Card processing pricing is really three fees stacked together
Card processing pricing is really three separate fees stacked into one rate, and only one of them is set by your provider. When a customer taps a credit card, the money you pay to accept it splits three ways: interchange, network assessments, and the processor's markup.
Interchange is the largest piece, and it goes to the bank that issued your customer's card — not to your processor. It is set by the card networks (Visa, Mastercard) in published rate tables, and it varies by card type: a basic debit card costs a fraction of a premium travel-rewards card. No processor can discount interchange; everyone pays the same published rate.
Network assessments are the smaller cut the networks themselves take for running the rails. Like interchange, they are fixed and identical for every processor.
The processor's markup is the only part your provider actually sets — the margin they add on top of interchange and assessments for their service. When two providers quote you different prices, this markup is the entire difference; everything else is pass-through. Knowing this changes how you shop: you are not hunting for a magic low rate, you are comparing markups and the fixed fees bolted on beside them. For exactly where interchange and assessments come from — and why no processor can discount them — see Interchange fees in Canada: how card processing fees really work.
The only number that matters is your effective rate
Your effective rate is the one honest figure for comparing providers: total fees divided by total card volume. It folds every percentage, every per-transaction cent, and every fixed monthly charge into a single number — which is exactly why a salesperson's headline rate can't hide inside it.
Here is the math on a round month:
| Line | Amount |
|---|---|
| Card volume (all cards) | $20,000 |
| Total fees on the statement | $520 |
| Effective rate | 2.6% |
$520 ÷ $20,000 = 0.026, or 2.6%. If the provider that sold you this account advertised "as low as 1.79%," the gap between 1.79% and 2.6% is where the monthly fees, the non-qualified surcharges, and the add-ons are living. The teaser rate was never exactly wrong — it just described one perfect transaction and ignored everything stacked around it. The effective rate can't do that. Compute it every month and you have a single trend line you can actually watch.
The junk-fee taxonomy: what each line actually is
Junk fees are the fixed and semi-hidden charges that don't scale cleanly with your sales — and naming them is how you tell a real cost from padding. Some of these cover something genuine; the problem is opacity and markup, not that the fee exists at all.
- Statement / administration fees — a flat monthly charge just for having the account. Frequently pure margin.
- PCI compliance fee — for the security-compliance program you're enrolled in. This one has a real program behind it.
- PCI non-compliance fee — the sneakier cousin: a monthly penalty charged when you haven't completed your annual compliance questionnaire. It is entirely avoidable — finish the questionnaire and it disappears — yet it quietly runs on many statements for years.
- Terminal rental — the monthly cost of the hardware. Renting a machine can make sense, but the markup over what the device is worth is where rentals get expensive.
- Batch / settlement fees — a small charge each time you close out the day's transactions. Cheap per batch, but every single day.
- Annual fees — a once-a-year lump that's easy to forget between statements.
- Monthly minimum — if your fees don't reach a set floor, you're billed the difference. It punishes slower months.
- Non-qualified surcharges / downgrades — when a transaction doesn't meet the conditions of your quoted tier (a keyed-in card, a rewards card, a missing data field), it's "downgraded" into a pricier bucket. On tiered pricing, this is one of the biggest silent markups.
None of these are illegal or even unusual. The test is simple: can your provider explain each line in plain daylight? A transparent processor has a straight answer for every charge on the page.
Red flags when you're shopping for a processor
The warning signs are less about the headline rate and more about what's built around it. Watch for these:
- "As low as" teaser rates. A rate that describes only your cheapest possible transaction tells you nothing about your effective rate. Ask what the all-in cost looks like on your real card mix.
- Auto-renewing contracts with early-termination fees. A multi-year term that renews itself and charges hundreds to exit is designed to make leaving expensive, not to earn your stay; if you are already locked into one, How to switch payment processors in Canada without downtime walks through your exit rights.
- Long terminal-rental lock-ins. A cheap-sounding monthly rental over a 48-month non-cancellable lease can cost several times the price of the device.
- Quotes that ignore your card mix. If nobody asked whether you take mostly debit or mostly rewards credit, the quote can't be accurate — those cost very different amounts, and flat-fee debit is one of the biggest levers on a small-ticket bill (see Interac fees for merchants: flat fee vs percentage in Canada).
A provider that prices honestly will ask about your volume and your card mix before quoting, and will put the markup and the fixed fees in writing.
How to audit your statement in ten minutes
You can check whether you're being padded in about ten minutes, four steps, no accounting background required.
- Pull two numbers: your total card volume for the month and your total fees. Both are on the statement.
- Compute your effective rate: total fees ÷ total volume. That's your real, all-in cost.
- List the fixed fees: write down every charge that isn't a percentage of sales — statement, PCI, rental, minimums, batch. These are the ones that don't move when your sales do.
- Compare: hold your effective rate and your fixed-fee list against what you were quoted, and against another honest offer. The gaps are your questions.
Want to skip the arithmetic? Try our statement-audit calculator — enter a few numbers and it works out your effective rate for you. Or send us your statement and we'll do a free, line-by-line review within 24 hours, no obligation. For reference, Newdays' standard rates are a 1.5% credit rate on Visa and Mastercard (1.8% on American Express) and a flat Interac fee from 3.9¢ (chip) to 5.9¢ (contactless tap) — standard for every business, with volume pricing available for high-volume merchants.