Business Combinations — ASC 805 vs IFRS 3

ASC 805 (US GAAP) and IFRS 3 (IFRS) are largely converged: both apply the acquisition method, measuring identifiable assets acquired and liabilities assumed at fair value at the acquisition date. The headline difference is how the non-controlling interest — and therefore goodwill — is measured.

• Identify the acquirer and the acquisition date.
• Recognize and measure identifiable assets acquired, liabilities assumed, and any non-controlling interest (NCI).
• Recognize goodwill (or a bargain-purchase gain) as the residual.

Area	US GAAP (ASC 805)	IFRS (IFRS 3)
NCI / goodwill	NCI at fair value → full goodwill	Choice per combination: NCI at fair value (full goodwill) or at the proportionate share of identifiable net assets (partial goodwill)
Contingent consideration	Remeasured through earnings (if a liability)	Broadly aligned, with some classification nuances
Measurement period	Up to one year	Up to one year

• Identifying the acquirer (especially reverse acquisitions).
• Fair value of identifiable intangibles acquired.
• NCI measurement election (IFRS) and its goodwill effect.
• Contingent consideration classification and remeasurement.

• SAP implementation: SAP Group Reporting (consolidation) — purchase accounting, NCI, goodwill. Write-up forthcoming under SAP & Enterprise Systems. See also Goodwill.

An educational reference and original synthesis — not investment advice, and not a substitute for the standard or for professional accounting guidance. For authoritative measurement detail, consult ASC 805 / IFRS 3 directly.