1. Define the board question
Connect transaction price, recognised goodwill, promised synergies, capital allocation and impairment exposure.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a board valuation memorandum.
The principal failure occurs when goodwill is treated as a post-close accounting matter. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for define the board question should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
2. Reconcile the purchase price
Bridge enterprise value, equity value, debt-like items, consideration forms and acquisition-date fair value.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a consideration bridge.
The principal failure occurs when the announced headline becomes the accounting consideration. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for reconcile the purchase price should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
3. Map identifiable net assets
Inventory tangible assets, technology, brands, customer relationships, contracts, liabilities and tax effects.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an identifiable-asset register.
The principal failure occurs when residual value is assigned before the purchase-price allocation is challenged. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for map identifiable net assets should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
4. Explain the goodwill residual
Separate going-concern value, assembled workforce, buyer synergies, overpayment and measurement effects.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a goodwill composition bridge.
The principal failure occurs when all goodwill is described as synergy value. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for explain the goodwill residual should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
5. Build the deal thesis
Translate strategic rationale into named revenue, cost, capital and capability outcomes.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a deal-thesis architecture.
The principal failure occurs when broad strategic language cannot be tested after close. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for build the deal thesis should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
6. Create the synergy register
Define each initiative, baseline, owner, timing, investment, dependency and cash-flow effect.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a controlled synergy register.
The principal failure occurs when one top-down synergy number supports the price. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for create the synergy register should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
7. Separate gross and net synergies
Deduct implementation cost, dis-synergies, customer loss, tax, capex and working capital.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a gross-to-net synergy bridge.
The principal failure occurs when gross run-rate savings are capitalised as net cash flow. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for separate gross and net synergies should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
8. Separate market and buyer value
Distinguish participant assumptions from acquirer-specific capabilities and plans.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a market-to-buyer value bridge.
The principal failure occurs when buyer-specific value is embedded in fair value without disclosure. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for separate market and buyer value should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
Table 1. Goodwill composition
| Component | Evidence | Control |
|---|---|---|
| going concern | standalone cash flow | avoid duplication |
| synergies | initiative register | buyer bridge |
| workforce | integration plan | retention evidence |
| residual | PPA reconciliation | board challenge |
Illustrative analytical design; company-specific evidence and professional advice govern.

Values are illustrative evidence indices and require company-specific support.
9. Allocate goodwill to benefiting units
Map synergies to the lowest monitored cash-generating units or groups within the permitted level.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a synergy-to-CGU allocation map.
The principal failure occurs when goodwill follows legal entities instead of expected benefits. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for allocate goodwill to benefiting units should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
10. Align management reporting
Reconcile acquisition model, integration scorecard, budgets, segment reporting and impairment units.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a management-information crosswalk.
The principal failure occurs when different internal views carry incompatible forecasts. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for align management reporting should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
11. Build the acquisition baseline
Lock standalone revenue, margin, capex, working capital, tax and terminal assumptions.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a day-one baseline.
The principal failure occurs when post-close performance is compared with an unreconciled deal model. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for build the acquisition baseline should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
12. Track synergy delivery
Measure realised, run-rate, one-off, delayed, substituted and abandoned benefits.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a synergy realisation ledger.
The principal failure occurs when activity completion is reported as cash-flow delivery. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for track synergy delivery should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
13. Track integration investment
Capture systems, severance, retention, facilities, migration, branding and execution capacity.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an integration investment schedule.
The principal failure occurs when costs required to produce synergies remain outside the return calculation. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for track integration investment should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
14. Track dis-synergies
Measure customer churn, talent loss, disruption, duplicated cost, pricing leakage and delayed growth.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a dis-synergy register.
The principal failure occurs when negative integration effects are absorbed into ordinary variance. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for track dis-synergies should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
15. Test revenue synergies
Validate addressable accounts, conversion, timing, cannibalisation, capacity and incremental margin.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a revenue-synergy cohort model.
The principal failure occurs when cross-sell targets are assumed without customer-level evidence. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for test revenue synergies should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
16. Test cost synergies
Validate addressable spend, contractual exits, labour timing, service risk and stranded cost.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a cost-synergy implementation model.
The principal failure occurs when identified overlap converts immediately into sustainable savings. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for test cost synergies should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
Table 2. Synergy evidence
| Type | Primary evidence | Failure mode |
|---|---|---|
| revenue | customer cohorts | slow conversion |
| cost | contracts and roles | stranded cost |
| capital | balance-sheet data | operating constraint |
| capability | milestone plan | uncertain monetisation |
Illustrative analytical design; company-specific evidence and professional advice govern.

Values are illustrative evidence indices and require company-specific support.
17. Test capital synergies
Measure working capital, tax, capex, procurement, funding and asset-utilisation effects.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a capital-synergy bridge.
The principal failure occurs when capital release is added without considering operational constraints. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for test capital synergies should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
18. Model the value-creation waterfall
Reconcile standalone value, premium, net synergies, integration cost, financing and residual value.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a transaction value waterfall.
The principal failure occurs when deal accretion substitutes for economic value creation. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for model the value-creation waterfall should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
19. Set return thresholds
Calculate IRR, NPV, ROIC, payback and value-at-risk under consistent cash flows.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a return-on-investment dashboard.
The principal failure occurs when one EPS outcome determines transaction success. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for set return thresholds should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
20. Map impairment requirements
Identify annual tests, indicators, recoverable amount, value in use and fair-value requirements.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an impairment policy map.
The principal failure occurs when annual calendar testing delays response to deteriorating evidence. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for map impairment requirements should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
21. Identify internal triggers
Monitor budget misses, synergy slippage, churn, margin, leadership changes and restructuring.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an internal indicator dashboard.
The principal failure occurs when only external market declines trigger testing. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for identify internal triggers should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
22. Identify external triggers
Monitor rates, market capitalisation, regulation, technology, competition and demand.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an external indicator dashboard.
The principal failure occurs when macro movements are considered without unit-specific transmission. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for identify external triggers should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
23. Forecast cash-generating units
Build unit-level cash flow from approved budgets, evidence-led extensions and asset condition.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a CGU forecast pack.
The principal failure occurs when group forecasts conceal underperformance in an acquired unit. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for forecast cash-generating units should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
24. Control forecast optimism
Compare acquisition case, current budget, analyst evidence, history and downside outcomes.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a forecast challenge record.
The principal failure occurs when management plans reset after each miss without back-testing. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for control forecast optimism should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
Table 3. Impairment indicators
| Indicator | Evidence | Action |
|---|---|---|
| budget miss | variance bridge | forecast reset |
| synergy delay | initiative ledger | scenario test |
| rate increase | market curves | discount review |
| market decline | capitalisation bridge | quantitative test |
Illustrative analytical design; company-specific evidence and professional advice govern.

Values are illustrative evidence indices and require company-specific support.
25. Select discount rates
Align currency, tax, inflation, geography, industry, leverage and cash-flow risk.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a CGU discount-rate paper.
The principal failure occurs when deal WACC is carried unchanged into every unit and date. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for select discount rates should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
26. Select terminal assumptions
Reconcile growth, margin, reinvestment, capacity, obsolescence and economic life.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a terminal-value control.
The principal failure occurs when terminal value preserves acquisition optimism indefinitely. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for select terminal assumptions should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
27. Measure headroom
Calculate recoverable amount less carrying amount and allocate sensitivity to key drivers.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a goodwill headroom schedule.
The principal failure occurs when a positive conclusion is reported without distance to failure. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for measure headroom should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
28. Run scenario tests
Combine delayed synergies, lower growth, margin pressure, higher rates and customer loss.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an integrated impairment scenario matrix.
The principal failure occurs when isolated sensitivities miss correlated downside. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for run scenario tests should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
29. Run reverse stress tests
Identify the smallest assumption changes that exhaust headroom.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a reverse-stress dashboard.
The principal failure occurs when stress testing stops before an impairment threshold. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for run reverse stress tests should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
30. Reconcile market capitalisation
Bridge quoted equity value, net debt, control, units and market-participant evidence.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a market-capitalisation reconciliation.
The principal failure occurs when group market value is ignored when unit models imply a large premium. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for reconcile market capitalisation should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
31. Reconcile transaction evidence
Compare subsequent acquisitions, disposals, offers and market multiples with unit value.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a market-evidence bridge.
The principal failure occurs when internal DCF is insulated from observable transactions. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for reconcile transaction evidence should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
32. Consider disposal and restructuring
Allocate goodwill consistently when operations move, combine or are sold.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a reorganisation allocation paper.
The principal failure occurs when organisational change resets the impairment history. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for consider disposal and restructuring should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
Table 4. Recoverable-amount controls
| Input | Evidence | Challenge |
|---|---|---|
| cash flow | approved budget | history and downside |
| growth | market and capacity | reinvestment |
| discount | market inputs | unit consistency |
| headroom | integrated model | reverse stress |
Illustrative analytical design; company-specific evidence and professional advice govern.

Values are illustrative evidence indices and require company-specific support.
33. Connect impairment to financing
Assess covenants, ratings, distributable reserves, tax, remuneration and investor communication.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an impairment consequence map.
The principal failure occurs when a non-cash charge is assumed to have no wider consequences. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for connect impairment to financing should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
34. Design audit evidence
Document methods, data, significant assumptions, specialists, controls and contrary information.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an impairment audit file.
The principal failure occurs when model output substitutes for an auditable estimate. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for design audit evidence should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
35. Design disclosure evidence
Explain goodwill, synergies, units, assumptions, sensitivity and material changes.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a disclosure control pack.
The principal failure occurs when boilerplate disclosure obscures acquisition performance. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for design disclosure evidence should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
36. Create the board cadence
Review thesis, synergies, integration investment, headroom and triggers at scheduled gates.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a quarterly board review.
The principal failure occurs when impairment analysis arrives after strategic decisions are made. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for create the board cadence should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
37. Define intervention actions
Link trigger levels to operating recovery, capital reallocation, leadership, divestment and write-down decisions.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an impairment response playbook.
The principal failure occurs when red indicators produce monitoring without decisions. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for define intervention actions should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
38. Back-test acquisitions
Compare original price and synergy cases with realised cash flow and impairment outcomes.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is an acquisition back-testing report.
The principal failure occurs when lessons remain trapped within individual deal teams. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for back-test acquisitions should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
39. Build the valuation record
Archive deal models, allocations, forecasts, rate papers, sensitivities, approvals and subsequent events.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a controlled goodwill file.
The principal failure occurs when the impairment conclusion cannot be reproduced. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for build the valuation record should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
40. Close through evidence gates
Require reconciled consideration, attributable synergies, unit allocation, headroom, triggers and board approval.
The controlled record should identify the relevant customer, revenue stream, contract, cohort, relationship owner, commercial dependency, evidence source, baseline, trend, scenario, control, exception, accountable executive, deadline and approval. The immediate deliverable is a goodwill-risk close certificate.
The principal failure occurs when transaction momentum overrides unresolved goodwill risk. Reviewers should connect the evidence to revenue durability, gross margin, cash conversion, renewal probability, switching behaviour, counterparty credit and transaction value; distinguish contractual protection from observed customer behaviour; and test whether the conclusion survives a downside scenario.
The decision pack for close through evidence gates should state the commercial question, measurement perimeter, historical evidence, customer-specific facts, forecast logic, sensitivity, management action, buyer implication, residual uncertainty and next gate. Material exceptions should flow into the valuation model, quality-of-earnings work, diligence room, sale-process narrative, transaction protections and board reporting.
Table 5. Board gates
| Gate | Minimum evidence | Decision |
|---|---|---|
| price | value waterfall | premium approval |
| synergy | owned initiatives | fund integration |
| CGU | benefit allocation | monitor performance |
| headroom | tested range | intervene or approve |
Illustrative analytical design; company-specific evidence and professional advice govern.

Values are illustrative evidence indices and require company-specific support.
References
- IFRS Foundation, IFRS 3 Business Combinations, https://www.ifrs.org/issued-standards/list-of-standards/ifrs-3-business-combinations/
- IFRS Foundation, IAS 36 Impairment of Assets, https://www.ifrs.org/issued-standards/list-of-standards/ias-36-impairment-of-assets/
- IFRS Foundation, IAS 36 issued standard PDF, https://www.ifrs.org/content/dam/ifrs/publications/pdf-standards/english/2024/issued/part-a/ias-36-impairment-of-assets.pdf
- IFRS Foundation, IFRS 13 Fair Value Measurement, https://www.ifrs.org/issued-standards/list-of-standards/ifrs-13-fair-value-measurement/
- IFRS Foundation, IAS 38 Intangible Assets, https://www.ifrs.org/issued-standards/list-of-standards/ias-38-intangible-assets/
- IFRS Foundation, Business Combinations Disclosures Goodwill and Impairment project, https://www.ifrs.org/projects/work-plan/business-combinations-disclosures-goodwill-and-impairment/
- IFRS Foundation, Exposure Draft Business Combinations Disclosures Goodwill and Impairment, https://www.ifrs.org/projects/work-plan/business-combinations-disclosures-goodwill-and-impairment/exposure-draft-and-comment-letters/
- International Valuation Standards Council, International Valuation Standards, https://ivsc.org/standards/
- Financial Accounting Standards Board, Goodwill Impairment project, https://www.fasb.org/page/PageContent?pageId=/projects/recentlycompleted/accounting-for-goodwill.html
- Financial Accounting Standards Board, ASC Topic 350 Intangibles Goodwill and Other, https://asc.fasb.org/topic&trid=2126958
- Public Company Accounting Oversight Board, AS 2501 Auditing Accounting Estimates, https://pcaobus.org/oversight/standards/auditing-standards/details/AS2501
- European Securities and Markets Authority, European common enforcement priorities, https://www.esma.europa.eu/press-news/esma-news/esma-announces-2025-european-common-enforcement-priorities
- US Securities and Exchange Commission, ServiceNow 2025 annual report and acquisition goodwill, https://www.sec.gov/Archives/edgar/data/1373715/000137371526000041/now2025ars.pdf
- US Securities and Exchange Commission, United Rentals 2025 annual report goodwill risk, https://www.sec.gov/Archives/edgar/data/1067701/000119312526124155/uri_ars_fye_2025.pdf
- US Securities and Exchange Commission, BorgWarner 2025 goodwill testing, https://www.sec.gov/Archives/edgar/data/908255/000090825526000011/bwa-20251231.htm
- US Securities and Exchange Commission, Viasat 2025 annual report goodwill risk, https://www.sec.gov/Archives/edgar/data/16058/000001605825000069/fy25ar.pdf
- US Securities and Exchange Commission, 2025 goodwill impairment and sensitivity disclosure, https://www.sec.gov/Archives/edgar/data/1632127/000163212726000016/a2025ars-annualreporttosec.pdf
- US Securities and Exchange Commission, Philips 2025 goodwill disclosure, https://www.sec.gov/Archives/edgar/data/313216/000162828026009470/R17.htm
- US Securities and Exchange Commission, FedEx 2025 synergy-related impairment disclosure, https://www.sec.gov/Archives/edgar/data/1048911/000104891125000011/R15.htm
- US Securities and Exchange Commission, Teads 2025 goodwill impairment disclosure, https://www.sec.gov/Archives/edgar/data/1454938/000145493826000015/tead-20251231.htm
- US Securities and Exchange Commission, Grainger 2025 goodwill audit evidence, https://www.sec.gov/Archives/edgar/data/277135/000027713526000011/gww-20251231.htm
- US Securities and Exchange Commission, United Homes Group 2025 goodwill indicators, https://www.sec.gov/Archives/edgar/data/1830188/000183018826000009/uhg-20251231.htm
- US Securities and Exchange Commission, S&P Global 2025 goodwill testing, https://www.sec.gov/Archives/edgar/data/64040/000006404026000013/spgi-20251231.htm
- International Auditing and Assurance Standards Board, ISA 540 Revised Accounting Estimates, https://www.iaasb.org/publications/isa-540-revised-auditing-accounting-estimates-and-related-disclosures-0
- Committee of Sponsoring Organizations of the Treadway Commission, Internal Control Integrated Framework, https://www.coso.org/internal-control
- Organisation for Economic Co-operation and Development, Corporate Governance Factbook, https://www.oecd.org/en/publications/oecd-corporate-governance-factbook-2025_6f5b30a2-en.html

