Valuing a business is one of the most important—and frequently misunderstood—parts of an acquisition.

Discussions often begin with EBITDA multiples. What multiple is normal for the sector? What have similar businesses sold for? Is four times EBITDA reasonable, or should it be six? How much should be added for growth prospects or a strong management team?

These questions can be useful, but they do not provide a reliable valuation on their own. Before long, the discussion becomes dominated by opinions about the “right” multiple.

The underlying problem is simple: multiplying historic EBITDA by an estimated market multiple means multiplying one imperfect measure by another.

A business is not valuable merely because another company in the same industry sold for a particular multiple. Its value depends on the cash it is expected to generate, the risks attached to that cash and the investment required to sustain it.

Why EBITDA Multiples Can Be Misleading

EBITDA offers a convenient indication of operating performance before interest, tax, depreciation and amortisation. However, EBITDA is not the same as cash available to an owner or lender.

Two companies reporting identical EBITDA can have dramatically different values. One may have reliable recurring revenue, low customer concentration and modest investment requirements. The other may depend on a small number of customers, ageing equipment and substantial working capital.

Applying the same multiple to both businesses would ignore important differences, including:

• The reliability of earnings.
• Customer and supplier concentration.
• Management quality and dependence on the seller.
• Competitive position and barriers to entry.
• Working-capital requirements.
• Future capital expenditure.
• Tax obligations and existing liabilities.
• The sustainability of expected growth.

Value Ultimately Comes From Cash Flow

The most defensible starting point for valuation is the future cash the business can generate for its owners.

The core process is straightforward:

1. Estimate the sustainable cash flows the business is likely to produce.
2. Forecast those cash flows over a reasonable period—often five years.
3. Estimate the value of cash flows arising after the forecast period.
4. Discount those amounts to their value today, using a return that reflects the associated risk.

This is the principle behind a discounted cash flow valuation. In simple terms, it asks: How much would an investor need to commit today, at an acceptable rate of return, to reproduce the income expected from this business?

Start With Maintainable Earnings

A reliable valuation does not simply copy EBITDA from the latest accounts. It begins by establishing the level of earnings likely to continue after the acquisition.

Reported profit may include exceptional costs, non-recurring income, personal expenditure or unusually high or low director remuneration. Some expenses may genuinely disappear after completion, while others will need to be replaced.

Convert Profit Into Cash

Once maintainable earnings have been established, they must be converted into cash flow. This requires adjustments for corporation tax, movements in debtors, creditors and stock, replacement capital expenditure, exceptional costs and other contractual commitments.

Working capital is particularly important. A growing business may report rising profits while consuming cash because it must carry more stock or wait longer for customers to pay.

Forecast Realistic Performance

The forecast should reflect how the business is genuinely expected to perform—not simply extend the seller’s most optimistic assumptions.

Revenue growth should be supported by evidence such as contracted work, historic customer behaviour, market demand, available capacity and a credible sales plan. Costs should reflect the resources required to deliver that growth.

Reflect Risk Through the Required Return

Future cash is worth less than cash available today, and uncertain cash is worth less than predictable cash. The discount rate should therefore reflect both the time value of money and the risks associated with the business.

A company with recurring contractual income, diverse customers, strong management and limited capital requirements may justify a lower required return. A company dependent on its owner, one major customer or an uncertain market would normally require a higher return.

Test the Downside

No forecast will be completely accurate. A credible valuation must examine what happens when performance is weaker than expected.

If a modest deterioration causes the investment case to fail, the proposed price may leave the buyer with insufficient protection. Downside testing is especially important when acquisition debt is involved. A price may appear supportable in the central forecast but become unaffordable once repayments, working-capital pressure and realistic trading risks are included.

Multiples Still Have a Supporting Role

However, a multiple should validate a cash-flow-based valuation—not replace it. If the two approaches produce significantly different results, the buyer should investigate why. The difference may reveal unusual growth expectations, hidden investment requirements, customer concentration or differences in transaction structure.

Price and Value Are Not Always the Same

A valuation is an analytical assessment. The final price is the amount the buyer and seller agree after negotiation.

Conclusion

Businesses create value by generating cash—not by achieving a fashionable EBITDA multiple.

A reliable valuation therefore begins with maintainable earnings, converts those earnings into realistic cash flow, reflects the necessary investment and risk, and discounts the expected returns to their present value.

Multiples may help test the result, but they cannot replace detailed analysis. Before agreeing a price, a buyer should know how much cash the business can realistically generate, what could cause performance to fall short and whether the expected return justifies the investment.

That is the foundation of a disciplined acquisition—and the most reliable way to decide what a business is truly worth.