David Beard, CEO and editor-in-chief of Lendingexpert.co.uk, said: “This is good news for customers who are responsible users of Klarna because it means they’ll be able to build their credit rating using the service, but bad news if you’ve ever used Klarna and haven’t paid what you owe them on time.

“If you’ve ever been late paying what you owe Klarna, from June, your credit score may be negatively impacted, meaning you might find it more difficult to be approved for financial products in the future, including for things like mobile phone contracts, credit cards, loans and mortgages.”