TL;DR — Quick Summary
- Interchange Plus pricing saves high-volume merchants 0.15%–0.40% on their effective card processing rate compared to Tiered pricing, based on actual interchange cost pass-through.
- Tiered pricing is simpler to understand and can be more profitable for the ISO, but often costs merchants more — especially those processing a mix of consumer and premium cards.
- ISOs should sell Interchange Plus to high-volume merchants (over $50K/month in card volume) and Tiered to price-sensitive small merchants — matching the model to the customer maximizes both merchant savings and ISO retention.
Last updated: April 2026
What Is Interchange Plus vs. Tiered Pricing?
Interchange Plus (also called Cost Plus pricing) is a payment processing pricing model where the merchant pays the actual interchange fee charged by card networks (Visa, Mastercard, Discover) plus a fixed markup added by the ISO or payment processor. Tiered pricing groups all card types into a small number of pricing tiers (typically Qualified, Mid-Qualified, and Non-Qualified) and charges the merchant a single rate for each tier, regardless of the actual interchange cost.
For ISOs and MSPs, understanding this distinction is not an academic exercise — it directly affects how you position your POS offering, the value you deliver to merchants, and your own margin structure. According to Electronic Transactions Association (ETA) research, Interchange Plus pricing has become the preferred model for merchants processing over $50,000 per month, while Tiered remains popular among smaller merchants who value simplicity over savings.
How Interchange Plus Pricing Works
In an Interchange Plus model, every transaction is priced at the actual interchange fee charged by the card network (Visa, Mastercard, Discover) plus a fixed markup added by the ISO. For example:
- Visa Consumer Credit (Swiped): ~1.55% + $0.10 per transaction (interchange)
- Mastercard World Elite (Keyed): ~2.95% + $0.10 per transaction (interchange)
- ISO Markup: +0.10% + $0.08 per transaction
- Merchant Effective Rate: ~1.65% + $0.18 for Visa swiped; ~3.05% + $0.18 for Mastercard keyed
The key advantage of Interchange Plus for merchants is transparency: they can see exactly what they are paying for each card type. For high-volume merchants processing a mix of premium rewards cards, business cards, and international cards — which carry the highest interchange fees — Interchange Plus typically results in a lower effective rate than Tiered pricing.
According to CardFellow, a merchant processing $100,000 per month in card volume with Interchange Plus pricing typically saves $300–$500 per month compared to Tiered pricing, simply because premium cards are priced at their actual cost rather than being averaged into a higher tier.
How Tiered Pricing Works
In a Tiered pricing model, all card transactions are sorted into one of three (or sometimes two) pricing buckets:
- Qualified Rate (Q): The lowest tier — typically applies to swiped/debit transactions with basic cards. Usually 1.5%–1.9%.
- Mid-Qualified Rate (MQ): Applies to rewards cards, business cards, and certain key-entered transactions. Usually 2.0%–2.5%.
- Non-Qualified Rate (NQ): The highest tier — applies to premium rewards cards, corporate cards, and all keyed/transaction-only transactions. Can reach 3.0%–3.5%.
The merchant pays the same rate for every card within a tier, regardless of the actual interchange cost. This simplifies billing but often means that merchants using premium rewards credit cards (which carry higher interchange fees) pay significantly more than they should under a cost-plus model.
The danger for merchants on a Tiered model is the card mix problem: as more consumers shift to rewards credit cards (which now account for over 60% of all general purpose cards issued in the U.S.), an increasing percentage of merchant transactions fall into the Mid-Qualified or Non-Qualified tiers — paying Tiered rates that are often higher than what they would pay under Interchange Plus.
Side-by-Side Comparison
How Interchange Plus Compares to Tiered Pricing
| Factor | Interchange Plus | Tiered Pricing | Winner |
|---|---|---|---|
| Transparency | Full cost visibility per card type | Hidden — merchant cannot see actual cost | I+ |
| Savings for High-Volume Merchants | 0.15%–0.40% lower effective rate | Often pays above actual cost | I+ |
| Simplicity | More complex — requires understanding interchange | Simple 3-tier structure | Tiered |
| ISO Margin Control | Fixed, predictable markup | Variable — ISO benefits from tier spread | Tiered* |
| Premium Card Handling | Charges actual interchange — fair for all cards | Premium cards often overcharged by 0.5%–1% | I+ |
| Best For | Restaurants, high-volume retailers, B2B | Small merchants, low-volume retail, simplicity seekers | Context |
| Card Data Security (EMV/NFC) | Lower interchange for properly authenticated transactions | Often bundled — benefit not always passed to merchant | I+ |
* Tiered pricing can offer higher ISO margins because the spread between tier rates and actual interchange costs is retained by the ISO. However, this can come at the expense of merchant trust and long-term retention.
Real-World Example: Restaurant Processing $500K/Month
Consider a full-service restaurant processing $500,000 per month in card payments, with an average ticket of $45 and the following card mix:
- Visa Consumer Debit (Swiped): 30% of volume — 1.55% + $0.10 interchange
- Visa Rewards Cards (Swiped): 40% of volume — 2.10% + $0.10 interchange
- Mastercard Business (Keyed): 15% of volume — 2.85% + $0.10 interchange
- Amex (Keyed): 15% of volume — 2.95% + $0.10 interchange
Under Tiered pricing (assume 1.79% Qualified, 2.29% Mid-Qualified, 3.29% Non-Qualified), the restaurant pays approximately $12,250/month in card processing fees.
Under Interchange Plus (assume ISO markup of 0.15% + $0.08 per transaction), the same restaurant pays approximately $11,050/month — a difference of $1,200/month or $14,400/year.
For a restaurant operating on thin margins (average restaurant profit margin is 3–9% according to the National Restaurant Association), saving $14,400 annually can be the difference between a profitable and unprofitable location.
Which Model Should ISOs Sell?
There is no universally correct answer — the right model depends on the merchant’s volume, card mix, and business priorities. Here is a practical framework for ISO partners:
ISO Pricing Model Recommendation Framework
Hotels and hospitality
B2B service businesses
Merchants asking “why am I paying so much?”
Retail with mostly debit cards
Price-sensitive, simplicity-focused merchants
Pro tip: The best ISO sales strategy is to offer a free card processing statement analysis — pull the merchant’s current processing statement, calculate what they would pay under Interchange Plus, and show them the difference. This approach consistently outperforms pitch decks and feature comparisons because it speaks directly to the merchant’s financial interest.
How OrderPin Supports Your Pricing Strategy
OrderPin’s white-label POS platform gives ISO partners the flexibility to configure and explain both pricing models to their merchant base. With real-time transaction reporting, card type breakdowns, and monthly processing summaries built into the merchant dashboard, OrderPin makes it easy to demonstrate the value of the right pricing model — and to justify the switch when needed.
Why ISO Partners Choose OrderPin
Frequently Asked Questions
Which pricing model saves merchants more on credit card processing?
For merchants processing over $50,000 per month in card volume, Interchange Plus typically saves 0.15%–0.40% on the effective processing rate compared to Tiered pricing. For a restaurant processing $500,000 monthly, this can mean $1,200 or more in monthly savings — $14,400 per year.
What is the Qualified rate in Tiered pricing?
The Qualified rate (Q) is the lowest tier in three-tier pricing, typically applied to basic debit and credit cards that are swiped with a PIN. It is usually 1.5%–1.9%. However, many merchants are surprised to learn that rewards cards, business cards, and keyed transactions are often charged at the higher Mid-Qualified or Non-Qualified rates — not the advertised Qualified rate.
Is Interchange Plus more complex to explain to merchants?
Initially, yes — Interchange Plus requires merchants to understand what interchange fees are. However, the transparency of the model is actually a selling point: merchants can see exactly what they are paying per card type, verify savings claims, and track their effective rate month over month. OrderPin’s merchant dashboard simplifies this with clear reporting and monthly summaries.
Why do some ISOs prefer selling Tiered pricing?
ISOs can achieve higher profit margins on Tiered pricing because the spread between the actual interchange cost and the tier rate is retained by the ISO. However, this comes with a trade-off: merchants who discover they are overpaying on premium cards may feel misled and switch processors. Many progressive ISOs now offer Interchange Plus as a transparent, value-based alternative that builds long-term merchant trust and reduces churn.
How do EMV chip and NFC payments affect interchange rates under each model?
Under Interchange Plus, properly authenticated transactions (EMV chip or contactless NFC) carry lower interchange fees than manually entered card-not-present transactions. This creates a direct incentive for merchants to invest in modern POS hardware and train staff to process cards correctly. Under Tiered pricing, the benefit of lower-cost authenticated transactions may be absorbed into the tier spread rather than passed to the merchant.
Conclusion
Interchange Plus and Tiered pricing each have their place in an ISO’s product portfolio. The key is matching the right model to the right merchant: Interchange Plus for high-volume merchants who will see meaningful savings and appreciate transparency; Tiered for small merchants who prioritize simplicity over savings and process mostly basic debit cards.
For ISOs who want to build long-term merchant relationships and reduce churn, offering Interchange Plus as the default for qualified merchants — combined with a free statement analysis — is one of the most effective sales strategies in the payment industry. It positions you as a trusted advisor who is looking out for the merchant’s financial interests, not just selling a commodity service.
About OrderPin
OrderPin is a white-label POS platform built for ISO and MSP partners. We offer full data ownership, flexible pricing models, and seamless API integrations to help you build a recurring revenue business under your own brand. Our platform supports both Interchange Plus and Tiered pricing with transparent reporting that helps you sell smarter and retain longer.
Learn more about OrderPin’s white-label solution
