Understanding Interchange Fees in Canada

Interchange is the largest component of card acceptance cost. Here's how it's calculated and how to optimise it.

Small and medium-sized enterprises are the backbone of the Canadian economy, yet they frequently pay the highest effective rates for payment processing. Understanding interchange categories, negotiating acquirer fees, and routing intelligently can materially improve margins.

Looking Ahead

The pace of change in payments is not slowing down. Artificial intelligence, real-time rails, embedded finance, and open banking are all converging simultaneously. The businesses that will thrive are those that build flexible infrastructure today, rather than locking themselves into rigid legacy systems.

The chargeback process was designed to protect consumers, but it has become a significant source of revenue leakage for merchants. Building a robust dispute management programme — with clear policies, strong evidence packages, and timely responses — is essential for any business processing significant card volume.

Industry Context

Canada's payment market is distinctive in several ways. The dominance of Interac debit, the high penetration of contactless payments, the bilingual regulatory environment, and the particular importance of cross-border commerce with the United States all shape the strategic choices available to Canadian merchants and payment businesses.

Recurring billing models require a fundamentally different approach to payment infrastructure. Retry logic, dunning management, and account updater services are not optional extras — they are the difference between sustainable revenue and unnecessary churn.