A quality of earnings report validates profit, not the whole business. See the commercial, people, systems, and legal diligence that follows M&A financial diligence.
A clean quality of earnings report feels like a green light. The adjusted EBITDA holds, the add-backs are accepted, and the owner assumes the hard part is done. For the buyer, the work has only started.
A QoE answers one important question: what did this business really earn? It does not test whether customers will stay, whether key people will remain, whether the contracts transfer, or whether the systems and records are sound. Those questions belong to the rest of diligence, and they decide whether the deal closes on the agreed terms.
This guide explains what M&A financial diligence does and does not cover, and how owners can prepare for the work that follows the numbers.
What a QoE Does and Does Not Answer
A quality of earnings report examines the financial statements and restates earnings to reflect the true, sustainable profit of the business. It tests revenue recognition, one-time items, accounting policies, and the owner's adjustments. It is the buyer's check on whether reported profit is real.
It does not answer:
- Whether the largest customers will renew.
- Whether key employees will stay after closing.
- Whether contracts allow a change of control.
- Whether the systems, records, and data are reliable.
- Whether there are tax, employment, or compliance exposures.
A QoE is the financial foundation. Everything else is built on top of it.
For the owner-side view of the adjustments buyers accept, see our guide to EBITDA add-backs and quality of earnings.
Commercial Diligence and Revenue Durability
Commercial diligence tests whether the revenue in the QoE will continue. Buyers look at customer concentration, contract terms, pricing history, pipeline quality, and market durability.
Owners should expect questions such as:
- Who are the top customers, and what share of revenue do they represent?
- Are the customers under contract, and for how long?
- What is the retention and churn history?
- How is pricing set, and has it held?
- How much revenue depends on the founder or one salesperson?
A strong QoE with a concentrated, founder-dependent customer base is a fragile deal. The commercial work is where that risk surfaces.
People, Contracts, and Compliance
The people and contract workstreams often decide whether a deal can close at all.
- Employment. Key employees, compensation, retention, non-competes, and any classification issues.
- Benefits and HR. Plans, obligations, and any unfunded liabilities.
- Customer and supplier contracts. Change-of-control clauses, termination rights, and assignment limits.
- Licenses and permits. Whether the business can keep operating after a change of ownership.
- Regulatory and legal. Litigation, claims, IP ownership, and compliance with industry rules.
Each item either clears, or becomes a condition, a holdback, or a re-trade. Owners who surface these issues early keep control of the narrative.
Systems, Data, and Cybersecurity
Modern diligence goes beyond spreadsheets. Buyers examine the systems that run the business and protect its data.
They ask about:
- The core operating and accounting systems, and how well they are maintained.
- Data quality and whether reporting can be trusted.
- Access controls and who can change critical records.
- Backup, recovery, and business continuity.
- Cybersecurity posture, incidents, and any customer data obligations.
A services business can carry real risk here. A single unresolved data incident or an unsupported system can slow a closing or change its terms.
The Dataroom Is Not the Diligence Plan
A dataroom is a repository. A diligence plan is a map of what the buyer will test, in what order, and with whom.
Owners who treat the dataroom as the plan end up reacting to request lists for months. Owners who build the plan first load the right documents, line up the right people for management calls, and keep the process moving.
A practical preparation approach:
- List each diligence workstream and the likely owner of each.
- Gather the core documents for each workstream in advance.
- Prepare the management team for interviews and site visits.
- Keep a running log of every request, owner, and due date.
- Resolve known issues before the buyer finds them.
How to Prevent Late-Stage Surprises
Most late surprises are known to someone in the business long before diligence begins. The goal is to find them first.
- Run an internal diligence review before going to market.
- Fix or disclose contract, employment, and tax issues early.
- Align the QoE and the borrower's other records with reality.
- Rehearse the customer, employee, and systems questions.
- Keep the data room indexed and current.
A clean QoE opens the door. Preparation gets the deal through it. Build a practical diligence-readiness plan. Bull Holdings can help you map the workstreams buyers will run, prepare the records and people they will test, and keep the process on schedule from the first request list to closing.
This article reflects general market observations in the lower middle market advisory space. Owners considering a transaction should consult with a qualified M&A advisor and legal counsel specific to their situation and industry.
Sources to verify before publishing
No external statistics are cited in this draft.
- diligence
- m&a-process
- sell-side