ByPYMNTS|August 13, 2026|Airwallexis addingAffirm’s installment payment options to its checkout platform, giving merchants in 35 countries a way to offer pay-over-time financing to eligible customers in the United States. 13), merchants using Airwallex can make Affirm available at checkout without completing a separate integration. shoppers who qualify can choose among payment options that include four interest-free installments or monthly payments spread over as many as 24 months, according to the companies. Affirm says it does not charge late or hidden fees and displays the payment terms to shoppers before they complete a purchase. The arrangement comes as payment providers compete to give merchants more ways to accommodate consumers who want to spread out the cost of purchases.