Stripe Connect, Adyen, PayPal Enterprise, Checkout.com, and Worldpay all claim to be built for scale — but their pricing architecture, not their marketing copy, is what decides your true cost of accepting six- and seven-figure B2B payments.
High-ticket B2B transactions behave nothing like consumer checkout. A single invoice can be worth what a hundred retail orders bring in combined, which means a processor's percentage-based fee, dispute policy, and settlement speed all carry outsized financial weight. This guide breaks down the five gateways enterprise finance teams evaluate most often in 2026 — how their pricing models actually work, where each one wins, and what the published rate sheets don't tell you.
Most payment gateway comparisons are written for e-commerce checkout flows: low average order values, high transaction counts, and card-present or card-not-present retail traffic. High-ticket B2B payments flip that model. A single wire, ACH transfer, or card-on-file invoice might represent $10,000, $100,000, or more — and at that scale, the difference between a flat blended rate and an interchange-plus rate can swing the annual processing bill by six figures.
Three variables matter more for B2B buyers than for typical e-commerce merchants:
Stripe Connect uses pay-as-you-go pricing that flexes depending on which capabilities a platform needs, offering a choice between letting Stripe set and collect processing fees from connected accounts, or having the platform control its own pricing strategy and collect fees itself. On the underlying payments side, Stripe's standard US rate is 2.9% plus 30 cents per successful online card payment, with international cards adding 1.5% and currency conversion adding another 1%.
For B2B specifically, the more relevant rail is often bank transfer rather than card. ACH Direct Debit is priced at 0.8%, capped at $5 per transaction, which makes it cheaper than card processing on any invoice above roughly $670 — a meaningful detail for platforms invoicing enterprise buyers. At real enterprise scale, published pricing understates what's negotiable: a company processing $100 million annually on flat-rate pricing pays roughly $2.9 million in fees, while negotiated interchange-plus pricing at that volume can bring the same activity down to $1.8–2.1 million.
Adyen uses Interchange++ pricing, meaning merchants pay the exact interchange fee set by card networks — typically 1.5% to 3% — plus card scheme fees of roughly 0.08% to 0.13%, plus Adyen's own processing markup, which is usually a minimum of 0.60%. Unlike blended-rate processors, this itemized structure is transparent by design, but it also means the final cost varies transaction by transaction.
Adyen is explicitly built for scale rather than accessibility. The platform typically imposes a minimum monthly invoice amount around €1,000 or more, and merchants who don't reach that threshold still pay the difference. Qualifying generally requires at least $1 million in annual card volume along with the technical resources to implement Adyen's API, and the processing markup itself is negotiable, with businesses processing $1 million or more per month having negotiated rates as low as 0.30% to 0.45%.
Braintree — now operating as PayPal Enterprise Payments — was founded in 2007 and acquired by PayPal in 2013 for $800 million, and it remains one of the most developer-friendly options for B2B billing infrastructure. Standard card transactions are priced at 2.9% plus 30 cents in the US, while PayPal transactions processed through Braintree cost 3.49% plus 49 cents, and Venmo costs 3.5% plus 49 cents.
For high-ticket invoicing, the ACH option is the standout feature. ACH Direct Debit is priced at 0.75%, capped at $5 per transaction, which means a $10,000 ACH payment costs just $5 rather than the $75 that uncapped percentage pricing would produce. Custom flat rates, interchange-plus pricing, and discounted rates are available for established businesses based on their model and processing volume, and enterprise merchants can typically negotiate below list price with sufficient volume.
Checkout.com is focused on digital merchants and has explicitly stated it will not offer physical POS terminals, positioning itself firmly as an enterprise-grade digital and B2B processor rather than an omnichannel platform. It offers a modular payments platform spanning acquiring, gateway, fraud tools, and analytics, with a strong emphasis on performance data and international payment coverage, appealing to organizations that want granular control over authorization rates and payment routing.
Pricing transparency is the tradeoff for that flexibility. Pricing with Checkout.com is typically quote-based and custom for each merchant, which allows flexibility at scale but makes cost comparison harder for smaller sellers. Enterprise pricing generally requires direct negotiation, making early-stage evaluation more difficult than with published rate-card competitors.
Worldpay is now part of Global Payments following an acquisition completed in 2025, creating a combined processing footprint of $3.7 trillion across six million merchant locations. That scale gives Worldpay one of the broadest acquiring and acceptance networks of any processor on this list, spanning both digital and physical channels.
Worldpay supports transactions in 120+ currencies and hundreds of local payment methods, and typically combines gateway, processing, and acquiring services for large merchants requiring wide geographic reach and multi-region compliance. Its infrastructure is built to ensure maximum uptime and reliability for businesses that need to streamline payment processes at enterprise scale. As with Checkout.com, pricing and contracts are often bespoke, which provides flexibility across regions but means costs vary widely from one merchant to the next.
| Gateway | Pricing Model | Standard Card Rate | High-Ticket B2B Fit |
|---|---|---|---|
| Stripe Connect | Flat-rate / negotiable at scale | 2.9% + $0.30 | ACH capped at $5/txn |
| Adyen | Interchange++ (itemized) | Interchange + ~0.6% markup | Negotiable above $1M/mo |
| PayPal Enterprise (Braintree) | Flat-rate / negotiable | 2.9% + $0.30 | ACH capped at $5/txn |
| Checkout.com | Custom quote-based | Not publicly disclosed | Strong for scaled digital B2B |
| Worldpay (Global Payments) | Bespoke contract pricing | Not publicly disclosed | Best for omnichannel enterprise |
Because ACH pricing is typically capped rather than purely percentage-based, it scales far better on large invoices. A capped $5 fee on a $10,000+ ACH transfer is dramatically cheaper than the equivalent 2.9% card fee, which is why most B2B-focused gateways push large invoices toward bank transfer rails.
Not automatically. Interchange++ tends to be cheaper for merchants with a favorable, predictable card mix and enough volume to negotiate the processor's markup down. For unpredictable or high-risk card mixes, the itemized costs can be harder to forecast than a simple blended rate.
Yes, though coverage depth varies. Adyen and Worldpay generally offer the broadest local payment method and currency support for global buyers, while Stripe Connect and Braintree are strongest in developer flexibility with solid but slightly narrower international acquiring footprints.
As a general rule, negotiated interchange-plus or custom enterprise pricing starts becoming meaningfully cheaper than flat-rate pricing somewhere in the high six or low seven figures of annual processing volume — below that, the negotiation overhead often isn't worth the marginal savings.
Model your actual transaction mix against each provider's fee structure before signing a multi-year processing agreement.
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