Private Equity FP&A: The First 100 Days After Close

The acquisition creates a new measurement period, but where the inherited reporting does not provide a suitable baseline, the portfolio company enters ownership without a financial reference capable of separating inherited performance from post-close value creation.

After close, historical financial statements may become less comparable with the economics under sponsor ownership when transaction effects are material. New leverage changes cash requirements, interest expense, debt-service capacity, and debt ratios, while management incentives can alter compensation and carve-outs can introduce standalone costs absent from the historical P&L. Expected synergies remain part of the investment case until their financial effect is realized and measured against the baseline. Rolling historical reporting forward without separating these changes leaves the board comparing post-close performance with a business that no longer reflects the same economics.

Baseline reconstruction also competes with opening balance sheet work, lender reporting, audit requirements, and other transaction demands during the first months of ownership. When that work is deferred, early movements in pricing, volume, labor, or cost reduction can become entangled with transaction effects that enter EBITDA. A later margin improvement may then contain both operating performance and effects that have simply rolled off since close, weakening the sponsor's ability to attribute the change and assess management's execution of the value-creation plan.

Evaluating first-year performance requires three separate financial references: historical actuals, the reconstructed operating baseline, and the investment-case plan. Historical actuals establish pre-close performance, while the post-close baseline reconciles transaction and ownership effects that enter EBITDA, standalone cost changes, and operating decisions already affecting the run-rate. The investment case records the expected future economics, allowing actual performance to be measured against both the starting position and the sponsor’s expectations. This separation also establishes the forecast ownership needed to connect reported results with the investment thesis.

When the baseline is absorbed into the budget assumptions embedded in the investment case, the comparison point loses its independence. The baseline establishes the starting economics; the investment case establishes the expected future economics; actual performance is reconciled against both, with driver attribution used to separate inherited performance, transaction effects, and post-close operating change.

Baseline integrity determines whether later EBITDA movement can be reconciled to inherited performance, transaction effects that enter EBITDA, and post-close operating change. When the starting point is poorly constructed, historical artifacts and new initiatives become mixed together, leaving the board to evaluate performance through estimates rather than a stable financial reference.

Maintaining historical actuals, the post-close baseline, and the investment case as separate references gives the business the comparison points needed to attribute performance to identified drivers. Where that separation breaks down, reported EBITDA improvement can no longer be reliably distinguished across market conditions, accounting effects, and management actions, weakening the finance function’s ability to determine whether actual performance supports the investment thesis as the hold period progresses.