Nobody quotes you the number you actually pay. A processor quotes a rate, your statement charges a cost, and the two are rarely the same figure. The gap between them is where the money goes. The good news: the real number is already sitting in your own paperwork, it takes three figures and one division to find, and once you have it no sales sheet can confuse you again.
The only number that counts
Your effective rate is every fee the processor took, divided by every card dollar you ran, for the same month. Not the rate on the first page. Not the rate in the e-mail. All the fees, over all the volume.
total fees ÷ total card volume × 100 = your effective rate
- Total card volume — every card dollar that month. Every brand, card-present and online, tips included.
- Total fees — every charge the processor took, not only the lines labelled “discount”. Per-item fees, monthly fees, PCI fees, gateway fees, batch fees, dispute fees, the lot.
Do it for three months in a row, not one. A single month with one unusually large sale, or one dispute, will not tell you the truth. Then divide total fees by your transaction count as well — that gives you cost per transaction, which is the number that actually matters if your average ticket is small.
The effective-rate checker on our payments page does both calculations for you. It works only on figures you type in, in your own browser — it has no numbers of its own and it keeps nothing.
Where the money hides
Every merchant statement, whoever it comes from, is made of four kinds of line. Sorting the lines into these four piles is most of the work.
The four kinds of line on a merchant statement
Charged as a percentage of what you ran. Interchange is set by the card networks and passed through, and it changes with the card your customer hands over and how it is taken — a keyed-in number is not priced like a tap.
A fixed amount per sale. A few cents is a rounding error on a big ticket and a real percentage on a small one. If you sell coffee, these matter more than your rate does.
These arrive in a month you sold nothing. They are still part of your effective rate, whatever the sales sheet calls them.
Easy to miss because they are not on every statement — which is exactly why they are worth reading when they are.
Two of these deserve a closer look.
The monthly lines nobody adds up
Statement fee, account or service fee, monthly minimum, PCI compliance fee, PCI non-compliance fee, gateway or platform fee, terminal rental or lease, equipment protection, annual fee, and whatever is currently wearing an impressive regulatory-sounding name. Individually they look like nothing. Add them together, divide by your volume, and they are part of your rate.
The PCI pair is worth asking about by name: there is usually a fee for being compliant and a larger one for leaving the self-assessment questionnaire undone. Ask who fills yours in, and what happens if nobody does.
Refunds and disputes
When you refund a customer, you may or may not get the processing fee back — ask, because the answer differs by provider and it is almost never volunteered. Disputes carry their own fee, win or lose, and some providers also charge for the retrieval request that comes before one.
The three ways you can be priced
- Flat rate. One advertised figure for everything, or a couple of figures split by channel. Simple to read and simple to budget. You pay the same whether the customer hands you a basic debit card or a premium rewards card.
- Interchange-plus. The card network’s own cost passed straight through, plus a markup that is stated separately. The statement takes longer to read, and it is the only model where you can actually see what the processor is keeping.
- Tiered. A quoted “qualified” rate, with mid-qualified and non-qualified buckets above it. The rate you were sold applies only to the transactions that land in the bottom bucket, and which ones do is decided by rules you did not write and cannot see. If your statement has tiers, the headline rate is a best case, not a price.
Five minutes with a highlighter
- Find the summary page — usually the first or the last. Write down total volume, total fees and transaction count.
- Divide. Fees ÷ volume is your effective rate. Fees ÷ transactions is your cost per sale.
- Highlight every charge that would still appear in a month you sold nothing. That is your fixed cost of taking cards.
- Highlight anything you cannot name. A fee you cannot explain is a fee nobody has ever had to justify to you.
- Do all of that for three months and compare the three effective rates. Big swings between months usually mean tiers, or a card mix nobody mentioned.
Questions worth asking in writing
- What is my effective rate for the last three months, worked out from my own statements?
- Which of my fees move with volume, and which are fixed?
- Who completes my PCI self-assessment, what is the compliance fee, and what is the non-compliance fee?
- Is my hardware sold, rented or leased — and who holds the lease?
- Is the terminal locked to you, or can it be re-keyed if I ever leave?
- What is the term, and what does leaving early cost me?
- When I refund a customer, do I get the processing fee back?
- Is there a monthly minimum, and am I clearing it?
Before you move anything
A lower rate is only a saving if it survives the switch. Moving a merchant account means fresh underwriting, a terminal reprogrammed or replaced, the register re-pointed and re-tested, a new PCI attestation, and a cutover day with two statements in it. We wrote the whole sequence down — what switching processors actually involves — so you can count that work against the saving instead of against zero.
Surcharge and cash-discount programs change the arithmetic as well, and they carry card-brand rules and state law with them. Both change. Confirm what applies to your business before you switch one on, not after.
How we read a statement
Bring the whole thing, not the first page. Piets Technology Solutions will go through every line with you, work the effective rate out of your own three months, and say plainly where the money is going. If you are already in a good deal, we will tell you that — it is a shorter conversation and an honest one.
You will notice we do not publish a rate on this page. A rate without your volume, your average ticket and your card mix is a number pulled out of the air, and you have had enough of those. Give us three statements and you get real arithmetic on your own figures.
Call or text 631-871-5957, or start with the effective-rate checker and see the number for yourself first. Questions? We're here 24/7.
Piets Technology Solutions
Low-voltage tech for homes and small businesses — cameras, Wi-Fi, cabling, POS, phones and 24/7 support across Long Island, NYC, the Hudson Valley and the Capital Region. Wi-Fi, Wires, Whatever — Piet Makes It Better