Business Combination (Purchase Method)

The purchase method (now called the acquisition method under IFRS 3 and ASC 805) records a business combination as a purchase of assets and assumption of liabilities. The acquirer recognizes identifiable assets and liabilities at fair value as of the acquisition date, with any excess cost allocated to goodwill. This approach differs from the pooling-of-interests method (now prohibited) and creates a stepped-up asset basis that can drive future depreciation and amortization.

Transition from pooling-of-interests to purchase method

Before 2009, acquirers could choose between the purchase method and pooling-of-interests method. Pooling was attractive because it avoided goodwill creation and did not step up asset bases, reducing future depreciation and amortization charges. However, pooling ignored economic reality—the acquirer paid cash or issued stock to purchase the target; this payment should reflect in the balance sheet.

In 2009, standard-setters eliminated pooling. Now all acquisitions use the purchase method. This change increased reported goodwill and future impairment charges but created more transparent financial reporting.

Mechanics of the purchase method

The process is systematic. First, identify the acquisition date and the acquirer. The acquirer is the entity that obtains control. Second, determine the acquisition cost—the sum of cash paid, liabilities assumed, and fair value of equity issued. Third, recognize the target’s identifiable assets and liabilities at fair value as of acquisition date.

For example, suppose Company A acquires Company B for $100 million in cash. Company B’s balance sheet shows assets of $60 million (at book value) and liabilities of $10 million (book value). The identifiable assets are revalued: inventory now $65 million (was $30 million), PP&E now $70 million (was $20 million), and there is $8 million of intangible assets identified (customer relationships, trademarks). Liabilities remain at fair value: $10 million. Identifiable net assets total $133 million.

Goodwill is calculated as: Acquisition cost ($100M) minus fair value of identifiable net assets ($133M – $10M = $123M). This yields negative goodwill of -$23M, which under current standards must be recognized as a gain on acquisition (a rare but valuable outcome when the target is deeply distressed).

More commonly, acquisition cost exceeds fair value of identifiable net assets, creating positive goodwill. If Company A paid $150 million instead, goodwill would be $150M – $123M = $27M.

Identifying and valuing intangible assets

A critical step is identifying intangible assets separately from goodwill. Under the purchase method, the acquirer must value identifiable intangibles: customer relationships, patents, copyrights, trade names, software, and non-competition agreements. These are valued using income approaches—the present value of expected cash flows attributable to each intangible.

Intangible assets are amortized over their useful lives, typically 5–20 years. Goodwill, by contrast, is not amortized but tested for impairment annually (or more frequently if indicators suggest decline).

Identifying intangibles increases reported amortization and can reduce reported EBIT and earnings per share in post-acquisition years. Aggressive acquirers lobby valuers to minimize intangible asset recognition and push excess value into goodwill (which is not amortized, reducing future P&L drag).

Goodwill and subsequent impairment

Goodwill represents the premium paid for the target’s intangible qualities: brand strength, management team, growth potential, or synergies that cannot be separately identified. Under current standards, goodwill is not amortized. Instead, the acquirer tests it for impairment at least annually.

Goodwill impairment testing compares the fair value of the reporting unit (typically the acquired business) to the carrying value of assets (including goodwill) assigned to that unit. If fair value falls below carrying value, goodwill is written down. These impairment charges flow through income statements and can be material (sometimes in the hundreds of millions for large acquirers).

Goodwill impairment has become increasingly common. An acquirer that overpays—e.g., buys at peak valuation or overestimates synergies—will eventually record impairments, destroying shareholder value and damaging management credibility.

Transaction costs and recognition

Under the purchase method, transaction costs (legal fees, investment banker fees, severance for terminated employees) are expensed as incurred, not capitalized. This differs from some older practices where deal costs were bundled into acquisition costs. Modern standards require immediate expensing, which increases reported costs of the transaction.

Reverse acquisitions and control assessment

The purchase method requires identifying the acquirer—the entity that obtains control. In typical M&A, this is obvious. But in some transactions, especially reverse mergers, the legal acquirer may not be the accounting acquirer. If Company A (smaller) buys Company B (larger) by issuing so many shares to Company B shareholders that they gain effective control, Company B is the accounting acquirer despite being the legal target. The purchase method is applied with Company B as acquirer and Company A as target.

Contingent consideration and earnouts

If the acquisition agreement includes contingent payments (earnouts tied to future performance), the purchase method requires recognizing the fair value of contingent consideration as of acquisition date. If performance targets are met, the payment is made. If not, the contingency expires and may not be paid. This fair value estimate often proves inaccurate, leading to subsequent adjustments.

Comparison to pooling method (historical context)

Under the (now-prohibited) pooling-of-interests method, the acquirer combined the target’s historical book values. No step-up in asset basis occurred. No goodwill was created (unless unavoidable). The combined balance sheet looked like two companies’ statements were merged as-is. This produced cleaner historical comparability but masked the economic substance of the transaction.

Eliminating pooling increased financial reporting transparency and goodwill recognition, but also increased earnings volatility (due to future impairments) and reduced reported profitability in acquisition-heavy industries.