Reverse Fee Calculator
Estimate how much to charge so you receive a target amount after seller fees. Inputs stay in your browser and are not sent to a server.
Independent estimate and input privacy
Scope boundary: these tools do not verify bank accounts, IBAN, BIC/SWIFT, SEPA eligibility, payout timing, or bank-transfer charges.
When to use reverse fee calculation
Reverse fee calculation is useful when you need an invoice target amount, a freelance payment target, a marketplace payout target, or client billing where the seller wants a fixed net amount.
Choose the platform or custom fee formula that matches the payment you expect, then enter the amount you want to receive after fees.
How reverse calculation works
The calculator estimates the gross amount to charge so that the amount remaining after fees is close to your target received amount.
For a simple percentage-plus-fixed fee, the direct formula is: required charge = (target received + fixed fee) / (1 - percentage fee).
Simple percentage-plus-fixed formulas can be solved directly. Tiered marketplace formulas may require approximation because the fee can change as the gross amount crosses a threshold.
Example
If your target received amount is USD 100.00 and your fee formula is 3.49% + USD 0.49, the required charge will be higher than USD 100.00 because the fee is deducted from the gross amount.
For a 2.9% + USD 0.30 custom fee example, the direct calculation is (100.00 + 0.30) / (1 - 0.029), or approximately USD 103.30 before rounding and any platform-specific rules.
Note: the result card may show a different required charge when the selected platform uses a different fee rule. The USD 103.30 example is only a simple 2.9% + USD 0.30 custom-fee formula example.
Target received examples
To receive USD 25.00 after a simple 2.9% + USD 0.30 fee, the gross-up formula gives about USD 26.06 before rounding.
To receive USD 100.00 after the same simple fee, the formula gives about USD 103.30 before rounding.
To receive USD 1,000.00 after the same simple fee, the formula gives about USD 1,030.18 before rounding.
The active result card always uses the selected platform or custom fee rule, so these examples explain the math rather than override the calculator result.
Rounding tolerance
Payment amounts must be rounded to the currency minor unit. The final amount received can differ by a cent from the target when a platform fee and fixed charge are applied to a rounded customer charge.
Limitations
Actual fees may vary by platform, country, card type, marketplace category, currency conversion, subscription, account type, refund, dispute, tax handling, and custom pricing. Results are estimates only.