Inaccurate accounting is the silent killer of mergers and acquisitions (M&A) deals, undermining buyer trust and rendering the company’s financial story unverifiable during Due Diligence. To fix it, business owners should proactively engage an M&A advisor to perform a Quality of Earnings (QoE) report. This process cleans the books, normalizes discretionary expenses (owner add-backs), and establishes a defensible, auditable Normalized EBITDA. Ignoring this preparation leads to price chipping, lawsuits, or complete deal collapse, often wasting months of effort.
The Silent Killer Defined: Buyers Walk Away from Unaudited Books
In the M&A world, perception equals price, and accurate books cement that perception. Buyers purchase predictable future income, not past activities, and rely entirely on financial data to project that income. Inaccurate accounting, even if unintentional, signals instability, operational sloppiness, and potential fraud risk. Once integrity is questioned, the buyer’s motivation shifts from acquisition to investigation. This suspicion immediately slows the transaction timeline, escalates advisory fees, and provides the buyer leverage to demand a significant price reduction (or “chip”). Ultimately, buyers walk away because the risk of acquiring unknown financial liabilities exceeds the value of the business.
The Cost of Financial Complacency: How Flawed Data Reduces Enterprise Value
Flawed data prevents buyers from calculating the company’s actual value, significantly reducing its worth. Owners often mistake tax-minimizing accounting for market-maximizing accounting. This complacency means key performance indicators (KPIs) are unclear, and profit is obfuscated. The lack of clean, transferable earnings forces the buyer to assume the worst, lowering the valuation multiple applied to the company.
Immediate Deal Failure: Red Flags That Instantly Spook a Buyer’s Analyst
Buyer analysts employ aggressive skepticism during due diligence, specifically looking for instant red flags. These include unreconciled bank statements, inconsistent reporting periods, high levels of personal owner expenses mixed with business costs, and inadequate documentation for large, one-time transactions. When an analyst finds these flaws, they raise a “material risk” warning to the investment committee. This warning often triggers an immediate collapse of the deal or a crippling re-negotiation of the terms outlined in the Letter of Intent (LOI).
The Hidden Errors That Trigger Due Diligence Collapse
The devil truly lives in the financial details, and specific accounting errors actively dismantle a deal. Understanding these technical pitfalls allows owners to target and eliminate them before they become fatal.
Normalization Failure: Miscalculating Owner Add-Backs and Discretionary Expenses
Add-backs are legitimate, non-recurring owner expenses that must be added back to net income to show true business profitability. Common examples include excess owner salary, personal life insurance premiums, or family travel expenses charged to the company. Owners often misclassify these or lack the documentation to support them, leading the normalization calculation to appear inflated or deceptive to the buyer. This failure directly affects EBITDA, the primary profit metric used for valuation, creating an immediate conflict over the purchase price.
Unverifiable Cash Flow: The Danger of Poor Revenue Recognition Practices
Buyers scrutinize how and when a company records its income; poor revenue recognition is a significant area of risk. Practices like billing upfront for services delivered over a year or recognizing large, non-refundable deposits as revenue immediately skew the financial picture. These practices complicate verification and violate Generally Accepted Accounting Principles (GAAP), leading the buyer to doubt the sustainability of reported income and the quality of the company’s internal controls.
Inventory and Working Capital: Exposing Critical Valuation Gaps
Errors in accounting for Inventory and Working Capital are primary killers in asset-heavy deals. Improperly valued or obsolete inventory inflates assets on the balance sheet, deceiving the buyer about the company’s real liquidation value. Additionally, buyers insist on a target working capital amount at closing. Suppose the seller’s accounting practices hide working capital shortfalls. In that case, the purchase price will be adjusted downward dollar-for-dollar on the closing day, leading to significant disputes and the seller’s disappointment.
Engaging Professional M&A advisor is Non-Negotiable
Preparation is the only defense against the silent killer, and professional M&A advisors provide that shield. These specialized financial advisors transform raw, tax-focused data into a clean, market-ready investment package.
Leveraging a Proactive Quality of Earnings (QoE) Report
The Quality of Earnings (QoE) report is a seller’s most powerful tool, serving as a pre-emptive strike against buyer skepticism. A QoE is a financial deep-dive performed by the sell-side M&A service accountants that verifies the reliability and sustainability of earnings. This proactive report controls the narrative, validates the financial claims, and significantly reduces the buyer’s required due diligence time and cost, smoothing the entire process.
Justifying the Price with Normalized EBITDA
Professional M&A advisors produce a meticulously calculated Normalized EBITDA figure. This metric adjusts the company’s historical earnings to reflect its true, ongoing profitability by objectively filtering out owner perks, one-time legal fees, or extraordinary pandemic-related expenses. Providing a professionally justified, normalized EBITDA backed by a credible valuation methodology allows the seller to confidently defend the asking price and maintain negotiation leverage.
Beyond the Number: The Role of the M&A Advisor in De-Risking the Sale
An M&A Advisor does far more than just calculate a number; they de-risk the entire sale process. They serve as a crucial buffer between the emotional owner and the objective buyer, managing the relentless flow of due diligence requests and addressing complex accounting issues before they escalate into crises. Their involvement signals to the market that the seller is serious and prepared, attracting higher-quality buyers and securing favorable deal structures.
The Fix: 5 Steps to Achieve M&A Readiness
Achieving M&A readiness is a systematic process requiring discipline, not genius. Owners must begin this value acceleration process 12–24 months before listing the business.
Phase 1: Implementing Audit-Ready Accounting and Internal Controls
Hire a CPA team specializing in M&A transactions to review and restructure your chart of accounts. Eliminate co-mingling of personal and business funds immediately, and require receipts and clear documentation for all discretionary spending. Implement rigorous monthly reconciliation and financial-closing processes to ensure the books are always auditable, even when an audit is not required.
Phase 2: Formalizing Customer Contracts and Addressing Concentration Risk
Review all major customer contracts to ensure they are current, signed, and legally enforceable; buyers will want to see these details. Reduce customer concentration risk by diversifying revenue streams; overreliance on a single customer can drastically reduce valuation multiples. Document all sales cycles, marketing costs, and customer retention metrics to prove the stability of future revenue.
Phase 3: The Pre-Emptive Tax and Legal Clean-Up
Engage legal counsel to perform a pre-sale legal audit of key documents, including employment agreements, leases, and Intellectual Property (IP) filings. Address any outstanding litigation or regulatory compliance issues immediately; these will surface during buyer due diligence. Obtain a tax review to verify past filings, prevent hidden tax liabilities from emerging, and structure the deal to minimize the seller’s final tax burden.
Closing the Gap Between Expectation and Reality
The “Silent Killer” is not inaccurate numbers, but the seller’s unpreparedness that those numbers represent. Professional M&A advisors bridge the gap between an owner’s optimistic price expectation and a buyer’s calculated offer. By making a proactive investment in financial cleanup, QoE reporting, and advisor guidance, owners eliminate distrust, justify a higher valuation, and ensure they close the deal they deserve, rather than the one forced upon them.
Frequently Asked Questions (FAQs)
What is Normalized EBITDA, and why is it essential for selling a business?
Normalized EBITDA represents a company’s earnings power by adjusting the reported EBITDA for non-recurring or non-essential owner expenses (add-backs) and extraordinary items, providing the buyer with a verifiable, sustainable figure on which to base the valuation.
How much does a QoE report cost, and is it mandatory?
While not legally mandatory, a Quality of Earnings (QoE) report is strategically essential, and its cost is typically viewed as an investment, ranging from $15,000 to well over $100,000 depending on the business size and complexity; the ROI is a demonstrably higher, more secure sale price.
How far back do buyers examine financial records?
Buyers usually require and scrutinize the last three to five years of detailed financial statements, tax returns, and operating data to establish clear trend lines and verify the consistency of the business’s performance.
Can I do the business valuation myself?
While you can calculate a rough estimate, you should never perform the final valuation yourself when selling, as buyers require an objective, professional report from an independent third party to validate the asking price and support negotiation.
What is the biggest mistake owners make during due diligence?
The biggest mistake is failing to maintain operational growth during the sale process, as buyers use the most recent financial data to assess the business’s health and will reduce the price if performance declines.
Conclusion
The Windes Transaction Advisory Services team primarily acts as a trusted financial and tax advisor for businesses looking to buy or sell, focusing on maximizing value and mitigating risk throughout the complex transaction process. Across all transactions, Windes assists with crucial steps, including cash flow modeling, tax-efficient structuring, strategic input on the Letter of Intent (LOI) and Purchase Agreement, and managing post-close adjustments, such as the working capital true-up calculation. Contact us for assistance today.

Chase McClung, CPA, CM&AA
Partner, Audit & Assurance Services
Transaction Advisory Practice Leader
Chase works closely with owners of privately held businesses in their preparation for potential mergers and acquisitions. His technical expertise in this area includes financial due diligence for both buyers and sellers, EBITDA and working capital analyses, quality-of-earnings studies, and review of transaction-related agreements.
