Residual Income Calculator

Two different things share this name

Worth clearing up in the first paragraph, because searching for residual income turns up two unrelated ideas and people land on the wrong one all the time.

One is personal. What is left of your pay after the rent, the loan instalments and the bills, which is the figure a mortgage underwriter looks at to decide whether you can afford another commitment.

The other is corporate. What is left of a company's profit after charging it for the shareholders' capital, which is a measure of whether a business is genuinely creating value.

This calculator does the second one. The three boxes are equity capital, cost of equity and net income, and those only make sense for a company.

If you came looking for the household version, this is not it, and our personal loan calculator and payment calculator are closer to what you want.

The cost your income statement never shows

Now the idea itself, which is one of the more quietly radical things in finance.

Look at any income statement. Somewhere near the bottom there is a line for interest expense. That is the company being charged for the money it borrowed, and nobody finds it controversial. Lenders provided capital, lenders get paid, the cost appears as an expense.

Now look for the equivalent line for shareholders.

It is not there. Shareholders also provided capital, at greater risk than the lenders took, and their capital appears in the accounts as free. CFA Institute puts it plainly: an income statement includes a charge for the cost of debt capital in the form of interest expense, but it does not include a charge for the cost of equity capital, so a company can report positive net income and still not be adding value for its shareholders if it fails to earn more than that capital costs.

Which is the whole point. Accounting profit is measured after paying the bank and before paying the owners. Residual income finishes the job.

Equity charge = Cost of equity × Equity capital

Residual income = Net income - Equity charge

Positive means the business earned more than the owners' capital could have earned elsewhere. Negative means it did not, however healthy the bottom line looked.

It goes by other names in other rooms. Economic profit is the general term. Economic value added is a proprietary version of the same arithmetic applied to all capital rather than just equity. The idea underneath is identical.

The equity charge, then what is left

The calculator shows both steps rather than only the answer, which is deliberate. The charge is the interesting half.

Seeing the charge as a currency figure rather than a percentage tends to land differently. A cost of equity of 12 percent is an abstraction. Four million eight hundred thousand is a bill.

On the inputs: equity capital is the book value of shareholders' equity from the balance sheet, net income is the after tax figure from the income statement, and cost of equity is the required return on that capital, entered as a percentage. That third one is the only estimate on the page and it does most of the work, which is why it gets its own section further down.

Eight million of profit, and whether it was enough

A company with 40,000,000 of shareholders' equity earns 8,000,000 after tax. Shareholders require 12 percent.

The equity charge is 12 percent of 40,000,000, which is 4,800,000.

Residual income is 8,000,000 minus 4,800,000, which is 3,200,000.

So the business cleared its cost of equity with 3.2 million to spare. It did not merely make a profit, it made a profit larger than the owners could have earned by taking the same money elsewhere at comparable risk. That surplus is what value creation actually means, stated in currency.

Now change one number. Hold everything else and raise the cost of equity to 22 percent, which is not unreasonable for a business in a volatile market or a shaky economy.

The charge becomes 8,800,000. Residual income becomes minus 800,000.

Same company. Same eight million of profit. Same balance sheet. And on this reading it destroyed value during the year, because the shareholders carried risk that entitled them to more than they got.

Nothing about the accounts changed. Only the question being asked.

The exact point where it flips

Residual income does not turn negative at some vague point. It turns negative at one precise place, and once you see it the whole measure gets simpler.

Residual income is zero when net income exactly equals the equity charge. Which means net income divided by equity equals the cost of equity. And net income divided by equity is return on equity.

Residual income is positive exactly when ROE exceeds the cost of equity.

Watch it happen on the same company:

Dead on zero at 20 percent, which is the ROE. Not approximately. Exactly.

There is a second way to write the whole thing that falls out of this:

Residual income = (ROE - Cost of equity) × Equity capital

Check it. ROE of 20 percent less a cost of equity of 12 gives a spread of 8 percentage points. Eight percent of 40,000,000 is 3,200,000. The same answer the calculator gave, from a completely different direction.

That formulation is worth carrying because it separates the two things that matter. The spread tells you how good the business is. The equity capital tells you how much of that goodness there is. A tiny company with a huge spread and a giant company with a thin one can create identical value.

You can check any answer from this page against our return on equity calculator. If its ROE comes out above the cost of equity you entered here, this calculator must return a positive residual income. If the two disagree, something has been typed wrong.

Where the cost of equity comes from

Everything above rests on this one figure, and unlike the other two it is not sitting on any statement waiting to be copied. It is an estimate, and different estimates give different verdicts on the same company.

Three ways people arrive at it.

The capital asset pricing model. The standard approach. Start with a risk free rate, usually a government bond yield, then add the equity risk premium multiplied by the company's beta, which measures how much its shares move relative to the market. Widely used, and every input is itself an estimate, so treat the output as a range rather than a figure.

The dividend growth approach. For a company with a stable dividend, the expected dividend divided by the share price, plus the expected growth rate. Simpler, and useless for anything that does not pay a predictable dividend.

What the owners actually want. For a private company this is often the most honest answer. If the shareholders would sell up and put the money somewhere yielding 15 percent, then 15 percent is the cost of equity, whatever a model says.

Two practical notes. Cost of equity is always higher than cost of debt for the same company, because shareholders are paid last and can be wiped out entirely, so they require more for the privilege. And if you want the blended cost of all capital rather than equity alone, our WACC calculator combines debt and equity by their weights.

Because the estimate is soft, the sensible habit is to run this calculator three times. Once at your best estimate, once a few points below, once a few points above. If the sign of the answer stays the same across that range, you have a conclusion. If it flips, you have an assumption doing the deciding, and the honest report is that it is too close to call.

Questions people ask

Is this the personal finance version?

No. This one charges a company for its shareholders' capital. The household version, income left after fixed obligations, is a different measure that happens to share a name.

How is this different from profit?

Profit is calculated after paying lenders but before compensating shareholders. Residual income deducts a charge for the equity capital as well, so it shows what is left once every provider of capital has been accounted for.

A profitable company shows negative residual income. Is that possible?

Yes, and it is the whole reason the measure exists. It means the business earned less than shareholders could have made elsewhere at similar risk. It happens whenever return on equity falls below the cost of equity.

Is this the same as economic value added?

Closely related. Economic profit is the general term for the idea. EVA is a proprietary version that charges for all capital, debt and equity together, using total assets and a weighted average cost, rather than equity alone.

What cost of equity should I use?

For a listed company, typically the capital asset pricing model figure. For a private one, what the owners would genuinely require elsewhere at the same risk. Run it at several values and see whether the sign of the answer holds.

Should equity capital be book value or market value?

Book value, taken from the balance sheet, is the standard input for this calculation and is what pairs correctly with an accounting net income figure.

Can this value a whole company?

It is the foundation of one. Residual income valuation sets a share's intrinsic value at book value per share plus the present value of all expected future residual income. This calculator gives you one year of that stream rather than the full model.

References

A note on the sources. The central claim on this page, that an income statement charges for debt capital but not for equity capital and that a company can therefore be profitable while failing its shareholders, is CFA Institute's own framing of why residual income exists, and their treatment also confirms the shortcut used above, that residual income can be expressed as book value multiplied by the difference between return on equity and the required return. The definitions of the two accounting inputs come from the Securities and Exchange Commission's guide for investors. Nothing here is investment advice, and the cost of equity is an estimate rather than a reported figure.

1. CFA Institute, Residual Income Valuation, on residual income as net income less a charge for shareholders' opportunity cost, on the absence of an equity capital charge in conventional accounting, and on expressing per-share residual income as book value multiplied by the spread between forecast return on equity and the required return. https://www.cfainstitute.org/insights/professional-learning/refresher-readings/2026/residual-income-valuation
2. U.S. Securities and Exchange Commission, Beginners' Guide to Financial Statements, on shareholders' equity as the amount owners have invested in the company and on where net income is reported. https://www.sec.gov/about/reports-publications/investorpubsbegfinstmtguide
3. U.S. Securities and Exchange Commission, Beginners' guide to financial statements, Investor.gov glossary entry. https://www.investor.gov/introduction-investing/investing-basics/glossary/beginners-guide-financial-statement
4. Brealey, R.A., Myers, S.C., and Allen, F., Principles of Corporate Finance, McGraw-Hill Education, chapters on economic profit, the cost of equity capital and the opportunity cost of capital.