Interchange fees are the largest component of your payment processing cost and they vary dramatically by card type, merchant category, and transaction method. Understanding interchange is essential if you’re on interchange-plus pricing or considering switching from flat-rate. This guide breaks down how interchange is set, how to estimate your fees, and why the same card costs different amounts depending on how you accept it.
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1. What Is Interchange?
Interchange is a fee paid by the merchant’s bank (acquirer) to the cardholder’s bank (issuer) on every card transaction. It’s set by Visa, Mastercard, and other card networks, not by your payment processor and it varies by hundreds of categories depending on card type, industry, and transaction method.
Your processor doesn’t keep interchange. On interchange-plus pricing, they pass it through to you at cost and charge their separate markup. On flat-rate pricing, they bundle interchange into their quoted rate and keep the margin on lower-cost transactions.
2. Interchange Fee Schedule by Card Type
These are representative Visa interchange rates (US, card-not-present/e-commerce). Actual rates vary by MCC and are updated by the card networks periodically.
| Card Type | Interchange Rate | Per-Transaction Fee | Who Typically Uses It |
|---|---|---|---|
| Visa Debit (regulated) | 0.05% | $0.22 | Debit cards from large banks (over $10B assets) |
| Visa Debit (unregulated) | 0.80% | $0.15 | Debit cards from small banks/credit unions |
| Visa Credit — CPS/E-Commerce | 1.80% | $0.10 | Standard Visa credit, online transaction |
| Visa Rewards 1 | 1.95% | $0.10 | Standard rewards card |
| Visa Rewards 2 | 2.30% | $0.10 | Mid-tier rewards cards |
| Visa Signature Preferred | 2.70% | $0.10 | Premium Visa Signature rewards cards |
| Visa Infinite | 2.40% | $0.10 | Top-tier Visa Infinite cards |
| Visa Corporate | 2.65% | $0.10 | Business/corporate purchasing cards |
| Card Type | Interchange Rate | Per-Transaction Fee |
|---|---|---|
| Mastercard Consumer Credit (e-commerce) | 1.89% | $0.10 |
| Mastercard World (e-commerce) | 2.00% | $0.10 |
| Mastercard World Elite (e-commerce) | 2.50% | $0.10 |
| Mastercard Debit (regulated) | 0.05% | $0.21 |
| Mastercard Debit (unregulated) | 1.05% | $0.15 |
3. Estimating Your Average Interchange Cost by Card Mix
Your average interchange rate depends entirely on your card mix. Use this table to estimate your likely average interchange cost:
| Card Mix Profile | Avg. Interchange | On $10,000 volume |
|---|---|---|
| 70% debit, 30% standard credit | ~0.85% | $95 |
| 50% debit, 50% standard credit | ~1.25% | $145 |
| 30% debit, 50% standard, 20% rewards | ~1.60% | $175 |
| 100% premium rewards credit | ~2.40% | $255 |
| Mix with corporate/business cards | ~2.00% | $215 |
This is the cost your processor absorbs on your behalf under flat-rate pricing, and passes through under interchange++.
4. Factors That Affect Interchange Rates
Transaction Environment
- Card-present (in-person swipe/dip/tap) — lower interchange due to lower fraud risk
- Card-not-present (online/e-commerce) — higher interchange; issuers take more risk
- Card-present keyed — higher than card-present swipe; manually keyed transactions carry more fraud risk
Card Category
- Regulated debit (large bank-issued) is the cheapest — 0.05% + $0.22
- Standard credit is mid-range (~1.5–2.0% online)
- Premium rewards and business cards are most expensive (2.0–3.0%)
Merchant Category Code (MCC)
Your MCC can affect interchange rates. Some categories have special interchange rates, supermarkets, utilities, airlines, and healthcare all have custom interchange tiers. E-commerce MCCs generally use standard rates.
Authentication Method
3D Secure-authenticated transactions can qualify for lower interchange in some categories (the liability shift also affects rates). Network tokenized transactions through Apple Pay and Google Pay also benefit from slightly lower interchange in some categories.
5. Assessment Fees: The Other Non-Interchange Network Cost
Beyond interchange, Visa and Mastercard charge their own assessment fees. These are separate from interchange and from your processor’s markup:
| Fee | Rate | Notes |
|---|---|---|
| Visa Credit Assessment | 0.14% | On all Visa credit transactions |
| Visa Debit Assessment | 0.13% | On all Visa debit transactions |
| Mastercard Assessment (<$1k txn) | 0.1375% | Standard assessment |
| Mastercard Assessment (>$1k txn) | 0.1475% | Additional 0.01% over $1,000 |
| Visa Cross-Border Fee | 0.40% | International cardholder transactions |
| Mastercard Cross-Border Fee | 0.60% | International cardholder transactions |
| Visa FANF (Fixed Acquirer Network Fee) | Tiered | Based on merchant volume; typically $2–$15/month |
For context on your total processing costs, see Credit Card Fee Calculator: What You’re Really Paying. For how interchange-plus pricing compares to flat-rate in practice, see Interchange Plus Pricing: Why Transparent Processing Saves You Money.
Understanding interchange is useful whichever model you’re on — it’s what tells you whether your effective rate is reasonable. ConvesioPay charges a flat 2.9% + $0.30 with no monthly fee, no PCI fee and no batch fee, so the interchange variation above is ours to absorb, not yours to reconcile. Get started →