AscendLab

Finance calculators

支付手续费计算器

Free browser tool

Payment Fee Calculator

Calculate percent plus fixed payment processing fees, net received amount, or the gross charge needed for a target net.

Fee inputs
Calculate percent plus fixed payment processing fees, or gross up a target net amount.
Payment fee result
Check your provider contract for the exact fee rules.

Gross

$100.00

Fee

$3.20

Net

$96.80

Quick answer

Payment fee equals gross amount times percent fee plus a fixed fee.

Gross-up mode estimates the charge needed to receive a target net amount after fees.

Best inputs

Use provider terms

Enter the exact percent and fixed fee from your processor.

Separate taxes

Calculate tax, platform fees, and chargebacks separately when needed.

Payment fee formula
The calculator supports fee deduction and gross-up estimates.
Fee = gross x percent rate + fixed fee.
Net = gross - fee.
Gross needed = (target net + fixed fee) / (1 - percent rate).
Example, Assumption, and Limitation
Use the result as a practical estimate or transformation, then confirm edge cases for critical work.

Example

$100 at 2.9% plus $0.30 leaves about $96.80 after fees.

Assumption

The processor uses a simple percent plus fixed fee structure.

Limitation

Tiered pricing, currency conversion, refunds, chargebacks, and taxes are not included.

Common use cases
These pages are built for lightweight browser-side work, examples, and planning.

Invoices

Estimate net income after processing fees.

Creator sales

Check platform payout assumptions.

Client quotes

Gross up a target received amount.

Finance planning

Compare fee scenarios quickly.

Frequently asked questions

How are payment fees calculated?

A common fee model is gross amount multiplied by a percent fee, plus a fixed fee.

Can I calculate the gross amount needed to receive a net amount?

Yes. Use the gross needed mode to estimate what to charge before fees.

Does this use live provider rates?

No. Enter the percent and fixed fee from your payment provider or contract.

Does this include taxes or chargebacks?

No. It only calculates the percent plus fixed processing fee model.

Suggested workflow

Payment planning workflow

Estimate fees, calculate tax, then check profit margin.