Nobody opened a repair shop to think about payment processing. It is one of those costs that shows up as one line on a statement you scan for two seconds before filing.
That is exactly why it is worth a look. It is the kind of expense that grows quietly, because the person selling it to you knows you are busy.
The rate you were quoted is not the rate you pay
Somebody quoted you a number. Maybe two and a nine tenths percent. Maybe a flat rate that sounded clean.
Then the statement has other things on it. A monthly account fee. A PCI compliance fee. A statement fee. Downgrades when a customer pays with a business card or a rewards card, which in a repair shop is a lot of customers. A gateway fee if you take payment online or over the phone.
Add all of it up, divide by what you ran, and you get your effective rate. That is the real one. For a lot of shops it lands well north of what they think they are paying.
Work out what cards really cost you
Pull one monthly statement from your processor and put the real numbers in. Not the rate on the sales sheet. The rate you actually paid, which is almost never the same thing.
Your numbers
What that means
Month 1: $1,380. By Month 12: $16,560.
A 0.40% difference in rate is worth $2,160 a year. That is one phone call to your processor.
Small ticket businesses get hurt by the per-transaction fee, not the percent. If your average sale is under $25, that 30 cents is the real enemy.
What this assumed
- Assumes a single blended rate. Real statements mix interchange, assessments and processor margin.
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This is an estimate
This tool returns an estimate based on the numbers you entered. Your real result depends on your own costs, rates and conditions. Check it against your own records before you make a decision with it.
How to run it, step by step
- 1Use the effective rate, not the quoted rate. Take total fees for the month and divide by total card volume for the month. That percentage is your effective rate and it is the only one that matters. It is usually higher than what you were quoted.
- 2Enter a normal month of card volume. Not your slowest and not December. Pick an ordinary month so the annual figure is not built on an outlier.
- 3Add the per-transaction fee. The flat cents on every swipe. It looks trivial and it is not, because a shop that runs a lot of small parts and diagnostic tickets pays it far more often than a shop doing big jobs.
- 4Run it again at a lower rate. Put in a rate half a point lower and look at the annual difference. That is your negotiating range, and now you know what the conversation with your processor is worth.
How to read what it gives you
- The annual number is what you are paying for the convenience of getting paid. Some of that is unavoidable. The question is how much of it is.
- Compare the annual fee number to one tech's monthly pay. When people see that comparison they stop treating processing as a rounding error.
- If your effective rate is more than about half a point above your quoted rate, something is being added on top. That gap is the first thing to ask your processor about, in writing.
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What to do once you know
Ask for the interchange breakdown in writing. Not a phone call. Writing. You want to see the base interchange versus the markup your processor is adding. A processor who will not put that in an email is telling you something.
Take the annual number to a competitor. Not to switch necessarily. To find out what the market rate is for a shop your size in your area. Processing is one of the few costs where the quote genuinely does drop when you show them you have been shopping.
Look at ticket mix before you blame the rate. If you run a lot of small transactions, the flat per-swipe fee may be doing more damage than the percentage. That is a different fix. Batching small parts sales onto the repair order instead of ringing them separately can matter more than a quarter point.
Check the terminal lease. If you are leasing hardware on a multi-year agreement, that is often the single worst line in the whole arrangement. Terminals are cheap to buy outright now.
The part that is not about fees
While you have the statement out, look at how long it takes you to get paid on the work you do not run a card for. Fleet accounts, insurance work, the customer who says they will square up Friday.
Card fees are a known cost you can negotiate. Unpaid invoices are an unknown cost you cannot, and in most shops they are the bigger number. There is a calculator for that one too, written for contractors but the math is identical for a shop.
One honest caveat
I do not sell payment processing and I am not going to tell you what your rate should be, because it depends on your card mix, your ticket size and your volume, and anybody who quotes you a target rate without asking about those three things is selling something.
Run your own number. Then go ask hard questions with it in your hand.
Questions people actually ask
Can I just charge customers a card fee?
Surcharging is allowed in many places and prohibited or capped in others, and the card networks have their own rules on top of state law. Check your state and your merchant agreement before you post a sign. A cash discount is structured differently from a card surcharge and the difference matters legally.
Why is my effective rate higher than what I was quoted?
Usually a mix of downgrades on business and rewards cards, monthly account fees, statement fees, PCI fees and gateway fees spread across your volume. The quoted rate is the best case for one card type. The effective rate is what actually happened.
Is interchange plus better than flat rate?
For most shops with steady volume, interchange plus is more transparent because you can see the markup. Flat rate is simpler and can be fine at low volume. Run your own numbers on both rather than trusting either sales pitch.
Does this change if I take a lot of fleet cards?
Yes. Fleet and commercial cards often carry different interchange, which is one of the most common reasons a shop's effective rate drifts up. If a big share of your work is fleet, ask your processor specifically how those transactions are priced.