How do you check whether your terminal value is reasonable?

Cross-check the two methods against each other. If you built terminal value off an exit multiple, back out the perpetuity growth rate that multiple implies; if you used Gordon Growth, back out the implied exit multiple. When the exit multiple implies 5% perpetual growth or the growth rate implies a 30x multiple, one of your assumptions is wrong. Neither method is a check on itself.

What perpetuity growth rate should you use?

Something at or below long-run nominal GDP growth for the economy the company operates in, so typically 2% to 3% in developed markets. The logic is a constraint, not a preference: any company growing faster than the economy forever eventually becomes the entire economy. A rate above nominal GDP is the single most common way a DCF gets quietly broken.

Is it a problem if terminal value is 70% of enterprise value?

No, that is normal and expected. A five to ten year explicit forecast captures only a fraction of a going concern's life, so 60% to 80% of value sitting in terminal value is standard. It matters because it tells you where the sensitivity lives: your answer is driven more by the terminal assumptions than by the forecast you spent hours building.

Why does Gordon Growth use the terminal year cash flow grown one more period?

The formula prices a perpetuity that starts the year after your final forecast year. The numerator has to be the first cash flow of that perpetuity, which is the terminal year FCF grown by one year of growth. Using the un-grown terminal year FCF understates terminal value by roughly the growth rate.

DCF

Terminal value (Advanced)

By Michael Song · Wharton MBA · ex-Greenhill · investment banking interview coach

5 min read · updated July 30, 2026

The basic version of this topic gives you two formulas. The level 4 and 5 questions never ask you to recite them. They ask you to make the two methods agree, and to defend the assumption you chose when they don't.

The cross-check is the real test

You have two ways to compute terminal value, and the interviewer's actual question is what happens when they disagree.

$\text{TV}_{\text{Gordon}} = \frac{\text{FCF}_n \times (1 + g)}{\text{WACC} - g} \qquad\qquad \text{TV}_{\text{Exit}} = \text{EBITDA}_n \times \text{Multiple}$

The move that separates a strong candidate from a memorizer: each method is a check on the other. If you built terminal value off an exit multiple, back out the growth rate it implies. Rearranged:

$g_{\text{implied}} = \frac{(\text{WACC} \times \text{TV}) - \text{FCF}_n}{\text{TV} + \text{FCF}_n} \qquad\text{or, more usefully}\qquad \text{Multiple}_{\text{implied}} = \frac{\text{TV}_{\text{Gordon}}}{\text{EBITDA}_n}$

Note the rearrangement uses $\text{FCF}_n$ , the terminal year cash flow, not $\text{FCF}_{n+1}$ . The forward formula grows it by $(1+g)$ , so $\text{FCF}_{n+1}$ already contains the $g$ you are solving for — putting it here would be circular.

Run it on real numbers. Terminal year EBITDA of $500, a 10.0x exit multiple, so terminal value is $5,000. Terminal year unlevered FCF of $300, WACC of 9%. What growth rate does that $5,000 imply?

Solve $5{,}000 = \frac{300 \times (1+g)}{0.09 - g}$ . That gives $450 - 5{,}000g = 300 + 300g$ , so $g = 150 / 5{,}300 \approx$ 2.8%.

That is a defensible answer, and saying so out loud is the point. Now change the exit multiple to 14.0x. Terminal value becomes $7,000, and the implied growth rate solves to $g = (630 - 300) / 7{,}300 \approx$ 4.5% — above long-run nominal GDP, which means the multiple is pricing in permanent outperformance of the entire economy. The multiple didn't look absurd. The growth rate it implied did.

Key insight

This is why bankers quote both. The exit multiple feels grounded because it comes from comps, but comps are a snapshot of today's market. Gordon Growth feels theoretical but enforces a real economic constraint. Using the multiple without checking the implied growth is how a DCF ends up defending a company that grows faster than its economy forever.

Normalizing the terminal year

A perpetuity formula assumes the cash flow you feed it repeats forever with steady growth. So the terminal year has to be a normal year, and in most models it isn't. Three adjustments get tested:

Capex must converge toward D&A. A company growing at 2.5% forever cannot be spending 8% of revenue on capex while depreciating 4%. In steady state, capex sits at or slightly above D&A. If your terminal year still carries a growth-phase capex number, terminal value is understated.
Working capital investment shrinks with growth. The change in working capital scales with revenue growth, not revenue. At 2.5% growth, the drag is small. Carrying a 10%-growth working capital build into perpetuity is a real error.
Margins should be sustainable, not peak. If the forecast ramps margins every year, the terminal year inherits the peak. Interviewers will ask whether that margin is competitively defensible forever.

Common mistake

The formula error people make under pressure: forgetting the $(1 + g)$ in the numerator. Gordon Growth prices a perpetuity that begins the year after your final forecast year, so the numerator must be $\text{FCF}_{n+1}$ , not $\text{FCF}_n$ . Drop it and you understate terminal value by roughly the growth rate. The subtler error is discounting terminal value by the wrong number of periods. Terminal value sits at the end of year n, so it gets discounted n years, the same as year n's cash flow, not $n+1$ .

Why a 70% terminal value is fine

Candidates get spooked when terminal value dominates. It shouldn't be alarming, and knowing why is a level 4 answer.

A DCF values a going concern with an indefinite life. Your explicit forecast covers five or ten years of that. Everything after is compressed into one number, so 60% to 80% of enterprise value sitting in terminal value is normal, and it runs higher for low-growth stable businesses with long lives.

What it actually tells you is where the sensitivity lives. If 75% of your value is terminal, then your answer is driven far more by two terminal assumptions than by the forecast you spent hours on. A 50 basis point move in the growth rate will swing your answer more than a full year of revenue misses. That is the honest reason a DCF output is shown as a sensitivity table rather than a single number.

Interview tip

When asked to sanity-check a DCF, work outside in and say it in this order: is the implied perpetuity growth at or below nominal GDP, is capex converging to D&A in the terminal year, and does the implied exit multiple sit inside the comps range? Three checks, spoken as a sequence, reads as someone who has actually had a model torn apart by an associate. Getting the arithmetic right is table stakes; knowing which assumption to attack first is the differentiator.

Glossary

New to the lingo? Every term used above, in plain English.

Terminal Value: In a DCF, the estimated value of all the cash flows that come after the years you forecast explicitly. It often makes up most of the total value.
Exit multiple: A valuation shortcut for terminal value that applies a market multiple, such as EV/EBITDA, to the final forecast year to estimate what the business would sell for at the end.
Discount rate: The required rate of return used to translate future cash flows into today’s dollars. A higher discount rate makes future cash worth less now.
Unlevered free cash flow: The cash a business generates before any debt payments, so it belongs to all investors, both lenders and shareholders. This is the cash flow used in a DCF.
Present value (PV): What a future cash flow is worth today after discounting it back at a required rate of return. PV = future value divided by (1 + r) raised to the number of periods.
Mid-year convention: A DCF tweak that assumes cash flows arrive in the middle of each year rather than at year-end, since companies earn cash throughout the year. It slightly raises the valuation.
Intrinsic value: What a company or its shares are truly worth based on the underlying business, as opposed to the price the market is currently quoting. A buyback only rewards remaining holders when shares are bought below it.
Working capital: The short-term money tied up in day-to-day operations, roughly current assets like receivables and inventory minus current liabilities like payables.

Frequently asked

How do you check whether your terminal value is reasonable?: Cross-check the two methods against each other. If you built terminal value off an exit multiple, back out the perpetuity growth rate that multiple implies; if you used Gordon Growth, back out the implied exit multiple. When the exit multiple implies 5% perpetual growth or the growth rate implies a 30x multiple, one of your assumptions is wrong. Neither method is a check on itself.
What perpetuity growth rate should you use?: Something at or below long-run nominal GDP growth for the economy the company operates in, so typically 2% to 3% in developed markets. The logic is a constraint, not a preference: any company growing faster than the economy forever eventually becomes the entire economy. A rate above nominal GDP is the single most common way a DCF gets quietly broken.
Is it a problem if terminal value is 70% of enterprise value?: No, that is normal and expected. A five to ten year explicit forecast captures only a fraction of a going concern's life, so 60% to 80% of value sitting in terminal value is standard. It matters because it tells you where the sensitivity lives: your answer is driven more by the terminal assumptions than by the forecast you spent hours building.
Why does Gordon Growth use the terminal year cash flow grown one more period?: The formula prices a perpetuity that starts the year after your final forecast year. The numerator has to be the first cash flow of that perpetuity, which is the terminal year FCF grown by one year of growth. Using the un-grown terminal year FCF understates terminal value by roughly the growth rate.

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