Quality of Earnings: What It Really Tells Lenders and Investors
When a buyer signs a letter of intent, the purchase price is usually a multiple of EBITDA — but the EBITDA on the seller's information memorandum is rarely the number the deal closes on. For a private credit fund or senior lender, the same figure decides how much debt the business can actually service without breaching a covenant. A Quality of Earnings (QofE) analysis is the work that separates the headline number from the defensible one, and getting it wrong is expensive on both sides of the capital structure.
Key takeaways
- A QofE assesses whether reported earnings are real, recurring, and likely to persist after close — it normalizes EBITDA, and it is the analytical core of buy-side and sell-side financial due diligence.
- A QofE is not an audit and an audit is not a QofE. An unqualified audit opinion says nothing about whether earnings recur or whether add-backs are legitimate, and QofE figures should never be described as "audited."
- Add-backs are contested, not arithmetic. A seller's "one-time" cost is often a recurring cost in disguise, and the aggregate of disputed adjustments is frequently the negotiation itself.
- Adjustments cut both ways. A rigorous QofE surfaces items that reduce EBITDA — under-accrued liabilities, run-rate of lost customers, deferred-maintenance capex — not just the seller's favourable add-backs.
- Lenders and PE read the same report inversely. The buyer wants the highest defensible EBITDA to justify price; the lender wants the most conservative sustainable EBITDA to protect the loan. The provider's independence is what lets one report serve both.
What a Quality of Earnings analysis actually answers
A QofE assesses the sustainability, accuracy and economic substance of a target's reported earnings, with normalized EBITDA at its centre. The governing question is practical rather than technical: how much of this earnings stream is real, recurring, and likely to persist post-close — and what should a buyer pay for it, and a lender lend against it?
That orientation is what distinguishes a QofE from a statutory audit. An audit answers a different question entirely: are these financial statements prepared in accordance with GAAP or IFRS? It produces a formal opinion offering reasonable assurance, it is backward-looking, and it typically focuses on a single most-recent reporting period. A QofE provides no formal opinion and no assurance. It is advisory analysis. Its conclusions carry the advisor's professional judgment, and — this is important for any reader treating a QofE as gospel — they can legitimately differ between competent providers looking at the same data.
The two are complementary, not interchangeable. An audit confirms conformity with accounting standards but says nothing about whether the earnings recur or whether a given add-back is defensible. A QofE interrogates exactly those questions but offers no assurance on the financial statements as a whole. A QofE is not a substitute for an audit, and an audit is not a substitute for a QofE.
Three structural differences follow from this:
- Time horizon. An audit looks at one period; a QofE is trend-oriented, usually covering two to three years plus the latest twelve months (LTM/TTM).
- Granularity. A QofE works at the account, customer and monthly level, not just at the annual financial-statement level.
- Underlying data quality. Many lower-middle-market targets are unaudited, or only reviewed or compiled. There may be no auditor's reasonable assurance underneath the numbers at all — which is precisely why a QofE includes its own validation procedures.
Proof of cash: validating that the earnings are real
Because so many targets lack audited statements, a QofE includes a proof-of-cash procedure. The analyst reconciles reported revenue and earnings to bank statements and actual cash receipts, confirming that the reported results are backed by real cash movement rather than aggressive recognition or journal entries.
This is the floor beneath everything else. There is no point debating the legitimacy of a $300k owner-compensation add-back if the underlying revenue cannot be tied to money that actually arrived in the bank. Proof of cash is one of the standard sections of a QofE report, which typically runs:
- Executive summary and key findings
- The Adjusted EBITDA bridge
- Quality of Revenue — customer concentration, revenue recognition, recurring versus one-time, pricing and volume dynamics, cohort retention
- Proof of Cash
- Net Working Capital analysis and the proposed peg
- Net Debt and debt-like items
- Quality of Assets — accounts-receivable ageing, inventory obsolescence, capex adequacy
- Financial controls, reporting quality and management depth
The Adjusted EBITDA bridge sits at the centre of that report — and it is where the negotiation lives.
The Adjusted EBITDA bridge
The bridge walks from reported earnings to a normalized, sustainable EBITDA figure through a sequence of adjustments. Each adjustment falls into one of a small number of recognised types, and — separately — each is tagged by who proposed it. Both classifications matter.
The taxonomy of adjustments (by type)
- Non-recurring / one-off. Remove items not expected to continue: litigation settlements, restructuring or severance, gains and losses on asset sales, a facility relocation. Note the direction: removing a one-time expense increases Adjusted EBITDA; removing a one-time gain decreases it.
- Normalization / add-backs. Remove non-operational, discretionary or owner-related items: above-market owner compensation, related-party rent on non-arm's-length terms, personal expenses run through the business.
- Run-rate / annualization. Annualize a known event that only partially hit the period — a customer contract signed mid-year grossed up to twelve months. The same logic applies in reverse: a lost customer is run-rated downward.
- Pro-forma. Reflect known structural changes not yet fully in the financials — go-forward market-rate management compensation, standalone public-company or audit costs, or the effect of an acquisition or divestiture as if the business had owned it for the full period.
- Accounting-policy / standards conformity. Adjust for revenue cut-off, inventory valuation, or capitalization-versus-expensing decisions to bring the numbers onto a consistent basis (Valutico's QofE adjustments guide walks through each of these categories in detail).
The taxonomy that lenders and PE care about most (by who proposed it)
Adjustments are also bucketed by their source. Management adjustments are proposed by the seller or target management. Due-diligence (DD) adjustments are identified by the QofE provider — including direct challenges to management's add-backs. This management-versus-DD split is what sophisticated capital allocators read first, because it shows how much of the "adjusted" number rests on the seller's own assertions versus independent scrutiny.
A worked bridge
The following illustrates how these adjustments stack (all figures in $000s):
| Line item | Type | Amount |
|---|---|---|
| Reported net income | 1,000 | |
| + Interest | 150 | |
| + Taxes | 350 | |
| + Depreciation & amortization | 500 | |
| = Reported EBITDA | 2,000 | |
| + Owner above-market compensation | Normalization | 300 |
| + Litigation settlement | Non-recurring | 250 |
| + Personal expenses in COGS / SG&A | Normalization | 100 |
| − Go-forward CFO hire | Pro-forma | (180) |
| + New-customer run-rate (6mo → 12mo margin) | Run-rate | 220 |
| − Under-accrued PTO / warranty | DD / accounting | (90) |
| = Adjusted EBITDA | 2,500 |
The arithmetic is the easy part. The significance is in what the bridge implies about value. At a 6.0x multiple, the $500k spread between Reported EBITDA (2,000) and Adjusted EBITDA (2,500) is $3.0m of enterprise value — and every dollar of it rides on whether the add-backs survive scrutiny. That is why this section is the most negotiated in the entire deal.
Why add-backs are contested, not arithmetic
It is tempting to treat the bridge as a clerical exercise: list the adjustments, sum them, move on. That misreads what a buy-side QofE is for. Add-backs are inherently contested. A seller's "one-time" cost is frequently a recurring cost in disguise — the litigation that recurs because it reflects a structural dispute with a customer class, the "non-recurring" consultant who has been engaged every year for four years, the relocation that is part of a rolling estate strategy.
A rigorous buy-side QofE therefore demands original documentation for each add-back — invoices, contracts, settlement agreements — and rejects estimates taken on faith (Baker Tilly's overview of a quality of earnings study sets out this evidentiary discipline). The aggregate of the disputed add-backs frequently is the negotiation. When a buyer and seller are $400k apart on EBITDA at a 6x multiple, they are $2.4m apart on price, and that gap is closed in the diligence room, not the boardroom.
Two further points an expert reader will hold you to:
Adjustments cut both ways. A genuine QofE is not a one-directional exercise in inflating the number. It also surfaces adjustments that reduce EBITDA: under-accrued liabilities, costs that were capitalized but should have been expensed, the run-rate effect of customers already lost, and deferred-maintenance capex that flatters current margins at the expense of future ones. A QofE that contains only favourable add-backs is a sell-side marketing document, not diligence.
"EBITDA quality" is not a single ratio. Some treatments reduce the entire discipline to a Quality of Earnings Ratio — Cash Flow from Operations divided by Net Income. That ratio is a useful screening signal: a business converting a high proportion of earnings into operating cash is, all else equal, lower-risk than one that is not. But it is not what a transaction QofE delivers, and treating the ratio as the QofE is an oversimplification a sophisticated counterparty will catch immediately. The screen tells you whether to look harder; the QofE is the looking.
How lenders and PE use a QofE differently
The same report serves two audiences who read it in opposite directions.
Private equity and financial buyers use a QofE to validate the purchase-price multiple. They want to confirm the EBITDA base the multiple is applied to, stress-test the growth and margin assumptions behind the forecast, identify debt-like items that belong in the equity bridge, and arm themselves for price renegotiation where the diligence findings warrant it. Their orientation balances upside against downside protection — they are buying the equity, so they care about both.
Lenders and private-credit funds use a QofE to size and protect debt capacity and covenant headroom. Their focus is overwhelmingly on the downside and on cash servicing: how much sustainable, cash-generative EBITDA actually exists to service the debt. That EBITDA figure drives the leverage ratio (Net Debt ÷ Adjusted EBITDA), the coverage ratios, and the lender's read on the reliability of the cash conversion cycle and the legitimacy of every add-back.
This is why lenders are typically more conservative on add-backs than buyers. An inflated EBITDA understates true leverage — a business that looks like 4.0x leverage on management's adjusted number may be 5.0x on a defensible one — and that understatement is precisely the risk a lender is paid to avoid. It is also why credit agreements frequently cap "EBITDA adjustments" or "add-backs," often as a percentage of EBITDA. Aggressive normalization is a known and documented risk in leveraged finance, and the cap is the contractual answer to it.
The key nuance is that the buyer and the lender want different numbers from the same analysis. The buyer wants the highest defensible EBITDA to justify the price it is paying. The lender wants the most conservative sustainable EBITDA to protect the loan it is making. What allows a single report to serve both honestly is the independence of the provider — an advisor whose conclusions are not steered toward either party's preferred answer (Anders' due-diligence guide frames the QofE as exactly this kind of independent analytical input).
A note on UK and US practice
"Quality of Earnings" is US-origin vocabulary that has been adopted globally, but the packaging differs by market. In the UK, the equivalent work usually sits inside a Financial Due Diligence (FDD) report — historically the "long-form" or reporting accountant's report — with QofE and normalized-EBITDA analysis as a workstream rather than a standalone deliverable.
The accounting basis differs accordingly: US targets are normalized to US GAAP, while UK and European targets are normalized to IFRS or UK GAAP (FRS 102). There is also a meaningful difference in reliance. UK reporting-accountant FDD reports more commonly carry formal reliance letters and duty-of-care, sometimes extended to lenders. US advisory QofE reports are usually addressee-restricted with third-party reliance disclaimed — a distinction that matters when a lender is deciding whether it can rely on a buy-side report it did not commission.
Frequently asked questions
Is a Quality of Earnings report the same as an audit?
No. An audit gives a formal opinion on whether financial statements conform to GAAP or IFRS, with reasonable assurance, looking backward at a single period. A QofE is forward-leaning advisory analysis of whether earnings are sustainable and recurring; it offers no opinion and no assurance, and its conclusions reflect the advisor's judgment. They answer different questions and neither replaces the other. QofE numbers should never be described as "audited."
What is "proof of cash" and why does it matter?
Many lower-middle-market targets are unaudited, reviewed, or compiled, so there is no auditor's assurance beneath the reported figures. Proof of cash reconciles reported revenue and earnings to bank statements and actual cash receipts, confirming the numbers are backed by real money movement. It is the validation step that makes the rest of the analysis meaningful.
Why are EBITDA add-backs so heavily negotiated?
Because a small movement in EBITDA, multiplied by the deal multiple, moves the price by a large amount — a $500k swing at 6x is $3.0m of enterprise value. Add-backs are also genuinely contestable: a "one-time" cost is often recurring in disguise. Rigorous diligence demands original documentation for each add-back rather than accepting management's estimates, and the aggregate of the disputed items frequently is the negotiation.
Why do lenders treat a QofE more conservatively than buyers?
A lender's exposure is the loan, and an inflated EBITDA understates true leverage (Net Debt ÷ Adjusted EBITDA) and overstates covenant headroom. The most aggressive defensible number works in a buyer's favour but against a lender's. That asymmetry is why credit agreements frequently cap permitted EBITDA adjustments as a percentage of EBITDA, and why lenders scrutinise the legitimacy of add-backs and the reliability of cash conversion more closely than upside.
How DiligenceForge approaches quality of earnings
DiligenceForge treats a QofE as a matter of judgment, not a template. Experienced practitioners drive the analytical conclusions — the challenge to an add-back, the proposed net working capital peg, the read on whether earnings recur — while data work is accelerated so that more time is spent on judgment and less on reconciliation. Every figure traces back to its source document, the process is confidentiality-first, and the work is built to serve private lenders and investors who need a number they can defend to a credit committee or an investment committee.
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