FinTech companies OnePay and Klarna have announced the next phase of the partnership they formed in 2025.

After nearly a year of collaborating on a financial product that provides Walmart customers with installment loans, OnePay is going even further by rolling out Klarna-powered Buy Now, Pay Later (BNPL) options for all recent purchases.

Using a new OnePay feature called Swipe to Finance, people using OnePay Cash - a digital banking account backed by Walmart - will be able to spread out the payments on previously purchased items over a fixed time period.

The feature is based on infrastructure developed by Klarna and will launch inside the OnePay mobile app over the next few months, though neither company has provided an exact launch date.

Thomas Hoare, chief commercial officer at OnePay, says the US-based FinTech firm is rolling out this feature because it recognises that “not every purchase comes at the right time”.

With the cost of living spiralling and consumers feeling the pinch after Christmas, Hoare explained that the firm is trying to provide its customers with “financial flexibility”.

This flexibility comes in the form of “new ways for them to pay over time and do it simply, transparently, and all in the OnePay app”, he added.

Critics argue, though, that flexible payment options are only a slippery slope into debt. Still, many consumers continue to use such services.

It’s estimated that half of Americans have made purchases using a BNPL scheme, with 25 per cent of payments used for groceries, according to Lending Tree. Worryingly, 41 per cent of these users made late payments.

The flexible payment offering launched by OnePay and Klarna last year, called OnePay Later, enables people to loan money to pay for Walmart-purchased items ranging from homeware and jewellery to toys and sports equipment. It doesn’t cover groceries, though.

Now having collaborated on two products, OnePay and Klarna plan to continue their partnership with “additional products and features” set to launch towards the end of 2026. They’ll be aimed at helping OnePay increase itsBNPL offering to “reach new customers”.

David Sykes, chief commercial officer at Klarna, said: "Post-purchase payments are becoming a core part of how people manage money. With Swipe to Finance powered by Klarna, we're giving customers a simple, transparent way to take control of payments after the fact, directly in the OnePay app. It's another step in expanding smarter payment options and meeting consumers wherever they choose to pay."

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