Carve-out management in M&A is the coordinated work of extracting a business unit, product line, or division from a parent company and turning it into a standalone entity, whether for sale to a third party or distribution to shareholders. It runs across finance, legal, tax, IT, HR, and operations at the same time, on a timeline the deal sets. Done well, the parent avoids stranded costs and the new entity launches at full value. Done poorly, it produces post-closing disputes, missed closing dates, and unbudgeted expenses that can run into the millions.
The work breaks into a handful of interlocking decisions and workstreams. Each has its own failure mode, and the order matters, because downstream steps depend on the choices made upstream.
Drawing the Perimeter
Every carve-out starts by defining what leaves and what stays. Perimeter definition is an inventory of every asset, liability, employee, and customer contract that belongs to the carved-out entity. It sounds mechanical, but this is where most carve-outs hit their first serious friction. A shared manufacturing line, a patent portfolio with overlapping uses, a customer contract that covers both the departing unit and a retained division — ambiguities like these don’t resolve themselves, and every one left unaddressed becomes a post-closing dispute.
The perimeter must cover tangible assets like equipment and inventory alongside intangibles: intellectual property, trade names, customer lists. This mapping becomes the backbone of the legal agreements that govern the transfer. Miss something and you either leave value on the table or saddle the parent with obligations it thought it was shedding.
Standing Up the New Legal Entity
Once the perimeter is set, a new legal entity must be created to receive the transferred assets and liabilities. Sequencing matters. File Articles of Incorporation with the relevant state first, then apply for an Employer Identification Number with the IRS. The IRS issues EINs for free and processes online applications in minutes, but the entity must be legally formed at the state level before the agency will accept the application.1Internal Revenue Service. Get an Employer Identification Number
The new entity also needs officers, a board, and bylaws. Nearly everything downstream depends on this corporate shell being in place: opening bank accounts, registering for payroll taxes, entering vendor contracts, receiving transferred intellectual property. Delays here cascade through every other workstream.
Choosing the Deal Structure
The structure of the transaction shapes the entire separation and the tax outcome for both sides.
Asset Sales
In an asset sale, the parent transfers specific assets while generally retaining liabilities. The IRS treats each transferred asset as a separate sale for purposes of determining gain or loss, and both parties must file Form 8594 to report how the purchase price was allocated across seven asset classes.2Internal Revenue Service. Sale of a Business3Internal Revenue Service. About Form 8594, Asset Acquisition Statement Under Section 1060 The allocation determines how much gain the seller recognizes on each class and what depreciable basis the buyer takes. Buyers generally push for more of the price to land on assets with shorter depreciable lives, like equipment; sellers often prefer allocation to capital gain assets. This is one of the more contentious parts of deal structuring.
Asset sales can also trigger state-level sales tax on transfers of tangible personal property, though many states exempt isolated or occasional sales outside the seller’s regular business. Some states have bulk sale notification laws requiring the seller to notify creditors before closing. Rules vary significantly by jurisdiction.
Stock Sales
A stock sale involves selling the equity of a newly formed subsidiary. Contract transfers are simpler because the entity itself doesn’t change hands legally. The trade-off: the buyer inherits all liabilities, which typically means heavier due diligence and more aggressive indemnity negotiation.
Tax-Free Spin-Offs Under Section 355
When the parent distributes the stock of a subsidiary to its existing shareholders rather than selling it to a third party, the transaction may qualify as tax-free under Section 355 of the Internal Revenue Code. If the requirements are met, neither the parent corporation nor the shareholders recognize gain on the distribution.4Office of the Law Revision Counsel. United States Code Title 26 – Section 355
The requirements are strict. Both the parent and the distributed subsidiary must be engaged in the active conduct of a trade or business immediately after the distribution, and that business must have been actively conducted for the five years preceding the distribution. The parent must distribute all of its stock in the subsidiary (or at least enough to constitute control), and the transaction cannot serve principally as a device to distribute earnings. The IRS also requires a real and substantial business purpose for the separation and continuity of shareholder interest in both entities afterward.4Office of the Law Revision Counsel. United States Code Title 26 – Section 355
A transaction that fails these tests is treated as a taxable dividend to shareholders, and the parent recognizes gain on any appreciated stock it distributes. Section 355(e) adds another trap: if there is a 50% or greater change in ownership of either corporation as part of a plan that includes the distribution, the parent faces corporate-level tax even if the distribution otherwise qualifies. The provision is designed to catch spin-offs that are really disguised sales.
Valuation and the Buyer’s Scrutiny
Valuation methodology determines how hard the buyer will push on financial separation. Buyers scrutinize standalone EBITDA, and the higher the transaction value, the more precision they demand in cost allocations and working capital adjustments. A sloppy allocation that inflates EBITDA by even a few percentage points will surface during due diligence, and the resulting price renegotiation erodes trust at exactly the wrong moment.
Regulatory Filings That Gate Closing
Two federal notification regimes can dictate the closing timeline, and both carry real penalties if ignored.
Hart-Scott-Rodino
The Hart-Scott-Rodino Act requires both parties to notify the Federal Trade Commission and the Department of Justice before closing a transaction that exceeds certain size thresholds. As of February 17, 2026, the minimum transaction size that triggers a filing is $133.9 million. Filing fees scale with deal size, starting at $35,000 for transactions under $189.6 million and rising to $2,460,000 for transactions of $5.869 billion or more.5Federal Trade Commission. New HSR Thresholds and Filing Fees for 2026
After filing there is a mandatory waiting period. The standard is 30 days, and it can extend significantly if the agencies request additional information. Reportability is determined using the threshold in effect at the time of closing, while the filing fee is based on the threshold in effect when the waiting period begins.5Federal Trade Commission. New HSR Thresholds and Filing Fees for 2026 Teams that don’t build the waiting period into the closing schedule end up scrambling.
WARN Act Notice
If the carve-out results in significant layoffs or a site closure, the federal Worker Adjustment and Retraining Notification Act may apply. Employers with 100 or more qualifying employees must provide at least 60 calendar days’ written notice before a plant closing affecting 50 or more employees, or a mass layoff affecting 500 or more employees (or 50–499 employees if they represent at least a third of the workforce at that site).
In a sale scenario, the seller is responsible for providing notice for layoffs occurring up to and including the closing date. The buyer takes over that obligation for layoffs after closing. Many states impose additional notification requirements with longer timelines or lower employee thresholds, so the compliance review must cover both federal and state law. The clock on WARN starts when the layoff decision is made, not at closing, and failing to give the required 60 days’ notice exposes the responsible party to back pay liability for each affected employee.
Building Standalone Financial Statements
Carve-out financial statements reconstruct the historical performance of the departing business as if it had always operated independently. For transactions involving SEC-registered entities, they must comply with SEC Regulation S-X and are prepared under U.S. GAAP (or IFRS for non-U.S. filers). These statements are the buyer’s primary due diligence tool and the foundation for purchase price negotiations.
The challenge is that the parent’s general ledger was never designed to track the unit as a standalone business. Revenue is often straightforward to isolate. Costs — especially shared corporate costs — are tangled throughout the parent’s books, and untangling them requires judgment calls that auditors, regulators, and buyers will all second-guess.
Direct and Indirect Costs
Direct costs — manufacturing labor, dedicated sales force salaries, raw materials consumed by the unit — can be traced straight from the parent’s ledger using cost center or department codes. These are the easy ones.
Indirect costs are where the real work begins. Shared corporate expenses supported the entire parent: headquarters rent, centralized legal and accounting staff, enterprise-wide insurance, the CFO’s salary. None of it was tracked by unit. The parent must develop a defensible method to allocate a fair portion of these costs to the carved-out entity. If the standalone financials understate what it actually costs to run the business, the buyer will discover the gap after closing and the relationship deteriorates fast.
Allocation Methodologies
The SEC has made clear that cost allocations in carve-out financials must be reasonable, and the methodology must be explained in the footnotes along with management’s assertion that the approach is fair. Common allocation bases include the unit’s share of total revenue, headcount, or occupied square footage. IT costs might be allocated by number of system users; insurance might be allocated by relative asset value.
The goal isn’t just to slice up historical costs. It’s to approximate what the entity would have spent as a standalone operation. That sometimes requires a “but-for” analysis: what would this function have cost if the business couldn’t rely on the parent’s scale and infrastructure? The answer often produces higher numbers than simple pro-rata allocation, which is uncomfortable but honest. The methodology must be applied consistently across every historical period presented; switching methods between years makes the financials look manipulated even when the change was well-intentioned.
Intercompany Transactions
Intercompany transactions — internal sales of goods, shared service charges, intercompany loans — were eliminated in the parent’s consolidated financials because they netted to zero across the enterprise. In carve-out financials, those transactions must be restored and presented as related-party activity, because the carved-out entity and the parent are now treated as separate reporting entities. Terms and pricing need full disclosure, especially if the pricing didn’t reflect market rates.
Intercompany debt that isn’t explicitly transferred to the new entity must be settled or reclassified as a deemed equity contribution from the parent. That treatment can significantly affect the equity section of the carved-out balance sheet and needs to be negotiated as part of the separation agreement.
Balance Sheet Reconstruction
Reconstructing the balance sheet requires assigning shared assets and liabilities to the carved-out entity. Cash balances are typically not transferred directly; they’re reflected as a net equity contribution or distribution representing the parent’s historical funding decisions.
Fixed assets must be physically inventoried, reconciled against the parent’s asset ledger, and legally transferred using deeds or bills of sale. Liabilities like pension obligations get split based on actuarial calculations and the terms of the separation agreement. Corporate debt is especially complex, since the parent’s borrowings supported the whole enterprise, and unless debt is legally assigned to the new entity, the parent’s historical interest expense stays off the carved-out income statement.
The final balance sheet includes a “Parent Company Net Investment” line in the equity section. That single line captures the cumulative effect of every historical transaction between the parent and the carved-out entity — funding, allocated costs, intercompany settlements — replacing what would normally be a traditional equity structure with retained earnings and paid-in capital.
Operational Separation
Financial and legal separation get the most attention. Operational separation is where carve-outs actually succeed or fail. IT, payroll, supply chains, real estate, and contracts all have to be disentangled on a timeline the deal dictates, and every workstream can delay closing or disrupt the business on Day One.
Information Technology
IT is consistently the most complex and expensive part of the operational transition. The carved-out unit has been running on shared servers, a common ERP system, a single email domain, enterprise software licenses. All of it has to be replicated or replaced.
Disentangling an ERP system is the signature challenge. The parent’s instance contains years of transactional data for the departing unit, and migrating that data to a new platform requires meticulous mapping, multiple test cycles, and a cutover plan that doesn’t disrupt live operations. The new entity also needs its own network infrastructure, email domain, and cybersecurity environment.
Software licensing catches teams off guard more than almost any other IT issue. The parent’s enterprise agreements typically don’t transfer, and the new entity must negotiate its own — often at significantly higher per-seat costs because it lacks the parent’s volume. Identifying every application the unit depends on, and confirming the licensing status of each, has to happen early in planning. Discovering an unlicensed dependency two weeks before closing is a budget problem and a legal one.
Human Resources and Payroll
Transferring employees need clear, timely communication about compensation, benefits, reporting structure, and employment status. New benefit plans must be established and registered, which involves coordination with insurers and government agencies. The new entity needs its own payroll system, registered for tax withholding under its new EIN.6Internal Revenue Service. Employer Identification Number
Transferring employee records — performance history, health information, disciplinary files — must comply with applicable privacy regulations at the federal and state level.
Supply Chain and Procurement
The parent often holds enterprise-wide contracts with suppliers that offer volume discounts the carved-out entity can’t match on its own. Losing those economics is predictable. The question is how much of the gap can be closed through advance negotiation. New sourcing agreements with critical suppliers should be in motion well before closing, because a last-minute scramble signals desperation that suppliers will exploit.
Inventory transfers require a physical count reconciled against the parent’s ledger. This is where disputes over valuation and condition most commonly arise. Logistics — warehousing, transportation management, distribution routing — has to be separated or replaced. If the unit’s products currently ship from the parent’s distribution centers, a new logistics solution has to be operational on Day One.
Real Estate and Facilities
When the carved-out unit occupies space in a parent-owned building, a new lease or sublease must be executed with clearly defined terms for shared costs like utilities, maintenance, and security. If the unit occupies its own real estate that’s being transferred, the process requires updated appraisals, title searches, and environmental assessments.
Environmental due diligence is particularly important for industrial properties. A Phase I Environmental Site Assessment identifies potential contamination liabilities without actual soil or groundwater sampling. Under CERCLA, a buyer who skips this step can be held liable for remediation costs caused by a prior owner. The assessment serves as the required “all appropriate inquiry” that establishes an innocent landowner defense. If the Phase I identifies concerns, a Phase II assessment involving chemical analysis follows. The cost of environmental remediation can dwarf the value of the real estate itself.
Contract Novation and Assignment
Transferring customer and vendor contracts is one of the more labor-intensive legal tasks. Assignment transfers the parent’s rights under a contract to the new entity but typically doesn’t release the parent from its obligations. Novation substitutes the new entity for the parent entirely and requires the counterparty’s consent in virtually every case.
The contract review must flag every “change of control” clause that could give a counterparty the right to terminate on transfer. A dedicated legal team should prioritize novation of mission-critical contracts, because losing a top customer agreement or key supplier relationship post-closing can crater revenue or halt production. Some contracts contain anti-assignment clauses, and courts don’t always enforce them uniformly, so the review has to be contract-by-contract rather than categorical.
Running the Separation: The Carve-Out Management Office
A carve-out involves dozens of interdependent workstreams, and without centralized coordination the whole effort drifts. The Carve-Out Management Office functions as the nerve center. It defines roles, sets reporting lines, and tracks every deliverable against a master timeline. Typical staffing is a senior program manager with workstream leads from finance, IT, HR, legal, and operations.
The CMO’s first deliverable is a project charter that defines scope, budget, and measurable success criteria, and that specifies “Day One” requirements — the minimum capabilities the carved-out entity needs to function the moment the deal closes. Everything from payroll processing to customer order fulfillment has to work on Day One.
The CMO also mediates resource conflicts, which are inevitable. The parent’s IT staff, for example, are simultaneously running day-to-day operations and building a new environment for the departing entity. The CMO’s primary job is spotting delays early enough to act, because a missed milestone in IT separation can push the entire closing date.
Transition Service Agreements
A Transition Service Agreement is the bridge that keeps the lights on. Under a TSA, the parent provides temporary services to the carved-out entity after closing — finance and accounting support, IT help desk, payroll processing, or any other function the new entity isn’t ready to handle independently. The TSA buys time, but it’s expensive time, and every month on a TSA is a month the new entity isn’t fully standing on its own.
Scope, Pricing, and Duration
Each service must be defined with specificity: what exactly is being provided, at what service level, for how long, and at what cost. Vague service descriptions are the single most common source of TSA disputes. Duration typically runs six months to two years, with renewal and early termination clauses built in.
Pricing is usually cost-plus: the parent charges direct cost plus a markup covering administrative overhead. Negotiations should also address volume adjustments, because if usage spikes or drops without a mechanism to reprice, the parent can end up subsidizing the new entity or the new entity can end up overpaying for services it’s barely using.
Reverse TSAs
Sometimes the traffic flows both ways. A reverse TSA is an arrangement where the carved-out entity (or its buyer) provides services back to the parent after closing. It’s less common but arises when the departing unit housed a capability the parent still depends on, such as a specialized testing lab, a shared technology platform, or a regional distribution function. Reverse TSAs need the same rigor in scope and pricing as standard TSAs, but they often get less attention because the parent is focused on shedding the business rather than on what it’s losing.
Governance and Exit
A dedicated TSA manager on the carved-out entity’s side should track the parent’s adherence to agreed service levels weekly or monthly. Billing must be transparent, with detailed invoices that break down cost components. When disputes arise, the TSA should include a defined escalation matrix — service leads, then a TSA steering committee, then executive sponsors.
The most important part of any TSA is the exit plan, and it’s the part most teams underinvest in. For every service the parent provides, the carved-out entity needs a concrete plan to replace it with a permanent solution before the TSA expires. That means securing new vendor contracts, hiring and training staff, and implementing new systems, all while still relying on the parent’s support. Failing to exit on time typically triggers “tail-end” pricing significantly higher than the original rate, and the parent’s willingness to extend diminishes with each passing month. Exit work starts on Day One of the TSA, not six months in.
Stranded Costs
When a business unit departs, the parent doesn’t automatically shed the overhead that supported it. Corporate headquarters doesn’t shrink, IT infrastructure doesn’t right-size itself, and the shared service center doesn’t lay off staff proportionally on closing day. These residual expenses are stranded costs, and they’re one of the most underestimated financial risks of any divestiture.
Quantifying stranded costs early matters because they directly affect the parent’s post-transaction profitability. The analysis starts with the same allocation work done for the carve-out financials: every shared cost that was allocated to the departing unit needs examination to determine whether it actually goes away or just gets redistributed among the remaining businesses. A $2 million annual allocation for shared IT doesn’t disappear if the servers and staff are still there.
The parent’s plan for eliminating stranded costs — through headcount reductions, facility consolidation, contract renegotiation, or organizational restructuring — should be developed in parallel with the separation itself. Buyers sometimes negotiate for the parent to absorb a defined period of stranded costs as part of the deal terms, which means the parent’s finance team needs a credible estimate before the purchase agreement is signed. Underestimating stranded costs doesn’t just compress margins after closing; it can make the entire divestiture look value-destructive in hindsight.