WooCommerce payment gateway fees: Full cost comparison

Key takeaways

• Major UK WooCommerce gateways charge 1.4-2.9% + £0.20-£0.30 per transaction, with Stripe at 1.5% + £0.20, Square at 1.4% + £0.25, and PayPal at 2.9% + £0.30

• International card transactions add 1-2% cross-border fees plus 2-3% currency conversion charges, creating 3-5% total costs on foreign sales

• Airwallex provides multi-currency accounts for WooCommerce stores that eliminate forced currency conversion and reduce international payment costs

When UK businesses build online stores with WooCommerce, selecting the right payment gateway affects profit margins on every transaction. Understanding fee structures, currency conversion costs, and how expenses scale with international sales determines which gateway aligns with business economics.

This guide explains WooCommerce payment gateway fees for UK merchants, comparing transaction costs, FX charges, and hidden fees across popular payment providers.

How WooCommerce payment gateway fees work

WooCommerce operates as an open-source ecommerce platform requiring separate payment gateway integration to process transactions. Unlike all-in-one platforms, WooCommerce merchants select third-party gateways handling payment authorisation and settlement.

Payment gateway fees represent costs for transaction processing, covering card network charges, fraud prevention, and fund settlement.

The fee structure combines percentage-based charges plus fixed per-transaction fees. A UK merchant processing a £100 sale through Stripe at 1.5% + £0.20 pays £1.70 in gateway fees.

WooCommerce charges no transaction fees. All payment costs come from the chosen gateway provider, making gateway selection directly impact profitability.

Types of payment gateways used with WooCommerce

WooCommerce merchants choose between hosted gateways that redirect customers off-site and direct integrations that process within checkout.

Stripe and Square represent direct integration gateways where customers enter payment details on the merchant's checkout page. PayPal operates as both hosted and direct integration. WooPayments functions as WooCommerce's native solution built on Stripe infrastructure.

WooCommerce payment gateway fees by provider

UK payment gateway fee comparison for WooCommerce:

For a UK business processing £10,000 monthly in domestic sales:

• Stripe: £152 monthly (£1,824 annually)

• Square: £165 monthly (£1,980 annually)

• PayPal: £293 monthly (£3,516 annually)

• WooPayments: £205 monthly (£2,460 annually)

Card transaction fees across WooCommerce gateways

Stripe offers competitive UK card processing at 1.5% + £0.20. European card transactions increase to 2.5% + £0.20, whilst other international cards cost 3.25% + £0.20.

Square provides the lowest percentage rate at 1.4% + £0.25 for UK cards, though the higher fixed fee makes it marginally more expensive on small transactions.

PayPal charges the highest baseline rate at 2.9% + £0.30 for UK domestic transactions. This premium pricing reflects PayPal's brand recognition and customer familiarity.

WooPayments sits mid-range at 1.75% + £0.30, offering competitive pricing for merchants preferring native WooCommerce integration.

WooCommerce gateway FX and cross-border fees

International payment handling creates the most significant cost differences between WooCommerce payment gateways, particularly affecting businesses serving European or global customers.

Stripe applies tiered international pricing: 2.5% + £0.20 for European Economic Area cards and 3.25% + £0.20 for cards issued outside Europe. Currency conversion adds 2% on top of these rates when merchants receive payments in foreign currencies, creating total international costs of 4.5-5.25%.

A UK merchant receiving a €500 payment (approximately £430 at typical exchange rates) from a German customer pays:

• Base processing: £10.95 (2.5% + £0.20)

• Currency conversion: £8.60 (2% of £430)

• Total fees: £19.55 (4.5% effective rate)

Square charges 2.5% + £0.25 for non-UK card transactions plus 1.5% for international transaction fees and 2% for currency conversion. These fees layer on top of each other, creating total international costs approaching 6% on foreign currency payments.

PayPal bundles cross-border fees into its pricing structure, charging 3.9% + £0.30 for payments where the buyer's account is registered in a different country than the seller. Currency conversion adds another 2.5-4% through unfavourable exchange rates that sit significantly above mid-market levels.

For UK WooCommerce stores where 30% of sales come from international customers, these FX fees compound significantly. A business processing £20,000 monthly with £6,000 in international sales faces approximately £270-£315 monthly in additional cross-border and conversion charges beyond domestic payment fees.

Additional gateway fees WooCommerce merchants often miss

Beyond standard transaction fees, gateways charge for various activities affecting total costs.

Chargeback fees apply when customers dispute transactions. Stripe charges £20 per dispute (refundable if won), Square applies no chargeback fees, and PayPal charges £14 per dispute.

Refund processing varies by provider. Stripe refunds percentage fees but retains fixed fees. PayPal and Square retain all transaction fees on refunds, meaning merchants lose processing costs even when sales don't complete.

Currency conversion rates embed hidden costs beyond stated fees. Gateways typically apply exchange rates 1-3% above mid-market levels.

Payout timing affects working capital. Stripe and Square offer next-day settlements, whilst PayPal can take 3-5 business days.

How payment gateway fees affect WooCommerce profit margins

Gateway fees directly erode profit margins, particularly impacting businesses with tight margin structures or product categories where price sensitivity limits markup flexibility.

A UK merchant selling products at 25% gross margin processing through PayPal at 2.9% + £0.30 loses approximately 12% of profit to payment fees. A £100 product with £25 margin incurs £3.20 in PayPal fees, representing 12.8% of the profit. Switching to Stripe at 1.5% + £0.20 reduces fees to £1.70, preserving an additional £1.50 per transaction.

High-volume stores amplify these cost differences through scale. A business processing £50,000 monthly through Square at 1.4% + £0.25 pays approximately £825 monthly in fees (£9,900 annually). Switching to Stripe at 1.5% + £0.20 would cost £772 monthly (£9,264 annually), saving £636 annually.

International customer mix creates the heaviest margin impact. UK merchants where 40% of sales come from foreign currency transactions face combined processing, cross-border, and conversion fees approaching 5-6% on international orders compared to 1.4-2.9% on domestic sales. This creates margin compression that forces businesses to either increase prices for international customers or accept reduced profitability on foreign sales.

Choosing the right WooCommerce payment gateway for your business

Gateway selection depends on sales volume, target markets, and operational priorities rather than fees alone.

For UK-focused businesses selling primarily to domestic customers, Stripe offers the best combination of competitive fees (1.5% + £0.20), robust features, and developer-friendly integration. Its extensive documentation and active community support make it reliable for businesses with technical resources.

Square provides marginally better percentage rates but higher fixed fees, making it optimal for businesses with average order values exceeding £75 where the percentage savings outweigh the fixed fee premium.

For international merchants serving European customers regularly, Stripe's 2.5% EEA card rate creates cost advantages over PayPal's 3.9% cross-border pricing. But, PayPal's brand familiarity may justify premium fees for conversion optimisation in markets where PayPal dominates consumer preferences.

High-volume businesses processing £100,000+ monthly can negotiate custom pricing with Stripe or alternative providers, often reducing percentage rates to 1.2-1.4%. These volume-based rates create meaningful savings at scale, justifying the effort required to negotiate and qualify for enterprise pricing tiers.

When WooCommerce gateway fees become a scaling issue

Certain growth patterns signal that standard gateway pricing may constrain profitability as businesses scale internationally.

Increasing international sales create escalating costs as cross-border and currency conversion fees compound. A UK store growing from 20% to 50% international sales sees payment costs increase disproportionately due to the 3-4% premium on foreign transactions beyond domestic processing fees.

Multi-currency complexity emerges when businesses want to price products in EUR, USD, and GBP whilst avoiding forced conversion fees. Standard WooCommerce gateways require merchants to operate in a single settlement currency, triggering conversion charges on all foreign payments even when merchants would prefer holding foreign currency for international supplier payments.

Higher transaction volumes justify exploring alternatives when processing exceeds £100,000 monthly. At this scale, the difference between Stripe's 1.5% and negotiated rates of 1.0-1.2% represents £500-£1,000 monthly in potential savings (£6,000-£12,000 annually), making it economical to invest time negotiating custom pricing or evaluating alternative payment infrastructure.

Reducing WooCommerce payment gateway costs with Airwallex

Traditional payment gateways built infrastructure primarily around single-currency settlement with international payments treated as add-ons carrying premium pricing. Modern alternatives approach global commerce differently.

Airwallex provides multi-currency business accounts that allow WooCommerce merchants to receive, hold, and settle payments in 20+ currencies without forced conversions. When accepting EUR from European customers, those euros remain as euros in your account until you choose to convert or use them for EUR-denominated expenses like European supplier payments.

Rather than paying Stripe's approach (1.5% UK + 2.5% EEA card + 2% conversion creating ~6% total international cost) or PayPal's structure (3.9% cross-border + 2.5% conversion creating ~6.4%), Airwallex offers transparent multi-currency processing that eliminates forced conversion fees entirely.

For UK WooCommerce stores processing £30,000 monthly with 35% international sales (£10,500 foreign currency), switching from standard gateway FX fees to Airwallex's multi-currency approach could save approximately £315-£420 monthly (£3,780-£5,040 annually) through eliminated cross-border charges and reduced FX costs.

Conclusion

WooCommerce payment gateway fees follow predictable structures for domestic UK transactions, with competitive options ranging from 1.4-2.9% plus fixed fees. For businesses selling primarily to UK customers, gateway selection affects margins modestly, making the choice between providers largely about feature preferences and integration quality.

But, as international sales grow, cross-border fees and currency conversion charges compound into substantial costs that traditional gateways embed into pricing. Understanding complete fee architecture—including international card premiums, FX conversion, and hidden charges—helps UK merchants evaluate whether standard gateways align with growth trajectories or constrain profitability as operations scale globally.

Open an Airwallex account today and access multi-currency payment processing designed for internationally scaling WooCommerce businesses.

FAQs

Do WooCommerce payment gateway fees differ by country or store location?

Yes, gateway fees vary significantly by merchant location. UK merchants pay 1.5% + £0.20 through Stripe, whilst US merchants pay 2.9% + $0.30 for identical transaction types. European merchants face different rate cards entirely based on local card network costs and regulatory environments. Always verify pricing specific to your business registration country rather than assuming published rates apply universally across markets.

Are WooCommerce payment gateway fees charged by WooCommerce or the provider?

Payment gateway fees are charged entirely by the gateway provider (Stripe, PayPal, Square), not by WooCommerce. WooCommerce is open-source software that charges no transaction fees, commissions, or percentage of sales. All payment processing costs come from whichever gateway you connect to your store, giving merchants control over payment economics through gateway selection.

Are international card fees higher on WooCommerce than Shopify?

International card fees depend on the payment gateway, not the ecommerce platform. A UK merchant using Stripe on WooCommerce pays identical international card fees to a UK merchant using Stripe on Shopify—both face the same 2.5% + £0.20 for EEA cards and 3.25% + £0.20 for other international cards. Platform choice doesn't affect gateway pricing, though Shopify Payments offers integrated pricing that may differ from third-party gateways available on both platforms.

Can WooCommerce payment gateway fees be negotiated with providers?

Yes, high-volume merchants processing £100,000+ monthly can often negotiate custom pricing with Stripe, PayPal, and other providers. Typical negotiated rates for established businesses range from 1.0-1.4% plus fixed fees, compared to standard published rates of 1.5-2.9%. Negotiation requires demonstrating consistent monthly volumes, low chargeback rates, and business stability. Contact gateway sales teams directly to discuss volume-based pricing once your processing volumes justify custom rate structures.