Discounted Cash Flow: Formula, Steps, And Valuation

Analyzing your Discounted Cash Flow helps you estimate what your business, a project, or an investment is worth today based on the cash that will be generated in the future. The Discounted Cash Flow calculation turns future cash flows into present value so you can compare expected returns with today’s cost.

This analysis helps you estimate intrinsic value by accounting for the time value of money, risk, and expected future cash flows. You can use it to test a planned expansion, a new product, or the value of your company.

In this article, we discuss how your result depends on realistic forecasts and a suitable discount rate. Small changes in either assumption can affect the value, so it’s critical to review the model carefully.

A dollar in your business today has more value than a dollar you receive years from now. You can invest today’s dollars to reduce debt or fund another project. This lost alternative return is your opportunity cost.

By converting expected future cash flows into present value, Discounted Cash Flow analysis enables you to estimate what an investment is worth today. You can compare that value with your initial investment to judge whether the expected return meets your required return.

The calculation reflects the return you require for tying up money and taking risk. In corporate finance, companies often use their weighted average cost of capital as a starting point. For example, at a 10% discount rate, $100 received in one year has a present value of about $90.91. The same $100 received in five years is worth about $62.09 today.

A higher discount rate reduces the present value. This matters when you evaluate risky projects, uncertain real estate income, or stocks with less predictable future cash flow.

To calculate the Discounted Cash Flow rate, begin by forecasting the cash flow an investment can produce over a set period. For a business project, this may include sales receipts, operating costs, taxes, and spending on equipment and working capital. For real estate, it may include rental income, operating expenses, and expected sale proceeds.

You then discount each year’s future cash flows using this formula:

Present Value = Future Cash Flow ÷ (1 + Discount Rate)^Year

You add the discounted amounts to find the total Discounted Cash Flow value. To then calculate Net Present Value, subtract the initial investment:

Net Present Value = Total Present Value of Future Cash Flows − Initial Investment

Here’s a sampling of the possible implications that the Net Present Value result will have on expected returns:

• Positive result indicates expected returns will exceed the required return.
• Zero result suggests expected returns will match the required return.
• Negative result implies expected returns will fall short of the required return.

Your results depend on realistic assumptions. Small changes in growth, profit margins, discount rates, and the final sale value can materially change the intrinsic valuation.

Discounted Cash Flow analysis combines cash flows during a defined forecast period with a terminal value for cash flows after that period. The core formula discounts each future cash flow by a rate that reflects time and risk.

A higher discount rate reduces present value because future cash is less certain and less valuable than cash you hold today. For a business valuation, add the present terminal value .

You can move from enterprise value to equity value by subtracting debt and other claims. Then add excess cash when appropriate. The Net Present Value goes one step further by subtracting the investment’s upfront cost from its discounted cash flow value.

The explicit forecast period covers the years where you estimate cash flow one year at a time. Many business owners use a five-year forecast horizon, though three to ten years may fit better depending on how predictable the business is.

You can build each year’s cash flow from specific operating drivers:

• Sales growth
• Pricing
• Profit margins
• Taxes
• Capital spending
• Working capital

As you consider these factors, do not assume cash flow growth simply because revenue rises. Higher inventory, hiring, and equipment costs can reduce free cash flow.

Here’s the effect of various forecast items on the Discounted Cash Flow value:

Your forecast period should match the time needed for your business to achieve stable results. For example, a company opening new locations may need a longer forecast period than a mature company with steady sales.

Terminal value estimates the value of all cash flows after your explicit forecast period. It often makes up a large part of a Discounted Cash Flow valuation, so small changes to its assumptions can greatly change your result.

The common perpetuity growth method, also called the Gordon growth model, uses this formula:

P = D1 / (r - g)

FCF_N+1 is the expected free cash flow in the first year after the forecast period, and g is the stable growth rate. You must discount terminal value back to today just like any other future cash flow.

Since a company cannot outgrow its market forever, choose a stable growth rate that fits a mature business by staying at or below the long-term growth rate of the economy. Your discount rate must also remain higher than the growth rate, or else the formula will produce an invalid result.

For your cash flow projections to link with sales growth, profit margins, and reinvestment needs, use a cash-flow measure that matches the value you want to estimate and the discount rate you apply.

One option is free cash flow to the firm, which applies when you want to value the full operating business.

This represents cash available to lenders and equity owners before interest payments and debt financing decisions. You normally discount free cash flow to the firm by using the weighted average cost of capital, then subtracting net debt to reach equity value. Here’s a common free cash flow to the firm formula:

EBIT × (1 − tax rate) + (depreciation and amortization − CapEx − change in working capital)

Your accounting forecast should show how each part changes each year. This makes your financial modeling easier to review and update.

When you want to value owner shares directly, use free cash flow to equity. This reflects cash left for shareholders after interest, debt payments, and new borrowing. You can discount free cash flow to equity by using your required return on equity.

Do not mix these methods. For example, discounting free cash flow to the firm with an equity return can distort your valuation.

As you build forecasts, start from operating drivers, not from a target free cash flow number. One place to start is revenue growth based on customer demand, pricing, sales capacity, market share, and expected contract renewals

Next, forecast your EBIT margin, also called the operating profit margin. EBIT shows operating earnings before interest and taxes, while EBITDA adds back depreciation and amortization. EBITDA can help you track operating performance. However, it does not equal free cash flow.

As you build assumptions, use your income statement and balance sheet trends to test each assumption. If revenue rises but profit margins fall, identify the cause, such as higher labor costs, lower prices, or increased marketing spending.

Growth usually requires reinvestment. When you forecast higher sales, estimate the capital expenditures, inventory, receivables, equipment, and staff needed to support that growth.

Delving into Capital Expenditures (CapEx), they pay for long-term assets such as facilities, vehicles, software, and machinery. Depreciation and amortization reduce accounting earnings, but they do not always match current CapEx. To account for this, add depreciation and amortization back to cash flow, then subtract the full expected CapEx.

Keep in mind that working capital also affects free cash flow. A growing business may need more cash tied up in inventory and unpaid customer invoices. Higher accounts payable can offset some of that cash need, but you should not assume this will continue without support from supplier terms.

As you go through this exercise, review the balance sheet alongside the income statement. A business can report strong EBIT and still produce weak free cash flow if it needs heavy CapEx or increasing working capital.

A discounted cash flow valuation often produces enterprise value, which measures your operating business. You then adjust for financing claims and non-operating assets to find the equity value available to common shareholders.

When using the Discounted Cash Flow method, you calculate enterprise value by discounting the projected unlevered free cash flow to present value. Unlevered cash flow reflects cash generated by operations before interest payments and debt repayment.

You typically use the weighted average cost of capital as the discount rate. Add the present value of your forecast-period cash flows to the present value of the terminal value. Here’s a rundown of what the Discounted Cash Flow components represent:

Enterprise value lets you compare businesses with different debt levels. It does not yet show what common shareholders would receive because lenders and other claimholders may have rights to part of the business value.

You can move from enterprise value to equity value by subtracting claims that rank ahead of common shareholders and adding assets not included in operating value. Here’s the basic calculation:

Equity Value = Enterprise Value − Net Debt − Other Senior Claims + Non-Operating Assets

Net debt equals total interest-bearing debt minus cash and cash equivalents. If your company holds more cash than debt, net debt becomes negative, which increases equity value.

You may also need to subtract preferred shares, unfunded pension obligations, and the value of minority interest, also called noncontrolling interest. Minority interest represents the portion of a consolidated subsidiary that outside owners hold.

Note: Do not subtract ordinary operating liabilities (such as accounts payable) if your discounted cash flow valuation already reflects them in working capital and operating cash flow. This avoids counting the same obligation twice.

To estimate the implied share value, after calculating equity value, divide it by fully diluted shares outstanding:

Implied Share Price = Equity Value ÷ Fully Diluted Shares Outstanding

When options, restricted stock, warrants, or convertible securities could create additional shares, use fully diluted shares rather than basic shares. This gives you a more realistic value per share for owners.

From there, if your business has publicly traded shares, you can compare the implied share price with the current market price. You can also compare it with recent transaction values and other valuation methods.

A key concept here is to not confuse implied share value with earnings per share, which measures profit for a period. Your Discounted Cash Flow valuation estimates the present value of future cash flows available to shareholders.