Ask any experienced M&A advisor where the largest post-LOI price reductions typically come from, and the answer is consistent: Quality of Earnings analysis. It is the single most important due diligence workstream in a lower middle market transaction, and it is the workstream most likely to move price after a deal is signed.
Sellers who go to market without understanding how Quality of Earnings works are unprepared for the specific ways their reported earnings will be challenged — and often surprised by how much valuation can be lost when they fail to defend the numbers they submitted.
This article explains what a Quality of Earnings analysis is, what it tests, how buyers use it to renegotiate price, and what sellers can do before going to market to protect themselves.
What Quality of Earnings analysis is.
A Quality of Earnings analysis — commonly abbreviated QoE — is a detailed forensic examination of a company's reported earnings, performed by an independent accounting firm engaged by the buyer. The purpose is to test whether the earnings the seller has represented actually reflect the underlying economic performance of the business.
It is not an audit. Audits test whether financial statements comply with accounting standards. A QoE tests whether reported earnings are sustainable, repeatable, and accurately measured — regardless of whether the accounting itself is technically correct.
Two businesses can each report $1,000,000 in EBITDA and have wildly different underlying earnings quality. One might be sustainable, repeatable, and accurately measured. The other might depend heavily on one-time items, questionable revenue recognition, or unsustainable margin drivers. QoE separates the two.
A Quality of Earnings analysis doesn't ask "are the numbers correct?" It asks "are the numbers real?" Those are different questions, and the second one is what determines the deal.
Who performs Quality of Earnings work.
QoE analyses are performed by specialized transaction advisory firms — typically the transaction services groups of accounting firms. Larger deals go to Big Four firms (Deloitte, EY, KPMG, PwC) or major national firms (BDO, Grant Thornton, RSM). Lower middle market deals more often go to regional firms with transaction advisory practices.
These are not the seller's regular accountants. The buyer engages the QoE firm directly, pays them, and receives the report. The seller's role is to respond to information requests during the analysis. The seller does not receive the QoE report unless the buyer chooses to share it.
This independence is intentional. Buyers want an objective analysis. They also want the QoE firm to be professionally motivated to identify issues — because if the QoE firm misses something and the buyer discovers it later, the QoE firm's reputation suffers. That motivation creates thoroughness, and thoroughness is what generates the surprises sellers often encounter.
What Quality of Earnings actually tests.
The QoE process typically breaks down into several core analytical categories. Each one is a way of asking a specific question about reported earnings.
Revenue recognition and quality.
The QoE firm tests whether revenue is being recognized appropriately and whether it is likely to continue. Common questions:
Is revenue recurring, contractual, or transactional? Recurring subscription revenue is worth more than one-time project revenue.
Are there significant one-time revenue events in the trailing twelve months that inflate reported performance? Unusual large orders, contract settlements, insurance recoveries.
How concentrated is the customer base? Deep concentration in one or two customers reduces earnings quality even if the reported numbers are correct.
Are pricing trends sustainable? Are recent price increases likely to hold, or were they exceptional?
EBITDA add-backs.
This is where the most disputed adjustments happen. The seller has proposed a set of add-backs to arrive at "adjusted EBITDA." The QoE firm tests each one. Add-backs that survive stay in the calculation. Add-backs that don't survive get rejected, reducing enterprise value directly.
Owner compensation normalization gets tested against actual market comp for the role. If the owner claims $250,000 in above-market compensation as an add-back, the QoE firm compares against comp studies for similar-sized businesses in the industry. If market comp is closer to $175,000, only the $75,000 gap survives as an add-back.
Discretionary owner benefits require documentation. Personal vehicle usage requires evidence. Country club memberships require justification. Family cell phones on the company plan need to be identified and separated.
One-time expenses get scrutinized aggressively. QoE firms are professionally skeptical of "one-time" characterizations. A legal fee described as one-time is checked against whether similar legal fees appeared in prior years. A "one-time" consulting engagement gets examined for whether the underlying activity actually continues.
Related-party adjustments require market-rate comparisons. Rent paid to the owner for the owner's building must be normalized to fair market rent. A below-market salary to a family member must be normalized upward. Each adjustment can move EBITDA in either direction.
Working capital normalization.
A separate but related workstream. The QoE firm analyzes normal working capital requirements to establish a "target" that will be measured at closing. If the business needs $500,000 of average working capital to operate, the buyer wants that $500,000 in the business at closing. Anything less becomes a purchase price adjustment.
Sellers unfamiliar with working capital normalization often lose meaningful money at closing through this mechanic alone. The target methodology matters, the reference period matters, and how seasonal fluctuation is handled matters.
Accounting policy analysis.
The QoE firm reviews the accounting choices the business has made. Revenue recognition timing. Inventory valuation methods. Accrual practices. Capitalization thresholds. Bad debt reserves. Each choice can affect reported earnings in ways that may or may not reflect economic reality.
Aggressive accounting policies get identified and either adjusted or flagged for the buyer. Conservative accounting policies sometimes work in the seller's favor when normalized to more standard treatments.
Trend analysis.
Reported earnings get analyzed across multiple periods — typically trailing three years, sometimes five. The QoE firm looks for consistency, for unexplained shifts, for margin volatility, for anything that suggests the current period is not representative of sustainable performance.
A business showing suspicious earnings acceleration in the twelve months before sale gets flagged. So does a business showing unexplained margin compression, unusual expense timing, or shifts in customer mix that suggest instability.
How buyers use the results.
The QoE report typically produces a "Quality of Earnings" number — the adjusted EBITDA the analysis supports — along with a set of identified issues, risks, and observations.
Buyers use this in several ways:
Direct price adjustment. If the QoE-supported EBITDA is lower than what was represented in the LOI, buyers often request a corresponding price reduction. At a five-times multiple, a $200,000 reduction in EBITDA translates to a $1,000,000 reduction in purchase price.
Working capital target refinement. The QoE-derived working capital target becomes the basis for the closing calculation. Any shortfall reduces price dollar-for-dollar.
Representation and warranty modifications. Identified risks or open items become the basis for specific representations, sometimes with corresponding indemnification obligations, sometimes with escrow holdbacks.
Deal restructuring. In extreme cases, significant QoE findings lead to changed deal structure — seller notes replacing cash, earnouts replacing fixed consideration, or renegotiated closing conditions.
What sellers can do before going to market.
The most effective response to QoE analysis is to anticipate it. Sellers who understand what will be tested can address issues before going to market rather than react to them under pressure after LOI.
Document every add-back. Every proposed adjustment to EBITDA needs supporting documentation. An add-back the seller can defend in writing before going to market is far more likely to survive QoE than one that requires reconstruction under pressure.
Test the add-backs against market benchmarks. Owner compensation add-backs need to be validated against actual market comp for similar roles. Rent normalizations need to reflect actual market rents for comparable properties. Testing these before going to market avoids proposing add-backs that will predictably be rejected.
Understand customer concentration. The QoE firm will analyze concentration. Sellers should analyze it first and have a story about how concentration is being managed — ideally with evidence of diversification efforts, contract terms that protect against single-customer risk, or explanations of why the concentration is stable.
Reconcile monthly financials. Businesses that produce clean monthly financial statements with proper accruals, reconciliations, and consistent methodology have less QoE risk than businesses that manage financials annually with adjustments concentrated at year-end.
Address one-time items honestly. Sellers sometimes over-claim one-time treatment for items that recur. This backfires. Better to concede that certain expenses are ongoing and negotiate the multiple applied to earnings than to claim add-backs the QoE firm will reject anyway.
Consider a sell-side QoE. Some sellers commission their own Quality of Earnings analysis before going to market. A sell-side QoE identifies issues the seller can address in advance and produces documentation the seller can share with buyers. This is more common for larger transactions but is increasingly used in the lower middle market for sellers who want maximum control of the diligence process.
What sellers should expect during QoE.
The QoE process typically runs three to six weeks after LOI signing. The seller can expect:
Detailed information requests. Financial data going back three to five years. Detailed general ledger data. Bank statements. Customer contracts and invoices. Vendor agreements. Payroll registers. Everything that supports the reported numbers.
Management interviews. The QoE firm will interview the owner and any key financial personnel. Questions will be detailed and specific. Preparation matters.
Follow-up questions. As the analysis progresses, new questions will emerge. The seller's responsiveness affects both the speed of the process and the buyer's confidence in what they're purchasing.
Interim discussions. The QoE firm may raise issues with the buyer's counsel or deal team as the analysis progresses. The seller often doesn't see these conversations, which then become the basis for post-QoE negotiation positions.
Why this matters more than most sellers realize.
Lower middle market sellers sometimes assume Quality of Earnings analysis is something reserved for larger transactions or institutional buyers. It isn't. Any sophisticated buyer — particularly private equity, family offices, and platform acquirers — will engage QoE work even on transactions well below $10,000,000 in enterprise value.
The reason is straightforward. QoE work typically costs $30,000 to $75,000 for a lower middle market deal. If it identifies $200,000 of unsupportable add-backs, at a 5x multiple that translates to $1,000,000 of enterprise value the buyer no longer has to pay. The return on investment for the buyer is enormous, which is why the analysis is now standard.
For sellers, this means a QoE analysis is a near-certainty in any transaction with a professional buyer. The question is not whether one will happen. The question is whether the seller will be prepared for it.
Sellers who prepare protect their price. Sellers who don't often watch it erode in the weeks between LOI and closing — not because their business is any less valuable, but because they weren't ready to defend the numbers they represented.
The good news is that the preparation is knowable. And the sellers who do it capture what the sellers who don't leave on the table.