Accepting Interac in Canada

Interac is Canada’s domestic debit network and the country’s default way to move money between bank accounts. If you are researching Interac Online, start here: that product is no longer the route to online acceptance, and the alternatives behave differently enough to matter.

Routes

Interac Online is gone: what merchants use now

Interac Online, the browser-based bank payment used at Canadian checkouts, was discontinued by the major Canadian banks as usage declined in favour of mobile-first alternatives. Merchants now reach the same customer through two routes: Interac Debit online, accepted through an acquirer as a card-style transaction, and Interac e-Transfer for Business, an account-to-account payment addressed by email, mobile number or account routing. They are not interchangeable. One sits in your card flow, the other in your banking flow, and they reconcile differently.

How to accept Interac as a merchant

You do not contract with Interac. For Interac Debit online and in store you need an acquirer, exactly as you would for any card acceptance. For Interac e-Transfer for Business, availability depends on your business bank and the feature set varies between institutions, including whether account number routing and real-time receipt are supported. That variation is a genuine selection criterion rather than a detail.

Disputes

No chargebacks, and what that is worth

Interac payments do not carry card-style chargebacks. For merchants in categories with high dispute rates that removes a loss line and an operational cost at once. The trade-off is that refunds are payments you initiate rather than reversals the network handles, and disputes are resolved with the customer directly. Quantifying your current chargeback cost is the only way to judge whether that trade is favourable, and it usually is in higher-risk categories.

Choosing

Choosing between the two routes

The section above says the two routes are not interchangeable and that they reconcile differently. Here is how to choose between them, because the answer is not the same for every kind of order.

Interac Debit online sits in your card flow. It reuses the reconciliation, the refund process and the reporting you already run for cards, and it costs card-style money. Interac e-Transfer for Business sits in your banking flow. It costs less per transaction and hands you a matching problem, because an account-to-account payment arrives without the reference structure card processing provides by default.

So choose by order value and by frequency. High-volume, low-value consumer checkout belongs on Interac Debit, because the effort of matching each payment dominates the saving on each payment. High-value or invoiced collection, particularly business to business, belongs on e-Transfer, where the per-transaction saving is large enough to pay for the matching several times over. And the feature that decides it in practice is whether your business bank supports account number routing and real-time receipt, because without those two the matching is manual and the saving disappears into somebody’s afternoon.

Interac fees and the 1 November 2026 switch fee change

Interac publishes its own fee schedule. The issuer switch fee is set at $0.013985 and increases to $0.014438 with effect from 1 November 2026. Interac is explicit that applicable interchange is subject to qualifying criteria and can vary by merchant setup and merchant category code, with certain categories qualifying for specialised pricing. That last point is the actionable one: if nobody has checked whether your MCC qualifies for specialised pricing, that is a question for your acquirer with a number attached to it.

The merchant category question, with a number on it

The fee schedule above contains two numbers. One is published to six decimal places and the other is not published at all, and the second is worth several times the first.

Start with the visible one. The issuer switch fee moves from $0.013985 to $0.014438 on 1 November 2026. On a million transactions that difference is roughly $453 a year. It is precise, it is public, and it does not deserve a meeting.

Now the invisible one. Interac states that applicable interchange is subject to qualifying criteria and can vary by merchant setup and merchant category code, with certain categories qualifying for specialised pricing. Most merchants cannot say which merchant category code their Canadian volume is booked under, let alone whether it is the right one. Take 4 million euros of Canadian revenue with 45 per cent on Interac Debit, so 1.8 million euros. A fifteen basis point difference in qualifying interchange is 2,700 euros a year; forty basis points is 7,200 euros. Small enough that nobody chases it, permanent enough that it recurs every year, and free to ask about.

So the email writes itself. Which merchant category code is our Canadian volume booked under, does that category qualify for specialised pricing under the published criteria, and if it does, what changes. The worst outcome is a no in writing, which is still a better position than never having asked.

Which payment provider supports Interac for merchants in Canada?

Moneris, Helcim and Shopify Payments in Canada, alongside Stripe, all document Interac, among others, and any acquirer serving Canada supports Interac Debit; e-Transfer for Business depends on your bank. The useful questions are what your effective Interac rate is against your card rate, whether your merchant category has been assessed for specialised pricing, and which of the two Interac routes your volume should actually be using.

Reviewing what Interac costs you

What you pay is set in your acquiring or banking agreement, not by Interac. Start by establishing whether you are overpaying your PSP, or move straight to cutting your PSP costs, where interchange, scheme fees and markup are separated before anything is negotiated.

Relevant markets: Canada