What it means
The underlying logic is that an asset is worth the cash it will hand you, adjusted for the fact that a dollar arriving in five years is worth less than a dollar today. Discounting applies that adjustment, so a forecast of future cash becomes a single present value figure you can compare with an asking price.
Most valuations forecast free cash flow explicitly for three to five years and then apply a terminal value covering everything beyond the forecast horizon. Free cash flow here means operating cash flow after the capital expenditure needed to keep the business running, since that is what is genuinely available to investors.
The discount rate does an enormous amount of work and is where most disagreements live. A stable utility might be valued at 7% while an early stage technology business is discounted at 25%, and that difference alone can change the answer by several multiples.
The terminal value often accounts for more than half the total, which makes the long-run growth assumption critical. A growth rate above the long-term growth of the wider economy implies the business eventually becomes larger than the economy, so most practitioners cap it at around 2% to 3%.
Because small changes in inputs move the answer so much, the professional habit is to present a range rather than a single number. Running the model at several discount rates and growth rates shows how sensitive the value is, which is far more useful to a buyer than a precise-looking figure.
In practice
Real-world examples.
Example
A private buyer valuing a $3,000,000 revenue accountancy practice discounts forecast cash flows at 15% to reflect the risk that clients leave when the founder retires. The resulting value sits well below the sector's headline revenue multiple, and the gap becomes the basis for an earn-out.
Example
An infrastructure fund values a toll road using a twenty five year forecast because the concession has a fixed end date. There is no terminal value at all, since the asset simply hands back to the government at the end.
Example
A manufacturer deciding between two capital projects discounts each project's cash flows at the company's 9% cost of capital. The smaller project wins despite lower total cash, because its cash arrives three years sooner and therefore loses less to discounting.
Think of it
“Cash flow valuation figures out what something is worth based on future cash it will generate.
Formula
Calculation
Value = next year free cash flow / (discount rate - long-term growth rate)
A distribution business is expected to generate free cash flow of $480,000 next year. The buyer uses a discount rate of 10% and a long-term growth rate of 2%, so the value of the operations is $480,000 / (0.10 - 0.02) = $480,000 / 0.08 = $6,000,000.
That figure values the whole enterprise, so the buyer deducts net debt of $1,500,000 to reach an equity value of $6,000,000 - $1,500,000 = $4,500,000, which is the amount payable to the current owners.
Now test the sensitivity. If the buyer judges the business riskier and lifts the discount rate to 12%, the value becomes $480,000 / (0.12 - 0.02) = $480,000 / 0.10 = $4,800,000, and equity value falls to $4,800,000 - $1,500,000 = $3,300,000. A two percentage point change in a single judgement has removed $1,200,000 from the price, which is why the discount rate is negotiated as hard as the forecast itself.Case study
Seen in the real world.
This illustrative case concerns a fictional company. Thornbury Ceramics, an invented tile maker, was offered $9,000,000 by a trade buyer, a figure the owners considered generous because it represented six times last year's operating profit. Their adviser built a cash flow valuation instead of relying on the multiple.
The model showed free cash flow of roughly $700,000 a year once the kiln replacement due in year three was included, an item the profit multiple had ignored entirely. At a 10% discount rate and 2% long-term growth, the enterprise value came to $8,750,000, and after deducting $900,000 of net debt the equity was worth about $7,850,000.
Thornbury's fictional owners accepted the $9,000,000 offer with more confidence than before, because they now knew it exceeded the value of the cash the business would realistically produce. The illustrative point is that a valuation method is most useful when it tells you an offer is good, not only when it tells you an offer is poor.
Watch out
Common mistakes.
- Forecasting profit rather than cash flow, which ignores the capital expenditure and working capital that a growing business must fund before anything reaches investors.
- Using a long-term growth rate of 5% or more in the terminal value, which quietly assumes the business outgrows the whole economy for ever.
- Presenting one precise number as the value, when honest practice is to give a range built from several discount rate and growth assumptions.
Questions
People also ask.
Why does the discount rate matter so much?
Because it compounds, so a small change applied across many future years has a very large effect on the present value of distant cash flows.
Should the valuation use free cash flow to the firm or to equity?
Either works if applied consistently; cash flow to the firm is discounted at the weighted average cost of capital and then reduced by net debt, while cash flow to equity is discounted at the cost of equity directly.
Can this method value a loss making business?
Yes, provided the forecast eventually turns cash positive, though the answer becomes highly sensitive to when that happens and how confident you are that it will.
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