Step acquisitions: separate remeasurement from deal value
A step acquisition combines a new purchase with a change in how an existing holding is measured. The announcement’s “total deal value” can therefore differ from cash paid in the current transaction. A useful research bridge keeps the old carrying amount, its acquisition-date fair value, the new consideration, and the identifiable net assets in separate columns.
This guide assumes an Australian for-profit acquirer applying the AASB 3 December 2022 compilation in a 2025 annual period. That compilation lists reporting periods beginning on or after January 1, 2023 and before July 1, 2026. Common-control combinations and other scope exclusions are outside the exercise. Confirm the acquired set is a business before using the business-combination method.
Locate the control event
The accounting trigger is obtaining control, not simply paying another installment or crossing a headline share percentage. Establish the acquisition date and the substantive rights that changed. A signed contract with outstanding completion conditions may not identify the same date as the later control transfer.
AASB 3 paragraphs 41–42 address business combinations achieved in stages, including acquisition-date remeasurement of a previously held equity interest and the treatment of historical OCI by reference to a direct disposal. Paragraph 32 provides the goodwill calculation framework.
For the main example, assume the investor previously held a 30% associate accounted for using the equity method. It did not control the business. A subsequent purchase of the remaining 70% gives it control and full ownership at a documented completion date. Assume a conventional transaction in which the remeasurement difference goes to profit. There are no NCI, historical OCI balances, fees, taxes, contingent payments, or separate transactions.
Build the four-input bridge
All amounts are hypothetical thousands of currency units. Immediately before control is obtained, the old 30% holding has a carrying amount of 60 and an acquisition-date fair value of 90. The acquirer pays 180 in cash for the remaining 70%. Acquisition-date identifiable net assets, after the recognition and measurement required for this example, are 240.
| Input or result | Calculation | Amount |
|---|---|---|
| Old investment carrying amount | Pre-control investment record | 60 |
| Old investment fair value | Acquisition-date valuation | 90 |
| Remeasurement gain | 90 − 60 | 30 |
| New cash consideration | Payment for remaining 70% | 180 |
| Goodwill measurement total | 90 + 180 | 270 |
| Identifiable net assets | Acquisition-date basis | 240 |
| Goodwill | 270 − 240 | 30 |
Two results happen to equal 30: the remeasurement gain and goodwill. They arise from different comparisons. The first compares two values of the old holding. The second compares the acquisition measurement total with identifiable net assets. Equal amounts do not make them the same transaction or permit one to be netted against the other.
The current cash payment is 180. The 90 old holding is not another current cash outflow. Historical cash originally spent to obtain that holding belongs to its own earlier period; its carrying amount of 60 need not equal that original cost because equity-method income, distributions and other changes may have intervened.
Prove the consolidated balance effect
In the simplified bridge, the old investment increases from 60 to 90, producing a gain of 30. The business-combination consolidation then replaces the 90 investment and 180 consideration with identifiable net assets of 240 and goodwill of 30.
The net change in consolidated net assets from these entries is:
Net assets added 240 + goodwill 30 − cash paid 180 − old investment removed 60 = 30.
That equals the assumed profit gain of 30. The identity helps detect double counting: keeping the old investment of 90 as a separate asset while also consolidating 100% of the acquired assets would overstate assets.
It also exposes a common cash error. Subtracting both 180 and 90 as current cash would create an artificial extra outflow of 90. Conversely, recognizing only the newly purchased 70% of assets would omit assets now controlled and consolidated in this full-ownership example.
This is a net-asset teaching bridge. A real consolidation needs the acquired assets and assumed liabilities individually recognized, applicable measurement exceptions considered, intercompany balances eliminated, and taxes analyzed. Public researchers should not turn the identity into an assertion that they possess the full acquisition journal.
Do not infer old-stake value from the new price
The implied per-percentage-point value of the 70% purchase is not necessarily the fair value of the previous 30%. Multiplying 180 by 30/70 produces about 77.143, not the assumed 90. That difference calls for valuation evidence, not automatic rejection of the example.
Control rights, the exact instruments purchased, transaction-specific arrangements and other valuation facts can affect the comparison. At the same time, “control premium” is not a sufficient explanation for every unexplained number. Record the company’s disclosed valuation approach and the rights of both holdings.
As a sensitivity, replacing the assumed old-stake fair value of 90 with 80, while retaining every other stated input, reduces the gain to 20 and goodwill to 20. Cash remains 180. This isolates which accounting outputs depend on the old holding’s valuation. It does not establish that 80 is the correct estimate.
If the issuer discloses only the combined 270 measurement total, the researcher can infer a residual old-stake value only after confirming there are no NCI, noncash consideration, contingent payments or separate elements. Otherwise the residual is underidentified.
Boundaries that change the accounting route
Consider a separate transaction in which ownership increases from 30% to 45% and, after a rights assessment, the investor still does not control the business. The control-event bridge above does not apply merely because another stake was purchased. The applicable investment accounting must be assessed instead; no new business-combination goodwill formula is justified by that fact alone.
At the opposite boundary, if the investor already controlled the subsidiary before buying more shares, the transaction is not the first control acquisition assumed here. A retained-control equity transaction follows a different route and does not automatically remeasure the old stake through profit.
Historical OCI is another distinct issue. Paragraph 42 refers to the basis that would apply on direct disposal of the old interest. Some underlying items may require reclassification, while others permit or require a transfer within equity. Do not send every accumulated OCI amount through profit under the generic label “step-acquisition gain.”
For example, an acquisition note might report a 30 fair-value remeasurement and a separate historical reserve adjustment. Retain separate rows and identify the reserve’s origin before adding them to an earnings adjustment. The main example excludes OCI precisely so its gain can be reproduced without assuming a recycling rule for an unspecified reserve.
Use a transaction-specific evidence file
| Source object | What to extract | Main control |
|---|---|---|
| Prior investment note | Carrying amount and measurement category | Same holding immediately before control |
| Completion and control disclosure | Date and rights transferred | Acquisition date supported |
| Valuation disclosure | Old holding fair value and method | Distinct from new price |
| Consideration schedule | Cash, shares, contingent and separate elements | Current cash identified |
| Acquisition allocation | Identifiable assets, liabilities and goodwill | Same acquisition-date basis |
| Profit and OCI notes | Remeasurement and reserve effects | Avoid mixing different gains |
For a cash-flow comparison, also obtain acquired cash and the group’s transaction-specific cash disclosure. The 180 here is gross new cash consideration, not a claim about a net cash-flow line after acquired cash or about every possible payment associated with the deal.
Public annual reports may provide enough inputs to reconstruct this bridge. Full valuations, purchase agreements, fair-value models and pre-control ledgers often remain private. State which inputs are issuer-reported and which are independently recalculated. Arithmetic consistency does not verify the underlying fair values.
If the bridge fails, first compare dates and scope, then currency, taxes, NCI, contingent consideration and separate transactions. A provisional acquisition allocation may later change as additional acquisition-date information becomes available. Record the revised numbers and their stated basis rather than silently treating them as post-acquisition operating performance.
Update the conclusion when control timing changes, the old interest valuation is corrected, previously undisclosed OCI is identified, or the acquisition allocation is revised. Preserve cash consideration independently so that a valuation update cannot accidentally rewrite the amount actually paid.
Test the old carrying basis independently
Keep old-stake fair value at 90, new cash at 180 and identifiable net assets at 240, but suppose verified pre-control carrying value is 70 rather than 60. The remeasurement gain becomes 20; goodwill remains 30 and current cash remains 180. The consolidated identity becomes 240 + 30 − 180 − 70 = 20.
This sensitivity isolates the historical investment basis. It differs from changing old-stake fair value, which affected both gain and goodwill above. A researcher should therefore investigate a carrying-value discrepancy in the pre-control investment roll-forward rather than automatically altering the acquisition valuation.
FAQ
Is 270 the cash paid in the current purchase?
No. In this example it includes the old holding’s fair value of 90 and new cash of 180.
Can the old holding’s gain be called goodwill income?
No. The remeasurement gain and goodwill use different inputs and have different accounting roles.