Non-Controlling Interest - Proportionate (Partial Goodwill) Method (IFRS Alternative)
Measuring NCI at the proportionate share of the subsidiary's identifiable net assets — the IFRS 3 default/benchmark method — which results in lower goodwill than the full goodwill method.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Net Assets of Subsidiary (FV — 100%) | Asset (+) Net | 148,000,000.00 | - |
| Goodwill (Partial — Only Parent's Share of Excess) | Asset (+) | 38,400,000.00 | - |
| Investment in Subsidiary (80% Consideration Paid) | Asset (-) | - | 168,000,000.00 |
| Non-Controlling Interest (20% × FV Net Assets = $29.6M) | Equity (+) | - | 18,400,000.00 |
💡 Accountant's Note
Under the partial goodwill (proportionate) method: NCI = 20% × FV of net identifiable assets of the subsidiary (not 20% × 100% FV of the whole business). Goodwill = Consideration paid − (Parent's % × FV of net assets) = $168M − (80% × $148M) = $168M − $118.4M = $49.6M (only the parent's share of goodwill). Compare to full goodwill: $62M goodwill and $42M NCI. Partial goodwill: $49.6M goodwill and $29.6M NCI. The difference: $12.4M less goodwill, $12.4M less NCI equity. This method is ONLY permitted under IFRS (not US GAAP). The choice is made transaction-by-transaction under IFRS 3. For IFRS impairment: only the parent's share of goodwill is tested — goodwill impairment cannot be grossed up to include the NCI's unrecognized share.
Practitioner & Systems Framework
💻 ERP Architecture
For IFRS preparers: document the NCI measurement policy choice for each acquisition (full goodwill vs. partial). Once elected for a transaction, the method is locked for that acquisition. The goodwill impairment test under partial goodwill must adjust for the unrecognized NCI goodwill — the recoverable amount is compared to the carrying value including notional NCI goodwill, then the impairment is grossed up before being allocated to the parent.
⚠️ Audit Flags
IFRS auditors verify that the elected NCI measurement method is correctly applied and documented. Switching between methods (full vs. partial) across transactions is permitted but requires disclosure. The impairment test adjustment for partial goodwill is a common error — many preparers incorrectly compare carrying value (without NCI goodwill) to recoverable amount and record an understated impairment.
📄 Required Documentation
NCI measurement method election per acquisition, NCI calculation workpaper (proportionate × FV net assets), goodwill calculation under elected method, comparison to full goodwill for disclosure purposes (if desired), impairment test adjustment documentation.
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