Most payment gateways in the US charge around 2.9% plus 30¢ per online card transaction — Stripe and Shopify Payments both start there, per Eightx's 2026 platform breakdown. But the sticker rate is not what lands in your bank account. Once you add chargeback fees, currency conversion, refund handling, and platform surcharges, your real all-in cost runs closer to 3.5% to 4.5% of revenue. This guide shows you every layer, then walks the per-order math so you can compare gateways on profit, not headline percentages.

If you're comparing gateways, you've probably noticed every provider advertises a clean number like "2.9% + 30¢." That number is real, but it's the floor. The gap between the advertised rate and your actual deposit is where most sellers lose margin they never account for.

How payment gateway fees actually work

Every card payment you accept passes through a stack of players: the card network (Visa, Mastercard), the issuing bank, and your gateway or processor. The fee you pay bundles all of them into one deduction.

Almost every fee has two parts: a percentage of the sale and a fixed per-transaction fee. The percentage covers risk and network costs; the flat fee covers the fixed cost of moving one transaction. This is why small orders hurt more — a 30¢ flat fee is a rounding error on a $200 order but a real tax on a $12 one.

Flat-rate vs. interchange-plus pricing

Most sellers start on flat-rate pricing, where you pay the same blended percentage on every card. It's simple and predictable, which is why Stripe, PayPal, and Shopify Payments all use it by default.

Higher-volume merchants often move to interchange-plus, where you pay the raw network cost plus a fixed markup. Providers like Helcim and Adyen pass interchange savings straight to the merchant, which usually wins once you're processing tens of thousands of dollars a month. Below that volume, the simplicity of flat-rate usually beats the small savings.

Payment gateway fees compared

Here are the published US online card rates for the three gateways most direct-to-consumer sellers actually choose. Rates below are current as of the sources linked directly beneath the table.

Gateway US online rate Chargeback fee International / FX
Stripe 2.9% + 30¢ ~$15 per dispute +1.5% international cards
PayPal 3.49% + 49¢ ~$20 per dispute +1.5% cross-border
Shopify Payments (Basic) 2.9% + 30¢ ~$15 per dispute +1% international, +~1–1.5% currency conversion

Sources: Stripe and PayPal rack rates per Eightx's 2026 platform breakdown; Shopify Payments fee schedule, chargeback fee, and currency surcharges per Webgility's Shopify payouts guide and the ReportPundit payouts summary.

Shopify Payments also drops as you climb plans: roughly 2.7% + 30¢ on Grow, 2.5% + 30¢ on Advanced, and about 2.15% + 30¢ on Plus, according to Webgility. If you sell mostly higher-priced items, that half-point spread between plans can matter more than the monthly plan fee itself.

The Shopify third-party gateway surcharge

Here's the layer that catches Shopify sellers off guard. If you run your store on Shopify but process through Stripe or PayPal instead of Shopify Payments, Shopify adds its own surcharge on top of whatever the processor charges.

That surcharge runs from about 2.0% on Basic down to 0.2% on Plus, according to CartWorks' Shopify gateway comparison. On the Basic plan, routing a US card through Stripe can cost an effective 4.9% + 30¢ once you stack Stripe's 2.9% and Shopify's 2.0% — nearly double Shopify Payments' rate for the identical sale.

CartWorks estimates that on a store doing around fifty thousand dollars a month on Basic, picking the wrong gateway is an extra thousand dollars every month, per their analysis. For most Shopify merchants, the surcharge alone settles the "which gateway" question.

The fees the sticker price hides

The advertised rate assumes a clean, domestic, non-refunded sale. Real order flow is messier, and each wrinkle adds cost:

  • Chargebacks and disputes. A single dispute costs roughly $15 on Shopify Payments and around $20 on PayPal, per Webgility and Eightx — and that fee usually sticks even if you win.
  • Currency conversion. Selling to international buyers adds roughly 1% to 1.5% for the international card plus a conversion spread, per the ReportPundit payouts summary.
  • Buy-now-pay-later. Offering Klarna or Affirm through Stripe passes through around 6% + 30¢, per Eightx — far above a plain card sale.
  • Refunds. When you refund an order, you get the sale back minus what the processor already kept, so the percentage fee is often gone for good.

Stack these together and the blended take-rate published in Shopify's own filings sits around 2.33% of merchant revenue, per Eightx — but that's an average across clean sales. Your worst-case orders (international, disputed, BNPL) run much higher.

Worked example: what fees really cost per order

Say you sell a print-on-demand hoodie for $45, plus $6 shipping and $4 tax, for a $55 order total. Your product cost from the supplier is $22, and you spent $9 in ad clicks to win the sale.

Your gateway fee on Shopify Payments Basic is 2.9% of $55 plus 30¢:

  • 2.9% × $55 = $1.595
    • $0.30 flat = $1.90 in gateway fees

Now the full per-order picture:

  • Revenue collected: $55.00
  • − Gateway fee: −$1.90
  • − Product cost: −$22.00
  • − Ad spend: −$9.00
  • − Shipping paid out: −$6.00
  • = Per-order profit: $16.10

Notice the fee is only about 3.5% of the order but it's roughly 12% of your actual profit. Now imagine the same order routed through Stripe on Basic with the third-party surcharge: 4.9% × $55 + 30¢ ≈ $2.99. That extra $1.09 comes straight off your $16.10, wiping out nearly 7% of the profit on a single sale — before a single refund or dispute.

Why your gateway fee never matches your dashboard

Here's the part gateway-comparison articles skip: even once you pick a gateway, the fees you see won't line up cleanly with your sales report. Shopify's sales report shows revenue; fees live in the payout, which is a batch of balance transactions — charges, refunds, chargebacks, and adjustments — settled together, not a tidy day of orders. Reconciling the two is its own discipline, which we cover in the guide to reconciling your ecommerce data.

That's why "gross sales minus fees" almost never equals your bank deposit. Fees are deducted per transaction across the payout period, and third-party gateway sales (like PayPal) never flow through the Shopify Payments payout at all. To see the real math, you have to read the Shopify payout reports line by line, then match them back to orders.

Gateway fees are also just one line in a longer margin story. Ad spend gets double-counted across cross-channel attribution, and if you're moving a catalog between platforms — say when you transfer an Etsy shop to Shopify — your fee structure changes entirely. Comparing gateways on the sticker rate misses all of it.

This is the gap PodVector closes. It connects your Shopify, Stripe, Meta Ads, Google Ads, Printify, and Printful accounts and computes true per-order profit — with the actual gateway fee, product cost, and ad spend netted out of every order. Victor, its AI operator, reads that live data and proposes moves you approve on the Shopify side, so you're comparing gateways on profit per order instead of a headline percentage.

FAQs

What is the average payment gateway fee?

For US online card sales, the common floor is about 2.9% + 30¢ per transaction, which is where both Stripe and Shopify Payments start, per Eightx. Real all-in costs typically run 3.5% to 4.5% of revenue once chargebacks, currency conversion, and BNPL mix are included, according to the same source. Treat the advertised rate as a best case, not your true cost.

Is Shopify Payments cheaper than Stripe or PayPal?

On a Shopify store, almost always — because Shopify adds a third-party gateway surcharge of roughly 2.0% on Basic down to 0.2% on Plus when you use an outside processor, per CartWorks. That can push an effective Stripe rate to 4.9% + 30¢ on Basic for the same sale Shopify Payments handles at 2.9% + 30¢. Off Shopify's platform, Stripe and Shopify Payments are priced almost identically.

Why is my payout less than my sales?

Because fees, refunds, and chargebacks are deducted from the payout, not the sales report. A payout is a batch of balance transactions settled together, so it won't match any single day's orders, and third-party gateway sales don't enter the Shopify Payments payout at all. See reconciling your ecommerce data for how to line the two up.

How do I lower my payment gateway fees?

Move to a higher Shopify plan if your volume justifies it — Advanced drops Shopify Payments to about 2.5% + 30¢ and Plus to roughly 2.15% + 30¢, per Webgility. High-volume merchants can also consider interchange-plus processors that pass network savings through. And avoid outside gateways on Shopify unless you have a specific reason, since the surcharge usually erases any savings.

Do refunds return my gateway fees?

Usually not the percentage portion. When you refund an order, the processor typically keeps the fee it already took, so a refunded sale can cost you money even though no revenue stuck. That's why refund-heavy categories need a wider margin to stay profitable per order.