---
title: "WooCommerce Payment Gateway Fees and Margin Math"
description: "Stripe, PayPal, and local gateways change contribution margin. How Woo stores should model all-in payment cost."
date: 2026-04-27
updated: 2026-04-27
author: CostRadar Editorial
tags: [woocommerce, payments, fees]
heroKeyword: WooCommerce payment fees
draft: false
---

WooCommerce has no single payment fee. Merchants choose their own gateway mix, which makes it a pricing and margin decision rather than a fixed cost to accept passively.

## Why Woo has no single fee

Stripe, PayPal, and local processors each carry different percentage, fixed, and cross-border fee structures. Running several gateways side by side—common for conversion reasons—means the blended cost per order depends on how volume actually splits between them.

## Modeling blended cost

Weight each gateway's fee by its share of transaction volume, and track dispute and chargeback fees separately—they vary sharply by processor and by product category, and a gateway with a lower headline rate can still cost more once disputes are included.

## When to renegotiate or switch

Once volume crosses a processor's next pricing tier, or once dispute rates justify paying a higher headline rate for stronger fraud tooling, it is worth re-running the blended cost model rather than assuming last year's rate still applies.

## FAQ

**Should currency conversion fees be modeled separately?**

Yes—cross-border and FX fees often exceed the base processing rate for international WooCommerce orders and deserve their own line in the margin model.

**Do buy-now-pay-later gateways change the math?**

Yes. BNPL options typically carry a higher percentage fee in exchange for AOV lift—measure the net effect on contribution margin, not conversion rate alone.

---

CostRadar pulls gateway fees into the same cost ledger as COGS and shipping, so a multi-gateway WooCommerce stack still produces one clear contribution margin number.