IFRS 3 Business Combinations: Summary, Practice Questions & Decision Tree

Every business combination is accounted for by one method — acquisition accounting (IFRS 3.4–5). Step one: identify the acquirer, the entity that obtains control under IFRS 10's control definition; in share-for-share deals the legal acquirer is not always the accounting acquirer. Step two: determine the acquisition date — the date control passes, usually completion, which fixes every fair value in the exercise (IFRS 3.8–9). Step three: recognise and measure the identifiable assets acquired, liabilities assumed and any non-controlling interest. Step four: recognise goodwill or, rarely, a bargain purchase gain.

At the acquisition date the acquirer recognises the acquiree's identifiable assets and liabilities at fair value — regardless of what the acquiree's own books showed (IFRS 3.10, 18). This is where hidden value surfaces: internally generated brands, customer relationships and in-process R&D that the acquiree could never recognise itself become separately recognised intangibles if they are separable or arise from contractual or legal rights (IFRS 3.B31–B34). Contingent liabilities of the acquiree are recognised at fair value if they stem from a present obligation and can be measured reliably — a lower hurdle than IAS 37 applies outside a combination (IFRS 3.23). A few items get exceptions from fair value: deferred tax (IAS 12 values), employee benefits (IAS 19), and share-based payment awards (IFRS 2).

Consideration transferred is measured at fair value: cash, other assets, equity instruments issued, and any contingent consideration — earn-outs payable on hitting profit targets, milestone payments — measured at its acquisition-date fair value even though payment is uncertain (IFRS 3.37, 39). What happens later depends on the earn-out's classification: if it is a liability (cash-settled), subsequent fair value changes go through profit or loss; if it is equity-classified (a fixed number of shares), it is never remeasured (IFRS 3.58). Acquisition-related costs — advisers, lawyers, due diligence — are expensed as incurred, never added to goodwill; costs of issuing shares or debt follow IAS 32/IFRS 9 instead (IFRS 3.53).

When less than 100% is acquired, IFRS 3 offers a choice, transaction by transaction, for measuring non-controlling interest (IFRS 3.19): at fair value (the full goodwill method — goodwill is recognised for the whole business, including the NCI's share), or at the NCI's proportionate share of the identifiable net assets (the partial goodwill method — goodwill reflects only the parent's stake). The choice changes both NCI and goodwill by the same amount, and it changes how a later impairment of goodwill is shared. Goodwill itself is not amortised; it sits in the acquirer's consolidated balance sheet and is tested for impairment annually under IAS 36.

If the fair value of the identifiable net assets exceeds the consideration plus NCI, the standard is suspicious by design: before recognising anything, the acquirer must reassess whether all assets and liabilities were correctly identified and remeasure the inputs (IFRS 3.36). Only after that re-check survives is the excess recognised as a bargain purchase gain in profit or loss on the acquisition date (IFRS 3.34) — negative goodwill never sits on the balance sheet. Genuine bargains do happen: distressed sellers, forced disposals, regulatory-pressured sales.

The measurement period gives the acquirer up to 12 months to finalise provisional fair values, with adjustments made retrospectively against goodwill as if known at acquisition (IFRS 3.45–49). Beyond that window, corrections are errors under IAS 8. Step acquisitions have their own rule: a previously held equity interest is remeasured to fair value at the date control is obtained, with the gain or loss in profit or loss (IFRS 3.42) — control is treated as giving up the old investment and acquiring a new subsidiary.