Quality of Earnings
Executive Summary
Key Takeaways
- ✓ Quality of earnings analysis reconciles a target's reported EBITDA to a normalized figure by removing one-off, non-recurring, and non-operational items, producing the earnings base most transaction valuation multiples are applied to.
- ✓ Every quality of earnings adjustment should trace to a specific, evidenced transaction or accounting entry — an unsupported adjustment presented only as a net figure cannot be independently challenged or verified.
- ✓ Common adjustment categories include one-off gains or losses, non-recurring restructuring or transaction costs, non-operational owner compensation or related-party transactions, and accounting policy differences between the target's historical presentation and the buyer's standards.
- ✓ Because normalized EBITDA is typically the base a valuation multiple is applied to, an aggressive or unsupported adjustment has a direct, multiplied effect on price — a $1 million unsupported EBITDA adjustment translates into several million dollars of overstated enterprise value at a typical mid-market multiple.
- ✓ Quality of earnings analysis is distinct from a forward-looking financial model review — it establishes whether the historical earnings baseline is reliable, while a model review tests whether the forecast built on top of that baseline is structurally sound.
Definition¶
Quality of earnings (QoE) analysis reconciles a target's reported EBITDA to a normalized figure by removing one-off, non-recurring, and non-operational items, producing a figure that more reliably represents sustainable, ongoing earnings. It is the central deliverable of Financial Due Diligence within the M&A and Transaction Due Diligence pillar.
Adjustment Categories¶
| Category | Example | Why Adjusted |
|---|---|---|
| One-off items | A litigation settlement, a one-time asset sale gain or loss | Not expected to recur and would distort a run-rate view of earnings |
| Non-recurring items | A restructuring charge, a one-time system migration cost | Unlikely to repeat in the ordinary course of future operations |
| Non-operational items | Owner compensation above or below market rate, related-party transactions | Not representative of what an arm's-length, professionally managed operation would incur |
| Accounting policy differences | Revenue recognition or inventory valuation method differing from buyer standards | Ensures the normalized figure is comparable on a consistent accounting basis |
Why the Multiplier Effect Matters¶
Normalized EBITDA is typically the earnings base a transaction's valuation multiple is applied to, which means any adjustment — supported or unsupported — has a direct, multiplied effect on the resulting enterprise value. An unsupported $1 million upward EBITDA adjustment, applied against a typical mid-market multiple of several times EBITDA, can translate into several million dollars of overstated price — making the traceability of each individual adjustment one of the highest-leverage points in the entire due diligence process.
Audit Considerations¶
- Confirm every adjustment traces to a specific, evidenced transaction or accounting entry, not a single unsupported net figure
- Confirm adjustments are applied consistently across the full trailing period used, not selectively to periods that produce a favorable result
- Confirm non-operational adjustments (such as above-market owner compensation) are benchmarked to a defensible market reference, not an arbitrary buyer-side assumption
- Confirm the normalized EBITDA figure used in the transaction model matches the quality of earnings report's conclusion exactly
Common Errors¶
| Error | Description | Risk |
|---|---|---|
| Unsupported net adjustment | A single aggregate normalization figure presented with no line-item detail | Cannot be independently verified or challenged |
| Selective period application | Adjustments applied only to periods that improve the resulting average | Normalized EBITDA does not represent a genuine, consistent baseline |
| Aggressive non-operational reclassification | Ordinary operating costs reclassified as non-operational to inflate the normalized figure | Overstates sustainable earnings and, by extension, price |
| Model-report mismatch | The transaction model uses a different normalized EBITDA figure than the QoE report concluded | The due diligence finding was not actually reflected in the pricing |
Continue Reading¶
Prerequisites¶
- Financial Due Diligence — the parent guide
- M&A and Transaction Due Diligence
Related Glossary¶
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Frequently Asked Questions
What is quality of earnings analysis?
The reconciliation of a target's reported EBITDA to a normalized figure, removing one-off, non-recurring, and non-operational items, producing a figure that more reliably represents sustainable, ongoing earnings and typically serves as the earnings base a valuation multiple is applied to.
Why does an unsupported quality of earnings adjustment matter so much?
Because normalized EBITDA is typically the base a valuation multiple is applied to, so any adjustment has a direct, multiplied effect on price — an unsupported $1 million EBITDA adjustment can translate into several million dollars of overstated enterprise value at a typical transaction multiple.
What are common quality of earnings adjustment categories?
One-off gains or losses (an asset sale, a litigation settlement), non-recurring items (a restructuring charge unlikely to repeat), non-operational items (owner compensation above market rate, related-party transactions), and accounting policy differences between the target's historical presentation and the buyer's own standards.
How should quality of earnings adjustments be presented for audit purposes?
As a detailed, line-by-line reconciliation from reported to normalized EBITDA, with each adjustment traced to a specific, evidenced transaction or accounting entry — a single net adjustment figure cannot be independently verified or challenged.
How is quality of earnings different from a financial model review?
Quality of earnings establishes whether the target's historical earnings baseline is reliable and normalized. A financial model review tests whether the forward-looking forecast built on top of that baseline is structurally sound and calculates correctly — the two are sequential and complementary, not substitutes.
Related Articles
Financial Due Diligence
Financial due diligence investigates a target company's historical financial performance — earnings quality, working capital trends, net debt, and off-balance-sheet obligations — to establish a reliable, normalized baseline before a transaction is priced. It is distinct from a forward-looking financial model review: financial due diligence establishes what actually happened historically and whether reported earnings are a reliable indicator of sustainable performance, while a model review tests whether the forecast built on top of that baseline is structurally sound. This guide covers financial due diligence's core areas and how its outputs — normalized EBITDA, the net working capital peg, net debt — flow directly into deal pricing.
M&A and Transaction Due Diligence
Transaction due diligence is the structured process by which a party to a proposed transaction — most often a buyer, but also a seller preparing for sale or a lender financing the deal — investigates a target business before committing capital. It is organized into distinct workstreams (financial, commercial, operational, technical, legal, tax, ESG), run from one of three process postures (buy-side, sell-side, or vendor), and its findings feed directly into the financial model used to price the transaction and support the investment decision. This page is the hub for the Knowledge Centre's transaction due diligence content: what due diligence is, how each workstream and process posture differs, and how model risk specifically enters a transaction — the angle this platform is built to address in depth.
Net Working Capital Peg
The net working capital peg is a target level of net working capital, established during financial due diligence and written into the purchase agreement, against which the target's actual net working capital balance at closing is measured. Any shortfall below the peg reduces the purchase price, and any excess above it increases the purchase price, dollar for dollar — making the peg's calculation methodology one of the most commercially significant, and most frequently disputed, mechanics in a transaction.
Contribution Margin
Contribution margin is revenue less directly attributable variable cost, calculated before any shared corporate overhead is allocated. It measures the amount a unit, product, or segment's own sales activity contributes toward covering shared fixed costs and, beyond that, toward group profit — distinct from a fully allocated profit figure, which also deducts a share of overhead the unit's own management typically does not control.