What it means
The method has three moving parts: a forecast of earnings, a discount rate, and a terminal value covering the years after the explicit forecast ends. Change any one of them materially and the answer changes materially, which is why valuers document their assumptions carefully.
Earnings here rarely means the accounting profit on the tax return. Valuers normalise the figures first, adding back an owner's above-market salary, removing one-off legal costs, and stripping out personal expenses run through the business, so the forecast reflects what a new owner would actually earn.
The discount rate carries the risk. A small business dependent on one owner and three customers might be discounted at 20% to 30%, while a stable business with recurring contracts and a management team might justify something in the mid teens, and the difference between those rates can double or halve the valuation.
Terminal value usually contributes more than half the total, which surprises people. It is normally calculated by capitalising the final forecast year's earnings at a rate reflecting long-term risk and growth, then discounting that lump sum back like any other future amount.
The method is closely related to discounted cash flow, and the honest distinction is what you forecast. Discounted future earnings works from accounting profit, which is easier for small business owners to grasp, while discounted cash flow works from cash and handles working capital and capital spending more precisely.
In practice
Real-world examples.
Example
Two founders of a recruitment agency want to buy out a third. A valuer forecasts five years of normalised earnings, discounts at 22% to reflect heavy client concentration, and arrives at a figure well below the departing partner's expectation, which reframes the negotiation around earn-out terms instead of a lump sum.
Example
A family manufacturing business is valued for succession planning. Adding back the founder's $220,000 salary and replacing it with a $140,000 market rate for a hired manager raises normalised earnings by $80,000 a year and lifts the valuation substantially.
Example
A veterinary group acquiring independent clinics uses discounted future earnings to price each target. Clinics with long-serving staff and repeat clients get a 14% discount rate, while those dependent on a single retiring vet get 25%, producing very different multiples for similar profits.
Formula
Calculation
Value = Sum of [Earnings in year t / (1 + discount rate) to the power t] + Terminal value discounted to today. A specialist engineering firm forecasts normalised earnings of $400,000, $440,000, $480,000, $520,000 and $560,000 over five years, and a valuer applies a 12% discount rate with a terminal value capitalising year five earnings at 10%. Discounting each year gives $357,143, $350,765, $341,655, $330,469 and $317,759, which sum to $1,697,791. Terminal value = $560,000 / 0.10 = $5,600,000, and discounted over five years at 12% that becomes $5,600,000 / 1.762342 = $3,177,590. Total value = $1,697,791 + $3,177,590 = $4,875,381, or roughly $4.9 million, of which about 65% comes from the terminal value alone.Case study
Seen in the real world.
Thornfield Instruments is a fictional engineering business created to illustrate the method. Its owner wanted to retire and believed the company was worth $6,000,000, based on a rule of thumb she had heard at an industry event about six times profit. An independent valuer ran the discounted future earnings calculation set out above and reached about $4,875,000.
The gap came from two places. First, normalised earnings were lower than reported profit once a below-market rent paid to the owner's own property company was corrected. Second, the 12% discount rate reflected a genuine risk the owner had discounted in her own mind: 40% of revenue came from a single aerospace customer on a rolling annual contract.
Thornfield's owner postponed the sale for eighteen months, deliberately winning two new mid-sized customers and hiring a general manager to reduce dependence on herself. Those changes lowered the risk profile enough that a later valuation supported a materially higher figure, which is the illustrative point: the discount rate is not fixed by fate, and reducing risk is itself a way of building value.
Watch out
Common mistakes.
- Forecasting off reported profit rather than normalised earnings, so an owner's salary, rent arrangements and personal costs distort the whole valuation.
- Producing a hockey-stick forecast in which earnings suddenly accelerate, which valuers and buyers discount heavily or ignore altogether.
- Treating the discount rate as a technical detail, when it usually has more effect on the answer than the earnings forecast does.
Questions
People also ask.
How many years should the forecast cover?
Three to five years is normal, long enough to capture known changes but short enough that the forecast remains credible.
Why does terminal value dominate the result?
Because it stands in for every year after the forecast horizon, and a business is assumed to continue trading indefinitely rather than stopping in year five.
Is this the same as a multiple of earnings?
Not quite, though the two are related, since capitalising a single year's earnings at a fixed rate is effectively a simplified version of this method.
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