Stripe vs Adyen UK 2026: Fees, Features & Which to Choose

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Stripe and Adyen are two of the most widely used payment processors in the UK, but they are built for very different businesses. Stripe charges 1.5% plus 20p per transaction for UK cards and suits developers, startups, and online-first businesses that want quick setup and flexible APIs. Adyen uses interchange-plus pricing with a processing fee starting from €0.11 per transaction on top of interchange and scheme fees, targets high-volume merchants and enterprise retailers needing a single platform across online, in-store, and app payments. This comparison covers fees, features, contract terms, and the specific situations where one provider clearly outperforms the other.

Stripe vs Adyen: Fee Comparison

What is Stripe?

Stripe is a US-founded payment processor, launched in 2010, that has become the default choice for UK developers and online businesses. It offers a pay-as-you-go model with no setup fee, no monthly fee, and no minimum volume requirement. You can go from signing up to taking your first card payment in under an hour using its pre-built checkout or API. UK businesses pay 1.5% plus 20p for standard UK Visa and Mastercard transactions, rising to 2.5% plus 20p for European cards and higher for American Express.

Stripe handles far more than card payments. Its product suite includes Stripe Radar for fraud detection, Stripe Terminal for in-person card readers, Stripe Connect for marketplace payouts, and Stripe Billing for subscriptions. The platform supports over 135 currencies and accepts payment methods including Apple Pay, Google Pay, BACS Direct Debit, and buy now pay later options. For a full breakdown of its pricing and products, read the Compare Card Fees Stripe review.

What is Adyen?

Adyen is a Dutch payment technology company founded in 2006 and listed on Euronext Amsterdam. It holds a banking licence from De Nederlandsche Bank and is FCA-authorised in the UK. Unlike Stripe, Adyen does not target small businesses. Its minimum monthly invoice of €120 and its sales process, which involves direct conversations with its team rather than self-serve sign-up, signal clearly that the platform is built for businesses processing at least £1 million per year. Clients include ASOS, Ted Baker, and McDonald's.

Adyen's core advantage is its unified commerce architecture. One integration connects in-store terminals, ecommerce checkouts, and in-app payments to a single dashboard with unified reporting and a single reconciliation feed. Its interchange-plus pricing means you pay the actual interbank cost plus a small fixed processing fee, which becomes significantly cheaper than Stripe's blended rates at high volumes. For a detailed look at its products and pricing, see the Compare Card Fees Adyen review.

Stripe vs Adyen: Features Compared

Payment Methods

Both providers cover the core payment methods UK businesses need. Stripe accepts Visa, Mastercard, American Express, Apple Pay, Google Pay, BACS Direct Debit, Klarna, Clearpay, and over 40 local payment methods globally. Adyen matches this and adds its own local payment method connections, including iDEAL, Alipay, WeChat Pay, and SEPA Direct Debit, all managed through a single API. For merchants selling internationally, Adyen's breadth of local payment method support is marginally wider and more deeply integrated.

Hardware and Terminals

Stripe sells its own card reader, the Stripe Reader S700, priced at £279 plus VAT, and the simpler BBPOS WisePOS E at £179 plus VAT. Both work through Stripe Terminal and connect to your existing Stripe account. Adyen manufactures its own range of terminals under the Adyen Terminal brand, including the AMS1, countertop, and mobile devices. Adyen terminals feed directly into the same unified dashboard as your online transactions. Neither provider charges ongoing terminal rental in the same way traditional acquirers do, though Adyen terminal pricing is negotiated directly rather than listed publicly.

Developer Integrations

Stripe has one of the most respected developer experiences in the payments industry. Its documentation is detailed and clear, its client libraries cover nine languages, and it integrates natively with Shopify, WooCommerce, Magento, Xero, and hundreds of other platforms. Adyen also offers strong API documentation and pre-built plugins for Salesforce Commerce Cloud, SAP, and Magento, but its integrations are heavier and typically require dedicated developer resource to implement correctly. A solo developer or small team will generally find Stripe quicker and easier to work with.

International Support

Stripe is available in 46 countries and supports 135 currencies. Adyen operates in more than 30 countries but processes in over 150 currencies and holds direct acquiring licences in major markets including the UK, US, EU, Australia, and Singapore. Direct acquiring means Adyen processes your transactions itself rather than routing through a third-party acquirer, which reduces processing costs and improves authorisation rates. For businesses with genuinely global transaction volumes, Adyen's direct acquiring model produces measurably higher approval rates in key markets.

Fraud Tools

Stripe Radar uses machine learning trained on data from millions of businesses to score each transaction for fraud risk. The basic version is included in your transaction fee. Radar for Fraud Teams, which adds custom rules and deeper controls, costs an additional 2p per screened transaction. Adyen's RevenueProtect is its fraud management tool, and it is built into the platform rather than sold as an add-on. RevenueProtect includes risk scoring, 3D Secure 2 management, and custom rules. Both tools are genuinely capable, but Adyen's tighter integration with its acquiring data gives it a marginal edge for high-volume merchants trying to reduce false declines as well as fraud.

Customer Support

This is an area where both providers draw fair criticism. Stripe's standard support is email and chat-based. Phone support is only available on higher-tier plans. Small businesses regularly report slow response times during disputes or account reviews. Adyen assigns a dedicated account manager to clients, but reaching that person quickly during an issue is not always straightforward. Neither provider matches the telephone accessibility of traditional UK acquirers such as Worldpay or Barclaycard. If guaranteed phone support matters to your business, factor that into your decision.

Pros and Cons

Stripe Pros and Cons

Pros

• No monthly fee and no minimum volume, making it accessible for businesses of any size
• Fast, self-serve sign-up. You can start taking payments the same day.
• Excellent developer documentation and pre-built integrations with major ecommerce platforms
• Wide range of additional products including Billing, Connect, and Radar under one account
• Transparent, publicly listed pricing with no hidden fees on the standard plan

Cons

• Blended pricing of 1.5% + 20p per UK transaction becomes expensive above £500,000 annual volume compared to interchange-plus alternatives
• Customer support relies heavily on email and chat. Phone support requires a paid plan.
• Account holds and sudden fund freezes are a reported risk, particularly for new or high-risk businesses, and resolving them can take days
• In-person hardware is more limited than specialist EPOS or terminal providers

Adyen Pros and Cons

Pros

• Interchange-plus pricing delivers lower effective rates at high volumes, typically saving merchants thousands of pounds per month above £1 million annual turnover
• Unified single platform for in-store, online, and in-app payments with one reconciliation feed
• Direct acquiring licences in key markets improve authorisation rates measurably
• Dedicated account management for all clients, providing a named contact
• Owns the full payment stack from acquiring to gateway, reducing the number of third parties involved

Cons

• The €120 monthly minimum invoice makes Adyen uneconomical for businesses processing under roughly £500,000 per year
• No self-serve sign-up. Onboarding requires a sales conversation and can take several weeks.
• Pricing is not publicly listed for most products. You must request a quote, making upfront cost comparison difficult.
• Overkill for straightforward online-only businesses that do not need unified commerce features

Which is Better For...?

Small and Medium UK Online Businesses

Stripe is the clearer choice for most UK SMEs selling online. There is no monthly fee, no contract, and setup takes minutes. At £10,000 monthly card volume, Stripe's blended rate of 1.5% + 20p costs approximately £170 in transaction fees. Adyen's €120 minimum monthly invoice alone would exceed the processing cost for many small businesses. Unless you are already approaching £500,000 annual volume, Adyen is not a practical option.

High-Volume Omnichannel Retailers

Adyen wins here. A business processing £5 million per year through a mix of in-store and online channels will pay significantly less in effective transaction fees with Adyen's interchange-plus model compared to Stripe's blended rate. The unified commerce platform also eliminates the reconciliation headache of managing separate providers for online and physical payments. Large UK retailers consistently choose Adyen for this reason.

Developers and Startups Building Payment Products

Stripe is the industry standard for this use case. Its API documentation, sandbox environment, webhook system, and Connect product for marketplace payouts are all designed specifically for developers building complex payment flows. A startup building a marketplace, SaaS platform, or on-demand service will find Stripe's tooling faster to implement and better documented than Adyen's equivalent. Adyen does offer a marketplace product, but it is oriented towards larger platforms with enterprise-level transaction volumes.

International Enterprise Merchants

Adyen has a structural advantage for businesses selling across multiple countries at scale. Its direct acquiring licences, broad local payment method coverage, and single global contract simplify international expansion considerably. A UK retailer expanding into Germany, Australia, and the US simultaneously would benefit from Adyen's single integration and unified reporting across all markets. Stripe supports international sales well, but managing multiple currencies and local payment methods at enterprise scale involves more configuration work.

Our Verdict

Stripe is the right choice for the majority of UK businesses. It has no barriers to entry, clear public pricing, and a product range that scales well from a new online store to a growing SaaS business. The 1.5% + 20p rate for UK cards is not the cheapest available, but the absence of monthly fees and contracts means your total cost stays proportional to your revenue. For businesses processing under £500,000 per year, Stripe is almost always the more cost-effective option.

Adyen becomes the better choice above a certain volume threshold, typically around £1 million to £2 million in annual card turnover, and particularly where you need unified in-store and online processing. The interchange-plus pricing model, direct acquiring, and single platform architecture deliver genuine savings and operational benefits at that scale. If you are a growing UK retailer running both a physical shop and an ecommerce site, Adyen is worth a serious look once your volume justifies the minimum monthly fee.

If you are unsure which provider suits your business or want to see quotes from multiple processors side by side, Compare Card Fees is a free, independent advisory service that has helped UK businesses find better card payment deals since 2012. Use the Compare Card Fees comparison tool to get tailored quotes based on your actual transaction volume and business type.