Blog · Territory, capacity and quota planning · Finance and FP&A teams
Cost of equity is the return owners require for providing equity capital. Compare supplied financing assumptions and project cash-flow scenarios, with a worked discounting example and checks on the inputs.
Cost of equity is the return owners require for supplying equity capital to a company. It gives finance a stated benchmark for evaluating cash flows available to those owners; it does not predict the return a project will deliver. The useful planning question is whether a proposal meets the approved requirement under assumptions the team can explain.
An owner commits money that could have been used elsewhere and bears uncertainty about future cash distributions. Cost of equity expresses the return required for that commitment. CFA Institute defines it as the return equity investors require, distinguishing it from the cost of borrowing and the combined cost of capital.
It is a financing assumption, not the company's historical profit divided by equity. That accounting comparison belongs in ROE vs cost of equity. Nor is it an operating allocation: use activity-based costing when the question is how shared expenses belong to products or customers.
Treasury or the finance team proposes the required return, with the CFO or designated investment committee approving its use. A project owner supplies the operating assumptions and explains their uncertainty. Keeping those responsibilities separate makes it harder to lower the rate simply because a proposal otherwise fails its approval test.
The capital asset pricing approach, CAPM, is one method of estimating a required equity return:
Cost of equity = Risk-free rate + Beta × Equity risk premium
Equity risk premium = Expected market return − Risk-free rate
The Corporate Finance Institute's CAPM explanation describes this relationship between the risk-free return, beta, and the market risk premium. Beta represents exposure to market risk; it is not an operating volatility percentage or something to infer from the project's sales growth.
Assume a US company's finance team supplies the following illustrative annual USD inputs. They are planning assumptions, not current market observations or a recommendation for another company.
| Input or calculation step | Supplied value or result |
|---|---|
| Risk-free rate | 4.0% |
| Equity beta | 1.20 |
| Equity risk premium | 5.0% |
| Beta × premium: 1.20 × 5.0% | 6.0% |
| Required equity return: 4.0% + 6.0% | 10.0% |
The cost of equity risk premium applied here is the beta-scaled 6.0 percentage points, while the underlying market equity risk premium is 5.0%. Label those inputs separately. Entering an expected total market return where the formula asks for the excess return would count the risk-free component again.
For a private company, the finance team must also consider whether the estimation method fits the owners. Damodaran's discussion of private-company equity costs explains that conventional market-risk approaches assume diversified investors. An owner's concentrated exposure requires an explicit policy judgment; an uploaded workbook cannot resolve it by itself.
Use a cost of equity with cash flows available to equity holders after the relevant debt financing flows. Cash flows available to all capital providers call for a corresponding combined financing rate. Damodaran's discounted cash-flow teaching notes distinguish these cash-flow bases and the associated discount-rate choice.
For a planning workbook, record scenario, period, currency, cash-flow basis, cash amount, required return, assumption date, and approver. Keep the approval record beside the cash-flow schedule. Check that nominal USD cash flows use a nominal USD rate and that annual cash flows use an annual rate.
The borrowing assumption needs its own support; cost of debt risk premium covers that separate input. A company's borrowing rate alone is not its required equity return.
Consider an illustrative US distribution company assessing an equity-funded improvement. Both scenarios require an immediate outlay of $1,000,000. The following cash flows are after project taxes and operating reinvestment, with no debt flows, and occur at each year-end. The project ends after the final receipt; there is no additional disposal value or terminal cash flow.
| Cash-flow period | Base scenario (USD) | Revised scenario (USD) |
|---|---|---|
| Time 0: immediate outlay | -1,000,000 | -1,000,000 |
| Year 1 | 400,000 | 420,000 |
| Year 2 | 400,000 | 420,000 |
| Year 3 | 400,000 | 420,000 |
| Total future receipts | 1,200,000 | 1,260,000 |
| Undiscounted receipts less outlay | 200,000 | 260,000 |
Positive undiscounted totals do not establish that either scenario meets the required return. Discount each receipt before comparing it with the immediate outlay:
Present value of a receipt in year t = Receipt / (1 + Required return)^t
Net present value = Sum of future receipt present values − Immediate outlay
At the supplied 10.0% rate, the base scenario's receipts have present values of $363,636.36, $330,578.51, and $300,525.92 for years 1 through 3. Calculate with full precision and round final monetary results to cents; individually rounded components can differ from the total by a cent.
| Scenario | Required return | Present value of future receipts (USD) | Immediate outlay (USD) | Net present value (USD) |
|---|---|---|---|---|
| Base | 10.0% | 994,740.80 | 1,000,000.00 | -5,259.20 |
| Revised | 10.0% | 1,044,477.84 | 1,000,000.00 | 44,477.84 |
| Base | 12.0% | 960,732.51 | 1,000,000.00 | -39,267.49 |
| Revised | 12.0% | 1,008,769.13 | 1,000,000.00 | 8,769.13 |
The 12.0% rows are a supplied sensitivity, not a second CAPM estimate. At 10.0%, the base proposal falls short and the revised proposal clears the requirement. Raising the rate reduces both present values even though the operating cash-flow rows remain unchanged.
Rebuild the base result directly: 994,740.80 − 1,000,000.00 = -5,259.20. With a zero discount rate, the calculation must return the undiscounted net amounts in the first table. That catches omitted receipts or a duplicated initial outlay.
In Excel, if the immediate signed outlay is B2, future annual receipts are B3:B5, and the annual rate is F2, use:
=NPV($F$2,B3:B5)+B2
Microsoft's NPV documentation specifies equally spaced, end-of-period cash flows and explains why an immediate outlay is added separately. Covirage is not affiliated with Microsoft.
The investment review should distinguish a change in the required rate from a change in operating receipts. Once approved, project cost management addresses whether spending and remaining estimates still support the proposal.
Bring your project cash-flow workbook and the finance team's stated required returns to Covirage. Covirage maps the columns; its tools compute and check the scenario figures, and the external AI model explains the results with every figure traced to its rows. Create a free Covirage account, which takes about a minute, and bring a sample of your own data after setting up your business.
See Covirage for finance teams for the wider reporting context.
Cost of equity is a required return used in financing and planning decisions, rather than an expense deducted when calculating net income. Owners can require compensation for committing capital even when the company does not distribute cash dividends.
Yes. Private-company owners also require a return, but estimating it needs judgment because there may be no traded share price or directly observable beta. Finance should document the chosen approach, ownership assumptions, and approval rather than treating a public-company estimate as automatically applicable.
A project hurdle rate is an approval threshold. Cost of equity can inform it when the cash flows belong to equity holders and the risk matches. A company may set a different hurdle for capacity limits, project risk, or other approved investment-policy reasons.