A practical guide to quality of earnings due diligence — how PE, search funds, and M&A teams separate cash-backed run-rate earnings from management story EBITDA before price and structure lock.
Quality of earnings (QoE) asks a blunt question: if ownership changes tomorrow, which dollars of EBITDA still show up in cash? GAAP net income and management-adjusted EBITDA are starting points, not the answer. Buyers re-cut the P&L for recurrence, cash conversion, accounting policy, related-party economics, and one-time noise.
QoE sits inside financial due diligence. It is not an audit opinion and not tax advice. It is underwriting: the bridge from reported results to a defensible purchase-price earnings base and a working-capital peg you will not regret at close.
| Work product | Primary question | Typical owner | Output |
|---|---|---|---|
| Audit | Fair presentation under GAAP? | Independent auditors | Opinion + footnotes |
| Financial DD | What is the full financial risk package? | Buy-side advisors / FDD team | QoE + debt-like + tax + systems |
| Quality of earnings | What is sustainable cash EBITDA? | QoE / FDD specialists | Adjustment bridge + WC analysis |
| Public-info first pass | Is this name worth exclusivity fees? | Deal team / screening tools | Kill flags + IC questions |
Concentration, contract length, channel mix, bill-and-hold, pull-forward, refunds, and related-party sales. Ask whether growth is volume, price, or accounting.
Inventory costing, freight, warranty, scrap, and capitalization policies. Sudden margin expansion without ops change is a classic yellow flag.
Owner pay, personal expenses, one-time legal, restructuring, and “synergy” add-backs that fail a cash test. Every add-back needs evidence and recurrence logic.
Depreciation methods, stock-based comp, reserve releases, revenue recognition changes, and prior-period restatements.
DSO/DIO/DPO trends, seasonality, factoring, payables stretch, and whether the balance sheet is dressed for sale.
EBITDA-to-FCF bridge, capex intensity, deferred revenue, customer deposits, and debt-like items (customer credits, unpaid taxes, litigation reserves).
| Adjustment type | Buyer bias | What good evidence looks like |
|---|---|---|
| Owner compensation above market | Often add back excess | Comparable role comps + replacement hire plan |
| Related-party rent / fees | Normalize to arm’s length | Lease terms vs market comps |
| One-time legal / settlement | Add back if truly non-recurring | Case closed + no pipeline of similar claims |
| Restructuring / COVID / weather | Scrutinize; often sticky | Detailed cost roll-forward, not a single line |
| New customer ramp costs | May capitalize in model, not P&L | Cohort payback data |
| Reserve releases boosting income | Usually reverse | Reserve policy history vs peers |
| Non-cash SBC / FX / fair value | Case-by-case | Cash vs non-cash split + future burn |
| “Pro forma” cost cuts | Discount until executed | Named actions, owners, dates |
Earnings quality without a working capital bridge is incomplete. Buyers set a WC peg so sellers cannot strip cash via receivables acceleration or payables stretch right before close. Normalize for seasonality, backlog, and customer concentration. Test whether reported growth requires permanent WC investment that will not be funded in the model.
Pair the WC analysis with debt-like items: deferred revenue, gift cards, customer prepayments, unpaid payroll taxes, and environmental or warranty liabilities that behave like debt at close.
Boutique / Big Four quality-of-earnings often runs $40K–$250K+ and 2–6 weeks. A structured public-info pack at $49 (or $39.20 with launch code) will not replace confirmatory accountants — it kills weak names before you burn exclusivity and fee budget.
| Signal | Severity | Why it matters |
|---|---|---|
| Revenue jumps at quarter-end with clawbacks later | Deal-Killer | Channel stuffing / pull-forward |
| Customer >25% of revenue with short contract | High | Earnings not diversified |
| Gross margin up, inventory turns down | High | Possible overstatement or aging stock |
| Large “other income” or credit memos | High | Earnings not from core ops |
| Related-party sales or cost sharing | High | Transfer pricing risk at exit |
| DSO rising faster than sales | Watch | Collection / quality risk |
| Add-backs >15% of EBITDA without detail | Deal-Killer | Story EBITDA, not cash |
| Audit qualifications or late filings (public) | Deal-Killer | Control / integrity risk |
Interactive checklist for IC prep. Tag severity as you work: Deal-Killer / High / Watch.
| Approach | Typical cost | Typical time | Best use |
|---|---|---|---|
| Big Four / top boutique QoE | $75K–$250K+ | 3–6 weeks | Confirmatory on signed LOI |
| Mid-market specialist QoE | $40K–$120K | 2–4 weeks | Most PE mid-market deals |
| Internal analyst rebuild | Opportunity cost | 1–3 weeks | Simple models, high trust data |
| dodilligence first-pass PDF | $49 ($39.20 launch) | 3–24s (median 15s · 4 real orders) | Pre-LOI triage & IC questions |
dodilligence delivers structured public-information diligence PDFs — financial snapshot, risk register, legal/regulatory hits, competitive context, and IC workplan questions. Use it to pressure-test whether a name deserves a full QoE retainer, not as a substitute for confirmatory accountants.
Analysis of how sustainable and cash-backed reported earnings are. QoE adjusts reported EBITDA for non-recurring, non-cash, related-party, and policy items so buyers underwrite a defensible run-rate.
Audits opine on fair presentation under GAAP. QoE is buy-side underwriting of cash earnings under new ownership. Different question, different output.
Owner pay above market, related-party rent, one-time legal/restructuring, non-recurring revenue, reserve releases, and add-backs that fail cash or recurrence tests.
Often 2–6 weeks depending on data room quality and deal size, with fees from tens to hundreds of thousands of dollars.
An explanation of NWC changes that supports a fair purchase-price peg and flags seasonality, collection risk, and payables stretch.
Public-info screen before LOI; full QoE in confirmatory. Early kills protect exclusivity weeks and advisor fees.
No. QoE is a core workstream inside financial DD. Full FDD also covers debt-like items, tax, systems, and projections. See financial due diligence.
Yes for triage. Structured public-info packs surface concentration, litigation, and financing signals early. Screening materials only — not an audit or accounting opinion.
Institutional-style PDF from public sources — $49 list, $39.20 with code DI20-WELCOME. Dual legal acceptance at checkout.
Order report $39.20 → Sample report