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    How PE-Backed Roll-Ups Handle IFRS Conversion and Purchase Price Accounting Across Multiple European Subsidiaries at Once

    June 15, 2026

    A PE-backed roll-up handles IFRS conversion and purchase price accounting across several European subsidiaries by setting one group accounting policy first, running each subsidiary’s conversion in parallel against that policy, and running the purchase price accounting (PPA) for each acquisition alongside the conversion rather than after it. Audit deadlines, acquisition dates and materiality decide which subsidiary goes first.

    The situation is common. A sponsor acquires a platform company, adds three or four bolt-ons within 18 months, and then needs consolidated IFRS or US GAAP financials for a lender, a secondary buyer or a US IPO. The finance function that managed one entity on local GAAP now handles four entities, several statutory frameworks, and acquisition accounting on top of the conversion work. This guide sets out how I structure that work.

    Why a roll-up cannot convert one subsidiary at a time

    The instinct is to convert the platform company first, then handle each acquisition separately. In practice, the timeline rarely allows for that. Lenders want audited financials. A new acquisition closes before the last conversion is finished. The finance team has limited capacity, and every workstream runs in parallel.

    The conversion has to be designed to handle multiple entities simultaneously, with a consistent methodology across all of them. That means agreeing on accounting policies before the entity-level work begins, not after.

    Step 1: Set the group accounting policy before entity-level work

    Before touching a single trial balance, the group needs a documented accounting policy under the target framework (IFRS or US GAAP). This covers:

    • Revenue recognition approach and elections
    • Lease accounting (IFRS 16 or ASC 842)
    • Goodwill and intangible asset treatment
    • Measurement of non-controlling interests where the sponsor buys less than 100% or sellers roll over equity (IFRS 3 allows fair value or the proportionate share of net identifiable assets, chosen for each acquisition; US GAAP requires fair value)
    • Intercompany elimination policies
    • Foreign currency translation policy

    Every subsidiary conversion then maps to this central policy. This prevents the situation where two entities are converted by two different people with inconsistent treatments that need to be reconciled at consolidation.

    Step 2: Decide which subsidiary to convert first

    Within the parallel plan, each entity still needs a priority. I rank them on four factors:

    • Audit deadline. Entities whose figures are needed for the earliest audited period go first.
    • Acquisition date. An earlier acquisition appears in more periods of the consolidated financial statements, and its PPA measurement period ends sooner.
    • Materiality. The entities with the largest share of group revenue, assets or adjustments drive the auditor’s scoping and carry the most risk.
    • Condition of the statutory accounts. An entity with clean, audited statutory accounts converts faster than one with open questions on its local GAAP figures.

    Step 3: Run entity conversions in parallel, not in series

    Each subsidiary gets its own GAAP conversion matrix: the chart of accounts mapped to the target framework, current treatment documented, differences identified, adjustments calculated. For a four-entity roll-up, this is four matrices running simultaneously.

    The matrices feed into a central consolidation workbook. Each adjustment column in the consolidation traces back to the relevant entity matrix. Auditors can follow the trail from the consolidated financial statements down to the entity-level support.

    For roll-ups spanning multiple statutory frameworks (for example, a UK platform with German, Dutch and Belgian subsidiaries), each entity starts from a different GAAP base. The adjustments differ by entity, but the target treatment is identical across all of them because the group policy was established first. For more on running several entities at once, see how to manage GAAP conversions for multiple subsidiaries across Europe.

    Step 4: Run purchase price accounting alongside the IFRS conversion

    Acquisition accounting under IFRS 3 or ASC 805 requires the identifiable assets acquired and liabilities assumed to be measured at fair value at the acquisition date, with specified exceptions. For a roll-up that has completed three acquisitions in 18 months, there are three PPA exercises to complete, each with its own measurement date. Each has a measurement period of up to 12 months from its acquisition date to finalise provisional amounts.

    The most common mistake is treating PPA as something that happens after the GAAP conversion is done. The two workstreams run in parallel. The PPA drives the opening balance sheet for each acquired entity, which feeds directly into the conversion workbook and then into consolidation. For the mechanics of a single deal, see how purchase price accounting works in a cross-border acquisition.

    Key areas requiring measurement in European tech and SaaS acquisitions:

    • Customer relationships (often the largest intangible asset)
    • Developed technology and IP
    • Non-compete agreements
    • Deferred revenue. Under IFRS 3, acquired deferred revenue is measured at fair value, which is often lower than the acquiree’s carrying amount. Under US GAAP, ASU 2021-08 requires acquired contract liabilities to be measured under ASC 606 as if the acquirer had originated the contracts (effective for public business entities for fiscal years beginning after 15 December 2022 and for all other entities after 15 December 2023), so the fair value write-down generally no longer applies.
    • Contingent consideration (earnouts are common in European PE deals), measured at fair value at the acquisition date and, where classified as a liability, remeasured at each reporting date through profit or loss

    Each of these requires a defensible valuation and documented assumptions. The finite-lived intangible assets also need amortisation schedules that run through the income statement in subsequent periods.

    Step 5: Keep local statutory books and upload IFRS trial balances

    Subsidiaries keep their local systems (DATEV in Germany, Sage in the UK, and so on) because statutory accounts and tax filings stay on local GAAP. Group reporting is produced as a layer on top:

    • Map each local chart of accounts to the group chart of accounts once, and maintain the mapping as accounts are added.
    • Hold the IFRS adjustments for each entity in its conversion workbook as recurring journal entries, so they can be rerun each period.
    • Upload the local trial balance plus the IFRS adjustments into the consolidation system (for example, NetSuite) as an IFRS trial balance for each entity.
    • Record the PPA adjustments (fair value step-ups, amortisation of acquired intangibles, deferred tax on those step-ups, and goodwill) at consolidation level, or push them down to the entity, and apply the same choice across the group.

    What auditors want to see in a roll-up conversion

    The group auditor reviewing a roll-up conversion wants a clear chain: from the statutory accounts, through the GAAP adjustments, to the consolidated financial statements. If the group is preparing for a US listing, that audit is performed under PCAOB standards. Auditors want the PPA documented with observable inputs where available and the group accounting policy applied consistently across entities.

    The documentation workload is significant. A four-entity roll-up with three acquisitions might have 12 to 15 discrete accounting positions that need memos or policy write-ups before the audit can begin.

    How to phase external advisor support across subsidiaries

    When several subsidiaries are in progress at once, I scope the work in fixed-fee phases, each with a defined deliverable and a natural stopping point:

    1. Group accounting policy and the conversion matrix for the platform company
    2. Conversion matrices for each acquired subsidiary, in the priority order from Step 2
    3. PPA support and the technical accounting memos for the significant positions
    4. Consolidation workbook and support through the audit

    Each phase gives the group a finished output it can use, and the team can decide at each stopping point whether to continue with external support or take the next phase in-house.

    Timeline for IFRS conversion and purchase price accounting across several entities

    A two-entity roll-up with straightforward structures can be converted in six to eight weeks if the statutory accounts are clean and the finance team is responsive. A four-entity roll-up with multiple statutory frameworks and active PPA work realistically takes three to five months for the first year, and less for subsequent periods once the policies and workbook structure are established.

    The earlier the conversion work starts, the more manageable the timeline. The worst position to be in is needing audited financials in eight weeks when the conversion has not started.

    If you are managing a European roll-up and approaching a transaction or audit that requires consolidated IFRS or US GAAP financials, book a strategy call to plan the sequence for your entities.