Why Your Online Transactions Cost More Than In-Person (And What to Do About It)

This is not a billing error or a glitch. Across the payments industry, online transactions consistently carry higher processing fees than in-person sales. To understand why — and how you can optimize your setup to protect your profit margins — you have to look at how credit card networks evaluate risk and the hidden infrastructure required to move money over the internet.

The Core Difference: Card-Present vs. Card-Not-Present

Every credit card transaction falls into one of two primary buckets:

• Card-Present (CP): The customer is standing in front of you, and their physical card interacts with your payment terminal via an EMV chip dip, a contactless tap, or a magnetic stripe swipe.
• Card-Not-Present (CNP): Electronic data is entered without the physical card interacting with a reader. This includes e-commerce checkouts, recurring billing, mailed-in payments, and over-the-phone orders where you type the card number into a keypad.

Even if a customer is physically standing in your store, if your card reader is broken and you have to manually type in their card number, that transaction is instantly downgraded to a more expensive Card-Not-Present rate.

Here are the three main reasons why CNP transactions cost you more.

Reason 1: The Fraud Risk Premium

The baseline cost of every credit card transaction is dictated by interchange rates — non-negotiable fees set directly by Visa, Mastercard, Discover, and Amex. When establishing these rates, the card brands operate on a simple principle: higher risk equals higher fees.

When a physical card is inserted into a terminal, the EMV chip generates a unique, one-time transaction code that is virtually impossible to counterfeit. Because the bank can cryptographically verify that the actual card was present, the risk of fraud is incredibly low.

Online, that physical security is gone. Stolen credit card numbers are easily purchased on the dark web and used to make fraudulent e-commerce purchases. Because the card networks and issuing banks are taking on significantly higher fraud risk by approving a CNP transaction, they charge a higher base interchange rate to offset their potential losses.

Reason 2: Increased Chargeback Liability

Because online transactions lack physical verification — like a chip read or a signature — it is much easier for consumers to initiate chargebacks. This includes true fraud, where a stolen card was used, but also "friendly fraud," where a legitimate customer disputes a charge because they forgot about the purchase or want to avoid paying.

If a chargeback is filed on a Card-Not-Present transaction, the burden of proof falls heavily on the merchant. The elevated processing fees help processors subsidize the administrative costs of managing these higher dispute volumes.

Reason 3: Extra Layers of Payment Technology

When a customer taps their card in person, the terminal communicates directly with the processor. Online transactions require more infrastructure. To safely transmit sensitive data from your website's checkout page to the processing network, you need a Payment Gateway (such as Authorize.Net or Stripe). Gateways encrypt the data, run fraud checks, and tokenize the card information.

These gateways are third-party software platforms, and they charge their own separate gateway fees — usually a flat monthly fee plus an additional $0.10 to $0.30 per transaction on top of your standard processor markup.

How to Lower Your Card-Not-Present Costs

While you cannot completely eliminate the premium associated with online sales, you can take strategic steps to ensure you are not paying a penny more than necessary.

1. Capture AVS and CVV Data

The Address Verification System (AVS) checks if the billing address entered online matches the one on file with the bank. The CVV is the 3- or 4-digit security code on the card. If your payment gateway is not set up to require and verify both of these data points, Visa and Mastercard will penalize you with an even higher "downgraded" interchange rate.

2. Pass Level 2 and Level 3 Data (For B2B Merchants)

If you sell to other businesses and accept corporate or purchasing cards, you can unlock significantly lower CNP interchange rates by submitting extra line-item data with each transaction — such as tax amounts and invoice numbers. This is known as Level 2 and Level 3 processing, and it can reduce your online fees by nearly 1%.

3. Evaluate Your Pricing Model

Flat-rate processors like Square or PayPal charge the exact same percentage for a premium rewards card as they do for a basic debit card. If you process a high volume of online sales, switching to an interchange-plus pricing model ensures you only pay the true cost of the card being used, plus a small transparent markup. To see how different processors treat CNP vs. card-present pricing, use our rate comparison tool.