PayPal vs Stripe Fee Calculator & Comprehensive Processing Guide
Calculating payment gateway processing fees accurately is critical for maintaining profitable margins across e-commerce, SaaS platforms, agency billing, and digital storefronts. While Stripe and PayPal both power global commerce, their pricing models diverge significantly across domestic card processing, wallet transactions, cross-border payments, and currency conversion markups.
Use the interactive calculator below to evaluate real-time transaction costs, compute net payouts, and calculate gross-up billing amounts for both platforms.
The Mathematics of Merchant Processing Fees

Understanding merchant fee calculations requires distinguishing between Forward (Standard Deductive) Math and Reverse (Gross-Up) Math.
1. Forward Calculation: Net Payout from Charge
When you charge a client or customer a specific gross price, the processing gateway applies a percentage cut () plus a fixed dollar fee ().
Example (Stripe Domestic Card on $100.00 Charge):
2. Reverse Calculation: Gross-Up Charge for Target Net
If you operate an agency or freelance business and want to receive exactly $100.00 in net profit after fees, simply adding 2.9% + $0.30 ($103.20) will leave you short. This happens because the gateway assesses its percentage fee on the new, higher gross total.
To arrive at the exact gross billing amount required to net your target payout, use the Gross-Up Formula:
Example (To Net $100.00 on Stripe Domestic Card):
Verification:
Example (To Net $100.00 on PayPal Checkout Wallet at 3.49% + $0.49):
PayPal vs Stripe Fee Calculator Breakdown

PayPal’s pricing structure varies according to how the customer completes the transaction (wallet vs. credit card), account tier, and geography.
┌────────────────────────────────────────────────────────────────────────┐
│ PAYPAL ONLINE FEE STRUCTURE │
├───────────────────────────────────┬────────────────────────────────────┤
│ Transaction Type │ Rate Structure │
├───────────────────────────────────┼────────────────────────────────────┤
│ PayPal Checkout / Venmo Wallet │ 3.49% + $0.49 fixed fee │
│ Standard Credit / Debit Card │ 2.99% + $0.49 fixed fee │
│ Advanced Credit / Debit Card API │ 2.89% + $0.29 fixed fee │
│ Invoicing (Credit/Debit Card) │ 2.99% + $0.49 fixed fee │
│ Invoicing (ACH Bank Transfer) │ 1.00% (capped at $10.00) │
│ PayPal POS / In-Person (Zettle) │ 2.29% + $0.09 fixed fee │
│ Micropayments (<$10 transactions) │ 4.99% + $0.09 fixed fee │
└───────────────────────────────────┴────────────────────────────────────┘
Key Considerations for PayPal Processing
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Wallet vs. Card Rates: PayPal charges its highest tier (3.49% + $0.49) when customers log in and pay using their PayPal balance or linked Venmo account. Standard guest checkout card payments incur a lower rate of 2.99% + $0.49.
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Cross-Border Fees: International payments incur a 1.50% cross-border surcharge.
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Currency Conversion Markup: Converting non-USD payments into USD adds a 3.00% to 4.00% currency conversion spread over wholesale interbank rates. Total international FX fees can reach 8.50% to 9.50%.
Stripe Merchant Fee Breakdown
Stripe utilizes flat-rate pricing for standard accounts, charging identical rates across major card networks (Visa, Mastercard, American Express, Discover).
┌────────────────────────────────────────────────────────────────────────┐
│ STRIPE ONLINE FEE STRUCTURE │
├───────────────────────────────────┬────────────────────────────────────┤
│ Transaction Type │ Rate Structure │
├───────────────────────────────────┼────────────────────────────────────┤
│ Domestic Online Card Payments │ 2.90% + $0.30 fixed fee │
│ Manually Keyed Card Payments │ 3.40% + $0.30 fixed fee │
│ Stripe Terminal (In-Person) │ 2.70% + $0.05 fixed fee │
│ ACH Direct Debit (Bank Payment) │ 0.80% (capped at $5.00) │
│ International Card Surcharge │ +1.50% added to base rate │
│ Currency Conversion Surcharge │ +1.00% added to base rate │
│ Buy Now Pay Later (Klarna/Afterpay)│ 5.99% + $0.30 fixed fee │
└───────────────────────────────────┴────────────────────────────────────┘
Key Considerations for Stripe Processing
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Predictable Base Rates: Standard domestic cards process at 2.9% + $0.30 regardless of whether the buyer uses a premium rewards credit card or debit card.
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International Card surcharges: Charging a non-US issued card adds 1.5% (totaling 4.4% + $0.30). If foreign currency conversion is required, an additional 1.0% fee applies (totaling 5.4% + $0.30).
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ACH Cost Savings: Stripe ACH Direct Debit caps processing fees at $5.00 per successful charge, making it ideal for high-ticket transactions.
Side-by-Side Scenario Comparison
Below is a fee comparison across standard transaction amounts, demonstrating where each platform holds an advantage.
Hidden Processing Costs: Refunds, Chargebacks, and FX Spreads
Beyond standard processing rates, secondary merchant fees affect overall profitability:
1. Refund Processing Fee Retention
Both Stripe and PayPal retain original processing fees when a refund is issued.
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Scenario: A customer buys a $200 item on Stripe (fee = $6.10). They request a full refund.
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Outcome: The customer receives $200 back. Stripe retains the $6.10 fee, deducting $200 from your balance. The transaction nets a -$6.10 loss.
2. Dispute & Chargeback Fees
When a buyer files a formal dispute or chargeback through their credit card issuer:
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Stripe: Charges a flat $15.00 per dispute. If you win the dispute, the $15 fee is refunded.
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PayPal: Charges a flat $20.00 chargeback fee.
3. Currency Conversion (FX) Markups
Processing foreign currencies involves two distinct charges:
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Cross-Border Card Origin Fee: Assessed when the cardholder’s bank is outside your home operating country (+1.5% on Stripe, +1.5% on PayPal).
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FX Currency Spread: Applied when converting foreign sales into your payout currency (+1.0% on Stripe vs. 3.0%–4.0% spread on PayPal).
How to Lower Payment Gateway Fees
Shift High-Value Invoices from Cards to ACH
For transaction amounts above $625, credit card processing fees scale linearly, while ACH Direct Debit fees hit their cap.
CARD VS. ACH FEES BY INVOICE SIZE
$100 Fee ──┐
│ Card (2.9% + $0.30)
$75 Fee ──┤ /
│ /
$50 Fee ──┤ /
│ /
$25 Fee ──┤ /
│ ______/ ACH (Capped at $5.00)
$0 Fee ──┴───────────┬──────────────┬──────────────┬──
$500 $1,500 $3,000
Transaction Amount
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On a $3,000 Invoice:
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Card Fee (Stripe):
-
ACH Direct Debit Fee (Stripe): Capped at $5.00
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Total Savings: $82.30 per invoice
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Implement a Surcharging Strategy (Where Legally Permitted)
Depending on local regulations (e.g., US state laws, UK/EU Surcharging Ban directives under PSD2):
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B2B / Invoicing: Add a dedicated “Credit Card Processing Surcharge” line item using the Gross-Up Formula to recover exact processing overhead.
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E-Commerce Checkout: Provide discounts for direct bank payments (ACH/SEPA/Faster Payments) to incentivize lower-cost payment methods.
Utilize Dual-Gateway Routing
A dual-gateway approach pairs Stripe as the primary credit card processor (for lower fees and developer flexibility) with PayPal as a wallet alternative. Offering PayPal can boost checkout conversion rates by 15%–25%, offsetting its higher wallet processing costs through increased total sales.