In July, British businesses using Stripe will be able to add Affirm to their online checkout.

“Checkout is no longer just a payment moment, it’s a decision moment,” said Ruth Spratt, VP and UK Country Manager at Affirm. “Consumers are increasingly seeking payment options that offer more control and clarity, and merchants are seeing the impact that can have on conversion and customer loyalty. Expanding our partnership with Stripe helps us do exactly that, bringing these benefits to more businesses across the UK.”

“Merchants want payment options that help them grow without adding friction for their customers, and Affirm delivers that. Bringing this partnership to the UK is the next step in making the right payment options accessible to businesses everywhere," said Fran Ryan, Chief Business Officer at Stripe.

The new UK partnership builds on strong momentum in the US and Canada. Stripe businesses that enabled Affirm saw revenue on eligible sessions increase by 13.9% on average. They also saw a conversion increase of 21.3% for purchases of $250 or more.

The companies are also collaborating on the future of AI-powered commerce, with a shared focus on making payments more seamless and transparent as agentic experiences evolve. Earlier this year, Affirm and Stripe announced plans to support Shared Payment Tokens to help enable secure pay-over-time experiences in AI-powered commerce environments.