Return Ratios: ROE, ROA and ROIC Explained

Introduction

Apple earned $112.0 billion in its 2025 fiscal year. Measured against its shareholders' equity, that was a return of about 171%. Measured against its total assets, it was about 31%. Costco, in its fiscal year to August 2026, earned a return on equity of about 28%, but its return on invested capital (ROIC) was either about 23% or about 44%, depending on whether its $21.3 billion of cash and short-term investments, reported in its 2026 annual report, is counted as capital it needs to run the business. None of these figures is wrong. Each divides profit by a different base, and each answers a different question.

Return ratios are the link between the income statement and the balance sheet: they say how much profit a company generates from the resources it uses. They are central to valuation, because a business that earns high returns on the capital it reinvests is worth more than one that grows by consuming capital, and they are among the easiest ratios to distort.

The three main ratios differ in which providers of capital they measure:

The rule that keeps them consistent is that the numerator must belong to the same providers of capital as the denominator. Net income is what is left for shareholders after lenders have been paid, so it matches equity. Operating profit after tax is what is available to both lenders and shareholders, so it matches debt plus equity. Mixing them, for example dividing net income by debt plus equity, understates the return for a company with debt. Return on assets in its common form is the exception: net income belongs to shareholders, while the assets are funded by lenders and shareholders together, so some analysts add after-tax interest expense back to the numerator. The net income version stays in use because it links directly to return on equity.

Return on invested capital

Net operating profit after tax, usually operating income multiplied by one minus the tax rate, divided by invested capital, the debt and equity that fund the company's operating assets, typically measured net of cash not needed in the business. It measures the return the operations earn independently of how they are financed.

Comparing the ratios across companies shows how much the base matters:

The returns use net income and average balances from each company's latest annual report. The last column explains most of the difference between the first two: return on equity equals return on assets multiplied by the ratio of assets to equity, the relationship at the heart of DuPont analysis.

Return on equity is the ratio shareholders and many investors quote first, and it is the one most affected by things other than the business. Share repurchases reduce equity; so do dividends above earnings and accumulated losses. Apple and Home Depot have spent many years buying back stock, as described in share repurchases and treasury stock, and their book equity is now small relative to their assets and earnings. Their returns on equity are high because the denominator is small, not because the businesses are four or five times as profitable as Microsoft's.

Leverage works the same way. Borrowing to fund operations, or to buy back shares, raises return on equity as long as the business earns more than the after-tax cost of the debt, while making the equity riskier. Two companies with identical operations and different capital structures can report very different returns on equity, which is why it is a poor measure of operating quality on its own.

Where Return on Equity Is Still the Right Measure

For banks and insurers, return on equity remains central, because their equity is the regulatory capital that limits how much they can lend or underwrite, and leverage is part of the business model. Bank analysts also use return on tangible common equity, which removes goodwill and intangibles from the base, as explained in the FIG guide's article on ROE, ROTCE and ROA. For other companies, return on equity is most useful when compared with the cost of equity, and when equity has not been distorted by buybacks or losses.

Return on invested capital strips out financing and focuses on operations. Its two components each involve choices, and companies, analysts and data providers make them differently.

NOPAT

The numerator, net operating profit after tax (NOPAT), is usually operating income multiplied by one minus a tax rate. The rate can be the statutory rate, the company's effective tax rate or its cash tax rate; Home Depot uses its effective rate. Operating income should exclude one-off items and non-operating income, such as investment gains, so that the return reflects the recurring business. For Costco, operating income of $11.7 billion taxed at its effective rate of 24.7% gives NOPAT of about $8.8 billion.

Invested Capital

The denominator can be built from either side of the balance sheet. The financing approach adds debt and equity and subtracts cash not needed in the business. The operating approach adds the operating assets the capital funds, working capital, property and equipment, intangibles and goodwill. Done consistently, the two give the same answer. Using averages of the opening and closing balances matches the capital to the period over which the profit was earned.

Goodwill, Leases and Other Choices

Three other choices change the result materially. Goodwill and acquired intangibles are part of the price an acquirer paid, so including them shows the return on the capital actually spent, while excluding them shows the return of the underlying operations; the two views answer different questions, and McKinsey's long-running research on ROIC measured it both ways, finding that the median US nonfinancial company earned close to 10% excluding goodwill from 1963 to 2004. Operating lease liabilities can be added to invested capital, with the interest element of lease costs added back to NOPAT, so that companies that lease and those that own are measured alike. And companies' own reported ROIC figures follow their own definitions: Home Depot divides NOPAT by average long-term debt and equity without deducting cash, which gave 25.7% for its fiscal 2025, the year to February 2026, according to its fiscal 2025 annual report.

Return on invested capital matters for valuation because of its relationship to the cost of capital. A business creates value when it earns more on its invested capital than investors require, its weighted average cost of capital (WACC), explained in the Valuation guide's article on WACC. The difference, multiplied by the capital invested, is economic profit: a company with $1,000 of invested capital, a return of 15% and a cost of capital of 9% earns $60 a year more than its investors require.

The implication for growth is direct. A company earning more than its cost of capital creates value each time it reinvests, so growth increases its value. A company earning less destroys value as it grows, however impressive its revenue and earnings growth may look. That is why return on invested capital, together with growth, explains much of the difference in valuation multiples between companies, and why bankers look at both.

In comparable company analysis, returns help explain why peers trade at different multiples: higher returns and faster growth justify higher multiples of earnings. In acquisitions, the buyer's ROIC usually falls at first, because the price includes goodwill and intangibles that the target never carried, as Home Depot's did after its debt-financed purchase of SRS, and the question is how quickly the acquired profits catch up. In financial institutions, return on equity and return on tangible equity drive valuation through their relationship with price to book. And in assessing management, returns show whether capital allocation, between reinvestment, acquisitions, dividends and buybacks, has added value.

Whatever the use, the definition should be stated and applied consistently. A return ratio quoted without its numerator, denominator and treatment of cash, goodwill and leases is not comparable with any other, and the differences between definitions are often larger than the differences between the companies being compared. The broader framework in which returns sit, alongside growth, margins and cash conversion, is set out in how bankers analyze financial statements.