Price may dominate the negotiating table, but the real value of an acquisition is determined elsewhere: in the quality of earnings, the transferability of the business and the liabilities that may not yet appear in the financial statements.
Consider a Vietnamese manufacturer attracting interest from an overseas buyer. Revenue is rising, the factory is operating near capacity and exports account for a substantial share of sales. On the surface, the investment case appears compelling: an established market position, proven production capabilities and a local team already in place.
Then due diligence begins.
One customer accounts for nearly 30% of revenue, but its contract expires within months. The rights to use part of the factory site have not been fully documented. Certain equipment was purchased through a company connected to a shareholder. More importantly, every major customer negotiation is still handled personally by the founder.
None of these findings necessarily kills the deal. Together, however, they change the question facing the buyer. The issue is no longer whether the company has grown. It is how much of that growth can survive a change in ownership.
That is the real purpose of due diligence.
From Alliance Mount’s perspective, diligence should never be treated as an exercise in completing a transaction file. It is the process of examining how a business generates revenue, profit and cash flow and whether those sources of value can genuinely be transferred to a new owner.
Reported value and transferable value are not the same
Sellers naturally present a company through the lens of what it has already achieved. Buyers assign value according to what the business can deliver after completion.
Much of the tension over valuation begins in the gap between those two perspectives.
A company may report strong EBITDA in its latest financial year, yet the number may not fully represent its underlying economics. Earnings might have benefited from deferred maintenance, reduced marketing expenditure or an understaffed management team. Revenue may have risen because of a large contract that is unlikely to recur. Working capital could be deteriorating as the company extends increasingly generous payment terms to customers.
Viewed through the income statement, the business appears to be growing. Viewed through cash flow, it may be consuming more capital simply to sustain that growth.
The distinction matters because buyers do not pay for accounting profit in isolation. They pay for cash flows that can be maintained and controlled after the transaction.
The challenge is particularly acute in Asia, where many mid-sized companies remain closely identified with their founders. Customers may trust an individual rather than the institution. Suppliers may offer preferential terms because of long-standing personal relationships. Senior employees may stay out of loyalty to the owner rather than confidence in the company’s systems or incentive structures.
These relationships can be highly valuable. But they may not belong to the business in a form the buyer can actually acquire.
One question can therefore reveal more than a page of historical growth figures: What happens if the founder steps away from day-to-day operations six months after closing?
If revenue, staff retention and supplier relationships all begin to weaken, the buyer is not acquiring a self-sustaining organisation. It is acquiring a network built around one person. Those are not the same asset, and they should not command the same valuation.
Valuation remains a hypothesis until diligence tests it
Dealmakers sometimes treat valuation as the first stage of a transaction and due diligence as a subsequent check for serious problems. In reality, a valuation remains a hypothesis until the assumptions behind it have been tested.
Suppose a buyer values a company using its EBITDA for the previous 12 months. During diligence, the buyer discovers that management costs are materially below market levels. Following the acquisition, the business will require a new chief financial officer, better reporting systems and a proper compliance function.
The historical earnings may be accurate. They are simply not the earnings the new owner will receive.
The same problem can arise in other forms. A distributor may generate substantial revenue from agreements that customers can terminate following a change of control. A technology company may report modest development costs while relying on software created by contractors who never formally assigned the intellectual-property rights.
Such findings are not footnotes. They alter the nature of the asset being valued.
In some cases, the buyer may preserve the headline price but change how it is paid. Part of the consideration might become an earn-out, payable only if major customers remain. Another portion could be held in escrow against a tax exposure or unresolved dispute. A founder may be required to remain with the company during a transition period to transfer relationships and operating knowledge.
The purpose of diligence is not to produce an impressive inventory of risks. It is to determine where each material risk should be addressed: in the price, the payment structure, the transaction documents or the post-merger plan.
If a significant finding leads to no decision at all, it probably has not been analysed deeply enough.
Buyers should try to disprove their own investment case
Most acquirers enter a transaction with a clear rationale. They may want to enter a new market, acquire production capacity, obtain proprietary technology or gain access to customers that would take years to win organically.
The danger begins when the buyer becomes too attached to that narrative.
After spending months identifying the target, negotiating terms and building a financial model, the deal team can develop a strong incentive to defend the transaction. Due diligence then becomes a search for evidence supporting a decision that has effectively already been made.
A disciplined buyer takes the opposite approach. It looks for the weakest point in its own investment thesis.
If the acquisition is justified by the target’s distribution network, the buyer needs to establish whether distributors are contractually tied to the company or merely loyal to individual sales executives. If the value lies in technology, it must determine who owns the code, whether the product can scale and how many critical engineers are likely to remain.
Synergies require even greater scrutiny. They often look persuasive in a spreadsheet: higher revenue, lower costs and wider margins. But will customers actually buy additional products? Can the two technology platforms be integrated? Does the factory have spare capacity, or will new capital expenditure be required? Are the two management teams willing to share customers and decision-making authority?
The answers may make the financial model less attractive. It is still better to obtain them before the money changes hands.
Sellers gain leverage by preparing early
For a seller, due diligence can feel like an investigation. The buyer sends a lengthy information request, advisers ask repeated questions, and apparently minor issues become the subject of several rounds of discussion.
A defensive response is understandable. It is rarely helpful.
When buyers discover a problem late in the process, they tend to value it using a conservative scenario. An uncertain tax exposure can lead to a demand for a price reduction. An unsigned contract may raise doubts about the wider quality of the company’s records. Inconsistent revenue figures can cause more concern than the size of the discrepancy itself.
What unsettles buyers is not necessarily the existence of a problem. Every business has problems. The greater concern is that the seller did not know about it, cannot explain it or provides a different set of numbers each time the subject arises.
Preparation should therefore begin well before the data room opens.
Sellers need a defensible view of normalised earnings and evidence supporting each adjustment. Related-party transactions should be identified and explained. Intellectual-property ownership, licences, employment records, tax obligations and material contracts need to be reviewed in advance.
Where weaknesses exist, the answer is not to bury them at the bottom of the data room. Management should prepare a concise, consistent explanation supported by evidence. Where possible, the issue should be corrected before the buyer raises it.
Transparency does not automatically reduce value. It can protect valuation by removing the additional discount buyers apply when uncertainty becomes difficult to measure.
The biggest risks often sit between the reports
A transaction may involve separate teams covering financial, legal, tax, commercial, operational, technology and human-capital diligence. Each team has a defined scope. A business, of course, does not operate within those boundaries.
The financial team may notice declining margins. Commercial advisers may discover that the company is cutting prices to retain customers. The operations team may find that the factory is already close to maximum capacity.
Individually, these are three separate observations. Viewed together, they tell a more troubling story: the company may need additional investment just as its pricing power is weakening. Revenue growth may not translate into stronger cash flow.
Human-capital risks are similarly easy to underestimate. Employment contracts may be complete and legally sound, but that does not mean critical employees will remain. If one commercial director controls most customer relationships, or a lead engineer holds much of the product knowledge, either person’s departure could cause more damage than a minor legal dispute.
The transaction team’s most important task is to connect these findings. A legal issue may become a revenue risk. An operational constraint may undermine the growth plan. A weakness in governance may substantially increase the capital required after closing.
Each diligence report can be technically correct while the transaction as a whole is still misunderstood.
A red flag is not always a reason to walk away
A business with no problems usually exists only in marketing materials.
The buyer’s task is to determine which risks can be managed, which can be allocated and which are serious enough to undermine the reason for pursuing the acquisition.
A doubtful receivable can be excluded from the purchase price. An unresolved dispute can be addressed through an escrow arrangement. Dependence on a major customer may justify an earn-out. Weak management reporting may be acceptable if the buyer has budgeted for the necessary systems and personnel.
Other findings strike at the foundation of the deal. The company may not own a critical asset. An essential licence may not be transferable. The technology may be unable to scale as expected. A major customer may have no intention of remaining after the change in ownership.
In those circumstances, a lower price may not solve the problem. An asset that does not fit the buyer’s strategy remains the wrong asset, however large the discount.
One of the hardest disciplines in M&A is knowing when to keep negotiating—and when to leave the table.
Due diligence should outlive the signing
Another common mistake becomes visible only after completion: the diligence reports are archived while the integration team begins its work almost from scratch.
That discards much of the value created during the process.
If diligence reveals that the company depends heavily on its founder, the first months after closing should focus on transferring relationships and decision-making authority. Weak financial information should trigger an early upgrade of reporting and controls. If critical employees are at risk of leaving, retention arrangements should be agreed before completion, not after they receive competing offers.
Due diligence is, in effect, the first draft of the post-merger plan. It tells the buyer where immediate intervention is required, what should remain untouched and which assumptions must be closely monitored during the first year.
A deal may be signed on the strength of expectations. Value emerges only when those expectations are converted into operating results.
Due diligence does not slow a transaction
Deals are rarely delayed because buyers ask too many questions. More often, the causes are inconsistent records, late information, unclear responsibilities and problems that could have been addressed before the process began.
Effective diligence allows both parties to move faster because it steadily reduces uncertainty. The buyer understands what it is acquiring. The seller knows what is affecting the valuation. Advisers can translate risk into specific contractual terms instead of negotiating around competing assumptions.
This is especially important in Asian M&A, where businesses may depend heavily on founders, local relationships and governance arrangements developed over many years.
The purchase price is ultimately just a number. What determines the success of the transaction is whether the value behind that number is real, durable and transferable.
That is why due diligence is the backbone of M&A. It keeps the investment thesis, valuation, transaction documents and post-merger plan anchored to the same commercial reality.
Alliance Mount advises businesses and investors on the preparation, assessment and execution of M&A transactions in Vietnam and international markets. Early preparation allows valuation issues to be identified before they become obstacles at the negotiating table.