Choosing the right pricing model for card processing is essential for transparency, savings, and compliance. Here’s a breakdown of the most common options and what you need to know about passing fees to customers.
Pricing Models
Interchange Plus
With Interchange Plus, you pay the actual interchange rate (set by the card networks) plus a transparent, fixed markup from your processor. Each transaction is itemized, so you see exactly what you’re paying and why. This model is often the most cost-effective and fair, especially as your business grows or if you process a variety of card types.
Pros: Transparent, itemized fees; cost savings for larger or growing businesses
Cons: Variable monthly costs; more detailed statements
Best For: Businesses that want full transparency, have higher volumes, or want to optimize costs as they grow
VS
Flat Rate
Flat Rate pricing means you pay a fixed percentage (and sometimes a flat fee) for every transaction, regardless of the card type or how it’s processed. This model is simple and predictable—great for budgeting and businesses with lower volumes or straightforward needs. However, the simplicity often comes with a higher overall cost, since the processor builds in a larger margin to cover all scenarios.
Pros: Simple, predictable pricing; easy to understand
Cons: Can be more expensive for higher-volume or larger-ticket businesses
Best For: Small businesses, startups, or anyone who values simplicity over granular cost savings
Why Interchange Plus Over Flat Rate?
Interchange Plus pricing gives you direct visibility into the true cost of each transaction. You only pay the actual interchange plus a small markup, so you’re not overpaying for low-cost transactions. Flat rate is simple, but often includes a higher margin for the processor and less flexibility as your business grows. If you want to maximize savings and transparency, Interchange Plus is usually the better long-term choice.

Passing Fees Off: Compliance Pricing Options
Cash Discount
A cash discount program lets you offer a lower price to customers who pay with cash. Instead of adding fees for card payments, you simply discount the total for cash-paying customers at checkout. This approach is simple, compliant, and easy for customers to understand.
Approved Signage:
"We offer a [RATE]% discount to customers paying with cash."
Considerations:
Display one price (the list price).
Apply discount at checkout if paid in cash.
Do not add fees to receipts or final price for non-cash tenders.
Dual Pricing
Dual pricing means every item displays both a card price and a cash price, giving customers a clear choice at checkout. Customers paying with cash receive the lower price, while those using cards pay the listed card price. It’s a transparent, compliant way to manage payment costs without adding fees at the register.
Approved Signage:
"All items have two prices, a List price and a Cash price. Customers are billed based on how they choose to pay.savings"
Considerations:
Display All items must reflect both prices on tags, menus, or labels.
Cash = Cash Price; All other tenders = List Price.
Do not add fees to receipts or final price.
Surcharging
Charge a fee on credit card payments (not debit cards) to offset processing costs.
Approved Signage:
“We impose a surcharge of [RATE]% on the total transaction amount on credit card products, which is not greater than our cost of acceptance. We do not surcharge debit cards.”
Considerations:
Be in a state that legally supports surcharging.
Utilize equipment that supports surcharging.
Do not surcharge PIN Debit, Pre-Paid Debit, or
Signature Debit cards.
Cap the surcharge at 3%.

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and help you find the best solution—no hidden fees, no surprises.
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