How to lower your credit card processing fees in Ontario
If card fees feel like a black box, that's by design. Here's where the money actually goes on every sale in Ontario — and seven concrete ways to pay less without switching your bank.
First, what makes up a “processing fee”
Every card sale has three layers. Interchange is set by Visa and Mastercard and paid to the customer’s bank — it’s the same for everyone and you can’t negotiate it. Assessments are small network fees. The third layer, the processor’s markup, is the only part that’s actually yours to shop — and it’s where most Ontario businesses quietly overpay.
The catch: most processors quote a single “blended” rate that rolls all three together, so you can’t see the markup. Step one to paying less is being able to see it.
1. Get your true effective rate
Add up every fee on last month’s statement — not just the headline rate, but every line item — and divide by your total card sales. That percentage is your effective rate. For a typical Ontario small business it lands between 2.5% and 3.5%. Knowing the number is what turns a vague “fees feel high” into something you can fix. (There’s a full walkthrough in how to read your merchant statement.)
2. Hunt the junk fees
Statement fees, monthly minimums, PCI “non-compliance” fees, batch fees, gateway fees, annual fees — none of these are interchange, and many are pure margin. Circle every fixed monthly charge. A business doing $20,000/month in cards can easily lose $60–$120/month to line items that have nothing to do with the cards themselves. See what counts as a junk fee.
3. Keep Interac cheap
Canadian debit runs on Interac, which is generally much cheaper than credit — often a flat few cents rather than a percentage. If your processor blends Interac into a percentage rate, you’re overpaying on every debit tap. In Ontario, where debit is a big share of everyday spend, pricing Interac correctly is one of the fastest wins there is. (More: Interac vs credit-card fees.)
4. Take the card in person whenever you can
Tapped, inserted or swiped cards are “card-present” and carry the lowest rates. Manually keyed or online payments are treated as higher-risk and cost more (often around 2.9% + 30¢). If you’re typing card numbers for phone orders, moving those to a tap or a payment link can shave real money.
5. Watch out for “free terminal” leases
A free or cheap terminal is often paired with a multi-year lease and an inflated rate that more than pays for the hardware. Buy your terminal outright, or work with a provider who includes it without a lease, and read the contract for early-termination fees before you sign anything.
6. Ask about surcharging — carefully
Since 2022, Canadian merchants can surcharge credit cards up to 2.4% (with notice and network rules), but not Interac debit. It can offset credit costs, but it can also cost you sales if customers resent it. It’s a tool, not a default — model it before you turn it on.
7. Consolidate payments and POS
Paying separately for a point-of-sale and for payments usually means two markups. When the POS is included with processing, that’s one less monthly bill and one less place to hide a fee. That’s the model we built Surge POS around.
The shortcut
You can do all seven yourself. Or you can hand us last month’s statement and we’ll compute your effective rate, flag the junk fees, and show you the exact dollar difference against Surge’s flat 2.5% + 15¢ — free, in about fifteen minutes. If you’re in the city, start with payment processing in Toronto, or just book a call.
This guide is general information, not financial or legal advice. Card network rules and rates change — confirm the current details before acting.