Payment gateway in Canada: what to look for before you sign

A payment gateway in Canada does the same job as anywhere else: it takes card details from your checkout, sends them for approval, and returns the answer in a second or two. If you want the basics, our guide to what a payment gateway is covers them, so we won't repeat them here. This guide is about what's different when you sell in Canada.

Four things are. Many of your customers will want to pay with debit, and not every debit option works online. Sales tax depends on where the order is going. Quebec forbids card fees outright. And a gateway built for US merchants can quietly price or settle in US dollars. Below is the checklist we'd use, with the rules behind each item. Rules and rates are current as of October 2026.

What should you look for in a payment gateway in Canada?

Start with this list, then read the sections below for the detail behind each row.

Can customers pay with debit online in Canada?

Yes, in two main ways, and gateway support varies. The first is Visa Debit. Visa's debit card page says Visa Debit payments come out of the cardholder's chequing account and can be used to check out online. For you, it runs like a credit card: Visa's processing guide for ecommerce and telephone order merchants says Visa credit and Visa Debit are used the same way in the ecommerce channel and need the same processing procedures.

Accepting it is still a choice. The Code of Conduct for the Payment Card Industry in Canada says a merchant that accepts a network's credit cards isn't obliged to accept its debit cards. So don't assume it's on. Ask, and test it with a real Visa Debit card before launch. Our guide to Visa Debit in Canada covers the refund and hold quirks.

The second is Interac. Interac says Interac Debit lets customers pay from their bank account in store and where accepted online and in apps. It also promotes Interac Direct for online checkout, which it describes as card-free payment from a chequing, savings, or line of credit account at participating merchants, and it has a page for merchants on how to accept online payments with Interac Direct. If a provider's materials still mention Interac Online, ask whether that option is live for new merchants and what it costs. Our guide to what Interac is explains how Interac Debit is priced.

One practical point: a Visa Debit sale online runs on Visa's network, so plan for the same dispute exposure you'd have on a Visa credit card. Interac's promise of zero chargebacks belongs to Interac Debit, not to Visa Debit.

Why does settling in Canadian dollars matter?

Because currency conversion is a cost you won't see on your rate sheet. If a gateway charges your customers in US dollars, they see a foreign amount on their statement, which looks odd coming from a Canadian shop. If it pays you in US dollars, every deposit has to be converted before it's useful to a Canadian business, and your deposits stop matching your sales.

Here's a made-up example. A furniture maker in Edmonton takes about $30,000 a month in online orders. Its gateway settles in US dollars, and its bank converts each deposit back to Canadian dollars at a spread of, say, 2%. That's $600 a month, or $7,200 a year, before a single processing fee. None of it appears on the processing statement, which is why it's easy to miss.

Ask three questions: which currency your customers are charged in, which currency you're paid in, and which bank account receives the money. Then ask how cards issued outside Canada are priced, since a growing online store will see some. Letting a shopper with one of those cards choose to pay in their own currency at checkout is a separate service, dynamic currency conversion, and our guide to it covers what Visa and Mastercard ask of merchants who offer it.

Your statement should make all of this visible. Under the Code of Conduct, merchants must receive or have access, at least monthly, to statements showing rates and totals for interchange, network fees, and all other fees. If a gateway's reporting can't tie each deposit back to the sales and fees behind it, that's a reason to keep shopping.

How should a gateway handle GST, HST, PST, and QST?

The gateway charges whatever total your cart sends it, so the tax is worked out in your cart or ecommerce platform, based on where the order is going. For goods, the Canada Revenue Agency's place-of-supply rules say that when a good is delivered to the purchaser in a participating province, the supply is made in that province and HST applies at that province's rate. So a shop in Halifax shipping to Toronto charges Ontario's HST, not Nova Scotia's.

Here's what a made-up Halifax shop should charge on a $100 taxable order, depending on where it ships, using the general rates in CRA's rate table:

Nova Scotia's row trips up old tax tables: its HST dropped from 15% to 14% on April 1, 2025, according to CRA. Check that your platform has the current rate.

Provincial sales taxes are a separate layer. British Columbia, Saskatchewan, and Manitoba run their own sales taxes, and Quebec runs the QST. Whether you have to collect them on orders from outside the province depends on each province's rules, so check with the province or your accountant before you switch them on. A customer in Vancouver pays 5% GST on that $100 order either way. Where the QST does apply, Revenu Québec says it's calculated at 9.975% on the selling price excluding the GST, so the two taxes aren't stacked.

What to check on the gateway side: the tax shows as its own line on the receipt, the amount charged matches the cart total to the cent, and refunds reverse the tax along with the price. For tax setup in a store, our guide to the POS system in Canada covers product-level codes and Ontario's point-of-sale rebate.

How does your gateway choice change your PCI scope?

The less your website touches card data, the shorter your PCI questionnaire. PCI rules come from the card industry, so they work the same way in Canada as anywhere else. In practice:

• A hosted payment page, a redirect, or a payment link usually fits SAQ A, the shortest questionnaire.
• An embedded payment form can also fit SAQ A, but since March 31, 2025, PCI SSC has required merchants that embed a provider's form to confirm their site is not susceptible to attacks from scripts.
• A card form your own website builds pushes you toward SAQ A-EP.
• Card data passing through your own server means SAQ D, the longest.

If you don't have developers and a security budget, choose a gateway that offers a hosted payment page or embedded fields. Our guide to PCI compliance in Canada explains who asks for your questionnaire and when.

Can you add a credit card fee at an online checkout in Canada?

Outside Quebec, yes, on credit cards only, within the networks' caps. Visa's surcharging FAQ for Canadian businesses caps a surcharge at the merchant discount rate, with an absolute maximum of 2.4%, requires 30 days' written notice to your acquirer, and says surcharges aren't permitted on Visa debit or prepaid cards. The same FAQ says convenience fees are not permitted in Canada. Mastercard's Canadian rules also cap surcharges at 2.4% and exclude Debit Mastercard and prepaid cards.

Quebec is different. Quebec's consumer protection office says merchants may not charge consumers any fee for paying by debit or credit card, and telling the customer in advance doesn't make the fee legal. For an online store, that means your gateway has to apply a surcharge only to credit cards and never to customers it shouldn't. If you're based in Quebec, or many of your customers are, the simplest safe setup is no card fee at all. Confirm with the OPC how the rule applies to your orders before you build anything clever.

Our surcharging program handles compliance, disclosure, and setup, and our guide to the credit card surcharge in Canada covers the rules province by province. A Montreal business should read the Quebec section first.

What does a payment gateway cost in Canada?

Gateway pricing comes in two shapes: separate gateway fees on top of a merchant account, or a bundled rate that folds everything into one percentage. Either way, ask for every fee in writing, including setup, monthly, per-transaction, and add-on charges.

Two Canadian rules work in your favour. Under the Code of Conduct, providers must notify you 30 to 60 days before a new or increased fee takes effect, and you can exit your agreement without penalty within 70 calendar days after the change comes into effect. And since October 19, 2024, Visa and Mastercard have cut domestic consumer credit interchange on online transactions by 10 basis points for qualifying small businesses, according to Finance Canada. On interchange-plus pricing, that kind of cut shows up on your statement. On a flat rate, it may not.

Our guide to credit card fees in Canada breaks down what you pay, and if you're comparing providers, see Clearo vs Helcim and Clearo vs Stripe. For the account side, read our guide to the merchant account in Canada.

How do you test a payment gateway before launch?

Run real transactions, small ones, before your first customer does. A one-hour test catches most of the problems in this guide:

1. Pay with a Visa Debit card and confirm it's approved and shows up as Visa Debit in your reports.
2. Place orders shipping to three provinces, such as Ontario, Alberta, and Nova Scotia, and check the tax on each.
3. Place an order with a Quebec address and confirm no card fee is added.
4. Refund one order in full and one in part, and check that tax comes back correctly.
5. Try a card with a wrong security code and read the decline message your customer would see.
6. Open the payment page on a phone, in English and in French if you offer it.
7. When the deposit lands, match it to the sales and fees on your report, to the cent.

If any step fails, fix it before launch. Problems with tax and card fees are much harder to unwind after a few hundred orders.

Common mistakes when choosing a gateway in Canada

• Signing with a gateway that settles in US dollars without pricing the conversion.
• Assuming every debit card will work online without testing Visa Debit.
• Using one tax rate for every province.
• Turning on a surcharge that hits debit cards or customers in Quebec.
• Building your own card form to save a monthly fee, then landing in a longer PCI questionnaire.
• Ignoring a fee-change notice and missing the 70-day exit window.

Your next step

We work with businesses across Canada, and our online payments include hosted checkout, gateway integration, and fraud screening with AVS, CVV checks, and velocity rules. If you already sell online, send us a recent statement for a free statement review and we'll show you what your gateway and processing really cost, line by line. If you're choosing a gateway for the first time, contact us and we'll go through the checklist above with you.