The short answer: card fees are a price, not a principle. Processing costs roughly 2.5 to 3 percent, so the fee scales with the invoice while the convenience stays flat. That makes a card obviously worth it on a small service call and hard to justify on a five-figure renovation. Decide once where your crossover point sits, then stop re-deciding job by job.
The client is standing in her finished basement with her card out, and the invoice on your phone says $18,400. You take the payment, it approves, everyone shakes hands. Sometime in the next two days, a payment processor quietly keeps about $534 of it.
Five hundred and thirty-four dollars. That is a full day of a helper's wages with the payroll costs on top. It is the dump fees and the touch-up materials for the entire job. On plenty of renovation quotes it is a visible slice of the profit, spent in exchange for not waiting a few days for a bank transfer that would have cost nothing.
None of this means cards are bad. It means cards are a service with a price, and most contractors have never actually priced it. They either refuse cards entirely and lose the occasional client over it, or take cards on everything and donate two or three points of margin without ever deciding to. Both are the same mistake: skipping the math.
So here is the math.
What does a card payment actually cost?
Small-business card processing in Canada and the US generally lands somewhere between 2.5% and 3% per transaction once everything is counted. Flat-rate processors advertise a clean number (commonly around 2.9% plus a fixed few cents) while traditional merchant accounts advertise lower rates that grow assorted monthly fees around them. For a one-truck operation, the flat rate is usually the honest comparison, so use 2.9% as your working figure.
Now put it against real invoices:
- A $450 service call costs about $13 to run on a card. That is a coffee run. If the card means you leave the driveway paid instead of chasing a check, it is the best $13 you spend that day.
- A $4,800 bathroom refresh costs about $139.
- An $18,000 renovation invoice costs about $522. And the effort of accepting it was identical to the $450 tap.
That is the thing to internalize: the fee is a percentage, but the value of the convenience is roughly flat. Taking a card is worth something like "not chasing this payment for two weeks." That is easily worth $13. It is very hard to argue it is worth $522.
Two smaller costs ride along. Keyed-in and emailed payments usually cost more than tapped-in-person ones, because the fraud risk is higher. And card payments can be disputed: a chargeback on a $9,000 invoice is rare, but it exists in a way a deposited bank transfer simply does not.
The job profitability calculator shows whether a finished job made the profit you priced it to make.
Who should absorb the fee?
You have three options, and only two of them are honest.
Price it in. Treat card fees as overhead, like fuel and insurance, and let your rates carry them. This is the cleanest option for service work, where invoices are small and cards are common. If a third of your revenue arrives by card at 2.9%, that is about 1% of total revenue, a number your pricing can absorb without ceremony.
Surcharge it. Adding the fee to card-paying clients is legal in much of Canada and the US now, but the rules are genuinely messy. Card networks cap the surcharge and require disclosure, some provinces and states restrict or prohibit it, and the rules keep shifting. If you go this way, check what applies where you work before you print it on anything. Then weigh the optics separately: a $13 surcharge on a service call reads as nickel-and-diming to a homeowner, in a way that "we take e-transfer or card, whichever suits you" never does.
Silently eat it while resenting it is the third option, and it is where most contractors actually live. Skip it.
The practical middle path most small crews settle on: fees priced into the rates, cards welcomed without comment on small invoices, and bank transfer actively steered on the big ones. Which brings us to how to steer.
Float: what speed is worth, in dollars
The real argument for cards is speed. Card money typically lands in your account within one or two business days. A mailed check is a week in the mail, a trip to the bank, and possibly a hold on top: call it two weeks door to door. If you need that money to buy materials for the next job, two weeks matters.
But price the speed honestly. Say the $18,000 client would otherwise pay by transfer within two weeks. Running the card costs $522. Borrowing the same $18,000 on a line of credit at 9% for those two weeks costs about $62. The card is the same float at roughly eight times the price. Stretch 2.9% over a two-week wait and you are paying the equivalent of about 75% annual interest for the privilege of not waiting.
When the card wins anyway:
- The alternative is not "transfer in two weeks" but "chase them for six." Certainty is worth more than settlement speed. A client with a card out is a client who is paying now, and now has no dispute, no drift, no follow-up calls.
- The invoice is small. Below about a thousand dollars, the fee is noise and the finality is everything.
- You are standing there. Closing out payment on site, while the work is fresh and the client is happy, has a value the percentage does not capture.
When it loses: any large invoice where the client is reliable and a transfer is genuinely easy for them. On a five-figure invoice, "I'll send it tonight" costs you nothing, and the card costs you a day's wages.
The alternatives, country by country
Canada: Interac e-transfer. Near-instant, effectively free, and homeowners already use it for everything. The catch is limits. Many banks cap daily sends somewhere in the low thousands, so an $18,000 invoice may need to arrive in pieces across a few days, or as a bank draft or direct deposit instead. For deposits and mid-size invoices, it is close to perfect.
United States: ACH, Zelle, and checks. ACH transfers are cheap or free but take a few business days and are unfamiliar to some homeowners. Zelle is instant and free where both banks support it, with daily limits that vary. Checks remain completely normal in US residential work; just budget the mail-and-hold time into your planning.
Australia and New Zealand: bank transfer is the default. Paying an invoice by direct transfer is ordinary consumer behavior, and fast-payment rails make it near-instant. Cards matter less here; keep them for the clients who insist.
The pattern across all four countries is the same: there is always a low-cost rail, and the clients most likely to use it are the ones you actually ask.
"Whatever's easiest for you: card works, or e-transfer if you'd rather. On an invoice this size the card companies take about five hundred dollars of it, so I'll admit the transfer is my favorite. The details are right on the invoice."
That script does three things. It says yes to the card first, so nobody feels squeezed. It names the real number, which most homeowners have never once considered and which instantly recruits them to your side. And it makes the cheap option the easy option by putting the details already in their hands.
A decision framework by invoice size
Under about $1,000: take the card, every time. The fee is single digits to low tens of dollars, and getting paid before your van leaves the curb is worth more than that. Price it into your rates and never mention it again.
$1,000 to $10,000: offer both, steer gently. Take the card without complaint, but put your transfer details on every invoice and use the script above. A decent share of clients will happily use the free rail once it is made effortless.
$10,000 and up: structure for transfer. Big jobs should already be broken into a deposit and staged payments, and each of those payments should be quoted with bank transfer as the expected method. A client who agrees at signing that payments come by transfer is not a client you have to convince at the end. Keep the card as a genuine fallback (a stuck payment made by card beats a perfect payment that never lands). If you surcharge, do it lawfully and say so up front, never as a surprise line item.
The rule underneath the framework: the fee is a percentage and the convenience is flat, so cards get more attractive as invoices get smaller. Pick your own crossover point once, and stop re-deciding job by job.
Record the payment, whatever it was
Where Zeus fits into this is deliberately narrow: it sits on the record, not on the rail. The invoice goes out as a document with your own payment details printed on it, and every payment you receive, by any method, gets recorded against the invoice it belongs to. Card run on your own reader, e-transfer, check, cash in an envelope: all recorded and dated. Each one is set against deposits, partial payments, or a payment schedule, so the invoice always shows exactly what is still outstanding.
That separation is the point. Which rails you offer, which processor you use, and who eats the fee are pricing decisions, and they stay yours. The record of who paid what, when, on which job: that part should never depend on which rail the money rode in on.
Frequently asked questions
Is it unprofessional to not take cards at all?
Not if the alternative is effortless. "We take e-transfer, the details are on the invoice" is a complete answer in Canada, and bank transfer plus checks covers most US residential work. What actually reads as unprofessional is friction: a client who wants to pay and cannot figure out how. If refusing cards ever costs you a job, it will be a small one. And small invoices are exactly where cards are cheapest, which is a reason to reconsider rather than dig in.
Should I add a card surcharge?
Only after checking the rules for your province or state and your processor's card-network requirements: caps, disclosure rules, and outright bans all exist and they vary. Then weigh whether it is worth the conversation. Most small operations get a better result pricing the average fee into their rates and steering large invoices to transfer than they get from a surcharge line that turns every checkout into a negotiation.
What about chargebacks?
Rare in trades work, but real. Your protection is the same evidence discipline that protects you everywhere else: a signed quote, photos of the completed work, and a clean invoice trail. A deposited transfer or cleared check cannot be yanked back the way a disputed card payment can: one more quiet argument for moving the largest payments onto bank rails.
A new processor is holding my money. Is that normal?
Unfortunately, yes. New merchant accounts that suddenly run a large transaction often trigger a review hold, sometimes lasting days or weeks. If your first-ever card payment is going to be a five-figure invoice, that is the worst possible test run. Warm the account up on small transactions first, or keep the big payment on a bank transfer.
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