BNPL provider fees of 4-8% per transaction nearly double credit card processing costs while increasing return rates

Buy Now Pay Later providers charge merchants 4-8% per transaction compared to 2.5-3.5% for credit cards, and BNPL orders have significantly higher return rates (41% vs 22% for credit cards in documented cases), yet sellers feel compelled to offer BNPL because competitors do and conversion rates increase. So what? 63% of merchants identify BNPL fees as a serious threat to profitability according to analysis of 2,500 ecommerce stores. So what? When BNPL customers return items, the merchant still pays the original transaction fee but must refund the full purchase amount, creating a net-negative transaction. So what? BNPL providers are increasing fees over time (PayPal raised BNPL fees from 3.49% to 4.99% per transaction) while also tightening approval standards, meaning merchants pay more but convert fewer customers. So what? Small merchants who adopted BNPL as a growth lever now find it eroding margins on their most price-sensitive customer segment. So what? Merchants are locked into offering BNPL because removing it causes immediate conversion drops, but continuing to offer it steadily degrades unit economics, creating a trap with no clean exit. The structural root cause is that BNPL providers captured the checkout experience as intermediaries and shift the credit risk cost to merchants through high transaction fees, while the psychological effect of deferred payment increases impulse purchases and subsequent returns, but the merchant bears the fee on both the sale and the return.