Goodwill is often one of the largest and least directly observable assets on an acquisition balance sheet. It can remain on the books for years while the acquired business evolves, customer relationships change, expected synergies take longer to realize, and market conditions move. For financial controllers, the challenge is to identify when those changes require an impairment assessment—and to apply the correct accounting model for each reporting framework.
A multinational group may prepare consolidated financial statements under US GAAP, IFRS, and Canadian Accounting Standards for Private Enterprises (ASPE) for different reporting entities or stakeholders. Goodwill impairment is an area where the models are not interchangeable. The frequency of testing, unit of account, measurement approach, and impairment calculation differ. A single valuation file may support several analyses, but it cannot automatically serve as the accounting conclusion for all three frameworks.
Start with the acquisition accounting trail
Goodwill generally arises in a business combination when the consideration transferred and other relevant acquisition-date amounts exceed the fair value of identifiable net assets acquired, subject to the applicable standard’s detailed requirements. The controller should preserve the purchase price allocation, valuation reports, acquisition model, identified intangible assets, deferred tax calculations, and the rationale for assigning goodwill to the relevant operating components.
This acquisition-date record is not just historical support. It helps establish which business or reporting unit benefits from the acquired goodwill, what assumptions supported the purchase price, and whether subsequent reorganizations have changed the appropriate testing level. If the business is integrated into existing operations, the accounting team should document how goodwill is assigned and monitored under the applicable framework rather than simply retaining the original legal-entity allocation.
Three frameworks, three impairment approaches
US GAAP: annual testing at the reporting-unit level
Under ASC 350, goodwill is not amortized and is tested for impairment at least annually at the reporting-unit level, and between annual tests when triggering events indicate that it is more likely than not that the reporting unit’s fair value has fallen below its carrying amount. An entity may first perform a qualitative assessment to determine whether a quantitative test is necessary.
The quantitative test compares the reporting unit’s fair value with its carrying amount, including goodwill. If carrying amount exceeds fair value, the impairment loss is generally the excess, limited to the goodwill allocated to that reporting unit. The current US GAAP model is a one-step comparison; do not rely on older explanations of the former two-step goodwill test. See the technical discussion of ASC 350-20 goodwill accounting and the US GAAP and IFRS comparison.
IFRS: annual testing of cash-generating units
IAS 36 requires goodwill acquired in a business combination to be tested for impairment annually and whenever there is an indication of impairment. Goodwill is allocated to the cash-generating unit (CGU), or group of CGUs, expected to benefit from the combination’s synergies, subject to the standard’s allocation requirements.
The CGU’s carrying amount is compared with its recoverable amount. Recoverable amount is the higher of fair value less costs of disposal and value in use. If carrying amount exceeds recoverable amount, the impairment loss is allocated first to goodwill and then, subject to IAS 36 limits, to other assets in the CGU. A goodwill impairment loss is not reversed in a later period. The IFRS Foundation’s IAS 36 overview summarizes these requirements.
Canadian ASPE: impairment testing when indicators arise
For entities applying Canadian ASPE, Section 3064 addresses goodwill and intangible assets. Goodwill is not amortized. It is tested for impairment when events or changes in circumstances indicate that the carrying amount of the reporting unit to which goodwill is assigned may exceed its fair value. When the reporting unit’s carrying amount exceeds fair value, an impairment loss is recognized for the excess, limited to the carrying amount of goodwill. A goodwill impairment loss is not reversed.
This event-driven testing trigger differs from the mandatory annual goodwill testing under US GAAP and IFRS. A Canadian private enterprise should not automatically adopt the US or IFRS annual-test timetable as though it were the ASPE requirement. It should, however, maintain a disciplined process to identify and document impairment indicators. See this BDO Canada overview of ASPE impairment of long-lived assets and goodwill.
A controller’s comparison table
| Area | US GAAP | IFRS | Canadian ASPE |
|---|---|---|---|
| Goodwill amortization | Not amortized | Not amortized | Not amortized |
| Testing trigger | At least annually and on triggering events | At least annually and on impairment indicators | When events or changes indicate possible impairment |
| Testing level | Reporting unit | CGU or group of CGUs | Reporting unit |
| Measurement comparison | Reporting-unit fair value vs. carrying amount | CGU recoverable amount vs. carrying amount | Reporting-unit fair value vs. carrying amount |
| Loss limitation | Limited to goodwill allocated to reporting unit | Allocated first to goodwill, then other CGU assets subject to IAS 36 floors | Limited to goodwill assigned to reporting unit |
| Reversal of goodwill impairment | Not permitted | Not permitted | Not permitted |
The table is a high-level orientation, not a substitute for the detailed requirements and definitions in the applicable accounting literature. In particular, the definition and boundaries of a US reporting unit, an IFRS CGU, and an ASPE reporting unit should be assessed independently.
Build a repeatable impairment-indicator process
Even where annual testing is not required, controllers need a process that captures adverse developments promptly. A quarterly or monthly close can include a short indicator review, with a deeper technical assessment when a trigger is identified. The process should draw on information from finance, operations, strategy, legal, and commercial teams.
- Operating performance: sustained revenue or margin shortfalls, lost major customers, lower production volumes, or persistent cash-flow underperformance against the acquisition case.
- Market conditions: adverse changes in market multiples, discount rates, commodity prices, interest rates, foreign exchange, or competitive conditions.
- Business changes: restructuring, plant closures, product discontinuation, loss of key personnel, changes in strategy, or plans to dispose of a business.
- Legal and regulatory matters: litigation, regulatory changes, contract losses, or restrictions that affect expected cash flows.
- Acquisition assumptions: synergies delayed or abandoned, integration costs above plan, customer attrition, or forecast assumptions no longer supported by current evidence.
- Market capitalization and financing: for listed groups, a sustained decline in market capitalization relative to net assets can be a signal requiring analysis; financing stress may also affect forecasts and discount rates.
Six controls for a defensible goodwill impairment file
1. Reconcile goodwill to the general ledger
Reconcile the goodwill subledger and acquisition records to the trial balance and consolidation system. Explain additions, disposals, foreign-currency movements, purchase price adjustments, and transfers between reporting units or CGUs. Confirm that the population tested agrees to the recorded balance.
2. Approve the testing unit and allocation
Document the reporting-unit or CGU structure, the business activities included, the goodwill allocation, and the rationale for any changes. Have corporate accounting and the relevant business leader review the allocation. A reorganization should trigger a documented reassessment, not an automatic carry-forward of last year’s structure.
3. Challenge the forecast against actual performance
Compare prior forecasts with actual results and explain significant misses. Tie the forecast to the approved operating plan, with explicit support for revenue growth, margins, capital expenditure, working capital, and terminal assumptions. Do not use an acquisition business case that has not been refreshed for current conditions.
4. Independently review valuation assumptions
Challenge discount rates, growth rates, market multiples, forecast periods, and terminal values. Check that assumptions are internally consistent and that risks are not counted twice—for example, once in forecast cash flows and again in the discount rate. For IFRS, document both value-in-use and fair-value-less-costs-of-disposal considerations where relevant to determining the higher recoverable amount.
5. Test sensitivity and headroom
Show the amount by which fair value or recoverable amount exceeds carrying amount, where applicable, and quantify reasonably possible changes in key assumptions that could eliminate that headroom. Sensitivity analysis does not replace the prescribed impairment test, but it helps management understand how close the business is to a potential impairment and which assumptions matter most.
6. Control the journal entry and disclosures
Route proposed impairment entries through technical accounting review and appropriate approval. Reconcile the entry to the valuation model, verify the correct reporting unit or CGU and period, assess related deferred tax consequences, and prepare framework-specific disclosures. Retain the signed conclusion, model version, source data, review notes, and approval evidence.
Watch the IFRS standard-setting project—but do not book a proposal
The IASB’s Business Combinations—Disclosures, Goodwill and Impairment project includes proposed changes to IFRS 3 disclosures and the IAS 36 impairment test for CGUs containing goodwill. The IFRS Foundation’s project page reports that the IASB was still redeliberating the proposals following its September 2026 meeting. An exposure draft or tentative board decision is not, by itself, an effective amendment to IAS 36. Controllers should monitor the project and assess changes only when final requirements are issued with applicable effective dates.
See the IFRS Foundation project status and September 2026 update for the current standard-setting position.
Conclusion: one valuation process, framework-specific conclusions
A robust goodwill impairment process starts with reliable acquisition records, clear testing-unit assignments, timely indicator monitoring, supportable forecasts, and independent challenge of valuation assumptions. Multinationals can coordinate data collection and valuation work across subsidiaries, but should maintain separate accounting conclusions for ASC 350, IAS 36, and ASPE Section 3064. That distinction helps prevent missed triggers, incorrect testing frequency, and unsupported cross-framework adjustments.
Disclaimer: This article is for general informational and educational purposes only. It is not accounting, audit, valuation, legal, or tax advice. The applicable accounting framework, facts, materiality, and reporting circumstances should be assessed with qualified professional advisers.
