North America · GDP rank #1
US · USD @ 1.0000/USD
The world's largest card market remains stubbornly fragmented on rails: FedNow, RTP, Zelle and Nacha ACH compete where most peers run a single national instant scheme. Interchange revenue underwrites a rewards arms race that is now at structural risk from the 2024 CFPB §1033 open-banking rule and the GENIUS Act stablecoin framework, which entered OCC and Treasury rule-making during early 2026.
Tab 04
The macro backdrop that actually bends payment behaviour. Nominal GDP, real growth, CPI, policy rate, and FX volatility set the backdrop; interchange, MDR, FX regime, and capital-control posture set the industry-specific dynamics.
Nominal GDP
USD · 2025
Population
people · 2025
Adults with a bank account
% · 2023
Smartphone penetration
% of adults · 2024
Interchange caps
Interchange is the per-transaction fee an acquirer pays an issuer — the floor underneath every MDR merchants see. Domestic caps (where they exist) shape the market far more than individual network schedules.
Regulator · Federal Reserve (debit) / unregulated (credit)
The Credit Card Competition Act (Durbin-Marshall, reintroduced 2024) would require the two largest issuers to enable at least one non-Visa/Mastercard routing option on credit. It has not passed but remains live legislation.
Credit interchange (domestic)
% · 2024
US credit interchange is unregulated by statute; rates are set by networks. The range reflects Visa/Mastercard published schedules across transaction types.
Debit interchange (domestic)
% + $ per txn · Effective 2011; Fed 2023 proposal under court challenge
Applies to issuers with >US$10B in assets. The Fed's proposal to lower the cap to 0.04% + US$0.144 remains in litigation.
Merchant discount rate
The MDR is the fully-loaded cost of card acceptance to the merchant — interchange, scheme fees, and acquirer margin. Small-merchant pricing is routinely 2-3x the large-merchant average.
2.4–3.5% on credit for small merchants; fixed-plus-percentage blended pricing is common via Square, Stripe and Toast.
Avg. credit MDR (large merchant)
% · 2024
Avg. debit MDR
% · 2024
Active regulation
Effective · 2026-04-01 (tier 1; staggered to 2030)
Mandatory machine-readable consumer financial data access at the largest banks. The first US statutory open-banking framework. Under legal challenge by the Bank Policy Institute.
Source · CFPB
Effective · 2025-07-18
First federal stablecoin framework. OCC issued notice of proposed rulemaking in Q1 2026; Treasury, FinCEN and OFAC issued joint proposed rules on illicit-finance provisions in spring 2026.
Source · US Congress
Durbin-Marshall bill to require non-V/MC routing on credit for the two largest issuers. Live legislation in the 119th Congress; strong retail-merchant support, strong bank opposition.
Source · Congress