B/Billable Toolkit
Free calculators for freelancers & small businesses
Free tool · no sign-up

Payment Processing Fee Calculator

Card and online payment providers take a percentage plus a fixed fee. Enter your provider's current rates to see the real cost.

$
%
$

Example rates only. Fees differ by provider, country and card type — check your provider's pricing page.

Result

How it’s calculated

To receive an exact amount, add the fixed fee and divide by one minus the percentage fee. Simply adding the percentage on top leaves you slightly short.

charge = (amount + fixed fee) ÷ (1 − percentage fee)

Worked example

To receive exactly $500 when the fee is 2.9% plus $0.30, charge $515.25. The fee on that charge is about $15.24, which is more than 2.9% of $500.

Related tools

Free Invoice GeneratorMake a professional invoice in your browser: line items, tax, discount and payment terms. No account, nothing uploaded. Print or save as PDF.Invoice Due Date & Late Fee CalculatorFind an invoice's due date from its payment terms (Net 7 to Net 90), see how many days overdue it is, and calculate the late fee owed.Sales Tax & VAT CalculatorAdd sales tax, VAT or GST to a price, or remove it from a tax-inclusive total to find the net amount.Self-Employed Tax Set-Aside CalculatorEstimate how much of each month's freelance income to put aside for income tax and social contributions, and what is safe to spend.

Questions

Can I pass payment fees on to clients?

In many places yes, if it is disclosed upfront, but some countries and card networks restrict surcharging. Check the rules where you and your client are.

Why isn't adding 2.9% enough?

The percentage is charged on the larger, grossed-up amount, so you need to divide rather than add.

Doing these numbers every month? Accounting software can automate invoices, reminders and tax reports.

See options

Embed this calculator

Free to use on your own website or blog. Paste this code where you want it to appear.