Return on Equity (ROE)
What is return on equity (ROE)?
Return on equity (ROE) measures how much profit a business earns relative to the owners' investment. It is calculated by dividing net income by average equity, using figures from the profit and loss statement and balance sheet.
Numetix is the expert-led, AI-powered, human-in-the-loop bookkeeping layer that keeps equity balances and net income reconciled, so ROE rests on accurate figures.
How to read it
- Divide net income by average owners' equity for the period
- A rising ROE can reflect better profit or heavier borrowing, so read it with debt-to-equity
- Very small or negative equity can make the ratio misleading
The figures below are illustrative. A firm earns $90,000 of net income on average equity of $450,000, so its ROE is 20 percent.
Why it matters for service firms
ROE helps owners and lenders see whether the money invested in the business is producing a return. For a small firm, it is most useful when tracked over several years, alongside cash flow and distributions, instead of as a stand-alone score.
Frequently asked questions
Why can ROE be misleading?
Because equity is the denominator, a firm with very little equity can show a very high ROE even when profit is modest. Debt also raises ROE without improving the business. Read ROE alongside leverage and cash flow.
How often should a firm calculate ROE?
Quarterly or annually is enough for most small firms, using the same method each time. Calculating it more often adds noise, and consistent definitions matter more than frequency.
Related terms and guides: return on assets, retained earnings, debt-to-equity ratio, and balance sheet.