In my previous article, I discussed why Pillar Two risk does not end when the SPA is signed.
For buyers, the first 100 days after completion are now a critical period.
That is when the acquired business must be integrated into the buyer’s Pillar Two framework.
That is when data gaps become operational problems.
That is when tax incentives, transfer pricing, financing and reporting systems are tested in practice.
But there is another side to the same issue.
If Pillar Two can erode value after closing, it can also affect value before signing.
And that matters for sellers.
A seller preparing for exit can no longer assume that Pillar Two is only a buyer-side concern.
In many transactions, the buyer will ask a much more direct question:
Is this business Pillar Two-ready?
If the answer is unclear, the issue may not simply become a diligence point.
It may become a pricing point.
It may become a warranty point.
It may become a specific indemnity point.
It may become a completion accounts issue.
It may slow down the transaction.
It may create uncertainty around the equity story.
And in competitive auction processes, uncertainty is rarely neutral.
It is usually priced.
Pillar Two has changed vendor readiness
Traditionally, vendor tax readiness focused on familiar areas.
Corporate tax compliance.
Historic exposures.
Transfer pricing documentation.
Withholding taxes.
VAT.
Employment taxes.
Permanent establishment risk.
Use of losses.
Tax attributes.
Substance.
Tax authority enquiries.
Legal entity structure.
These areas remain essential.
But Pillar Two adds a different layer.
It asks whether the business can be understood, modelled and reported on a jurisdictional basis under a global minimum tax framework.
That is a very different question from asking whether local tax returns have been filed.
A business may have strong local compliance and still be weak from a Pillar Two perspective.
It may have paid the correct amount of local corporation tax.
It may have no material historic tax disputes.
It may have transfer pricing policies that are broadly defensible.
It may have no aggressive tax planning.
And still, it may not be able to provide the information a buyer needs for Pillar Two modelling.
That is where vendor readiness has changed.
The issue is no longer only whether there is a historic tax exposure.
The issue is whether the seller can explain how the business will behave inside a buyer’s global tax profile.
The buyer is not only buying profits
In a transaction, the buyer is not only buying EBITDA.
The buyer is buying cash flows.
The buyer is buying legal entities.
The buyer is buying tax attributes.
The buyer is buying systems.
The buyer is buying people.
The buyer is buying compliance history.
The buyer is buying data.
And, in a Pillar Two environment, the buyer may also be buying complexity.
That complexity may arise from low-tax jurisdictions.
It may arise from tax holidays.
It may arise from patent box regimes.
It may arise from R&D incentives.
It may arise from deferred tax balances.
It may arise from intra-group financing.
It may arise from local accounting differences.
It may arise from transfer pricing adjustments.
It may arise from permanent establishments.
It may arise from joint ventures or minority interests.
It may arise from carve-out limitations.
It may arise from incomplete data.
The point is not that every Pillar Two issue creates top-up tax.
That would be too simplistic.
The point is that every unresolved Pillar Two issue creates a question.
And in M&A, unresolved questions affect value.
A good tax profile is not the same as a good Pillar Two profile
This distinction is important.
A target may be tax-compliant in every jurisdiction.
But that does not automatically mean it has a clean Pillar Two profile.
Local compliance and Pillar Two readiness are different exercises.
Local tax compliance asks whether the entity has complied with domestic tax law.
Pillar Two asks whether the group can determine jurisdictional income, covered taxes, effective tax rates and potential top-up tax under a separate framework.
That requires different data.
It requires different reconciliations.
It requires different ownership.
It requires different review.
It requires a different governance process.
A local finance team may know how to prepare statutory accounts.
That does not mean it can produce Pillar Two data.
A local adviser may know how to prepare the corporate tax return.
That does not mean the adviser has reviewed the position through a GloBE lens.
A management reporting pack may be sufficient for commercial purposes.
That does not mean it reconciles cleanly to the figures needed for Pillar Two.
A seller who cannot explain this distinction clearly may create avoidable uncertainty in diligence.
A seller who can explain it clearly may protect value.
Tax incentives need to be presented carefully
Tax incentives are a good example.
Before Pillar Two, sellers often presented tax incentives as part of the commercial attractiveness of a business.
The message was simple.
The business benefits from a favourable tax regime.
The incentive reduces local tax cost.
The incentive improves cash flow.
The incentive supports valuation.
Those points may still be correct.
But they are no longer sufficient.
Under Pillar Two, the buyer will want to understand whether the local benefit survives at group level.
A tax holiday may reduce the local tax charge.
But it may also reduce the jurisdictional effective tax rate.
A patent box regime may produce a favourable domestic tax outcome.
But it may need to be modelled in the buyer’s Pillar Two calculation.
An R&D incentive may improve local economics.
But the buyer will want to understand how it is treated for Pillar Two purposes.
A notional interest deduction may be valuable locally.
But its group-level effect needs to be tested.
A special economic zone benefit may be attractive.
But the buyer will ask whether the benefit is durable, supportable and Pillar Two-efficient.
This does not mean incentives have lost their value.
It means they need to be valued properly.
A seller should not present the gross local tax saving as if it were automatically a net group-level benefit.
That is where valuation disputes arise.
Vendor due diligence needs a Pillar Two chapter
In larger transactions, vendor due diligence is already common.
The seller prepares the business for market.
Advisers identify issues.
The sell-side team controls the narrative.
The data room is organised.
The tax position is explained.
The buyer receives a report that allows it to diligence efficiently.
Pillar Two should now be part of that process.
Not in every transaction.
Not in a disproportionate way.
But where the business is, or may become, relevant to a Pillar Two group, the seller should consider preparing a Pillar Two vendor analysis.
That analysis does not need to replicate the buyer’s full calculation.
It should not pretend to know every buyer’s global tax profile.
But it should help answer the questions that sophisticated buyers are likely to ask.
Which entities and permanent establishments are in scope?
Which jurisdictions are relevant?
What is the consolidated revenue position?
What tax incentives exist?
What deferred tax balances may matter?
Where does the data sit?
Can the data be reconciled?
What transfer pricing policies are in place?
Are there material differences between statutory accounts, management accounts, consolidation numbers and CbCR data?
Are there uncertain tax positions?
Are there intra-group financing arrangements?
Are there hybrid, withholding tax or substance issues that may affect the wider analysis?
Are there local filings or registrations required?
Who owns the information?
What can be provided to the buyer?
What cannot be provided?
That is not an academic exercise.
It is transaction discipline.
Carve-outs require particular care
Carve-out transactions are often the most difficult.
A carved-out business may not have standalone historic accounts.
It may rely on group systems.
It may rely on central tax teams.
It may rely on shared ERP data.
It may not have its own transfer pricing documentation.
It may not have independent CbCR data.
It may not have separate deferred tax analysis.
It may not have a clear local finance function.
It may not have a clean legal entity perimeter.
In a carve-out, the seller may understand the business commercially, but not have a clean Pillar Two story for the perimeter being sold.
That matters.
A buyer acquiring a carve-out will want to know what it is inheriting.
It will want transitional support.
It will want information rights.
It will want access to historic data.
It will want clarity on how the seller prepared Pillar Two information before completion.
It will want to know whether the acquired business was analysed separately or only as part of a wider group.
It will want to know whether any safe harbour position is supportable.
It will want to know whether data limitations are temporary or structural.
If the seller cannot answer those questions, the buyer may protect itself through price, conditions, covenants, warranties or indemnities.
That is exactly what the seller should try to avoid.
Transfer pricing can become a valuation issue
Transfer pricing is another area where Pillar Two changes the conversation.
A seller may have an existing transfer pricing model that is locally supportable.
The buyer may intend to change that model after completion.
It may centralise IP.
It may introduce management charges.
It may move procurement.
It may change financing.
It may align distribution margins.
It may introduce new service arrangements.
It may shift functions and risks.
From a traditional tax perspective, the question is whether those changes are arm’s length and locally defensible.
That remains essential.
But under Pillar Two, the buyer will also consider how those changes affect jurisdictional profit and covered taxes.
A transfer pricing model can be technically supportable but still produce an inefficient Pillar Two outcome.
That matters for valuation.
If the seller presents the business on the basis of current margins, current incentives and current tax costs, but the buyer knows that integration will change the Pillar Two profile, the buyer may adjust its offer.
The seller therefore needs to understand not only its current tax position, but also how that position may look to a buyer after integration.
That is a different level of preparedness.
The data room is now part of the tax control environment
In many transactions, the tax data room is treated as a document repository.
Tax returns.
Accounts.
Transfer pricing reports.
Correspondence with tax authorities.
Tax rulings.
Group structure charts.
Intercompany agreements.
VAT registrations.
Employment tax filings.
That is necessary.
But for Pillar Two, it may not be enough.
A buyer may need a much clearer data trail.
How do the statutory accounts reconcile to management accounts?
How do local tax returns reconcile to covered taxes?
How are deferred tax balances analysed?
How are permanent establishments identified?
How are tax incentives tracked?
How are intra-group charges calculated?
How are losses treated?
How are consolidation adjustments recorded?
How are uncertain positions monitored?
Who signs off the numbers?
Who can explain the methodology?
If the answer is spread across tax, finance, legal, accounting, treasury and local advisers, the seller should not wait for the buyer to discover that fragmentation.
The seller should organise the story before the process begins.
That is part of value protection.
Warranties and indemnities are not a substitute for readiness
Some sellers may assume that Pillar Two can be handled through transaction documentation.
That is only partly correct.
Warranties, covenants and indemnities matter.
They allocate risk.
They create remedies.
They protect against identified exposures.
They may require cooperation.
They may require the seller to provide information after completion.
But they do not fix a weak Pillar Two story.
A warranty does not create missing data.
An indemnity does not reconcile accounts.
A covenant does not explain deferred tax.
An information right does not guarantee that local teams know what to provide.
A tax schedule does not make a business Pillar Two-ready.
If the buyer sees a governance issue, legal protection may not be enough.
The buyer may still price the uncertainty.
The seller’s objective should be to reduce the need for protection by giving the buyer confidence in the position.
That is a commercial objective, not only a legal one.
The CFO should own the exit narrative
Pillar Two is often seen as a tax technical issue.
But in a sale process, it becomes a CFO issue.
It affects the quality of earnings narrative.
It affects forecast tax rates.
It affects cash tax assumptions.
It affects the value of incentives.
It affects the credibility of tax disclosures.
It affects the robustness of management information.
It affects audit readiness.
It affects buyer confidence.
It affects execution risk.
A CFO preparing a business for sale should ask a direct question:
If a sophisticated buyer asks for the Pillar Two story, can we answer clearly?
If the answer is no, the business may not be exit-ready.
That does not mean the sale cannot proceed.
It means the seller may be entering the process with avoidable friction.
And avoidable friction often becomes avoidable value leakage.
The practical solution: build a Pillar Two exit file
The practical answer is not to over-engineer every transaction.
Not every target requires a full Pillar Two workstream.
Not every business creates material exposure.
Not every buyer will approach the issue in the same way.
But sellers of internationally active businesses should consider preparing a focused Pillar Two exit file.
That file should be practical.
It should be clear.
It should be capable of being understood by tax, finance, legal advisers and the buyer’s deal team.
It should identify the relevant entities and jurisdictions.
It should explain the tax incentive profile.
It should summarise transfer pricing arrangements.
It should identify deferred tax issues.
It should explain the data sources.
It should flag limitations.
It should reconcile key numbers where possible.
It should identify who owns the data.
It should explain what the seller can provide during diligence and after completion.
It should distinguish between technical exposure and operational readiness.
Most importantly, it should allow the seller to control the narrative.
A buyer will ask questions.
That is inevitable.
The seller should decide whether those questions are answered from a position of preparation or from a position of reaction.
Exit value is protected before the buyer asks the question
The commercial point is straightforward.
Pillar Two is not only a compliance issue.
It is not only a tax technical issue.
It is not only a post-completion integration issue.
For sellers, it is now also an exit-readiness issue.
A clean Pillar Two story can support valuation.
A weak Pillar Two story can create uncertainty.
Uncertainty can delay the process.
Delay can affect leverage.
Leverage affects price.
That is why sellers should not wait for buyer diligence to discover the issue.
They should prepare before going to market.
They should understand the data.
They should test the incentives.
They should review transfer pricing.
They should identify the jurisdictions.
They should document the process.
They should be clear about limitations.
They should be ready to explain the position.
Because in modern M&A, tax risk is not only found in historic exposures.
It is also found in the quality of the information that supports the deal.
For buyers, Pillar Two risk can erode value after completion.
For sellers, Pillar Two weakness can erode value before completion.
That is the point sophisticated sellers should focus on now.
The best time to manage a Pillar Two question is not when the buyer raises it.
It is before the business goes to market.
Vectigalis AC Tax advises internationally active groups, private equity-backed businesses, entrepreneurs and finance teams on UK and international tax, Pillar Two readiness, cross-border M&A tax risk, transfer pricing and transaction tax governance.
Our approach is practical, commercially focused and technically robust: identify the exposure, model the value impact, organise the data, control the diligence narrative and build an HMRC-defendable action plan before tax uncertainty becomes value leakage.