The short answer
What does financial due diligence actually tell a buyer?
Financial due diligence investigates the earnings, cash needs and balance-sheet exposures behind a deal. The objective is to understand what the buyer is acquiring, which assumptions support the price and which findings belong in the transaction terms. It is different from a financial statement audit.
Start with four questions
A quality-of-earnings review, often called QoE, is one part of financial diligence. Scope depends on the business and the transaction. Start with monthly financial statements and reconcile them to the underlying records before building a story around growth.
| Question | Evidence to inspect |
|---|---|
| Are earnings repeatable? | Revenue by customer and product, gross margins, EBITDA adjustments and recurring costs. |
| Does profit turn into cash? | Receivable aging, collections, inventory, deferred revenue and cash-flow history. |
| What comes with the purchase? | Debt, leases, unpaid taxes, employee obligations and other agreed debt-like items. |
| What cash must remain in the business? | Seasonality, normalized working capital and the closing working-capital definition. |
References: PwC: Financial due diligence
EBITDA adjustments can go in both directions
In this fictional business, reported EBITDA is $1,000,000. A supported $100,000 nonrecurring legal cost is added back. A missing $150,000 annual management cost is deducted. Adjusted EBITDA is $950,000, not $1,100,000.
An expense labeled one-time may recur in a different form. Require invoices, payroll records or other support. Separate historical normalization from a buyer’s future synergies, and avoid adding back a cost that the business still needs to operate. Adjusted EBITDA remains different from cash flow because it excludes items such as capital spending and working-capital investment.
Try it yourself
Follow the purchase-price bridge
Illustrative cash-free, debt-free transaction with a symmetric working-capital adjustment. All amounts in USD. Actual agreement definitions control.
| Bridge | Amount |
|---|---|
| Enterprise value | $10,000,000 |
| Less debt and agreed debt-like items | -$2,000,000 |
| Add included cash | $500,000 |
| Add / subtract working-capital adjustment | -$200,000 |
| Equity purchase price | $8,300,000 |
Other transaction adjustments are excluded. Negative equity value remains visible; it is not silently set to zero.
Bridge enterprise value to the closing equity price
Suppose the agreed enterprise value is $10 million on a cash-free, debt-free basis with normalized working capital. Deduct $2 million of debt, add $500,000 of cash and deduct a $200,000 working-capital shortfall. The illustrative equity purchase price is $8.3 million before other agreed adjustments.
The working-capital peg is the negotiated normal level of specified operating current assets less specified operating current liabilities. In this example, the target is $1 million and closing working capital is $800,000. The shortfall reduces the price by $200,000. Excess working capital would increase it under a symmetric adjustment.
The purchase agreement controls the definitions, accounting hierarchy, measurement date and dispute process. Cash, debt and debt-like items must not also be counted in working capital. Deferred revenue, transaction expenses and lease liabilities need an explicit treatment rather than a universal rule.
A focused first request list
Ask for a consistent period and a clear cutoff. Monthly detail helps reveal seasonality that annual totals hide. Record what has been reconciled, what is still missing and what could change the conclusion.
- Monthly income statements, balance sheets, general ledger and bank reconciliations.
- Revenue and margin detail by customer, contract, product and channel.
- Receivable and payable aging, inventory detail and subsequent cash receipts.
- Debt agreements, lease schedules, tax balances and transaction-related obligations.
- Support for every proposed EBITDA adjustment and management forecast.
- A working-capital schedule using the same definitions as the proposed deal terms.
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Common questions
A few useful clarifications
Is a QoE report an audit?
No. A transaction-focused QoE analysis investigates earnings and related deal questions within an agreed scope. It does not provide the same opinion or assurance as a financial statement audit.
Should every one-time expense be added back?
No. Establish what happened, whether the cost is necessary to operate and whether it is likely to recur. A buyer may reasonably reject an unsupported or recurring adjustment.
Sources & scope
Reviewed October 9, 2026. Numerical cases are fictional teaching examples, not current market quotes or individual advice. Assumptions appear beside each calculation. Rules, program requirements and source material can change.
- PwC: Financial due diligenceScope of diligence, earnings, working capital and cash flows. The numerical cases here are original teaching examples.
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