1. Why the Structure of a Divestiture Determines Everything That Follows
The choice between an asset sale and a stock sale is the most consequential structural decision in any divestiture, and it affects the tax outcome, the liability allocation, and the complexity of the closing process in ways that cannot be undone after the deal is signed.
In a stock sale, the buyer acquires the legal entity that owns the business, including all of its liabilities, contracts, permits, and tax history. The seller receives capital gains treatment on the difference between the sale price and the adjusted basis in the stock. The buyer receives no step-up in the tax basis of the underlying assets unless a Section 338 election is made. The buyer inherits all of the entity's pre-closing liabilities, including contingent liabilities that may not be fully known at signing.
In an asset sale, the buyer selects which assets to acquire and which liabilities to assume. Unknown and undisclosed liabilities stay with the seller. The buyer receives a step-up in the tax basis of the acquired assets to the purchase price, producing larger depreciation deductions going forward. The seller, if it is a C corporation, pays tax twice: once at the corporate level on the gain from the asset sale and again at the shareholder level on the distribution of the proceeds. This double tax cost makes asset sales significantly more expensive for corporate sellers and is a primary driver of the preference for stock sales in most corporate divestitures.
How Section 338 Elections Change the Tax Math on Stock Sales
A Section 338 election under the Internal Revenue Code allows a buyer in a stock sale to treat the acquisition as if it were an asset purchase for tax purposes, giving the buyer a stepped-up tax basis in the target's assets without requiring the legal complexity of transferring individual assets, contracts, and permits.
A standard Section 338 election requires the seller's consent because the election triggers a deemed asset sale that creates taxable gain at the target company level. This gain is borne by the seller, which is why sellers rarely agree to a standard 338 election without a price adjustment that compensates them for the additional tax cost.
A Section 338(h)(10) election, available when the target is a subsidiary of a consolidated corporate group or an S corporation, is treated differently. The election is made jointly by the buyer and seller and is typically incorporated into the economic terms of the deal at the outset. It produces a deemed asset sale at the subsidiary level while the actual transaction remains a stock sale, giving the buyer a stepped-up basis while avoiding the separate transfer of individual assets. An attorney who handles asset sales and divestiture transactions can model the tax cost of each election structure and identify which approach produces the best combined outcome for both parties before the letter of intent is signed.
| Structure | Seller Tax Treatment | Buyer Basis | Liability Transfer | Best for |
|---|---|---|---|---|
| Asset sale | Ordinary income or capital gains by asset class | Step-up to purchase price | Selected liabilities only | Buyers seeking clean break, asset-heavy targets |
| Stock sale | Capital gains on stock basis | Carryover basis | All entity liabilities | Sellers preferring single tax level |
| Stock sale with 338 election | Deemed asset sale, additional tax cost | Step-up to purchase price | All entity liabilities | Buyers needing step-up without legal asset transfer |
| Stock sale with 338(h)(10) | Deemed asset sale, jointly elected | Step-up to purchase price | Selected liabilities | Corporate subsidiary or S corp divestitures |
2. How Regulatory-Mandated Divestitures Work in Antitrust Proceedings
When the DOJ or FTC determines that a proposed merger or acquisition would substantially lessen competition in a relevant market, the agencies frequently require the merging parties to divest specific assets or business lines as a condition of approving the transaction.
Regulatory divestitures are not optional. They are conditions imposed by the agency through a consent decree that becomes a binding court order. The parties must identify an approved buyer for the divested business, obtain agency approval of that buyer, and complete the divestiture within a specified period after the consent decree is entered. Failing to complete the divestiture on the required timeline gives the agency the right to appoint a trustee to conduct the sale on terms that may not reflect the seller's preferred outcome.
The scope of what must be divested is determined by the agency's competitive analysis, and the parties have limited ability to challenge the required remedy once they have agreed to a consent decree as the price of getting the primary transaction approved. Negotiating the scope of the required divestiture at the pre-consent decree stage, before the parties have committed to a specific remedy, is where legal strategy has the most impact on the final outcome. An attorney who handles antitrust and competition law matters can engage with agency staff during the merger review process to narrow the scope of required divestitures and identify buyers that will satisfy the agency's competitive concerns.
Designing the Transition Services Agreement for a Successful Separation
A transition services agreement, or TSA, is the contract that governs the parent company's obligation to continue providing services to the divested business after closing, and the quality of the TSA design has more impact on whether the divestiture succeeds operationally than almost any other document in the deal.
TSAs are necessary because divested businesses rarely have all the infrastructure they need to operate independently on day one. IT systems, payroll processing, accounting, HR administration, logistics, and shared manufacturing facilities are each potential subjects of TSA coverage. The TSA specifies which services will be provided, at what cost, for how long, and on what termination conditions.
Poorly designed TSAs create dependency that extends for years beyond the intended period, giving the seller operational leverage over the buyer and generating disputes that end up in M&A litigation. The key design decisions are the duration of each service stream, the cost methodology, the service level standards, and the exit assistance obligations that require the seller to help the buyer transition off each service at the end of the TSA term. An attorney who handles business sale transactions can structure TSA terms that protect the seller's post-closing operational flexibility while giving the buyer the support it needs to reach true independence within the agreed timeframe.
3. What Buyers and Sellers Need to Know about Divestiture Due Diligence
Due diligence in a divestiture looks different from due diligence in a standard acquisition because the seller, not the target, controls most of the information flow and because carve-out financial statements for the divested business frequently do not exist in the form that a buyer or their lenders require.
Carve-out financial statements present a specific challenge. The divested business may have shared overhead costs, intercompany transactions, and allocated expenses that must be restated to reflect what the business would have looked like as a standalone entity. This restatement requires accounting work that takes time and produces pro forma financials that reflect assumptions rather than historical actuals. Buyers who close on carve-out financial statements without understanding the assumptions embedded in them frequently encounter post-closing surprises in profitability that were not visible from the numbers presented.
Material contracts held by the parent entity that relate to the divested business but are not assignable without third-party consent present a separate category of risk. Supplier agreements, customer contracts, intellectual property licenses, and real estate leases that require consent to assign may not be transferred at closing, leaving the buyer dependent on the seller to maintain those relationships through the TSA or through a separate assignment and assumption process.
How Representations, Warranties, and Indemnification Work in Divestitures
Representations and warranties in a divestiture purchase agreement are statements of fact made by the seller about the condition of the business being sold, and they serve as the contractual basis for the buyer's indemnification claims if those statements turn out to be false.
The seller's representations in a divestiture typically cover the accuracy of the financial statements, the status of material contracts, the absence of undisclosed litigation, the condition of owned and leased property, the compliance of the business with applicable laws, and the absence of material adverse changes since the last audited financial period. Each representation is negotiated for scope, materiality thresholds, and the length of the survival period during which the buyer can assert a claim.
Warranty and indemnity insurance, sometimes called W&I insurance, is increasingly standard in mid-market and large divestitures as a mechanism for sellers to cap their post-closing liability exposure while giving buyers a creditworthy source of recovery for representation breaches. The seller negotiates a clean exit with minimal indemnification obligations, and the buyer purchases a W&I policy that covers representation breaches up to an agreed limit. An attorney who handles mergers and acquisitions and divestiture transactions can structure the representation and warranty framework and evaluate whether W&I insurance pricing supports its use as a deal-closing mechanism in your specific transaction.
Private Equity Divestiture Strategies and Exit Timing
Private equity firms approach divestitures differently from strategic sellers because their investment thesis, fund lifecycle constraints, and return requirements drive the timing and structure of the exit in ways that are not present in corporate divestitures.
A PE firm exiting a portfolio company through a sale process must balance competing pressures: the fund's remaining life limits the time available to maximize value, the portfolio company's EBITDA trajectory affects the valuation multiple achievable in the market, and the buyer universe shifts depending on whether the buyer is another PE firm, a strategic acquirer, or the public markets through an IPO.
Dual-track processes, in which the seller simultaneously prepares for an IPO and runs a controlled auction sale process, create competitive tension that can maximize the sale price for a PE-owned business. The decision of which track to pursue is made based on the relative valuations offered in each market at the time. Running both processes in parallel requires significant management bandwidth and legal coordination across corporate, securities, and M&A workstreams. An attorney who handles distressed M&A and divestiture matters can coordinate the legal workstreams across a dual-track process and advise on the disclosure obligations that arise when a company is simultaneously being marketed for sale and preparing for a public offering.
The W&I insurance market has compressed pricing significantly over the past several years, making coverage available at premium levels that no longer meaningfully erode seller returns. Whether W&I insurance is the right tool for a specific divestiture depends on the quality of the seller's representations, the buyer's risk tolerance, and the insurer's appetite for the business sector involved. Evaluating W&I insurance as a deal structure tool requires legal input on the representation framework before the policy terms are negotiated, not after.
4. Frequently Asked Questions about Divestiture
Corporate executives, board members, and investors approaching a divestiture for the first time encounter practical questions that go beyond the general concept of selling a business. The questions below address what most parties need to understand before the process begins.
What Is a Divestiture and How Does It Differ from a Standard Business Sale?
A divestiture is the sale, spin-off, or other disposition of a business unit, subsidiary, or asset portfolio by a company seeking to exit a non-core business, satisfy a regulatory requirement, or raise capital. It differs from a standard business sale in that the divested business is frequently embedded within a larger corporate structure, sharing systems, contracts, employees, and financial reporting with the parent. Separating those shared elements is the primary operational challenge that distinguishes a divestiture from a standalone business sale.
What Is the Difference between an Asset Sale and a Stock Sale in a Divestiture?
In an asset sale, the buyer selects specific assets and liabilities to acquire, leaving unknown or contingent liabilities with the seller. The buyer receives a tax basis step-up in acquired assets. In a stock sale, the buyer acquires the legal entity and inherits all of its liabilities, but the seller pays only one level of tax on the capital gain. Corporate sellers typically prefer stock sales to avoid double taxation. Buyers typically prefer asset sales to avoid unknown liabilities and to receive a stepped-up tax basis in the acquired assets.
When Is Hart-Scott-Rodino Filing Required for a Divestiture?
A Hart-Scott-Rodino filing is required when the transaction value exceeds the current HSR threshold, which is adjusted annually by the FTC. For transactions above the threshold, both the buyer and the seller must file notification with the DOJ and FTC and observe a mandatory waiting period before closing. The agencies use this period to review the competitive effects of the transaction. Divestitures that are themselves required by antitrust consent decrees in a prior merger are subject to their own HSR analysis if they meet the filing thresholds.
What Is a Carve-Out and Why Does It Create Financial Reporting Complexity?
A carve-out is a divestiture in which a portion of a larger business, rather than a legal entity that already exists as a standalone company, is being sold. Carve-out financial statements must be prepared to show what the divested business would have looked like as an independent entity, which requires restating shared costs, intercompany transactions, and allocated overhead. These restatements are based on assumptions rather than historical actuals and frequently require audit procedures that take longer than the parties anticipate when they set a closing timeline.
What Does a Transition Services Agreement Cover and How Long Does It Typically Last?
A transition services agreement covers the services the parent company provides to the divested business after closing to support its operations until the buyer can establish its own infrastructure. Common TSA services include IT systems, payroll and HR administration, accounting, legal, insurance, and shared manufacturing. TSA duration typically ranges from six months to two years depending on the complexity of the services involved. Poorly structured TSAs extend well beyond their intended duration and generate disputes that increase the total cost of the transaction to both parties.
What Is Warranty and Indemnity Insurance and When Should a Seller Consider It?
Warranty and indemnity insurance, or W&I insurance, is a policy purchased by the buyer that covers losses arising from breaches of the seller's representations and warranties in the purchase agreement. It allows sellers to limit or eliminate their post-closing indemnification obligations while giving buyers a creditworthy source of recovery. W&I insurance is most appropriate when the seller wants a clean exit, when the buyer's financing sources require a creditworthy indemnification backstop, or when the parties cannot agree on the scope of indemnification obligations during deal negotiation. An attorney who handles corporate due diligence and M&A transactions can structure the representation framework to support W&I coverage and coordinate the legal review with the insurer's underwriting process.
26 May, 2026
