Discounted Cash Flow: Formula, Uses & Benefits Explained
- Share.Market
- 6 min read
- 04 May 2026
Highlights
- Understand discounted cash flow as a valuation method that projects future cash flows and discounts them to present value
- Learn the components of the DCF formula, such as projected cash flows and the discount rate (WACC), with a practical example.
- Understand how DCF valuation works, and its benefits for making smart investment decisions
Introduction
Valuing a stock isn’t guesswork; it’s about seeing what future earnings are worth today. Discounted cash flow (DCF) does exactly that: it estimates a company’s intrinsic value by projecting future cash flows and discounting them to present value. For DIY investors analysing NSE or BSE stocks, DCF offers a data-driven alternative to market sentiment. In this article, we’ll explain the meaning of DCF, explore how DCF analysis works, and discuss the advantages and limitations of this method.
What is Discounted Cash Flow?
DCF is a fundamental analysis technique that calculates what a company is truly worth based on its ability to generate cash in the future. It can be used to estimate the investment required today to achieve a predetermined level of returns.
The discounted cash flow method is based on the concept of the time value of money, which states that money available today is worth more than the same amount received in the future.
DCF can be used to estimate the value of the following assets:
How DCF Valuation Works
The DCF process unfolds in three steps:
- First, project free cash flows: the cash a company generates after covering operating expenses and capital expenditures.
- Second, choose a discount rate, typically WACC, reflecting the company’s cost of equity and debt.
- Third, calculate the present value by discounting each year’s projected cash flow, then sum them up.
Terminal Value in DCF Explained
In most real-world DCF valuations, investors estimate cash flows for a limited forecast period (usually 5–10 years). However, companies continue operating beyond that horizon. To capture the value of cash flows generated after the forecast period, analysts calculate a terminal value.
Terminal value represents the present value of all future cash flows beyond the projection period. It often forms a significant portion of a company’s total DCF valuation.
There are two common approaches:
1. Perpetual Growth Method
Assumes the company continues growing at a stable long-term rate.
Terminal Value = Final Year Cash Flow × (1 + g) ÷ (r − g)
where:
g = long-term growth rate
r = discount rate
2. Exit Multiple Method
Estimates value using valuation multiples such as EV/EBITDA based on comparable companies.
Including terminal value helps make DCF analysis more realistic, especially when valuing long-term assets like stocks and businesses.
DCF Formula and Example
The Discounted Cash Flow formula is as follows:
DCF = [Cash flow in Year 1 / (1 + r)¹] + [Cash flow in Year 2 / (1 + r)²] + [Cash flow in Year 3 / (1 + r)³] + … + [Cash flow in Year n / (1 + r)ⁿ]
Where:
Cash flow
Cash flow includes the expected inflows and outflows of funds over a specific period.
For bonds, cash flows typically include coupon payments and principal repayment at maturity.
In the DCF formula, cash flows are often represented as CF₁ (Year 1), CF₂ (Year 2), and so on.
r
r represents the discount rate.
For businesses, this is usually the Weighted Average Cost of Capital (WACC), which reflects the average return investors expect for financing the company’s assets. WACC considers both debt and equity costs after adjusting for taxes.
In the case of bonds, the discount rate generally refers to the market interest rate or required rate of return.
n
n represents the total number of years over which cash flows are projected.
The DCF method is commonly used for long-term valuation, often extending up to 5–10 years or more, depending on the investment.
Example of Discounted Cash Flow Calculation
Let’s assume Mr Sekar plans to invest ₹1 lakh in a business for 5 years. The company’s WACC is 6%.
The estimated annual cash flows are shown below:
| Year | Cash Flow |
| 1 | ₹20,000 |
| 2 | ₹23,000 |
| 3 | ₹30,000 |
| 4 | ₹37,000 |
| 5 | ₹45,000 |
Using the DCF formula:
DCF = [20,000 / (1 + 0.06)¹] + [23,000 / (1 + 0.06)²] + [30,000 / (1 + 0.06)³] + [37,000 / (1 + 0.06)⁴] + [45,000 / (1 + 0.06)⁵]
The discounted cash flows for each year are:
| Year | Cash Flow | Discounted Cash Flow |
| 1 | ₹20,000 | ₹18,868 |
| 2 | ₹23,000 | ₹20,470 |
| 3 | ₹30,000 | ₹25,188 |
| 4 | ₹37,000 | ₹29,307 |
| 5 | ₹45,000 | ₹33,627 |
The total discounted cash flow valuation is ₹1,27,460.
After subtracting the initial investment of ₹1 lakh, the Net Present Value (NPV) becomes ₹27,460. Since the NPV is positive, Mr Sekar’s investment would be considered financially attractive.
However, if the initial investment were ₹2 lakh, the NPV would be negative ₹72,540, indicating that the investment would not be financially viable.
Benefits of the Discounted Cash Flow (DCF) Method
1. Considers the Time Value of Money
DCF accounts for the fact that money available today is worth more than the same amount received in the future. This makes valuation more realistic and financially accurate.
2. Focuses on Future Cash Flows
The method evaluates an investment based on expected future cash flows rather than past performance, helping investors make forward-looking decisions.
3. Helps Estimate Intrinsic Value
DCF helps determine the intrinsic value of assets such as companies, stocks, real estate, and projects, allowing better comparison with market prices.
4. Useful for Long-Term Planning
DCF is particularly helpful for evaluating long-term projects, capital investments, and business expansion plans.
5. Flexible Across Asset Types
The method can be applied to a wide range of assets, including businesses, bonds, stocks, infrastructure projects, machinery, and real estate.
6. Reduces Dependence on Market Sentiment
Unlike market-based valuation methods, DCF relies on expected cash flows and discount rates rather than short-term price fluctuations.
Using DCF for Smarter Investment Decisions
Understanding the concept of DCF is important if you want to estimate the true value of an investment based on its expected future cash flows. Although the method depends on assumptions and projections, it still offers a practical framework for evaluating long-term investment potential. When used carefully, DCF analysis can support more informed financial and business decisions.
FAQs
DCF estimates a company’s intrinsic value by projecting future cash flows and discounting them to present value using WACC. It helps investors determine if a stock is undervalued or overvalued relative to the market price.
The discount rate, typically WACC, reflects the company’s cost of equity and debt. It represents the minimum return investors expect and accounts for risk and the time value of money in present value calculations.
DCF works best for mature, stable companies with predictable cash flows like large-cap NSE/BSE stocks. It’s less reliable for startups, loss-making firms, or highly cyclical businesses with uncertain future cash flow patterns.
DCF relies heavily on assumptions about future growth, cash flows, and discount rates. Small input changes can significantly alter valuations. It also struggles with companies having negative cash flows or unpredictable earnings in emerging markets.
