Best payment processors for Canadian small businesses

A Smithville shop does not need a US “2.9% + 30¢” list because a blog called it standard. It needs the published Canadian fee for the way the money actually moves. US processor roundups skip Interac Debit, skip Helcim, and skip the week you can still send a Wave invoice and take an Interac e-Transfer.

This comparison is what Canadian SMBs actually open: Square, Helcim, Stripe, Moneris, and PayPal — plus the week a Wave or FreshBooks invoice plus e-Transfer is enough. Payment-processor prices checked against public vendor pages, 7 September 2026. This is not a till lab.

Who this page is for

• A Canadian sole prop about to buy a terminal because a client asked “do you take Visa?” once.
• A counter that needs Interac Debit tomorrow, not a US debit percentage pasted onto a Canadian till.
• A website checkout that needs a printed CAD card rate — and an honest Interac line, or an honest “not published.”
• Not a bank RFP. Not a week of Smithville sales. Not an invented Helcim “typical 2.1%.”

Snapshot (public pages, 7 September 2026)

Sources: Square fees; Helcim pricing; Stripe.ca pricing; Moneris pricing; PayPal CA merchant fees. PayPal is the fifth processor — no Interac column, so it sits below the table rather than inventing a Debit line.

When an invoice plus Interac e-Transfer is enough

You already invoice in Wave, FreshBooks, or QuickBooks. The client is in Canada. They pay by Interac e-Transfer and you mark the invoice paid. There is no tap, no hosted checkout, and no PCI questionnaire because you never touched a card.

That is enough for a lot of Smithville sole props. It is not enough when a stranger wants to tap Visa at the counter, when a website has to take a card, or when a client will only pay on a card-on-file invoice. Then you need a processor — and you still keep the ledger in accounting software.

Do not paste Square’s 0.75% + 7¢ onto an e-Transfer. Do not call e-Transfer “Interac Debit.” The FreshBooks vs Wave page is the invoice comparison; this page is the card rail.

Square Canada — free software, published Interac at the till

Same Canadian fee table this site already cites: in-person credit 2.5%, Interac Debit 0.75% + 7¢, keyed 3.3% + 15¢, online / invoice / Square Online 2.8% + 30¢. Cards issued outside Canada add +1.5% on cards issued outside Canada. Offline session up to 24 hours; Interac does not work offline Standard next-business-day deposits; Instant Transfer 1.5%. Custom rates if you process $250,000 credit-card sales annually (not including Interac debit). Sources: https://squareup.com/ca/en/payments/our-fees, https://squareup.com/ca/en/point-of-sale/pricing.

Square is the usual first box when you want Interac tomorrow and a free POS app. Square Payroll is still not a Canadian product. Staff need a CRA payroll tool. Hardware and till workflow: POS in Canada. Starting path for a sole prop: how to accept credit cards in Canada. Head-to-head rates with Helcim: Square vs Helcim.

Helcim — Calgary-founded, interchange-plus, Interac cents

Helcim’s about page describes a Calgary-founded payments company. Public pricing page: no account monthly fees, no minimums, no statement fees. First band ($0–$50k monthly credit-card volume): Interchange-plus in-person (first volume band $0–$50k): interchange + 0.40% + 8¢ (helcim.com/pricing FAQ, same table as interchange-plus) Keyed and online, same band: interchange + 0.50% + 25¢ Volume bands: $50k–$100k: in-person interchange + 0.35% + 7¢ / keyed+online + 0.45% + 20¢. $100k–$500k: + 0.25% + 7¢ / + 0.35% + 20¢. $500k–$1M: + 0.20% + 6¢ / + 0.25% + 15¢. $1M–$5M: + 0.15% + 6¢ / + 0.15% + 15¢. Helcim’s pricing FAQ (6 September 2026): Interac Debit 9¢, or 12¢ for tap. An earlier retrieve of Helcim’s Canada fee-disclosure page listed Chip & PIN 9.0¢ and Flash/tap 12.5¢ with volume bands that can lower those cents — that legal page was not re-fetched on 6 September 2026. Published Interac figures are Interac debit at a reader — not Interac e-Transfer. Next-business-morning deposits on credit and debit; gross or net settlement Sources: https://www.helcim.com/pricing/, https://www.helcim.com/interchange-plus/, https://legal.helcim.com/ca/fee-disclosures/, https://www.helcim.com/about-us/.

Interchange-plus looks cheaper than 2.9% + 30¢ on a $40 tap. It looks less magic on a premium card keyed online. Helcim publishes the margin; you still need volume and card mix to know the effective rate. Helcim’s own pricing FAQ says that for most merchants the total in-person effective rate is near or below 2%, and keyed/online below 2.5%. That is Helcim marketing, not a published Visa or Mastercard interchange table — this site does not invent a typical Visa rate. Longer write-up: Square vs Helcim for Canadian small businesses.

Stripe Canada — CAD cards online, Terminal Interac in person

CAD on stripe.com/en-ca/pricing (retrieved 7 September 2026): 2.9% + CA$0.30 per successful domestic card transaction. 2.7% + CA$0.05 per successful in-person card transaction (Stripe Terminal, most cards). Stripe Terminal: CA$0.15 per in-person Interac Debit transaction. The 7 September 2026 Stripe.ca pricing page does not list a public online Interac Debit rate — do not treat the Terminal 15¢ as a website-checkout fee. Manually entered cards +0.5%. International cards +0.8%. Currency conversion +2%. Tax charged based on location. No setup or monthly fees on standard pay-as-you-go pricing Instant Payouts 1% (minimum CA$0.60). Standard payouts are listed as free on the same page — Stripe does not print a next-business-day promise there. Stripe’s published Interac product on the pricing page is Terminal Interac debit, not Interac e-Transfer. Source: https://stripe.com/en-ca/pricing.

Stripe is the usual pick when the checkout is a website or an invoice link you embed, not a café till out of the box. Pair it with invoicing software — Stripe is not your GST/HST return.

Moneris — public Flat Rate, Interac in person and online

Flat Rate card-present: 2.65% + $0.10 per successful credit transaction. Flat Rate Interac debit in person: $0.12 per successful debit transaction. Flat Rate card-not-present: 2.85% + $0.30 per successful credit transaction. Flat Rate Interac debit card-not-present: $1.00 per successful debit transaction. Simplified (interchange-plus) pricing exists; the public page does not print a single IC+ margin for every MCC. Incidental fees listed include chargeback $25.00, Moneris Go software $5.00, and a $5.00 minimum merchant discount rate. Moneris markets next-day deposits with BMO and RBC, “even if it’s not a business day” on the public pricing page (vendor copy, retrieved 7 September 2026). Source: https://www.moneris.com/en/pricing.

Those Flat Rate numbers are the public marketing table. A signed merchant agreement can still differ. This page does not invent an interchange-plus margin Moneris did not print. Banks still name Moneris when they hand you a terminal quote — use the Flat Rate table as the public benchmark, then ask.

PayPal Canada — CAD commercial rate, no Interac Debit line

CAD on PayPal’s Canada merchant fees page (page last updated 15 July 2026; retrieved 7 September 2026): 2.90% + CAD $0.30 fixed fee for domestic commercial transactions. QR code transactions CAD $10.01+: 1.90% + fixed fee; CAD $10.00 and below: 2.40% + fixed fee The public Canada merchant fee table does not list a separate Interac debit or Interac e-Transfer rate. Do not invent one. Source: https://www.paypal.com/ca/webapps/mpp/merchant-fees.

PayPal is useful when the buyer already lives in PayPal. It is a poor substitute for tap Interac at a café. Do not paste Square’s 0.75% + 7¢ onto a PayPal invoice.

Online vs in-person

A tap at the counter is not a card typed into a phone, and it is not a Square invoice paid in a browser. Square prints three different card-not-cash numbers (2.5% / 3.3% + 15¢ / 2.8% + 30¢). Stripe prints 2.9% + CA$0.30 per successful domestic card transaction online and 2.7% + CA$0.05 per successful in-person card transaction (Stripe Terminal, most cards) on Terminal. Moneris splits present vs card-not-present. Helcim’s first-band keyed/online margin is higher than in-person. If the sale is a website, start at accept credit cards; if it is a counter, start at POS.

Interac Debit honesty

Interac Debit is the Canadian debit rail at a reader — and, where a vendor says so, a specific online debit path. Square’s online line names Interac Debit via Apple Pay or Google Pay. Moneris prints a $1.00 card-not-present Interac Debit fee. Stripe’s 15¢ is Terminal-only on the 7 September 2026 pricing page. Helcim’s cents are reader Debit. PayPal’s merchant table has no Interac line at all.

Interac e-Transfer is the email or SMS send from a Canadian bank account. It is not in those Interac Debit cells. Rural Ontario still cares that Square says Interac does not work offline.

Payout timing

Square: Standard next-business-day deposits; Instant Transfer 1.5%. Helcim: Next-business-morning deposits on credit and debit; gross or net settlement. Moneris: Moneris markets next-day deposits with BMO and RBC, “even if it’s not a business day” on the public pricing page (vendor copy, retrieved 7 September 2026). Stripe: Instant Payouts 1% (minimum CA$0.60). Standard payouts are listed as free on the same page — Stripe does not print a next-business-day promise there.. Instant or “next morning” is not payroll and not a promise that a hold will release. Confirm the bank on a Canadian account before you treat a marketing sentence as cash in the till.

A practical pick

1. Known Canadian clients, you already invoice: Wave or FreshBooks plus Interac e-Transfer. Stay on invoicing software.
2. Counter or appointments, Interac tomorrow: Square, then read POS in Canada.
3. Same counter, want interchange-plus and a Calgary vendor with public Interac cents: Helcim. Run the numbers on Square vs Helcim — do not invent a typical Visa rate.
4. Website or API checkout, printed CAD card rate: Stripe. Treat Terminal Interac (CA$0.15) as in-person only.
5. Bank-introduced terminal or a quoted merchant account: Moneris Flat Rate as the public benchmark, then ask for Simplified if volume is large.
6. Buyers already pay you in PayPal: keep PayPal. Do not pretend it is Interac tap.
7. First card as a sole prop: how to accept credit cards in Canada. The CAD account those payouts hit is business bank accounts. This page will not invent unpublished rates.