Buying an Existing Business: A Legal Checklist

Buying an existing business isn't just a handshake and a check — you're also buying (or carefully avoiding) everything attached to it: its contracts, its debts, its tax history, and sometimes its legal problems. The single biggest decision you'll make is how the deal is structured, because that choice determines which of the seller's liabilities come home with you. Everything else on this checklist — due diligence, the purchase agreement, a non-compete from the seller, and protecting yourself from tax successor liability — flows from getting that structure right.

Asset Purchase vs. Entity (Stock/Membership) Purchase

There are two basic ways to buy a business:

• Asset purchase. You buy the specific things that make the business run — equipment, inventory, the customer list, the lease, the trade name, the goodwill — and you form your own entity (or use an existing one) to hold them. The seller's old company still exists after closing; it just no longer has a business inside it.
• Entity purchase. You buy the ownership interests themselves — the corporation's stock or the LLC's membership units. The company keeps its own legal identity, its own bank accounts, its own contracts, and, importantly, its own history of debts, lawsuits, and tax liabilities. You step into the seller's shoes entirely.

Buyers usually prefer an asset purchase for one reason above all others: you generally do not inherit the seller's unknown liabilities — the lawsuit nobody mentioned, the unpaid vendor, the old tax assessment — because you're buying specific assets, not the legal entity that racked up those obligations. An entity purchase can make sense when a business's contracts, licenses, or leases are hard or impossible to reassign to a new owner (see below), but it comes with more exposure, so it typically calls for deeper due diligence and stronger seller indemnities. Which structure fits your deal — and how it's taxed — is something to work through with your accountant and attorney before you sign anything, since the choice affects purchase-price allocation, depreciation, and (as discussed below) which of the seller's debts can still follow you even in an asset deal.

Due Diligence: What to Check Before You Sign Anything

Due diligence is the process of verifying what you're actually buying. Rushing it is the single most common reason buyers end up with a business worth less — or a lot more trouble — than advertised.

Contracts and leases

• Read every material contract: the real estate lease, equipment leases, vendor and supplier agreements, customer contracts, franchise agreements, and loan documents.
• Check each one for an assignment clause. Many contracts and leases require the other party's written consent before they can be transferred to you — without that consent, the contract may not survive the sale, or the landlord/vendor may be able to walk away or renegotiate on worse terms.
• Look for change-of-control clauses, personal guarantees the seller signed (which don't automatically end just because the business changed hands), and termination rights.

Liens and UCC filings

• Run a UCC search against the seller (in the state where the business is organized and where its assets are located) to see whether a lender or supplier has a filed security interest in the equipment, inventory, or receivables you're about to buy. A lien doesn't disappear just because ownership changes.
• Check for judgment liens, mechanic's liens, and any pending litigation involving the business.

Tax and payroll status

• Confirm the business is current on federal payroll tax deposits, federal and state income tax filings, and state sales/use tax. Withheld payroll taxes are trust-fund money, and unpaid trust-fund taxes can create personal liability for "responsible persons" — a status that isn't automatically erased by a change of ownership if you're not careful about the deal structure.
• Many states let (or require) a buyer to request a tax clearance certificate, or require advance notice of a "bulk sale" of business assets, specifically so the state gets a last chance to collect what the seller owes before the sale closes. Whether this applies, what it's called, and how long it takes varies significantly by state — ask your accountant and check with your state's department of revenue early, since some states need weeks of lead time.

Licenses and permits that may not transfer

• Business licenses, professional licenses, liquor licenses, health permits, and similar authorizations are often issued to a specific person or entity and are frequently not transferable — you may need to apply for your own, sometimes before you can legally open. Confirm this with the issuing state or local agency for every license and permit the business relies on, and build the lead time into your closing timeline.
• If the business operates under a trademark, franchise, or licensed brand, confirm with the franchisor or licensor whether — and how — that relationship can transfer to you.

Employees, if you're keeping them

If you plan to keep the seller's staff, budget time to review employment agreements, wage and hour practices, and any workers' compensation history — the employer's ongoing obligations to hired workers are covered in depth on our employment pages, and workplace injury coverage is covered in our workers' compensation pages. This checklist focuses on the acquisition itself, not on running payroll afterward.

The Purchase Agreement

The purchase agreement is where all of this due diligence gets translated into enforceable protection. At minimum, expect (and have your attorney negotiate) provisions covering:

• What's included and excluded. In an asset deal, a precise schedule of exactly which assets you're buying and which liabilities you are — and are not — assuming.
• Representations and warranties. The seller's written statements about the state of the business (that the financials are accurate, taxes are paid, there's no undisclosed litigation, etc.), which give you a contractual remedy if something turns out to be false.
• Indemnification. The seller's promise to cover you for losses if a pre-closing liability surfaces after closing — often backed by a holdback or escrow of part of the purchase price for a defined period.
• Purchase price allocation. For an asset purchase, the buyer and seller allocate the price among asset categories (equipment, inventory, goodwill, and so on). Both sides generally must report this allocation to the IRS, consistently, using Form 8594 — get your accountant involved in this early, since it affects both parties' tax treatment.
• Conditions to closing. Items that must happen before the deal closes — landlord consent, license transfers or new licenses issued, a lender payoff, receipt of a tax clearance certificate.

Getting a Non-Compete From the Seller

Without a non-compete, there's usually nothing stopping the seller from opening a nearly identical business down the street next month and taking the customer relationships with them. A reasonable non-compete from the seller — limited in duration, geographic scope, and the type of activity it restricts — is a standard, expected part of buying a business, distinct from an employee non-compete.

How enforceable a non-compete is, however, depends entirely on state law, and state law varies widely. Many states will enforce a reasonably drafted seller non-compete tied to the sale of a business, and even states that are hostile to non-competes in the ordinary employment context often treat a sale-of-business non-compete differently. California, for example, voids most employment non-competes but by statute allows a seller to agree not to compete when it is tied to the sale of a business's goodwill or ownership interest — subject to narrow, strictly applied conditions on activity, scope, and geography. A few states are more restrictive still, and the exact conditions a clause must satisfy differ from state to state. There is currently no general federal rule governing non-compete agreements — the FTC's proposed nationwide ban was struck down in court and later withdrawn — so enforceability remains a state-law question. Have the specific language reviewed by an attorney licensed in the state where the business operates before you rely on it.

Successor Liability for Unpaid Taxes

This is the risk that makes "just do an asset deal" incomplete advice on its own. Even in a properly structured asset purchase, many states have successor liability statutes that can make a buyer responsible for the seller's unpaid state sales, use, or withholding taxes attached to the business — specifically to prevent business owners from selling out from under their tax debts. The protections generally available to a buyer include:

• Requesting a tax clearance certificate from the relevant state tax agency (or agencies) before or at closing, confirming the seller has no outstanding liability.
• Giving required bulk-sale notice to the state tax authority in advance, where your state requires it, so the state has a chance to assert a claim before the sale closes.
• Withholding part of the purchase price in escrow until tax clearance is confirmed.

Exactly which of these steps apply, what they're called, and how long they take to complete varies by state — some require weeks of advance notice, and skipping the process can leave you on the hook for someone else's tax bill even though you never signed a return for that business. Confirm the current procedure with your state's department of revenue (and your accountant) as one of the first things you do, not the last.

Separately, if the business you're buying is deeply insolvent or the seller is heading toward bankruptcy, that changes the deal calculus in ways beyond the scope of this checklist — our bankruptcy pages cover how business bankruptcy and personal guarantees work if that becomes relevant to your purchase.

What to Do: A Practical Order of Operations

1. Sign a confidentiality agreement (and, if appropriate, a non-binding letter of intent) before the seller shares sensitive financials.
2. Assemble your team: a business attorney and an accountant or CPA, ideally before you make an offer, not after.
3. Decide, with your advisors, whether an asset or entity purchase fits the deal — this drives everything downstream.
4. Run full due diligence: contracts, leases, UCC/lien searches, litigation checks, tax and payroll status, and every license or permit the business depends on.
5. Start the tax clearance / bulk-sale notice process with your state early, given how long it can take.
6. Negotiate the purchase agreement, including representations, indemnification, an escrow/holdback if warranted, and a seller non-compete.
7. Confirm which licenses, leases, and contracts actually need consent to transfer — and get that consent, or a new license in hand, before you rely on it at closing.
8. Close, then follow through on post-closing filings, including purchase-price-allocation reporting to the IRS.

Why This Is Not a Do-It-Yourself Deal

Every one of the risks above — inheriting a hidden lien, losing a lease you assumed would transfer, being surprised by a state tax claim, discovering a non-compete you thought you had isn't enforceable in your state — is exactly the kind of thing a business attorney and an accountant are trained to catch before it becomes your problem instead of the seller's. The cost of getting good advice before closing is almost always smaller than the cost of fixing a bad deal after closing. Free resources like your local Small Business Development Center or SCORE chapter (both linked from sba.gov) can help you get oriented, but for the purchase agreement itself and the tax clearance process, a qualified attorney and CPA licensed in your state are worth the investment.

Frequently Asked Questions

Is an asset purchase always better for the buyer?

It's usually preferred because it limits inherited liability, but it isn't automatically better in every case — some contracts, licenses, or favorable leases are hard to reassign and may be easier to keep in place through an entity purchase. The right structure depends on the specific business and should be worked out with your attorney and accountant.

Can I be held responsible for the seller's unpaid taxes even if I only bought the assets?

Yes, potentially. Many states have successor liability rules for unpaid sales, use, or withholding taxes that can reach a buyer regardless of deal structure unless you follow that state's clearance or bulk-sale notice procedure. Confirm the process with your state tax agency before closing.

Do I automatically get to keep the seller's business license?

Generally no. Most licenses and permits are issued to a specific person or entity and don't transfer automatically with a sale. Check with the issuing agency for each license the business relies on, and build time for a new application into your timeline.

Will a non-compete from the seller definitely hold up?

It depends on your state. Non-compete enforceability is governed by state law, which varies significantly — many states enforce a reasonable seller non-compete, while others (including states that void most employment non-competes) allow one only under narrow, strictly applied conditions. Have the specific clause reviewed by an attorney in the state where the business operates.

Do I need a lawyer if the deal is small?

Even small acquisitions carry the same categories of risk — undisclosed liens, non-transferable licenses, tax successor liability — just at a smaller dollar scale. A short consultation with a business attorney and accountant before you sign is inexpensive relative to the risk of an unreviewed agreement.

This article is general information, not legal, tax, or financial advice, and does not create an attorney-client or accountant-client relationship.