The two-stage growth model values a small business by splitting its future into an initial high-growth phase (5–7 years) and a subsequent perpetual growth phase. Cash flows are discounted using a rate from the build-up method, and the terminal value uses the Gordon Growth Model.
The two-stage growth model in DCF valuation separates a small business’s future into two distinct periods: an initial high-growth phase (typically 5–7 years) where cash flows are explicitly forecasted using specific growth assumptions, and a subsequent terminal period representing stable, perpetual growth at a modest long-term rate (typically 2–3% for US small businesses). The present value is calculated by discounting the forecasted cash flows from the high-growth period using a discount rate derived from the build-up method (incorporating the risk-free rate, equity risk premium, size premium, and company-specific risk factors), plus a terminal value calculated using the Gordon Growth Model at the end of the explicit forecast period, which is then discounted back to present value using the same discount rate.
Zolidar’s Aha Planner runs a 16-year forecast and applies the model like this.
Years 1 through 6. Aha Planner infers a growth rate from the three recast years of history you provide. It uses the annual rate that carries the oldest recast year to the most recent one, so an out-of-line middle year cannot tilt your trend. If the change into the middle year is more than 10 times the change out of it, the business moved once and then held still, so Aha Planner reads that as a one-time step and uses the most recent year’s change instead. An out-of-line most recent year does still set the trend, which three years of data cannot correct. The applied rate is capped at 15% a year, because the model is built for stable, mature small businesses. A business whose inferred rate is higher than 15% is forecast at 15%.
If the business is declining. A declining business is not held at its current rate for six years. Aha Planner improves the rate in equal steps across the six years, by up to 10 percentage points and never past flat. A business declining 10% a year or less reaches flat by year six: a 4% decline improves by 4 points, not 10. A steeper decline gets the full 10 points and still ends the forecast declining, by exactly the amount it exceeds 10 points.
Years 7 through 16. Long-run growth is capped at 2.9% a year. That figure is deliberately conservative: full inflation plus a partial share of real economic growth. It is not the US GDP growth rate. The rate comes down only when two readings of your history both show a decline steeper than 10% a year: the growth rate Aha Planner infers from your three recast years, and your most recent year on its own. If either reading is milder than that, you keep the full 2.9%, even when the six-year forecast still ends in decline. When both are steeper, the 2.9% is reduced by however far the milder reading runs past 10 points, and it never falls below zero.