Merchants use "surcharge," "convenience fee," and "service fee" interchangeably. The card networks do not. Each is a distinct construct with its own eligibility rules — and picking the wrong one is a compliance violation, not a pricing choice. Worse, the construct most merchants reach for (the convenience fee) is one most merchants aren't eligible to charge at all.
Surcharge, convenience fee, service fee: the three-way split
| Construct | What it is | Who can use it |
|---|---|---|
| Surcharge | A fee added because the customer paid by credit card — not charged if they pay another way | Merchants generally; capped (Canada ~2.4%, Visa 3% brand cap); debit never surchargeable |
| Convenience fee | A fee for the convenience of an alternative payment channel (e.g., paying online vs in person), charged regardless of tender type | Mostly pre-certified government & education entities under network programs |
| Service fee | Network-defined fee for specific eligible categories | Eligible merchants under payment-card-network-operator rules — verify with your processor |
The definitional test from Mastercard's own FAQ: a surcharge is any fee charged in connection with a transaction that is not charged if another payment method is used. A fee imposed on all like transactions regardless of payment form — cash, cheque, card alike — is deemed a convenience fee. If only card customers pay it, it's a surcharge no matter what you call it.
Who can actually charge a convenience fee in Canada
Here's the part that surprises merchants: Mastercard's convenience fee program is restricted to participating pre-certified government and education entities (or their third-party agents). A retail store, restaurant, or trades business is not eligible — full stop.
Canada's financial consumer agency confirms the broader frame: certain payment-card-network-operator rules allow eligible merchants to charge service or convenience fees for certain transaction types, and eligibility must be verified with your payment processor. "Eligible" is doing heavy lifting in that sentence — for most ordinary businesses, the answer is no.
The math that tempts merchants: on a $100 sale, a 2.4% surcharge (Canada cap) adds $2.40 for card customers; cash customers pay $100. A convenience fee on an online-only channel might be a flat 2% ($2.00) for everyone using that channel. Real merchants do pass costs through — lumber dealers report charging 2% on charge-account card payments and 3% processing fees "with really no complaints" (LBM Journal readers), and one brewpub owner added 1.75% + 20¢ per transaction after paying $40,000 a year in processing fees (MoneyWise). But the construct has to match the rules: calling a card-only fee a "convenience fee" doesn't make it one.
The choose-one rule: convenience fee or surcharge, never both
The single most violated rule: a merchant that surcharges credit transactions may not also assess a convenience fee on those transactions. Mastercard states it explicitly; Canada's FCAC states it generally — merchants who charge service/convenience fees for credit or debit payments are not allowed to surcharge.
This is where businesses get creative and get caught: a "service fee" on every transaction plus a card surcharge, or a convenience fee at checkout plus a surcharge line. Pick one construct, document why it fits, and apply it consistently. Layering them is the fastest route to a compliance complaint.
What compliance looks like: disclosure duties
- Disclose before the transaction completes. The fee must be clearly disclosed upfront — not discovered on the receipt.
- Show it as a separate line item. The surcharge or fee amount must appear distinctly on the receipt, identified as imposed by the merchant.
- Give the customer an out. Cardholders must be able to cancel without penalty and pay by an alternative method (debit, cash) before authorizing.
- Respect the caps. Surcharges may not exceed your cost of acceptance or the brand cap — whichever is lower. Flat-amount surcharges are risky on small tickets, where a fixed fee can exceed the cap.
- Verify eligibility in writing. If you believe you qualify for convenience or service fees, get the confirmation from your processor — not your own reading of the rules.
A note on steps: this is a fee explainer with a compliance checklist, not a repair procedure — the numbered duties above are the actionable part. The specific disclosure wording should be confirmed with your processor and, for larger programs, legal counsel.
FAQ
Can I just call my surcharge a "convenience fee"?
No. The networks define the constructs by behavior, not by label. If the fee applies only to card payments, it's a surcharge regardless of what you name it — and it's judged against surcharge rules.
Can I charge a convenience fee and offer a cash discount?
Cash discounts (discounts for non-card payment) are permitted under Canada's Code of Conduct. But you can't combine a surcharge with a convenience fee for the same transaction — choose one pricing construct.
What do customers think of these fees?
Poorly, when surprised. One widely-shared customer complaint noted restaurants "tacking on a 3 to 5% credit card surcharge, often without clearly telling you until the receipt" (Reddit r/unpopularopinion, via Sleft Payments). Disclosure isn't just compliance — it's the difference between a fee and a betrayal.