Net Income Calculator
Use this quick tool to calculate net income for a business period.
Formula: Net Income = (Revenue + Other Income) - (COGS + Operating Expenses + Interest + Taxes + Other Expenses)
What is net income?
Net income is the amount of profit left after all business expenses are subtracted from total income. It is often called the “bottom line” because it appears at the bottom of an income statement. If the number is positive, the business earned a profit. If it is negative, the business operated at a loss for that period.
The basic formula to calculate net income
The simplest formula is:
Net Income = Total Revenue - Total Expenses
This formula works for a quick estimate, but in real financial analysis, you usually expand both sides for better accuracy.
Expanded formula (business use)
A practical version used by many businesses is:
Net Income = (Sales Revenue + Other Income) - (COGS + Operating Expenses + Interest Expense + Taxes + Other Expenses)
- Sales Revenue: Money earned from core products/services
- Other Income: Non-core earnings (interest income, asset sale gains, etc.)
- COGS: Direct costs to produce goods/services sold
- Operating Expenses: Rent, salaries, software, marketing, utilities
- Interest Expense: Cost of debt financing
- Taxes: Income tax obligations
- Other Expenses: One-off or non-operating costs
Step-by-step method
1) Add all income sources
Start with total sales and add any additional income not directly tied to operations.
2) Add all expenses
Combine direct costs, operating costs, financing costs, and taxes for the same accounting period.
3) Subtract total expenses from total income
The remaining amount is your net income.
Worked example
Assume a company reports the following for one month:
- Revenue: $120,000
- Other Income: $2,000
- COGS: $45,000
- Operating Expenses: $38,000
- Interest Expense: $2,500
- Tax Expense: $8,000
- Other Expenses: $1,500
Total Income = $122,000
Total Expenses = $95,000
Net Income = $122,000 - $95,000 = $27,000
Net income vs related metrics
Gross profit
Gross profit subtracts only COGS from revenue. It does not include operating costs, interest, or taxes.
Operating income
Operating income measures profit from core operations before interest and taxes. It is useful for assessing operating performance without capital structure effects.
Cash flow
Net income is not the same as cash flow. Net income includes non-cash items (like depreciation), while cash flow tracks actual money movement.
Common mistakes when calculating net income
- Mixing monthly revenue with annual expenses
- Forgetting non-operating income or one-time expenses
- Ignoring interest or taxes in “final” calculations
- Using accrual figures in one line and cash figures in another
- Not adjusting for refunds, returns, or discounts
Personal net income formula (take-home pay)
For individuals, net income usually means money received after deductions:
Personal Net Income = Gross Pay - (Taxes + Benefits + Retirement Contributions + Other Deductions)
This is what arrives in your bank account and what you can budget with.
How to improve net income
- Increase pricing where value supports it
- Reduce COGS through supplier negotiation or process efficiency
- Control overhead and recurring subscriptions
- Refinance high-interest debt when possible
- Plan taxes strategically with a qualified professional
Final takeaway
If you remember one line, remember this: Net Income = Total Income - Total Expenses. Use the expanded version for better accuracy, track it consistently each month, and pair it with cash-flow analysis for a complete financial picture.