M&A Due Diligence: The Financial and Valuation Due Diligence Buyers Actually Need

Q: Why does working capital matter so much in due diligence?

Most sale and purchase agreements adjust the final price based on working capital delivered at completion against an agreed target. A target benchmarked to a single, seller-optimised balance sheet date rather than a trailing average can let the seller extract cash the buyer should have received.

Q: What debt-like items are commonly missed in net debt calculations?

Accrued end-of-service or gratuity liabilities, unfunded leave balances, related-party loans, deferred consideration from prior acquisitions, and provisions for known disputes or claims are the items most frequently omitted from a seller-prepared net debt figure.

Q: Can financial due diligence findings change the purchase price?

Yes. Findings routinely translate into a lower normalised EBITDA, a higher working capital completion target, or a specific net debt deduction, all of which reduce the price actually paid at completion compared with the original letter of intent figure.

Q: What happens if serious issues are found during due diligence?

Depending on severity, findings typically lead to a renegotiated price, a restructured earn-out that shifts risk to the seller, specific warranties and indemnities in the sale and purchase agreement, or in the most serious cases, the buyer walking away entirely.

By Bill Anderson, FCCA, Chief Executive Officer, Assetica · Published 2026-08-05

M&A Due Diligence: The Financial and Valuation Due Diligence Buyers Actually Need (Assetica, independent business valuation, Dubai)

Direct Answer: Financial and valuation due diligence is the buyer’s independent review of a target company’s numbers after a price has been agreed in principle. It tests whether reported earnings, net debt and working capital reflect economic reality. It also tests whether the assumptions used to reach the headline valuation actually hold up. It is distinct from legal and tax due diligence, and it is the stage most likely to change the final price. A normalised EBITDA that comes in lower than the seller claimed, or a working capital shortfall identified before completion, both flow directly into a lower purchase price or a post-completion adjustment. Buyers who skip it, or treat it as a formality, routinely overpay for earnings that were never really there.

Financial documents and reports being reviewed during M&A due diligence

What Is Financial and Valuation Due Diligence?

Financial and valuation due diligence is the structured, evidence-based review a buyer commissions after signing a letter of intent or heads of terms. It happens before signing a binding sale and purchase agreement. It has one job: confirm, or correct, the numbers the indicative price was built on.

That splits into two related but distinct exercises. Financial due diligence tests the quality and sustainability of the target’s historic and current financial performance: its earnings, cash generation, debt position and working capital. Valuation due diligence goes a step further and interrogates the assumptions inside the valuation model itself. That means the growth rate, the margin trajectory, the discount rate and the comparable companies used. For each one it asks whether the assumption is defensible, or simply optimistic.

Financial, Legal and Tax Due Diligence Are Not the Same Exercise

Buyers sometimes assume one due diligence workstream covers everything. It does not. Each workstream answers a different question, and a gap in one is rarely caught by another.

Workstream	Central Question
Financial due diligence	Are the reported earnings, cash flow and net debt real, sustainable and correctly stated?
Valuation due diligence	Do the assumptions behind the agreed price actually hold up under scrutiny?
Legal due diligence	Are the contracts, titles, licences and corporate structure clean and transferable?
Tax due diligence	Are there historic tax exposures the buyer would inherit as the new owner?

Why Financial and Valuation Due Diligence Matters

A letter of intent price is built on management-prepared numbers, reviewed quickly and often before the buyer has full data room access. Financial and valuation due diligence is the point at which those numbers get tested properly, and it is the stage that most often moves the final price.

It resets the earnings base the price is built on. A quality of earnings review strips out one-off items, related-party adjustments and aggressive revenue recognition. It frequently produces a normalised EBITDA lower than the figure in the information memorandum, and that flows straight through any earnings multiple into a lower price
It surfaces hidden and debt-like liabilities. Overdue end-of-service benefits, unfunded leave liabilities, related-party loans and off-balance-sheet commitments all reduce the equity value a buyer should pay, even when they never appear as conventional debt
It tests whether working capital is genuinely normal. Sellers routinely optimise working capital before a sale, delaying payables, accelerating collections, running down stock. A completion mechanism without a properly benchmarked target lets that optimisation pass straight through to the buyer as cash
It stress-tests the valuation model, not just the accounts. A DCF built on an unsustainable growth rate can look defensible on paper and still be wrong. So can a market approach anchored to the wrong comparable set. Valuation due diligence exists to catch that before completion, not after

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What Financial Due Diligence Actually Covers

Quality of Earnings

The centrepiece of any financial due diligence review is the quality of earnings analysis, usually shortened to QoE. Rather than accepting the target’s reported EBITDA at face value, the reviewer rebuilds it from underlying management accounts. The adjustments cover one-off items, non-recurring costs, owner remuneration above market rate, related-party transactions priced off-market, and revenue that was pulled forward or recognised too early. The output is a normalised, run-rate EBITDA that a buyer can actually rely on to set the multiple.

Net Debt and Debt-Like Items

Enterprise value converts to equity value by subtracting net debt, so an incomplete net debt figure understates what the buyer actually has to pay. Beyond bank borrowings, a competent review identifies the debt-like items sellers routinely omit. Those are accrued end-of-service gratuity, unfunded pension or leave liabilities, deferred consideration from prior acquisitions, related-party balances due to shareholders, and provisions for known claims or disputes.

Working Capital

Most sale and purchase agreements include a completion mechanism. It adjusts the final price if working capital delivered at completion differs from an agreed target. Financial due diligence establishes what a normal, sustainable working capital level actually looks like. That is based on a trailing twelve-month average, rather than a single balance sheet date the seller may have deliberately optimised. Getting this target wrong is one of the most common sources of post-completion disputes.

Cash Flow and Cash Conversion

Reported profit and cash generated are rarely the same number. The review traces how reliably reported EBITDA converts into operating cash. A business with strong margins but poor cash conversion is worth less than the multiple alone suggests. Poor conversion is usually driven by extended receivables, high stock levels or capital-intensive operations.

What Valuation Due Diligence Actually Covers

Where financial due diligence tests the historic numbers, valuation due diligence tests the forward-looking model built on top of them. It asks whether the specific inputs used to reach the agreed price would survive independent scrutiny.

Valuation Input	What Gets Tested
Revenue growth rate	Whether it is supported by a contracted pipeline, historic trend or genuine market evidence
Margin trajectory	Whether projected margin improvement is realistic given cost structure and competitive pressure
Discount rate / WACC	Whether it reflects the target’s actual risk profile, capital structure and jurisdiction
Comparable companies	Whether the peer set is genuinely comparable in size, growth and geography, not cherry-picked
Synergy assumptions	Whether claimed cost or revenue synergies are specific, costed and realistically timed

Valuation due diligence typically produces a sensitivity range rather than a single number. It shows the buyer how the price moves if growth comes in below forecast, or if the discount rate used was too optimistic for the actual risk being taken on. That range is often the strongest tool a buyer has at the negotiating table.

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The Buy-Side Due Diligence Process, Step by Step

Scoping. Agree what the review will cover, the trailing period, the entities in scope and the reporting deadline, aligned to the exclusivity window in the letter of intent
Data room review. Work through management accounts, statutory financials, trial balances, contracts and bank statements, flagging gaps that need management follow-up early rather than late
Management interviews. Test explanations for unusual items, related-party arrangements and one-off adjustments directly with the finance team, not just the numbers on a page
Quality of earnings build. Reconstruct normalised EBITDA with each adjustment separately documented and justified, so it can withstand challenge from the seller’s advisers
Net debt and working capital analysis. Identify every debt-like item and establish a defensible working capital target based on a trailing twelve-month average
Valuation model review. Rebuild or stress-test the valuation, checking each key assumption against market evidence rather than accepting the seller’s projections as given
Reporting. Deliver a report setting out adjusted EBITDA, net debt, a normalised working capital target and valuation sensitivities. It should also list the issues that ought to feed into price, the sale and purchase agreement, or specific warranties and indemnities

Typical Financial and Valuation Due Diligence Timeline

Stage	Typical Timing
Scoping and data room access	Week 1
Data review and management interviews	Weeks 2 to 4
Quality of earnings and net debt build	Weeks 3 to 5
Valuation model review and sensitivity testing	Weeks 4 to 6
Draft and final report, price negotiation	Weeks 6 to 7

Red Flags That Should Change the Price or the Deal

Red Flag	Typical Impact
Revenue concentrated in one or two customers	Lower multiple, or an earn-out tied to retention
Working capital artificially compressed before sale	Higher completion mechanism target, lower net proceeds
Related-party transactions priced off-market	EBITDA normalisation adjustment, price reduction
Unrecorded end-of-service or leave liabilities	Direct deduction from net debt, lower equity price
Growth forecast unsupported by pipeline evidence	Lower valuation, or shift of risk into an earn-out

Financial and Valuation Due Diligence Across the UAE, UK, Europe, Saudi Arabia and Australia

United Arab Emirates

UAE due diligence has to reconcile management accounts, which are often prepared informally, with statutory financials filed for corporate tax and, in free zones, Qualifying Free Zone Person status. End-of-service gratuity is consistently under-provided in SME accounts and needs a specific line item in the net debt build. Since UAE corporate tax and transfer pricing documentation requirements have matured, related-party pricing gets closer scrutiny than it did even two years ago.

United Kingdom

UK deals typically run financial due diligence against FRS 102 or IFRS statutory accounts. A locked-box or completion accounts mechanism is agreed early, since that choice changes what the diligence team needs to prove before signing rather than at completion. Pension scheme liabilities are a recurring diligence focus, particularly any legacy defined-benefit exposure. That has no direct equivalent in the UAE.

Europe

Across the EU, statutory accounting frameworks vary by member state, even where IFRS applies to larger groups. So the diligence team needs to confirm which GAAP the target actually reports under before building the QoE. VAT groupings, works council consultation obligations in some jurisdictions, and social security liabilities all carry due diligence weight. That weight is specific to the country of incorporation.

Saudi Arabia

Saudi due diligence increasingly involves Zakat and tax authority correspondence as a specific workstream. Historic Zakat assessments can create liabilities that transfer with the entity in a share deal. Valuation work supporting the price should be prepared to a standard Taqeem-accredited valuers expect to see, and increasingly acquirers expect it too.

Australia

Australian financial due diligence gives particular weight to superannuation guarantee compliance, since underpayment is a common and costly finding. It also gives weight to the tax treatment of the acquisition structure. That reflects the interaction between the target’s existing tax attributes and the Australian Taxation Office’s scrutiny of intercompany pricing in cross-border groups.

Case Study: A Dubai Trading Group Acquisition

A UK-based group agreed heads of terms to acquire a Dubai trading company for AED 55 million. The price was based on a 5.5x multiple applied to a seller-reported EBITDA of AED 10 million. Financial due diligence rebuilt the quality of earnings and found AED 1.6 million of adjustments. Those were above-market rent paid to a related party, a one-off insurance settlement booked as operating income, and inventory that had not been written down despite clear evidence of obsolescence. Normalised EBITDA came down to AED 8.4 million.

The working capital review then found the seller had delayed AED 2.1 million of supplier payments in the three months before the letter of intent was signed. That was well outside the target’s normal payment pattern over the prior two years. There was also an unrecorded end-of-service gratuity liability of AED 0.9 million. The buyer went back to the table with a revised offer of AED 41.6 million, a reduction of roughly 24% from the original headline price. They also required a working capital completion mechanism benchmarked to the trailing twelve-month average, rather than the compressed balance the seller had presented. The deal completed at the revised price six weeks later.

This case study is an illustrative composite constructed to demonstrate how due diligence findings change an acquisition price. No real client or company is described.

Common Mistakes Buyers Make in Financial and Valuation Due Diligence

Accepting seller-prepared EBITDA without independent adjustment. Management-prepared figures are a starting point, not a conclusion, and are rarely presented in the buyer’s favour
Benchmarking working capital to a single balance sheet date. A snapshot the seller has had months to optimise tells the buyer almost nothing about normal operating levels
Treating valuation due diligence as optional once financial due diligence is done. A clean set of historic accounts says nothing about whether the growth assumptions behind the price are realistic
Compressing the timeline to protect exclusivity. Rushed diligence under deal pressure is precisely when debt-like items and related-party adjustments get missed
Not linking findings back to the sale and purchase agreement. Issues identified in diligence should translate into a price adjustment, a specific warranty, an indemnity, or an earn-out condition, not just a paragraph in a report nobody actions

Financial and Valuation Due Diligence Checklist

Trailing three-year statutory financials and management accounts obtained and reconciled
Quality of earnings build completed with every adjustment documented
Net debt schedule includes all debt-like items, not just bank borrowings
Working capital target benchmarked to a trailing twelve-month average
Related-party transactions identified and re-priced to market where relevant
Cash conversion and receivables ageing reviewed against reported profit
Valuation model assumptions independently tested against market evidence
Comparable company or transaction set checked for genuine comparability
Sensitivity range produced for the final agreed price
Findings mapped to price adjustment, warranties, indemnities or earn-out terms

Conclusion

The price in a letter of intent is a starting position, not a commitment either side should treat as final. Financial and valuation due diligence is what separates a price built on management’s story from one built on evidence a buyer, its lenders and its board can actually stand behind. Done properly, it either confirms the deal is fairly priced, or gives the buyer a specific, documented basis to renegotiate before signature rather than after. If you are preparing to acquire a business anywhere across the UAE, UK, Europe, Saudi Arabia or Australia, speak to our team about scoping an independent financial and valuation due diligence review before you sign.

Frequently Asked Questions

What is the difference between financial due diligence and valuation due diligence?

Financial due diligence tests whether a target’s historic earnings, net debt and working capital are accurately stated and sustainable. Valuation due diligence goes further and tests whether the forward-looking assumptions used to reach the agreed price, growth, margins, discount rate, comparables, are actually defensible.

When should financial due diligence start in an M&A deal?

It should start as soon as a letter of intent or heads of terms is signed and exclusivity begins. That gives the buyer full data room access while there is still time to renegotiate price or walk away, before a binding sale and purchase agreement is signed.

How long does financial and valuation due diligence take?

A mid-market acquisition typically takes six to seven weeks from data room access to a final report. It can compress to three to four weeks for a smaller, cleaner target. It can extend well beyond eight weeks for a group with multiple entities or jurisdictions.

What is a quality of earnings report?

A quality of earnings report rebuilds a target’s reported EBITDA from underlying accounts. It adjusts for one-off items, related-party pricing, and aggressive revenue recognition. The result is a normalised figure the buyer can rely on to set the purchase multiple.

Why does working capital matter so much in due diligence?

Because most sale and purchase agreements adjust the final price based on working capital delivered at completion against an agreed target. A target benchmarked to a single, seller-optimised balance sheet date rather than a trailing average can let the seller extract cash the buyer should have received.

What debt-like items are commonly missed in net debt calculations?

Five items are most frequently omitted from a seller-prepared net debt figure. Accrued end-of-service or gratuity liabilities. Unfunded leave balances. Related-party loans. Deferred consideration from prior acquisitions. And provisions for known disputes or claims.

Can financial due diligence findings change the purchase price?

Yes, and it is one of the main reasons buyers commission it. Findings routinely translate into a lower normalised EBITDA, a higher working capital completion target, or a specific net debt deduction. All of these reduce the price actually paid at completion, compared with the original letter of intent figure.

Does the seller need to cooperate with buy-side due diligence?

Yes, under the exclusivity and access provisions typically agreed in the letter of intent. A seller who has already commissioned vendor due diligence can often speed up the process significantly. Much of the underlying analysis is already documented and available for the buyer’s advisers to test.

Is valuation due diligence necessary if the price was set by an independent valuer?

Yes. An independent valuation prepared before the deal is based on information available at that time, often before full data room access. Valuation due diligence re-tests those assumptions against the fuller picture financial due diligence uncovers, and the two exercises frequently move the final number together.

What happens if serious issues are found during due diligence?

That depends on severity. Findings typically lead to a renegotiated price, a restructured earn-out that shifts risk to the seller, or specific warranties and indemnities in the sale and purchase agreement. In the most serious cases, the buyer walks away from the transaction entirely.

How does financial due diligence differ between an asset deal and a share deal?

In a share deal, the buyer inherits the target’s full balance sheet, including historic liabilities, so net debt and debt-like item analysis is critical. In an asset deal, the buyer typically only assumes specifically identified liabilities, which narrows, but does not eliminate, the financial due diligence scope. See our asset deal vs share deal guide for how the structure itself is chosen.

Who should lead financial and valuation due diligence?

An independent valuation and financial advisory firm with no fee tied to whether the deal completes. It works alongside the buyer’s legal and tax advisers, so the quality of earnings and valuation conclusions are not influenced by the transaction closing.

Acquiring a business and need the numbers tested before you sign?

Assetica carries out independent financial and valuation due diligence for buyers across the UAE, UK, Europe, Saudi Arabia and Australia, built to withstand lender, board and audit scrutiny. Scoping call.

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This article is general information on financial and valuation due diligence, not financial, legal or tax advice. Every acquisition requires its own analysis based on the specific target, structure and jurisdiction involved.

Disclaimer. This article is general information about valuation practice in the UAE and is not a valuation, an opinion of value, or tax, legal or investment advice. Any figures or reference ranges are indicative and are not a quotation for any specific business. Rules, rates and the requirements of individual authorities change, so confirm the current position before relying on anything here. For your own circumstances, book a scoping call.

Speak to Assetica about Financial Due Diligence

Assetica is an independent business valuation firm in Dubai. We do not audit and we do not broker deals, so the number carries no conflict. Read more about financial due diligence, or book a scoping call. Standard reports are issued in five to seven business days.