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Card processing fee formula
Multiply the payment by the entered percentage, then add the fixed fee when the payment is positive.
CalculatorsFREE · NO SIGNUP
Credit Card Processing Fee Calculator
Calculate a card-processing deduction from the exact percentage and fixed fee in your processor quote or statement.
FREE TO USEA LOOK ATLAS TOOL
01 USE IT NOW02 NO ACCOUNT03 FIELD NOTES BELOW
WORKING INPUTS
Model the rate you actually pay.
LIVE RESULT
Estimated processing fee
$3.20User-entered rate model only; confirm the actual processor statement and any extra deductions.NET RECEIPT$96.80
EFFECTIVE RATE3.20%
GROSS FOR TARGET NET$103.30
ENTERED RATE2.9% + $0.30
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YOUR RATE, NOT A GENERIC PROMISE
Put the percentage and fixed fee on separate lines
Processor pricing varies by agreement, payment route, card, and country. Entering both quoted components keeps the deduction and reverse-net math auditable.
WORKING VIEW
$3.20 FEE$100 · 2.9% + $0.30
METHODpayment amount × entered percentage + entered fixed fee
WORKING NOTE$96.80 modeled net receipt
INPUTS → CLEAR OUTPUT
THE FIELD NOTES
Quick answer above. Better decisions below.
Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.
$100 · 2.9% + $0.30$3.20 FEE
$96.80 modeled net receipt
02
Use the rate from the actual payment route
Card-present, online, manual-entry, international, and premium-card transactions can use different pricing.
03
Read the effective rate on small orders
A fixed fee consumes a larger share of a small payment than a large one.
04
Keep other deductions outside the base model
Chargebacks, currency conversion, subscriptions, hardware, instant payouts, taxes, and custom tiers are excluded unless reflected in the fields.
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Card processing fee formula
Multiply the payment by the entered percentage, then add the fixed fee when the payment is positive.
The reverse calculation adds the fixed fee to the target net and divides by one minus the percentage rate.
Use the rate from the actual payment route
Card-present, online, manual-entry, international, and premium-card transactions can use different pricing.
Treat the defaults as an editable example rather than an account quote.
Read the effective rate on small orders
A fixed fee consumes a larger share of a small payment than a large one.
The effective-rate row makes that order-size effect visible.
Keep other deductions outside the base model
Chargebacks, currency conversion, subscriptions, hardware, instant payouts, taxes, and custom tiers are excluded unless reflected in the fields.
Your processor statement remains the source of truth.
Questions, answered.
How do I calculate a credit card processing fee?
Multiply the payment by the percentage rate and add the fixed transaction fee.
Can I calculate what to charge for a target net amount?
Yes. The reverse result solves the same entered percentage-plus-fixed-fee model and rounds upward to cents.
Does this quote my processor's current rate?
No. Enter the rate from your current agreement or statement; the tool does not fetch account pricing.
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