Buying or selling a company is one of the most important decisions an entrepreneur or investor can make in their lifetime. At stake is not only the committed capital, but also the continuity of a business, the well-being of its workers, and the wealth of its owners.
That is why, before signing any contract or transferring shares, there is a process that no serious buyer or seller should skip: the financial due diligence.
The experience in M&A processes shows a recurring pattern: transactions that fail or generate subsequent conflicts almost always have a common origin. It is neither poorly negotiated prices nor poorly drafted contracts What causes the most problems is an incomplete or poorly executed due diligence.
The unchecked information, the unidentified liability, the overlooked risk: that is usually where the root of the problems lies.
This article is a practical guide to understanding what financial due diligence is, what it covers, why it is essential, and which points must not be missing in any serious M&A process.
What is Financial Due Diligence and why does it matter?
The financial due diligence it is the thorough review and verification process of the economic and financial situation of a company before a transaction.
Although we consider the financial variable for this article, in this case it is worth mentioning that Due diligence can be labor, tax, or legal.
The financial due diligence focuses its goal on that cbuyer understands precisely what they are acquiringnot only visible assets, but also debts, contingent liabilities, earnings quality, business sustainability, and any risks that could affect the value paid.
For the seller, the due diligence also represents a strategic opportunity. A well-prepared process, with organized information, audited figures, and coherent financial narratives, can make the difference between a smooth negotiation and one full of stumbling blocks.
Sophisticated buyers reduce their offer when they encounter clutter or inconsistencies. In contrast, when the data is clear and the financial story is solid, deal terms generally improve, the closing is accelerated, and payment terms may be more beneficial..
In the Latin American context, and particularly in Chile, many mid-sized companies operate without audited financial statements, with accounting structures that mix personal and corporate expenses, or with informal contracts that are not reflected in the books.
The Financial due diligence is the tool that brings order. in that scenario and build a reliable vision of the real value of the business.
Analysis of Historical Financial Statements
The starting point of any financial due diligence it is the detailed review of the financial statements of the last three to five years. This includes the income statement, balance sheet, and cash flow statement.
The goal is not just to read the numbers, but to understand the story they tell: have revenues grown steadily or are there isolated peaks? Are margins remaining stable or are they deteriorating? Does the company generate cash or does it depend on debt to operate?
And that is just regarding the income statement, but there are also questions that come from the balance sheet and the cash flow statement: How many days does it take to collect your accounts receivable? What has been the historical bad debt rate? How dependent are you on key customers and/or suppliers?, among others.
An especially relevant element in this stage is the EBITDA normalization. Many owner-operated companies, in particular, include expenses that are not proper to the business: salaries of family members without operational roles, leases paid to related companies at out-of-market prices, or personal expenses recorded as corporate.
Identifying and adjusting these items is essential to calculate the actual profit-generating capacity of the business and, consequently, its value.
Also it is key to analyze the seasonality of the business and its behavior during adverse periods. What happened to sales and margins during the pandemic, or in the face of a local currency devaluation? How did the company behave in the face of price hikes in critical inputs?
Financial resilience is not appreciated just by looking at the good years: it is revealed in how the business weathered the difficult cycles.
Quality and Sustainability of Revenue
Not all income is the same. One of the most important, and often underestimated, analyses within the financial due diligence is evaluating the quality of earningswhether they are recurring or sporadic, whether they come from a diversified customer base or are concentrated in one or two large buyers, and whether they have contractual backing or depend on informal relationships.
A company that generates 60% of its revenue from a single customer represents a significant concentration risk. If that client decides to switch to the competition, renegotiate terms, or simply reduce their purchases, the impact on the business's value can be dramatic.
The same applies when revenue depends on the personal figure of the owner or a key executive who will not remain with the company after the transaction. In such cases, part of the value being paid could evaporate after closing.
Evaluating sustainability also means looking ahead. Does the company have current long-term contracts? Are there clients with loyalty conditions or structural exit barriers? Will the products or services that currently generate revenue still be relevant in three to five years?
These questions do not always have a perfect answer, but formulating them and looking for concrete evidence is an essential part of the due diligence work.
Working Capital and Debt Structure Review
Working capital, basically the difference between current assets and current liabilities, is the “fuel” that allows a business to operate smoothly. A rigorous financial due diligence analysis must evaluate how the company's operating cycle is financed: how long it takes to collect from customers, how long it takes to pay suppliers, and how efficiently inventory turns over.
Businesses with very long collection cycles or immobilized stock may look profitable on paper, but in practice they require large cash injections to grow, or simply to stay afloat.
This has direct implications for the price: if the buyer will need to contribute additional working capital after the purchase, that amount should be reflected in the agreed price or in the transaction terms.
The review of financial debt deserves special attention. It is necessary to identify not only the bank loans and leases visible on the balance sheet, but also contingent liabilities: ongoing labor lawsuits, commitments to the SII, guarantees granted to third parties, debts with related parties, or shareholder loans that do not always appear clearly in the financial statements.
Bringing this type of hidden liabilities to light is one of the most important jobs in the due diligence process, and also one of the ones that can most affect the true value of the business.
Tax Due Diligence: The liability nobody wants to inherit
One of the aspects that generates the greatest conflict in poorly planned transactions is the tax liability. A company may appear financially healthy, but carry tax contingencies from previous years that the buyer, upon acquiring the shares or rights of the company, will fully inherit.
Undeclared taxes, differences in asset valuation for tax purposes, related-party transactions that do not comply with transfer pricing rules, or improperly used tax benefits are some of the most frequent situations.
A serious due diligence always includes a tax review coordinated with specialized lawyers and accountants. This makes it possible to map potential tax risks, quantify them as much as possible, and decide how they will be managed in the transaction structure, whether through price adjustments, purchase price retentions, or specific seller guarantees.
In the Chilean context, reviewing the SII's audit history, consistency in tax returns, and the treatment of related-party transactions are points that no serious process can omit. Tax ignorance does not exempt the buyer from their responsibilities once the transaction is closed.
Labor Due Diligence: Liabilities that nobody budgets for
One of the aspects that most frequently surprises buyers, even those with experience in transactions, is the hidden labor liability.
It's not just about detecting ongoing litigation: a wrongful termination lawsuit, a latent union conflict, or a labor regulation violation can be quantified and managed if identified in time. The real problem arises when no one asked the right question before closing.
Labor due diligence has two distinct objectives:
- The first is to map current contingencies: review the history of labor litigation, the consistency in the payment of social security contributions, compliance with collective bargaining agreements, and the conditions of individual employment contracts, especially those of key executives whose terms may contain costly exit clauses.
- The second objective is to quantify the implicit labor liability, the one that does not appear in the financial statements but that every company with a stable workforce accumulates over time.
The second point is particularly relevant in the context of an acquisition. When a buyer takes control of a company, it is reasonable to anticipate that a proportion of the current staff will not continue in the new structure.
Those workers must be compensated in accordance with current legislation, which generates a certain although deferred outflow. Therefore, in any serious process, a projection of the severance cost for years of service is prepared for the entire workforce, weighted according to the estimated probability of termination.
That amount, once calculated, is deducted directly from the Enterprise Value in the final price negotiation. Now, failing to take this into account or simply ignoring it does not make it disappear; it merely shifts the cost to the buyer without them having negotiated it.
Valuation of the Company as the Anchor of the Process
Financial due diligence does not exist in a vacuum: its ultimate purpose is to validate or question the valuation with which the negotiation began. Once the analysis of financial statements, revenue quality, working capital, and potential liabilities is complete, the buyer has the necessary elements to build—or review—their valuation model.
The most widely used methodologies in private company transactions are the Discounted Cash Flow (DCF) and the analysis by comparable transaction multiples. The DCF projects the business's future cash flows and discounts them at a rate that reflects the cost of capital and the specific risk of the company. Multiples, on the other hand, allow comparing the price paid with similar transactions in the market, something especially relevant when there is sufficient information available on operations in the same industry.
A A good valuation is not the one that yields the highest or lowest number, but the one that best reflects the reality of the business.. To that end, financial due diligence is not a bureaucratic procedure completed just to “appear compliant”: it is the most important input that feeds the valuation model and, ultimately, defines whether the price to be paid or received is fair.
The Role of the Financial Advisor in the Process
To hire a financial advisor specializing in M&A It is not a luxury reserved for large corporations: it is an investment that pays for itself, especially in mid-sized transactions where the margin of error has a direct and concrete impact on the buyer's or seller's assets.
A good advisor doesn't just review the numbers: they also help interpret what is behind them, identify red flags that aren't immediately obvious, coordinate work with lawyers and tax specialists, and, most importantly, represent their client's interests in negotiations with solid information and well-founded arguments.
The difference between a well-prepared advisor and a superficial one can mean millions of pesos in the final price of a transaction.
The scope of M&A advisor it goes beyond strict due diligence. Comprehensive support includes the initial business valuation, the search and qualification of potential buyers or sellers, the coordination of all stakeholders in the process—legal, accounting, and financial—and support in the negotiation and closing of the transaction.
That overarching vision is what allows for making coherent decisions at each stage, without the parts ending up solving interconnected problems in isolation.
Due Diligence: More than an Expense, an Investment
When it comes to buy or sell a company, information is power. A well-executed financial due diligence reduces uncertainty, protects the buyer from unpleasant surprises after closing, allows the seller to present their business with confidence and strength, and ultimately creates the conditions for both parties to reach a fair and sustainable agreement.
In fact, always -or in the vast majority of cases- the due diligence is paid for by the buyer, because they are the party most interested in:
- Find all irregularities within the company prior to the operation
- Leverage these irregularities as a negotiation leverage
Conversely, the cost of rigorous due diligence is always lower than the cost of discovering after the closing that the business was worth less than what was paid, that there was an undisclosed tax liability, or that revenue depended on a client who will no longer renew their contract.
Processes done right from the start not only protect capital: they also build trust between the parties and lay the foundation for a successful transition.
The financial due diligence it is not the only step in a transaction, but it is the one that determines the quality of all the others. Without reliable information there is no solid valuation, without a solid valuation there is no grounded negotiation, and without a grounded negotiation there is no closing that stands the test of time.
Investing in this process, with the rigor and depth it deserves, is the best decision anyone about to buy or sell a company can make.
