United States Payments

The United States is the world’s largest card market, but also its most fragmented payment regulatory environment. Visa and Mastercard dominate card network rails; no comparable concentration exists in licensing — money transmission requires a separate licence in each of the 50 states, DC, and US territories, creating a 54-jurisdiction compliance burden that has no equivalent anywhere else. FedNow launched in July 2023 and RTP has been live since 2017, but real-time payment share remains under 5% of transaction volume. Operators entering the US should plan for significant card infrastructure dependence, complex acquiring economics, and a licensing process that is slow and expensive relative to any other major market.

Card Market — The Dominant Rail

Credit card penetration at 85% is among the world’s highest. The four-network landscape — Visa, Mastercard, American Express, Discover — means card acceptance requires routing flexibility. Interchange economics split cleanly between regulated and unregulated debit: the Durbin Amendment (2011) caps interchange for debit cards issued by banks with $10B+ in assets at $0.21 + 0.05% per transaction; smaller issuers are exempt and can charge 0.5–2.0%. Credit card MDR ranges from 1.5% for basic debit-branded products to 3.5%+ for premium rewards cards — the spread is wider than most markets.

No-surcharge rules have been legally challenged but remain contractually standard in most merchant agreements. Contactless NFC became mainstream post-COVID — tap-to-pay is now the default at most physical merchants. 3DS2 adoption is growing for card-not-present, though not federally mandated. The EMV liability shift (2015 for POS, 2020 for fuel pumps) has driven chip card deployment to near-universal for physical acceptance.

FedNow and RTP — The Real-Time Rails

The Clearing House launched RTP in November 2017; the Federal Reserve launched FedNow in July 2023. Both operate 24/7 with sub-10 second settlement. FedNow has approximately 1,700 participating financial institutions as of April 2026; RTP reaches most large banks. Neither has achieved meaningful consumer-facing traction as a standalone payment method.

Zelle — operated by Early Warning Services, owned by seven major US banks — processes $12T annually [2025] and runs over RTP rails, but functions as a bank-to-bank P2P product rather than an open merchant payment rail. ACH remains the workhorse for B2B, payroll, and recurring billing: $75T+ annually, with same-day ACH available but not instant. For operators, real-time rail access is primarily relevant for disbursement (instant pay-outs to gig workers, insurance claims, earned wage access) rather than consumer checkout.

Digital Wallets and BNPL

Apple Pay and Google Pay dominate tap-to-pay in physical retail — both are pass-through wallets with no stored float, adding a tokenisation layer on top of the underlying card. PayPal and Venmo (PayPal-owned) are stored-value wallets with significant consumer bases; PayPal One Touch is a meaningful checkout conversion driver for e-commerce. Cash App (Block) has strong penetration in underbanked and younger demographics.

BNPL — Affirm, Klarna, Afterpay (Block-owned), and Zip — is embedded at major retail and e-commerce checkouts. The model is merchant-funded: 2–6% merchant fee, 0% consumer interest for on-time payments. BNPL regulation is developing under CFPB oversight; the CFPB’s 2024 interpretive rule classifying BNPL as credit cards is under legal challenge but signals the direction. Operators offering BNPL should engage compliance counsel on the current status.

Crypto and Digital Assets

The GENIUS Act, signed July 18, 2025, established the first federal framework for payment stablecoins in the US, requiring reserve holdings in safe assets including US Treasuries and cash equivalents. The SEC followed in April 2025 with a statement confirming that dollar-backed stablecoins designed for 1:1 parity are not securities, and the CFTC in December 2025 authorized BTC, ETH, and USDC as derivatives margin collateral. Stablecoins processed USD 28T in real economic volume globally in 2025, with retail crypto transaction growth of 125% year-over-year (TRM Labs). The US is the largest stablecoin market by volume.

For operators, the immediate commercial opportunity is in B2B settlement and treasury flows. Stripe, Coinbase Commerce, Visa, Mastercard, PayPal, Fiserv, and Western Union have all integrated or announced stablecoin rails in 2025 — USDC-settled merchant payments are a live product category, not a roadmap item. Consumer crypto checkout remains a niche option with limited conversion impact; the structural opportunity is in cross-border payment settlement and treasury operations where stablecoin rails reduce correspondent banking friction and settlement latency.

Regulatory Environment

There is no federal payment institution licence for non-bank operators. The primary requirement is state-by-state Money Transmitter Licences (MTLs) — 54 jurisdictions, each with different capital minimums ($25K–$7M+), application fees, bonding requirements, and processing timelines of 3–18 months per state. Full 50-state coverage takes 12–24 months and costs $2–5M in licensing fees, legal, and capital. FinCEN MSB (Money Services Business) registration is required federally but is not a licence — it does not substitute for state MTLs.

Payment facilitators operating under a licensed acquirer’s umbrella avoid MTL requirements but have limited product control and face acquirer-set restrictions. Banking-as-a-Service (BaaS) — fintech operating via a partner bank’s charter — is under regulatory pressure following enforcement actions against Evolve Bank & Trust, Blue Ridge Bank, and others in 2023–2024. The CFPB has oversight of large non-bank payment companies processing 5M+ transactions annually.

Fraud Landscape

Card-not-present (CNP) fraud is the largest fraud category by value — the US has notably higher CNP fraud rates than Europe, partly due to slower 3DS2 mandation. Account takeover via credential stuffing is volume-scalable and industrialised. Zelle-related authorised push payment fraud has become a political issue — Congressional pressure has led to expanded bank reimbursement commitments for scam victims, creating new liability exposure for banks and PSPs on the sending side.

First-party fraud (friendly fraud, chargeback abuse) is estimated at 40–50% of total dispute volume — particularly acute in digital goods, gaming, and subscription categories. Check fraud has resurged despite declining check usage: cheque washing and cheque alteration increased 80%+ in 2022–2023 per FinCEN data. Synthetic identity fraud — constructing fake identities using real SSN components — is sophisticated and growing, particularly for credit products.

Practical Notes for Operators

PSPs. Stripe (developer-first, comprehensive API, best-in-class documentation), Braintree/PayPal (enterprise, strong PayPal wallet conversion), Square (SME and POS-focused), Adyen (enterprise global), Checkout.com (enterprise, strong fraud tooling), Worldpay/FIS (legacy enterprise). For ACH and bank account access: Plaid for account verification, Dwolla for ACH execution — a common fintech stack.

MTL. Do not underestimate the timeline. Budget 12–24 months and $2–5M for full 50-state coverage. Use a licensing agent (Ncontracts, ComplianceSystems, or a specialist law firm) to run parallel applications. Consider launching under a payment facilitator structure first and pursuing MTLs in parallel to reach market faster.

Entity. Delaware C-Corporation is standard for venture-backed and foreign-owned operators. Foreign companies need a US entity for domestic acquiring, banking, and FinCEN MSB registration.

Tax. Sales tax on digital goods varies by state — 45 states plus DC have sales tax; rates and definitions of taxable digital goods differ. No federal digital services tax. Use Stripe Tax, Avalara, or TaxJar for automated compliance.

Currency. USD is fully convertible. No repatriation restrictions. FX risk only applies to cross-border flows.

Language. English primary. Spanish localisation is commercially meaningful — Hispanic consumers represent 18% of the US population and approximately $2.8T in purchasing power. Fully bilingual product is a competitive advantage in markets like California, Texas, and Florida.