Shopify Third-Party Gateway Surcharge Calculator
Simulate combined processing costs when using external gateways (e.g. Stripe, Authorize.net) on Shopify stores.
Parameters & Config
Gross transaction amount billed to your customer
Percentage processing surcharge applied to gross order value
Per-transaction flat fee deducted by the platform
Cost of goods sold or fulfillment expense (Set to 0 for digital/software products)
Net earnings cleared into your bank account after all platform & gateway deductions
Cumulative fee deducted by platform and payment network
Key Metrics & Sub-Totals
3 itemsCalculation Summary & Unit Breakdown
| Metric | Calculated Value | Notes / Logic |
|---|---|---|
| Gross Transaction Charge | $100.00 | - |
| Percentage Processing Fee | $4.90 | 4.9% |
| Fixed Transaction Surcharge | $0.30 | - |
| Total Deducted Fees | $5.20 | - |
| Product / Service Cost (COGS) | $30.00 | - |
| Net Take-Home Revenue | $64.80 | - |
| Net Profit Margin | 64.8% | - |
| Break-Even Sales Price | $31.86 | Zero loss minimum price |
| Required Charge to Clear $100 Net | $137.01 | Reverse payout target |
Overview & Methodology
When merchants bypass native Shopify Payments and connect an external gateway (like PayPal, Stripe, or Authorize.net), Shopify penalizes the store with an extra 2.0% (Basic), 1.0% (Shopify), or 0.5% (Advanced) on top of the external gateway’s standard 2.9% + $0.30 fee.
Mathematical Formulation
Combined Fee = (Order × (Shopify Penalty% + Gateway%)) + Gateway Fixed Fee.Optimization Best Practices
Whenever geographically feasible, activate Shopify Payments to eliminate the 2.0% platform penalty immediately.
If your product category is prohibited on Shopify Payments (e.g. vape, supplements, firearms), budget the full ~4.9% fee into your pricing margins.
Negotiate custom volume interchange-plus rates with your high-risk merchant processor to offset Shopify’s platform penalty.
Frequently Asked Questions
Q.Why does Shopify charge a fee when I use my own payment processor?
Shopify charges this fee to incentivize merchants to adopt Shopify Payments (powered by Stripe) where Shopify captures interchange revenue share.
Q.How much fee do I pay on a $100 order with an external gateway on Shopify Basic?
You pay 2.0% to Shopify ($2.00) plus 2.9% + $0.30 to your gateway ($3.20), totaling $5.20 in deductions.
Q.Can the third-party fee be waived on Shopify Plus?
On Shopify Plus ($2,000+/mo enterprise tier), the third-party gateway fee drops to 0.15% to 0.30%.