Understanding IC++ And Interchange Fees: Why They Matter For Businesses?

Fee terminologies such as Interchange++ (IC++), interchange, blended, and pay-as-you-go pricing often make comparing payment providers confusing for many businesses. With these pricing models directly affecting approval rates, cross-border costs, and long-term scalability, understanding how interchange fees and IC++ pricing work is essential.

What are interchange fees?

An interchange fee is a transaction fee paid from the merchant’s acquiring bank to the customer’s issuing bank (the bank that issued the customer’s card).

When a customer pays with their card, part of the transaction is automatically routed to the cardholder’s bank to compensate for:

• Processing the transaction
• Fraud prevention and risk mitigation systems
• Handling chargeback risk
• In some cases, funding cardholder rewards programs.

These fees are typically set by major card networks like Visa and Mastercard, and not by the payment provider itself, which is why different cards often carry different interchange costs. For instance, credit cards usually have higher interchange fees than debit cards.

How card transactions work

Multiple financial institutions and networks work in tandem to process card transactions.

• The issuing bank (issuer): the bank issuing the customer’s card
• The acquiring bank (acquirer): the financial institution processing payments on behalf of the merchant
• The card network: card networks such as Visa or Mastercard that route transaction information between banks.

When a payment is made, the transaction travels through a chain as follows:

1. The merchant sends the payment request to the acquirer
2. The card network routes it to the issuing bank
3. The issuer approves or declines the transaction
4. The funds are settled with the merchant.

Each participant in this ecosystem charges a fee for its role in facilitating the transaction as follows:

1. Interchange fee: Usually the largest portion of the transaction cost, this fee is paid to the issuing bank to cover the operational risks and costs of processing card transactions, including fraud prevention and financial liability for chargebacks
2. Scheme fee: Charged by the card networks for the maintenance and development of the global payment infrastructure
3. Acquirer fee/processor markup: Charged by the payment provider or acquiring bank for processing transactions and managing fund transfers.

For years, many providers offered blended pricing, charging a single flat fee that gave businesses little visibility into the true cost of card transactions.

As global commerce expanded and payment ecosystems became fragmented, this lack of transparency became an increasingly significant issue, especially for high-volume or international merchants. Businesses needed greater visibility into how their payment costs were calculated, which led to the rise of the IC++ pricing model.

What is interchange++ (IC++)?

IC++ stands for interchange, plus scheme fees, plus processor markup. Instead of bundling everything into a single flat rate, the pricing is broken down into its components, giving merchants a clear, itemised breakdown of fees.

This transparency allows businesses operating globally to:

• Optimise routing strategies
• Understand local market costs
• Reduce unnecessary cross-border fees
• Make more informed infrastructure decisions as they scale.

Advantages of interchange++ for merchants

The IC++ model is considered a preferred pricing choice for countless merchants, and for good reasons:

• Complete pricing transparency: Unlike conventional pricing structures, IC++ allows merchants to see the individual costs incurred for each transaction, creating a more transparent relationship between businesses and their infrastructure partner
• Lower total transaction costs: Rather than overpaying through flat or blended pricing models, high-volume businesses can pinpoint cost-saving opportunities and negotiate better rates with IC++
• Better cost optimisation: With a detailed breakdown of transaction costs, merchants can identify exactly which payment methods are driving higher fees and encourage customers to opt for lower-cost payment methods where appropriate, such as debit cards over credit cards or securing better rates for frequently used card types
• Informed decision-making: The granularity provided by IC++ enables businesses to make informed decisions about their payment infrastructure that best meet their financial objectives
• Easier scalability: IC++ pricing supports scalable growth by providing clearer forecasting, greater control over transaction economics, and deeper visibility into how local payment ecosystems impact margins and performance.

Build on infrastructure designed for a global force

As businesses expand across borders, payment performance becomes increasingly tied to local acquiring capabilities, intelligent routing, settlement efficiency, and the ability to navigate fragmented financial ecosystems.

Unlimit provides the financial infrastructure that helps businesses scale globally with greater transparency, flexibility, and control. By mapping hyper-local payment ecosystems directly into a unified technology stack, Unlimit enables businesses to optimise transaction performance, access domestic payment rails across global markets, reduce unnecessary cross-border friction, and move value seamlessly across continents.

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