METHOD & GUIDANCE
How this calculation works
Keep every input on the same time basis—for example, one month or one financial year—and do not mix cash figures with accrual figures. Tool IQ recalculates every output immediately; nothing you enter is saved or sent to us.
How to use the result
Reconcile GMV to platform revenue, then subtract payment processing and operating costs before deciding whether volume or take-rate growth creates value.
Worked example
The opening case applies a 12% take rate to 475,000 GMV after refunds, producing 57,000 platform revenue before processing and operating costs.
Common mistakes
- Calling GMV company revenue.
- Applying the take rate before refunds inconsistently.
- Leaving seller incentives, fraud, support or payment cost out of contribution.
Frequently asked questions
Is the marketplace take rate calculator free?
Yes. It requires no account and stores no calculation inputs.
Can I use the answer for a formal filing?
No. It is a planning estimate, not accounting, tax, legal or investment advice. Confirm material decisions with a qualified professional.
Which period should I use?
Keep every input on the same basis—for example, one month or one financial year. Use current figures first, then save a cautious scenario for comparison.
Continue the decision
- Average Order Value Calculator — Connect order value with margin, repeat buying and CAC.
- Contribution Margin Calculator — See how much each sale contributes to fixed costs.
Popular small-business decision paths
- Build the next cash-flow forecast
- Measure how quickly invoices become cash
- Calculate UK late-payment interest
Method reviewed 5 August 2026. Figures are illustrative and calculated locally in your browser. Official sources are linked where a rule or obligation affects how the result should be used. Read the Tool IQ calculation standard for our checking process, limitations and corrections policy.