What are measurement-period adjustments under IFRS 3, and how do they differ from post-acquisition errors or estimate changes?
An advanced Group Accounting question — expect it in final rounds and case-heavy interviews (IB, PE, Big-4 Transaction Services).
THE SHORT ANSWER
After a business combination, the acquirer has a measurement period (up to 12 months from the acquisition date) to finalize the provisional accounting as it obtains better information about facts and circumstances that existed at the acquisition date. Measurement-period adjustments retrospectively adjust the provisional amounts — typically the fair values of assets/liabilities and the resulting goodwill — as if the accounting had been completed at the acquisition date (so goodwill moves, not P&L). The crucial distinction is timing and cause: an adjustment qualifies only if it reflects new information about conditions existing at acquisition, and only within the 12-month window. If the change reflects events after the acquisition date (e.g., a subsequent decline in a receivable's recoverability), or it's the correction of an error, or it's after the measurement period closes, it goes through profit or loss (or as a prior-period error restatement) — not against goodwill. So: existing-at-acquisition facts within 12 months → adjust goodwill; later events/errors → P&L.
WHAT INTERVIEWERS LISTEN FOR
- ✓Up to 12 months to finalize provisional acquisition accounting
- ✓Adjust for new info about facts existing at the acquisition date — retrospective, against goodwill
- ✓Post-acquisition events or errors → P&L, not goodwill
- ✓Distinction: existing-at-acquisition condition vs subsequent event
COMMON MISTAKES
- ✗Adjusting goodwill for post-acquisition events
- ✗Using the window beyond 12 months
- ✗Confusing estimate changes/errors with measurement-period adjustments
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