Payment fees matter more than you think

Original Article ↗ Hacker News Discussion ↗

Credit card processing fees of 2–4% – and sometimes far higher for small merchants – can quietly consume a large share of profits in low-margin businesses like restaurants and retail. Commenters contrast these costs and opaque fee structures with government-backed or bank-based instant payment systems (such as UPI in India, SEPA Instant in the EU, PIX in Brazil, and WeChat Pay in China) that move money cheaply or for free, but often lack the same chargeback and fraud protections. The exchange highlights a broader tension between convenience and protections offered by card networks, the hidden cross-subsidies behind rewards programs, and growing interest in cheaper, real-time alternatives.

Card fees and merchant impact

  • Reported card processing costs range widely: ~1.5–3.5% typical in the US, but some small merchants see effective rates as high as 11% depending on processor and card mix.
  • Flat-per-transaction components (e.g. $0.30) make fees especially punishing for small-ticket items (e.g. ~$5 purchases).
  • For low-margin sectors like restaurants (~9–10% net margin), ~3% in card fees can consume around a third of profit.
  • Some argue that any merchant who “can’t afford 3%” is failing anyway; others counter that, especially for small business, fees are material and opaque.

Rewards, interchange, and who captures value

  • Debate over whether card issuers profit more from interchange or interest: some say rewards-heavy cards are cross‑subsidized by borrowers; others note interchange is a large revenue line.
  • One cited analysis claims ~86% of interchange funds rewards programs, implying card users with rewards recover a significant portion of fees, often at the expense of non‑rewards users and merchants.

Regional alternatives and instant payments

  • EU: instant, free SEPA exists; EPC QR codes plus “SEPA INST” can yield near‑free payments, but lack incentives/marketing and chargeback-like protections.
  • India: UPI enables instant, free account‑to‑account transfers via QR/ID/phone; strong device/SIM binding, limits, and standardized SDKs are described. RuPay exists but is weak for international use.
  • Other examples: Brazil Pix, Russia’s FPS, Argentina’s and Pakistan’s instant systems, WeChat Pay/Alipay (no fees within the wallet, monetized via float), and private apps like Revolut.
  • FedNow in the US is seen as under‑adopted and missing consumer‑facing UX.

Fraud protection, chargebacks, and security

  • One side views card fraud protection and chargebacks as the core consumer value justifying fees; others claim this is overstated “propaganda” and could be provided more cheaply.
  • Disagreement on how much real investigation happens and what it costs.
  • QR-based systems prompt security concerns (phishing, fake QR codes), with counter‑arguments that app‑based scanning, attestation, limits, and dispute processes mitigate risk.

Surcharges, cash, and regulation

  • Growing use of card surcharges or cash discounts, especially among small merchants, in places where network rules or laws now permit it.
  • In some regions (EU) interchange caps are low (~0.2–0.3%), making cards potentially cheaper than handling cash; in the US, much higher fees and past bans on surcharging are portrayed as monopolistic.
  • Cultural factors matter: e.g., strong preference for anonymous cash in parts of Europe, versus convenience and rewards in North America.