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How much am I actually keeping?

Enter your numbers below. Get the answer first, then Koala's next move.

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Numbers to enter
Use figures from the same accounting period. Net margin is calculated against revenue, not gross profit, and a loss stays negative rather than being rounded up to zero.

Use revenue on the same tax/accounting basis as the gross-profit figure below.

Revenue minus COGS. This can be negative if the business made a gross loss.

Enter the tax expense/amount that applies to this same period. Leave 0 only if you intentionally want the pre-income-tax result. MarginKoala does not guess your tax treatment.

Koala's Calculated Result
Profit after the expenses entered, with net margin measured against revenue.

Enter the numbers you know

The detailed explanation will appear here once the calculator has a result.

Add revenue and gross profit for the same period, then the expenses that sit below gross profit.

Koala's Professional Opinion

Give Koala your numbers first

The decision and next steps will appear here.

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Definition and method

What this calculator answers

Net profit from gross profit, opex, interest, D&A and other — pre income tax. The headline "what is left" figure.

Profit after expenses

Net profit is revenue less all recognised expenses for the period, including income tax when applicable. If tax is not included in the inputs, the result is profit before income tax and must be labelled that way rather than treated as final net income.

Worked example: your figures

The interactive result above is the worked example. Change any input and the same deterministic engine recomputes the answer; this page does not insert a generic example business or silently treat example values as a benchmark.

  • No market benchmark or outcome is silently inserted by this page.

What should I check next?

Frequently asked questions

What is net profit?

Net profit is what remains after all recognised expenses for the period, including income tax where applicable. If income tax has not been included, call the result profit before income tax rather than final net profit.

Net Profit

Why isn't income tax modeled here?

Income tax changes with legislation and the right answer depends on the structure of the business (sole trader, partnership, company). Use the headline operating result as your planning lens; treat tax as a downstream decision.

Net Profit

What is D&A in net profit?

Use the calculator result for the inputs entered and keep any market-response or operating recommendation separate from the deterministic calculation. Support that additional assumption with the business’s own evidence or an explicitly labelled scenario.

Net Profit

What's a healthy net margin?

There is no universal numeric benchmark for this decision. The right comparison depends on the industry, geography, business model, time period and exact metric definition. Use the business’s own history, economics and explicit target unless a verified benchmark matching that scope is available.

Net Profit

Educational use, not financial advice. Numbers are estimates for planning; consult a qualified professional before acting on them.