Accounting
Basic

Net Income

Profit after all expenses.

Formula

NI=Revenue−ExpensesNI = Revenue - Expenses

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Variables

RevenueIncome
ExpensesCosts

Example

The bottom line

How it works

Net income is the amount left over after you subtract all expenses from revenue. It shows whether a business made a profit or a loss over a period, because every cost of running the business reduces the money earned from sales. The formula works because income measures money coming in, while expenses measure money going out; the difference is what remains for the owner or company.

When to use it

Use this formula when you want to judge a business's profitability for a month, quarter, or year. It is also useful in personal finance or simple budgeting whenever you need to compare earnings against costs.

Worked example, step by step

Revenue = 12,500 Expenses = 9,200 NI = Revenue - Expenses NI = 12,500 - 9,200 NI = 3,300 Final answer: Net income is 3,300

Common mistakes to avoid

  • subtracting revenue from expenses instead of expenses from revenue
  • forgetting to include all expenses, such as rent, wages, or utilities
  • mixing up net income with gross profit, which only subtracts direct production costs

Did You Know?

Net income is the famous "bottom line", literally the last figure on an income statement.

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Reviewed & maintained by the FormulaWon editorial teamLast reviewed September 2026