The global merchant acquiring market generated $87B in net revenue in 2023, growing at 6% CAGR through 2028 (~$116B) (McKinsey Global Payments Report 2024), across $35B in the US (UBS, US Merchant Acquiring Market Framework, 2024), ~$17.5B in Europe (Popular Fintech, European Merchant Acquiring Landscape), and ~$35B across APAC, LatAm, and Africa (FIS Worldpay Global Payments Report 2024). TPV underlying this figure totals $24.5T across Visa ($13.2T, Visa Annual Report FY2024), Mastercard ($9.8T, Mastercard Q4 2024 Earnings), and Amex ($1.55T, Amex FY2024).

SMBs, merchants below $50M in annual revenue, represent 65–70% of that acquiring net revenue (UBS 2024 ; Popular Fintech, citing UBS/McKinsey/Nilson), putting the SMB-specific acquiring pool at $56–61B globally.

Cross-border is where this SMB pool is most underserved and fastest-growing. Global cross-border e-commerce is projected to reach $3.37T by 2028 (Discover Global Network, 2025), with SMBs representing the dominant share (~70% of that volume). This puts Inflowpay's serviceable market at $8–10B in annual net revenue, roughly 15% of the global SMB acquiring pool, and the precise segment that every incumbent has either refused to underwrite or priced out of reach.

It is also worth noting that this entire analysis is scoped to card rails only, which is deliberately conservative. Local real-time payment networks, UPI, Pix, and equivalent rails across non-Western markets, represent an additional $8–25B in net revenue that is entirely excluded from the figures above. Inflowpay's stablecoin-native architecture is purpose-built to capture this layer: every local payment flow routes through the same settlement stack, converting local currency to stablecoin on-chain before settling to the merchant, with no additional integration required. As these rails mature and cross-border SMB adoption accelerates, this represents a natural expansion of our addressable market without any change to our core infrastructure. Sources: UPI, Pix, PromptPay, DuitNow QR, QRIS.