notice and clearance steps before closing. North Dakota and Wyoming also run state funds, so ask your broker how successor rules work there.
For the full insurance comparison, see stock deal vs asset deal: whose insurance responds to old claims, prior acts and tail coverage and keep the seller's insurance or start over. Once counsel settles the structure, Morrow can show what each choice means for the seller's policies you would keep or replace, and it focuses on business insurance. Structure and tax decisions belong with deal counsel and your accountant.
Keep reading
- Stock Deal vs Asset Deal: Whose Insurance Responds to Old Claims?
- Successor Liability: When an Asset Purchase Is Not Clean
- Prior Acts and Tail Coverage After an Acquisition: Who Pays?
- Should I Keep the Seller's Insurance or Start Over? A Decision Guide
- What a Business Purchase Agreement Covers
- All guides for new business owners
Frequently asked questions
Which is better for a buyer, an asset purchase or a stock purchase?
Neither is better in every deal. Buyers often prefer asset purchases for liability and tax reasons, but contracts, licenses and the seller's entity type can make a stock purchase more practical. Ask deal counsel and your accountant.
Does an asset purchase protect me from the seller's old liabilities?
Often, but not always. An asset buyer generally takes only the liabilities it assumes, yet courts and some statutes can still reach a buyer, particularly when the name, staff and customers continue. Contract language alone may not protect you from certain federal employment claims.
Do the seller's insurance policies transfer to me in an asset purchase?
Usually not. Standard policy conditions bar transfer of an insured's rights without the insurer's written consent, so a buyer's new company generally needs its own policies in force at closing.
Does my workers' compensation experience mod start over in an asset purchase?
Usually not. In NCCI states, taking over a business's operations is an ownership change, and when you buy all of the seller's operations its experience generally transfers to you, even if your company is brand new. Dropping it requires a near-complete change of owners plus a change in operations and hazards, which is rare. If you buy only part of the operations, the outcome depends on whether the seller's insurer can split out that data. Other states and state funds have their own rules, so ask your broker.
Will my lender care whether I buy assets or stock?
Often, yes. An SBA lender may treat an asset purchase with no clear continuity of operations as a start-up, and many lenders have their own views on structure. Raise it with your lender before you settle the letter of intent.
References
- Ballard Spahr: The Art of the (Bad) Deal, Successor Liability in M&A Transactions (June 1, 2020)
- Weil, Gotshal & Manges: What You Don't Know Can Hurt You, Successor Liability and Sec. 363 Asset Sales
- Pease Bell: Stock Purchase vs Asset Purchase, Tax and Legal Differences (December 22, 2023)
- IRS: About Form 8594, Asset Acquisition Statement Under Section 1060
- IRS: Instructions for Form 8023 (section 338 elections)
- 26 U.S.C. 197: Amortization of goodwill and certain other intangibles
- Indiana Department of Revenue: Successor Liability (Notice of Transfer in Bulk)
- NCCI: Experience Rating Plan Manual rules on ownership changes (Item E-1411, as filed in Texas)
- IL 00 17 11 98, Common Policy Conditions (carrier copy of the ISO form)
- Lowenstein Sandler: Are Your M&A Deals Creating Gaps in Insurance Coverage?
- Pillsbury: Preserving Insurance Coverage Rights in Corporate Transactions (August 13, 2026)
- SBA: SOP 50 10 8.1, Lender and Development Company Loan Programs
- Washington State Legislature: RCW 51.16.200
- Ohio Administrative Code 4123-17-02, Successorship (effective July 1, 2023)
- U.S. Department of Labor: An Employer's Guide to Group Health Continuation Coverage Under COBRA
- 26 CFR 54.4980B-9: COBRA, business reorganizations and employer withdrawals from multiemployer plans
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This article is general information, not legal, tax or financial advice, and not a coverage determination. Coverage depends on the actual policy wording, carrier underwriting, your purchase agreement and your contracts. Ask your attorney and accountant about deal and legal questions.