Auto repair, where the rate matters more than the per-item.
Large average tickets invert the usual advice: the percentage dominates and the per-transaction fee barely registers. Which puts the whole weight of your cost on how your transactions are qualified.
What this page settles.
Three questions, in the order most people ask them.
Why large tickets change the advice
Most advice written for small businesses assumes a small average sale. Auto repair does not have one. A shop with a $650 average repair order is in a different cost regime entirely, and the usual rules invert.
At $650, a 30¢ per-transaction fee is 0.046% of the sale. You could double it and not notice. Meanwhile every basis point of rate is $0.065 per ticket — so a 0.30% difference in rate is $1.95 on every single job.
So: ignore the per-item, interrogate the percentage. That is nearly the whole of it. And because the percentage you actually pay is decided by how each transaction qualifies rather than by the number on the quote, qualification becomes the thing worth your attention.
Work out your own effective rate — total fees divided by total volume — and compare it to what you were quoted. In this trade the two are often a long way apart, and the gap is where the money is.
Downgrades are the expensive event
A downgrade is a transaction that failed to qualify for the interchange tier it should have, and got priced at a worse one. The surcharge is typically somewhere between 0.5% and 1.2% depending on what went wrong.
On a $40 ticket, a 0.8% downgrade costs 32¢. Annoying. On an $800 ticket it costs $6.40. On a $3,000 transmission job it costs $24.
The common causes in a repair shop, in roughly the order they turn up:
Keyed transactions. A deposit taken over the phone, a card read from a note, a customer paying remotely. All card-not-present, all priced higher, all correct. The problem is when it happens more than you think it does.
Settlement after the window. A batch that closes the next morning instead of the same day pushes transactions past the authorization window. On a shop that closes the till when someone remembers, this can be most of a week. Batch cutoff times.
Commercial cards without supporting data. A business bringing in a fleet vehicle pays with a corporate card. Without the extra data fields, that transaction sits at a much more expensive tier than it needs to. More on this below.
Authorization and settlement amounts that do not match. Authorize $600 on the estimate, settle $740 after the work grows, and you have a mismatch. Re-authorize instead of letting the settlement drift.
A shop running 180 repair orders a month at a $700 average with 20% of transactions downgrading at 0.7% is losing about $176 a month to a problem that is mostly procedural. That is worth an afternoon of attention.
Deposits on parts
Ordering a $900 part for a customer who may not return is the oldest risk in the trade, and a card deposit is the standard answer.
Three practical points:
It will be keyed. Over the phone, the card is not present. Expect the card-not-present rate and the higher per-item. On a $400 deposit the difference is a couple of dollars — irrelevant against the part.
Authorize, do not hold indefinitely. An authorization is good for a limited window, and holding one open for a week of parts delivery does not work. Either settle the deposit as a transaction or take a stored-card authorization with a written agreement. Tokenization.
Write the terms down. Non-refundable deposits on special-order parts are enforceable when the customer agreed in writing and unenforceable when they did not. A line on the estimate, signed, is the difference between winning and losing a dispute. Chargeback reason codes.
Fleet and commercial cards
If you touch commercial vehicles at all, this will come up, and it is routinely glossed over in quotes.
Fleet cards — the branded cards issued for vehicle fleets, with purchase controls and driver prompts — run on their own networks and pricing in some cases, and through the normal card networks in others. The ones that are not standard Visa/Mastercard credit may not be covered by whatever rate you were quoted at all, and the terminal may need to prompt for odometer or vehicle number.
Commercial and corporate cards are standard network cards issued to businesses. They settle normally. They also carry notably higher interchange than consumer cards, and nothing you do changes that — except the data question below.
Two things to ask before signing: how is fleet priced, and does the terminal support the prompts the fleet cards require. A shop that discovers after installation that its reader cannot capture a unit number has a daily problem.
Level 2 data on commercial work
This is the one genuine lever on commercial card cost, and most shops have never been told it exists.
Commercial cards qualify for lower interchange when the transaction carries extra data — for Level 2, typically a tax amount and a customer code. The reduction is real, often in the range of 0.5% to 0.8% on those transactions.
If a reasonable share of your volume is commercial — fleet accounts, dealer work, business customers — this is worth configuring. It requires a gateway or terminal that supports the fields and a process that actually fills them in, which is the part that usually fails. Level 2 and Level 3 data, in full.
If your commercial volume is a handful of tickets a month, the setup effort will outweigh the saving. Work it out before committing to it: count your commercial transactions, multiply by average ticket, multiply by 0.6%.
What to look at on a repair shop quote
Interchange-plus, not flat or tiered. At these ticket sizes and with this card mix, you want to see interchange separately from the markup. Interchange-plus explained.
How downgrades are disclosed. A statement that shows you which transactions downgraded and why is worth more than a slightly lower markup.
The per-transaction ceiling set at underwriting. A shop that occasionally writes a $6,000 invoice needs that approved in advance, not discovered on the day.
Fleet handling, named explicitly.
Level 2 support, if commercial work is a real share of your volume.
Term, early termination and hardware ownership. A leased terminal on a four-year schedule is the most expensive line in a lot of these deals.
What we charge
Interchange + 0.50% + 10¢ in person, interchange + 0.75% + 25¢ keyed, with no contract, no monthly fee and no monthly minimum.
On large-ticket work the markup is the whole conversation, and interchange passed straight through is the only way you can see whether you are being charged it. Send us a statement and we will count your downgrades for you.
While we are on the subject
Why is my rate higher than quoted?
On large tickets the usual cause is qualification — keyed transactions, missing data, late settlement. Each downgrade is a percentage of a big number. See our page on why the bill went up.
Should I take deposits on parts?
Most shops should, and most do it by phone, which is keyed and priced as card-not-present. That cost is trivial next to ordering a part for a customer who disappears.
Do fleet cards cost more?
They are priced on their own schedules and are frequently not what a flat rate covers. Ask specifically how fleet is priced before you sign anything.
Is there a limit on ticket size?
Your processor sets a per-transaction ceiling and a monthly volume ceiling at underwriting. If you take an unusually large job, tell them beforehand rather than having it held.