Payment scheme fees are charged by card networks (Visa, Mastercard) for network infrastructure and services, while interchange fees are paid by acquiring banks to issuing banks for each transaction. Scheme fees typically range 0.10-0.15%, while interchange fees range 1.5-3.5% depending on card type and merchant category.
Why It Matters
Understanding fee separation drives cost optimization strategies for payment processors handling $50M+ monthly volume. Scheme fees increase 3-5% annually and apply to all transactions uniformly, while interchange rates vary by 200-300% across card types. Misallocating these costs in merchant pricing models can erode margins by 15-25 basis points on high-volume portfolios.
How It Works in Practice
- 1Calculate scheme fees by multiplying transaction volume by network-specific rates (0.10-0.15% for most card types)
- 2Determine interchange fees using card-specific rates published quarterly by networks, ranging from 0.05% for government cards to 3.25% for premium rewards cards
- 3Apply assessment fees separately for network services like fraud monitoring and dispute processing
- 4Reconcile monthly statements to verify correct fee application across transaction types and merchant categories
Common Pitfalls
Confusing Durbin Amendment regulated debit interchange (0.21% + $0.01) with unregulated credit card interchange rates
Missing quarterly rate updates from networks, leading to incorrect merchant cost calculations
Failing to pass through scheme fee increases to merchants, absorbing 3-5% annual cost inflation
Key Metrics
| Metric | Target | Formula |
|---|---|---|
| Blended Interchange Rate | 1.8-2.2% | Total interchange fees divided by total transaction volume |
| Scheme Fee Ratio | 0.10-0.15% | Total assessment and network fees divided by transaction count |