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Payment processing is the part of ecommerce nobody thinks about until it goes wrong: a held payout, a declined card type, or fees quietly eating your margin. For Canadian small businesses, the choices have local wrinkles, from CAD settlement to Interac expectations, that generic advice misses. Here is how online payments actually work in Canada and how to choose a setup that fits your store.
How online payments work in Canada
When a customer pays on your store, three things happen: a gateway securely transmits the card details, a processor moves the money through the card networks, and the funds settle into your bank account, usually in Canadian dollars, one to a few business days later. You never handle raw card numbers yourself; that is the entire point of using a proper processor. Platforms like Shopify bundle much of this together, while custom stores connect a processor through an integration, something our ecommerce development services handle as part of every build.
The main options for Canadian stores
Shopify Payments is the default for Shopify stores: built in, supports major cards and digital wallets, and settles in CAD. Stripe is the leading choice for custom and WooCommerce stores, with strong developer tools and broad card support. Moneris is the long-established Canadian processor, familiar to banks and useful if you also take in-person payments and want one provider. Square suits businesses bridging online and in-person sales, especially those already using Square hardware. Interac is worth a special mention: Canadians expect it, but Interac Online availability for ecommerce is limited compared to in-store Debit, so confirm exactly what each provider supports before promising it at checkout.
What to compare beyond the headline rate
Fees matter, but the advertised percentage is only part of the cost. Compare the per-transaction fee plus the fixed cents, monthly fees, and any charges for chargebacks or refunds, and check current pricing directly since providers change terms. Then look past fees entirely: how fast do payouts settle, and are they in CAD or converted? What is the provider's process when they flag an account for review, and how long can funds be held? New stores with sudden sales spikes get reviewed most often, so read the held-funds policy before you need it. Also confirm contract terms and how hard it is to leave.
Security and compliance you cannot skip
Card security is governed by PCI DSS, a set of rules for handling payment data. Using a hosted checkout or a compliant processor keeps the burden off you; storing card numbers in your own database is never acceptable and would violate your processor agreement. Enable 3D Secure where your provider supports it, which shifts some fraud liability and is increasingly expected by Canadian banks. Keep your platform and plugins updated, because most payment breaches exploit outdated software, not clever hacking.
Common mistakes Canadian stores make
The most expensive mistake is choosing on rate alone and discovering payout holds during your first busy week. Next is offering too few payment methods: at minimum, support major credit cards plus Apple Pay and Google Pay, which meaningfully lift mobile conversion. Another is forgetting about refunds and chargebacks in the plan; know your provider's process before your first dispute, not during it. Finally, test with real small transactions before launch, including a refund, so you see the full money flow. If you are still planning the store itself, our guide to ecommerce website development in Windsor, Ontario covers how payments fit into the bigger build.
Should I use Shopify Payments or a third-party processor on Shopify? Shopify Payments is simplest and usually cheapest on Shopify because third-party gateways can add extra fees. Use a third-party processor only if you have a specific reason, like an existing Moneris relationship or needs Shopify Payments does not cover.
How long until I receive my money? Typically one to a few business days after each sale, depending on the provider and your bank. First payouts can take longer while the provider verifies your account, so do not launch counting on day-one cash flow.
What is a chargeback and how do I handle one? A chargeback is when a customer disputes a charge through their bank and the funds are pulled back. Respond promptly with order evidence: confirmation emails, tracking numbers, and your policies. Clear product descriptions and easy returns prevent most disputes before they start.
Do I need to accept Interac e-Transfer on my store? Manual e-Transfers do not scale and create reconciliation headaches. Offer Interac through a proper payment integration if your provider supports it, rather than an email address on the checkout page.
Setting up payments correctly the first time saves expensive fixes later. Get a free quote and we will recommend the right processor for your store and configure it properly, including testing the full payment flow before you launch.