Payment Processing Fee Calculator
Calculate exact transaction deductions and net take-home pay for Stripe, PayPal, Wise, and Lemon Squeezy. Reverse-calculate invoices to cover processing fees.
Gateway Fee Matrix
Live processing fee comparison for a $1,000.00 transaction across major platforms.
Volume impact
At 50 monthly transactions of this size, selecting Wise Business retains an estimated $17,694.00/year more than PayPal.
Common Transaction Scenarios
Select a preset to inspect fee structures across typical transaction sizes.
$5.00 Micro-transaction
Fixed fees take a larger percentage on small amounts.
$49.00 SaaS Subscription
Standard monthly recurring software billing.
$120.00 E-Commerce Cart
Direct-to-consumer order with international card surcharge.
$3,500.00 B2B Retainer
High-ticket commercial payment comparing bank transfer rates.
Formulas & Frequently Asked Questions
Technical breakdown of fee calculations and reverse invoice formulas.
Why adding 2.9% is insufficient: If you want to net $100 and charge $102.90, the payment processor deducts 2.9% from the new $102.90 amount (taking $2.98 + $0.30 = $3.28), leaving $99.62. The reverse formula solves for the gross amount required to yield your exact net target after deductions.
How much does Stripe take on a $100 charge?
For standard US domestic transactions, Stripe charges 2.9% + $0.30. On a $100.00 charge, the base fee is $3.20 ($2.90 variable + $0.30 fixed), resulting in a net payout of $96.80.
If the customer pays with an international card, an additional 1.5% cross-border fee applies ($1.50). If automatic currency conversion occurs, an extra 1.0% applies, bringing total fees to $5.70.
What is the difference between direct gateways (Stripe) and Merchants of Record (Lemon Squeezy, Paddle)?
Direct gateways (Stripe) process payments directly into your merchant account. You remain responsible for sales tax, VAT remittance, and compliance across jurisdictions.
Merchants of Record (Lemon Squeezy, Paddle) act as the legal reseller of your digital products, automatically collecting and remitting global sales tax/VAT on your behalf. While their percentage fee is higher (5% + $0.50), they eliminate international tax filing overhead for software sellers.
Can credit card processing fees be passed to clients (surcharging)?
In B2B contracts, convenience fees or payment processing surcharges are commonly included in the invoice or factored into contract pricing. In retail consumer transactions, credit card surcharges are subject to state and card network regulations and must not exceed the actual processing cost.
Are processing fees refunded when issuing a customer refund?
Neither Stripe nor PayPal return the original transaction processing fee when a refund is issued. The full amount is returned to the buyer, while the seller absorbs the original processing fee.