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Understanding interchange fees: Calculation, costs, and pricing models

It is important for merchants to understand interchange fees in order to effectively manage their business costs. Although these fees are often overlooked, they can have a substantial impact on a merchant’s financial health. By gaining a clear understanding of interchange fees, merchants can make more informed decisions about their payment processing options, potentially saving money and improving profitability.

Without these fees, the infrastructure that supports electronic payments would be unsustainable. They help cover the costs of maintaining secure and efficient transaction networks, issuing cards, and managing cardholder accounts.

These fees, often significant, can impact a business’s bottom line. For small businesses, in particular, the costs can add up quickly and erode profit margins. 

Let’s explain interchange fees and rates so that merchants can more effectively navigate this complex aspect of their business finances.   

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What is an interchange fee, and how does it work?

An interchange fee is a charge merchants pay when a customer uses a credit or debit card to make a purchase. It’s essentially a transaction fee passed on from the acquiring bank (the merchant’s bank) to the issuing bank (the customer’s bank). This fee covers the costs associated with issuing cards, managing cardholder accounts, and assuming the risk of non-payment.   

For example, when you buy a coffee and pay with your debit card, your local coffee shop’s bank pays a small fee to your bank. This fee is the interchange fee.

These fees are typically a percentage of the transaction amount and a fixed fee per transaction. The specific rate can vary depending on several factors, such as the type of card used (credit or debit), the merchant’s industry, and the nature of the transaction (in-person or online). Higher interchange fees are often associated with rewards cards or transactions deemed riskier by banks, reflecting the additional costs and risks involved in offering these benefits and services. Consequently, interchange fees are a vital revenue stream for issuing banks, supporting the infrastructure that allows for secure and convenient electronic payments.

The impact of interchange fees on merchants can be significant, especially for small businesses with tight profit margins. To mitigate this, some merchants may choose to set minimum purchase amounts for card transactions or offer discounts for cash payments. 

Regulating interchange fees has been a topic of debate and legislative action in many regions. For instance, the European Union has imposed caps on interchange fees for consumer debit and credit card transactions to reduce costs for merchants and consumers. 

Similarly, in the United States, the Durbin Amendment to the Dodd-Frank Act aimed to limit interchange fees on debit card transactions. These regulatory measures seek to balance the interests of merchants, consumers, and financial institutions, ensuring a fair and efficient payment ecosystem.

How is an interchange fee calculated?

Interchange fees are determined by several factors:

Card type

Premium cards or reward cards typically have higher interchange fees than standard debit cards.  

Transaction type

Card-not-present transactions, like online purchases, often incur higher fees due to increased fraud risk.   

Merchant category code (MCC)

This code categorises businesses and influences the interchange rate based on factors like transaction size and perceived risk.   

It’s important to note that different card networks (Visa, Mastercard, etc.) have their own formulas for calculating interchange fees.   

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How much are interchange fees?

Interchange fees vary depending on factors like the card type, transaction type, and country. While specific rates can fluctuate, it’s generally accepted that interchange fees in the UK and EU are lower than in other regions.   

A key point to remember is that interchange fees are non-negotiable and are regularly adjusted by card schemes. To find the most up-to-date information on interchange rates, you can visit the websites of card schemes like Visa or Mastercard.   

Understanding these fees and their variations helps merchants make informed decisions about their payment processing strategies and negotiate better terms with payment providers.

What is interchange++ pricing?

Payment processors use various pricing models for interchange fees. One such model is Interchange++. This model, often referred to as IC++, clearly outlines the components of the fee: the interchange fee itself, the acquirer’s fee, and the card scheme fee. This transparency allows merchants to see exactly how much they’re paying for each transaction.   

In contrast, blended rates bundle interchange fees, the processor’s markup, and other charges into a single fee. While simpler, blended rates can obscure the true cost of each transaction.   

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Next steps for managing interchange fees

Interchange fees are a complex but essential aspect of card payments. Understanding how they work is crucial for merchants aiming to optimise their payment processing costs. By choosing a payment processor that offers transparent pricing models like Interchange++, businesses can gain better control over their expenses.

Trust Payments provides a range of payment processing solutions that offer clarity and efficiency. With our support, you can streamline your payment operations and focus on growing your business.

Contact us today to learn more about how Trust Payments can help you manage interchange fees.

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