Buy now, pay later (BNPL) company Affirm is inviting consumers to join the waitlist for its Affirm Debit+, the first debit card that will enable customers to pay over time, according to a Wednesday (Oct. 27) press release. The card can be used to buy items upfront and offers customers the option to pay for purchases between $100 and $1,000 in four installments without any fees or interest, according to the Affirm Debit+ website.