Residual Income Calculator
Measure economic profit after charging net income for the opportunity cost of shareholders' equity.
Company inputs
Required. Enter shareholders' equity in U.S. dollars.
Required. Annual required return, from 0% to 100%.
Required. Accounting net income for the same period.
Live results
Net income is below the equity charge, indicating negative economic profit.
Calculation breakdown
| Step | Base amount | Rate | Result |
|---|---|---|---|
| 1. Equity charge | $800,000,000.00 | 12.30% | $98,400,000.00 |
| 2. Residual income | $80,520,000.00 | Less equity charge | – $17,880,000.00 |
All amounts use the same reporting period. The calculator does not forecast future residual income or estimate an intrinsic share value.
How to use the residual income calculator
What this calculator does
This calculator estimates a company's residual income, also called economic profit in this context. It starts with accounting net income, calculates an equity charge for the opportunity cost of shareholders' capital, and subtracts that charge from net income. The result answers a focused question: after compensating equity investors at their required rate of return, did the company create or destroy economic value during the period? It is an analytical estimate, not a complete business valuation, investment recommendation, forecast, or substitute for reviewing the company's financial statements and risk profile.
When to use it
Use the calculator to compare accounting profitability with economic profitability, test how a different required return changes the conclusion, review whether a business unit covers its equity capital charge, or create a consistent checkpoint before building a multi-period residual income valuation. For public-company analysis, the SEC's guide to reading Form 10-K and Form 10-Q reports explains where investors can find operating and financial information.
How to calculate
The calculator opens with a complete demonstration based on $800,000,000 of equity capital, a 12.3% cost of equity, and $80,520,000 of net income. Its example Excel workbook is available immediately.
- Replace Equity capital with the shareholders' equity amount for the period you are studying.
- Enter the annual Cost of equity as a percentage, such as 12.3 rather than 0.123.
- Enter Net income from the same reporting period and accounting scope.
- Read Residual income first, then use Equity charge, Implied return on equity, and Return spread to understand why the result is positive or negative.
- Select Download Excel to export the current validated inputs and outputs. Reset clears the demonstration data and may disable the download until all required values are entered again.
Input guide
Equity capital is required and accepts a nonnegative U.S.-dollar amount using digits, an optional leading dollar sign, commas in standard three-digit groups, and up to two decimal places. A realistic example is $800,000,000. Higher equity capital increases the equity charge and therefore lowers residual income, all else equal. Do not mix market capitalization with book shareholders' equity unless your analysis explicitly calls for that alternative base.
Cost of equity is required and accepts a percentage from 0% through 100%, with up to four decimal places. A value of 12.3 means 12.3%, not 1,230%. Raising the cost of equity increases the required equity charge and reduces residual income. The rate should match the period of the net income figure; an annual cost of equity belongs with annual net income. CFA Institute's overview of residual income valuation describes residual income as profit after opportunity costs of capital.
Net income is required and accepts positive, zero, or negative U.S.-dollar amounts. A realistic example is $80,520,000. Higher net income increases residual income dollar for dollar. A common mistake is combining consolidated net income with equity capital for only one segment, or mixing quarterly income with year-end equity and an annual required return without adjustment.
Output guide
Residual income is the primary dollar result. Positive residual income means net income exceeded the equity charge; zero means the company exactly earned the required return; negative residual income means accounting profit did not cover the opportunity cost of equity. Equity charge is equity capital multiplied by the cost of equity. Implied return on equity is net income divided by equity capital; it is shown as a percentage and is undefined when equity capital is zero. Return spread equals implied return on equity minus cost of equity. A positive spread aligns with positive residual income when equity capital is positive. The summary pills repeat the current economic-profit status, equity charge, and return spread. The breakdown table shows the two calculation steps, their base amounts, the applicable rate or deduction, and the resulting amount.
Worked example
With equity capital of $800,000,000 and a cost of equity of 12.3%, the equity charge is $98,400,000. Subtracting that from net income of $80,520,000 gives residual income of – $17,880,000. Implied return on equity is 10.065%, displayed as 10.07%, so the return spread is approximately – 2.24 percentage points. The negative result indicates that the company reported accounting profit but did not earn the assumed required return on shareholders' equity.
Interpretation and limitations
Residual income is sensitive to the selected cost of equity. That rate is an estimate of required return, so analysts often test a range rather than rely on one point estimate. The metric also depends on accounting values that may contain unusual items, write-downs, acquisitions, or changes in accounting policy. Use consistent periods and investigate large one-time effects. The SEC's EDGAR research guide explains how to access company filings, while NYU Stern's equity valuation materials provide broader context on required returns and valuation methods.