How to Calculate Net Profit for a Small Business

Net profit is the money left from your sales after every cost is paid — direct costs, overhead, taxes, and interest. It is the clearest single number for whether your business is actually making money.

What net profit means

Revenue is what customers pay you. Net profit is what you keep after every expense. Two businesses with the same revenue can have very different net profit depending on costs.

Why it matters for small business

• Tells you if the business is sustainable in the long run.
• Shows whether you can pay yourself, reinvest, or save.
• Helps compare months, years, and product lines.

Simple formula

Net Profit = Revenue − Direct Costs − Overhead − Taxes − Interest

Practical example

A small shop earns €12,000 in a month. Direct costs of goods sold are €5,000. Overhead (rent, utilities, salaries, software) is €4,500. Taxes and interest add €800. Net profit = 12,000 − 5,000 − 4,500 − 800 = €1,700.

How to interpret the result

• Positive and growing: the business model is working.
• Positive but small: a small cost increase could push you into a loss.
• Negative: review pricing, direct costs, and overhead before scaling.

Next steps

• Track net profit every month, not only at year end.
• Compare it to the same month last year for context.
• Identify the one or two costs that move the result the most.