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Purchase Price Allocation and the Opening Balance Sheet

After an acquisition closes, the buyer has to reassign every dollar paid across the fair value of everything it acquired — and whatever's left over, unexplained, becomes goodwill.

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Prerequisites: Reading a Balance Sheet, Goodwill and Intangible Assets

A buyer pays $800 million for a target company. The target's own balance sheet, built up under its own historical accounting, said its net assets were worth $300 million. The buyer didn't pay $300 million — it paid $800 million, presumably because it saw more value than the seller's books showed: a strong brand, valuable customer relationships, patents never capitalized on the seller's books, or expected synergies. Purchase price allocation is the process of figuring out, dollar for dollar, what that extra $500 million actually bought.

Purchase price allocation restates every asset and liability of the acquired company to fair value as of the acquisition date, identifies and values intangible assets the seller never put on its own books (like customer relationships or brand), and assigns whatever purchase price still isn't explained by any of that to goodwill — the plug that makes the accounting balance.

The waterfall

  1. Start with the purchase price — cash paid, stock issued, and any assumed debt or contingent consideration.
  2. Revalue identifiable tangible assets and liabilities to fair value. A factory carried at depreciated historical cost might be worth more or less at current market prices.
  3. Identify and value intangible assets the seller never recognized — customer relationships, trademarks, technology — each appraised separately and capitalized for the first time.
  4. Whatever's left over becomes goodwill — not a valued asset in its own right, but the residual representing synergies, assembled workforce, and everything else that doesn't meet the definition of an identifiable intangible.
Net tangible \$250m Intangibles \$150m Goodwill \$400m residual
\$250m tangible + \$150m newly recognized intangibles + \$400m goodwill = \$800m purchase price. Goodwill is whatever the first two steps don't explain.

Worked example

A buyer pays $800 million for a target. The target's identifiable net assets, revalued to fair value, are worth $250 million (up from $200 million on the seller's historical-cost books, reflecting appreciated real estate). An independent appraisal values previously unrecognized customer relationships and a trademark at a combined $150 million.

  1. Fair value of identifiable net assets plus new intangibles: 250+150=400250 + 150 = 400, i.e. $400 million.
  2. Goodwill: 800−400=400800 - 400 = 400, i.e. $400 million.

The acquirer's opening balance sheet now shows $250 million of tangible net assets, $150 million of newly capitalized intangibles (which will be amortized over their useful lives), and $400 million of goodwill (which won't be amortized, only tested for impairment).

What this means in practice

Purchase price allocation directly shapes post-deal earnings: the more of the price allocated to amortizable intangibles rather than goodwill, the more amortization drags on reported profit in future years, even though the cash was spent identically either way. Analysts check merger footnotes for the intangibles-versus-goodwill split to model the coming amortization schedule.

A large goodwill balance isn't inherently a red flag — it's a normal byproduct of paying for growth prospects and synergies that accounting rules don't let a target capitalize on its own books. The warning sign is goodwill that keeps growing acquisition after acquisition without ever generating the earnings growth that was supposed to justify it.

Related concepts

Practice in interviews

Market Making →Mental Math →

Further reading

  • FASB ASC 805, Business Combinations
  • Rosenbaum & Pearl, Investment Banking (ch. on merger models)
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