goodwill
Suppose you buy a thriving little restaurant. You add up everything tangible and identifiable it owns — the ovens, the tables, the lease, even its recipes and brand name — and they are worth 400,000. Yet the owner asks 500,000, and you pay it gladly, because the restaurant has loyal regulars, a great location, and a sterling reputation that will keep customers coming. That extra 100,000 you paid, over and above the identifiable net assets, is goodwill: the price of the things that make the business worth more than the sum of its parts.
Goodwill is an intangible asset that arises only when one company buys another for more than the fair value of the acquired company's identifiable net assets (its identifiable assets minus its liabilities). Formally, goodwill = purchase price − fair value of identifiable net assets acquired. It represents unidentifiable value — reputation, customer loyalty, brand strength, skilled workforce, synergies — that cannot be sold or recorded separately. Crucially, goodwill is recorded only when it is purchased in an acquisition; a company cannot put its own homegrown goodwill on its books, no matter how beloved its brand. Once recorded, goodwill is not amortized; instead it is tested for impairment at least annually, and written down if the acquired business has lost value.
Goodwill matters because acquisitions are common and goodwill is often a huge line on the balance sheets of companies that grow by buying others. But it carries honest warnings. It is not a measure of how good a company is in general — only the premium paid in a past purchase. A large goodwill balance followed by a big impairment write-down is a classic signal that a company overpaid for an acquisition. And because goodwill cannot be sold on its own and rests on judgment about future benefit, many analysts mentally subtract it when assessing the hard, tangible value behind a company.
Company A buys Company B for 5 million. B's identifiable assets are worth 6 million at fair value and it owes 2 million in liabilities, so its identifiable net assets are 6 − 2 = 4 million. A paid 5 million, so goodwill = 5 − 4 = 1 million, recorded as an intangible asset on A's balance sheet and tested for impairment thereafter.
Goodwill is the premium paid in an acquisition above the fair value of identifiable net assets.
A company can never record goodwill for its own success — only goodwill bought in acquiring another business goes on the books. And goodwill is not amortized; a later impairment write-down often signals the acquirer simply overpaid.