Carve-Out Financials in Divestitures: What Buyers and Sellers Often Miss

Carve-out activity is rebounding across the M&A and private equity markets, but roughly one-third of deals fail to deliver the value initially expected. This report explores why carve-out financials can misrepresent true standalone economics, highlighting six recurring risk areas and key considerations for buyers and sellers.

As divestiture activity accelerates across corporate and private equity portfolios, carve-out transactions have become an increasingly important segment of the M&A market, allowing sellers to sharpen strategic focus and allowing buyers, particularly private equity sponsors, to acquire businesses with meaningful upside potential. However, valuing and diligencing a carve-out requires a fundamentally different approach from a standard acquisition target, because the financial statements at the center of the transaction were never produced by a standalone business reporting its own results.

Carve-out financials as a distinct diligence challenge

Carve-out financial statements present a unique diligence challenge. Unlike a normal acquisition target, which has reported its own results for years and been tested by the discipline of standing on its own balance sheet, a carved-out business unit has typically never operated independently. Its historical financials are reconstructed from the parent company's consolidated books, with shared costs such as information technology, human resources, treasury, insurance, and corporate overhead allocated down using formulas based on revenue share, headcount share, or similar proxies. Even where audited historical financial statements exist for the carve-out, they may be difficult to evaluate properly, since the parent company's business model and operating footprint may not match the carved-out unit's own. This distinction matters commercially. McKinsey research published in 2025 found that roughly one-third of carve-out deals fail to deliver the value initially ascribed to them at signing. At the same time, deal volumes are rising: carve-outs totaled approximately USD 25 billion across 145 deals in the first half of 2025, up from USD 19 billion and 127 deals over the same period in 2024.

Carve-out and divestiture activity as a share of overall private equity buyouts has also moved significantly over the past decade. In the United States, carve-outs peaked at 15.8% of all PE buyouts in 2013, declined over the following eight years to an all-time low of 5.7% in the fourth quarter of 2021, and have since rebounded to 10.1% of all US PE buyouts in the fourth quarter of 2025. In Europe, corporate carve-outs accounted for approximately one in ten PE deals in 2025, reaching record levels by deal count.

Most of the value erosion observed in carve-out transactions does not stem from errors or oversights by either party. It is the result of both buyer and seller negotiating off a set of numbers that were never designed to predict what the business will actually cost once it stands on its own.

Why carve-out financials carry structurally higher risk?

Three mechanical features distinguish carve-out financials from a normal target, and together they explain why the same blind spots recur across deal after deal in this category.

• No audit trail of standalone existence: A normal acquisition target has paid its own expenses, managed its own working capital, and been tested by the reality of independent operations for years. A carved-out business unit has never paid its own bills separately. Nobody on either side of the table actually knows the independent costs until it has been built.
• Allocations are formulas, not facts: If shared information technology cost is allocated to the carve-out by headcount, but the unit's employees use IT more intensively than the rest of the company (for example they run expensive engineering or analytics software), then the allocated figure systematically understates the unit's true cost. This single mismatch between allocation methodology and actual consumption is responsible for a meaningful share of the cost surprises that surface after close.
• The seller's financial reporting incentives do not align with predictive accuracy: The carve-out financials were built to support a sale process, not to forecast standalone cost with precision. This is rarely a matter of deliberate misrepresentation. It simply means that nobody on the seller's finance team is rewarded for identifying every cost the buyer will eventually inherit.

Where the allocation breaks down? Six recurring blind spots

Across financial due diligence and valuation engagements, six categories account for most of the gap between a carve-out's reported financials and its true standalone economics. Each blind spot follows a similar pattern: a reported figure that looks complete, a structural reason that figure cannot be trusted, and a materially different cost once the business is actually separated.

Stranded costs: The carve-out financials typically show an allocated share of parent overhead, covering shared information technology, human resources, finance, and insurance functions, usually apportioned by revenue or headcount percentage. This allocation generally assumes that the parent's overhead shrinks proportionally once the unit is divested, which is rarely true. Shared IT systems and centralized functions carry substantial fixed costs that do not shrink simply because one division has left. Research has found that it often takes up to three years for the parent company to recover from stranded costs, leaving it with substantially lower profit margins during this period.

Working capital normalization: Historical working capital in the carve-out balance sheet reflects an arrangement that will not exist after close. The unit never managed its own cash, receivables, or payables independently. The parent ran centralized cash pooling and negotiated supplier terms at group scale, terms the standalone business is unlikely to retain as a smaller, less powerful customer. The working capital target is consistently one of the most contentious economic terms in a carve-out purchase agreement, both because of the methodological complexity of computing a normalized figure for a business that has never managed its own working capital, and because the buyer and seller have structurally divergent incentives in how that figure is calculated.

Customer and supplier contract transferability: Reported revenue and cost figures generally assume that all existing contracts simply continue after close. In practice, many contracts are signed by the parent legal entity rather than the business unit itself, and may include change-of-control clauses requiring counterparty consent to transfer. The long-term success of a carve-out is directly correlated with the staying power of its customers and revenue, and separating those relationships from a larger parent without understanding how they were originally secured can lead to customer attrition and churn that the reported revenue figures never anticipated.

Transitional service agreements: In most cases, no cost for transitional service agreements, or TSAs, appears anywhere in the carve-out's reported financials. The cost is footnoted at best, not built into the P&L, even though it represents a real and recurring cash obligation the buyer will pay the seller for months or sometimes years after close. Common risks include incomplete scopes, unclear charging and exit mechanisms, and a lack of internal buyer capability to replace TSA-provided functions on the originally planned timeline. As a general benchmark, finance and HR TSAs should typically target exit within two to four months, while IT TSAs should avoid running longer than six to nine months, though actual timelines depend on industry and the degree of operational entanglement.

Tax attributes: Historical tax expense in the carve-out financials is allocated within the parent's consolidated tax return, but loss carryforwards, credits, and certain elections frequently belong to the legal entity rather than the business unit, and may not transfer at all depending on how the deal is structured. Fiscal regime differences compound the issue across jurisdictions. In many European countries, gains on the sale of business units are partly exempt from corporate income and withholding tax, while in the United States, capital gains from divestitures are often taxable unless the unit is spun off and meets specific structural requirements, which is one reason executives may prefer different transaction types depending on the fiscal regime involved. 

Employee liabilities: Reported employee cost is typically an allocated headcount figure, often without full visibility into benefit plans, pension obligations, or incentive structures, which are usually designed at the parent level rather than the business-unit level. Unwinding shared incentive plans, pension schemes, and legacy equity grants for transferring employees can trigger unforeseen tax consequences, and careful review of plan documentation is needed to avoid management or transferring employees being financially worse off as a result of the separation.

What this means for sellers and buyers?

Conclusion

Carve-out financials sit at the intersection of accounting convention, allocation methodology, and operational reality, and valuing them well requires reconciling all three rather than treating the reported figures as a finished historical record. Their economic value to a buyer is shaped less by what the parent's books say and more by how effectively stranded costs, working capital, contract transferability, transitional service obligations, tax attributes, and employee liabilities are identified and priced before signing.

As carve-out activity continues to grow as a share of global M&A and private equity deal flow, the gap between a business's reported financials and its true standalone economics is likely to remain one of the most consequential, and most underpriced, sources of value creation or value destruction in the asset class.