
Payment Integration Cost Breakdown: 2026
Cost analysis Payment Integration Cost Breakdown: 2026 A complete payment-integration cost breakdown comparing Stripe, PayPal, Bolt, and Shop Pay across 47 DTC merchants. Flat-fee models save merchants 18% on average — see the data. March 2026 11 min read 18% Average processing-cost savings for merchants on flat-fee pricing vs. percentage-based models — rising to 39% at the $50M GMV tier.Source: Krepling research team — analysis of 47 DTC merchants ($500K–$50M GMV), Oct 2025–Mar 2026 On this page Total cost of ownership Setup & implementation Transaction fee components Monthly & subscription fees Hidden fees Real-world scenarios Share On this page Total cost of ownership Setup & implementation Transaction fee components Monthly & subscription fees Hidden fees Real-world scenarios Between October 2025 and March 2026, our research team conducted a comprehensive









