For a business, revenue is the total money taken from sales, while income normally means what is left after costs — "net income" is the bottom line of the accounts. For an individual, income means all money received, so a person's income behaves more like a company's revenue. Context decides which sense applies.
The confusing part: income shifts meaning
Revenue is stable. In business it always means gross sales for a period, before any deduction. Income is the slippery one. On a company's income statement, the first line is revenue and the last line is net income — the profit. So within a single document, income sits at the opposite end from revenue.
Move to personal finance and the meaning flips. Your income is your salary, freelance fees, interest and rent received — everything coming in, before tax. Nobody speaks of an individual's revenue.
Examples of each
- "Quarterly revenue reached $2.1bn." (sales)
- "Net income fell to $180m after restructuring charges." (profit)
- "Households on a low income qualify for the rebate." (money received)
- "Rental income covers the mortgage." (money received from one source)
The test
Ask who or what is earning. If it is a company and the figure is total sales, write revenue; if the figure has had expenses removed, write net income or profit. If it is a person or household, write income. Second check: find the word's position in the accounts. Revenue is at the top, income at the bottom — the two ends of the same statement.
Qualifiers do the real work
Because income is elastic, it almost always needs a modifier in financial writing: net income, operating income, gross income, taxable income, other income. Bare "income" in a business context is ambiguous, and readers will guess. Operating income, for instance, is profit from core trading before interest and tax — not sales at all.
Revenue takes qualifiers too, but they narrow the source rather than change the level: subscription revenue, deferred revenue, advertising revenue. All are still gross amounts.
Two further uses
Governments describe tax receipts as revenue — hence tax authorities being named after the word — and the same is true of local councils and public bodies. In non-profit accounting, income is often used where a company would say revenue, covering donations and grants as well as trading, which is a genuine exception to the rule above. When you are reading unfamiliar accounts, check the definition rather than assuming.