A restaurant chain processing €12M annually pays €156K in card processing fees and accepts it as cost of doing business. This full episode breaks down where that €156K actually goes - line by line - and why the same €12M can move bank-to-bank for under €30K.

The card payment stack and what each layer takes:

Interchange (€0.20-0.30 on €100, regulated in Europe to 0.2-0.3% by IFR; uncapped 1.5-3% in the US). Stated purpose: fraud risk and cardholder benefits. Reality: actual fraud losses are 0.05-0.15%; the rest is profit. Card network assessment (€0.10-0.15) for routing infrastructure that's been depreciated since the 1980s and charges 3-5x what SEPA bank-to-bank routing costs. Gateway and processor fees (€0.30-0.75) for APIs and fraud tools that, by modern fintech standards, are priced 3-30x above comparable infrastructure. Acquirer markup (€0.10-0.50) for credit risk that mostly gets passed back to the merchant anyway.

Total: €0.80-2.50 for a €100 card transaction. The actual cost of moving the money: €0.02-0.05 via SEPA Instant. The 16-125x multiplier is structural, not technical.

The A2A stack: one intermediary, no PCI compliance, no acquirer credit-risk premium, no gateway, no 2-3 day settlement delay. €0.50 per €100, flat.

Four merchant scenarios with the math:

Independent coffee shop on €180K volume at 2.2% SMB rates: €918 saved annually at 30% A2A adoption. Mid-size e-commerce on €8M volume: €33K saved at 25% adoption, 66-day payback. Subscription SaaS on €45M ARR: €598K saved at 40% adoption - and the bigger story is the €405K of involuntary churn that A2A prevents because bank accounts don't expire. Restaurant chain on €6.5M volume: €23K saved plus instant settlement freeing up daily revenue for operations.

Then the institutional view: a regional bank with 800 SMB merchants on €500M volume faces a €1.44M annual hole if 10% of merchants leave for an A2A-enabled competitor. Defensive A2A pricing at 0.6% beats losing the relationships.

The 10-year trajectory: card fees compress 20-40% under A2A pressure but don't reach A2A levels because the cost gap is structural, not negotiable. New equilibrium settles around 35-50% domestic A2A share by 2030.

For payment-institution executives, large merchants reviewing payment costs, and anyone tired of "that's just how processing fees work" as an answer.

Full source material and the complete breakdown: https://go.payware.eu/p-economics-f

Produced by payware - the transaction resolution network for instant A2A payments.

AI-generated from payware's published research and documentation.