Why card fees feel worse
Because once a month you get a line about them, in money. You never get such a line about cash. There is no statement anywhere that says “counting the till cost you nine hours this month” — and yet it did.
That doesn't mean cards are cheaper. It means that as long as you only measure one side, your decision isn't based on a comparison. It's based on which cost happens to get invoiced.
| Card | Cash | |
|---|---|---|
| Who invoices it? | Your bank or provider | Nobody |
| When do you see it? | Monthly, on one line | Never, only indirectly |
| How precise is it? | To the penny | You have to estimate |
| When do you have the money? | Typically 1–3 working days | Immediately |
| What's the main risk? | The size of the fee | Differences and security |
Work out your own fee
- 11. Take your last monthly statementYour acquirer (bank or payment provider) sends a summary every month. Two numbers matter: total card turnover for the month, and total charges for the month.
- 22. Divide the charges by the turnoverCharges ÷ card turnover. That is your actual rate — not the headline percentage in the contract, because that one leaves out the terminal rental and any fixed items.
- 33. Look at the fixed charges separatelyIf there is a fixed amount per transaction or a monthly minimum, write it down on its own. The percentage matters on large baskets, the fixed fee on small ones — on a single bread roll a fixed fee can be many times the percentage.
- 44. Apply it to an average basketMonthly card turnover ÷ number of card transactions = your average card basket. Put the fee against that: now you can see, in money, what one real sale costs you.
- 55. Put it next to your marginYou don't pay the fee out of turnover, you pay it out of margin. If your margin is 20% and the fee is 1%, the fee takes a twentieth of your margin. That is the right comparison — not the fee as a share of turnover.
What does cash cost?
Cash has no merchant fee, but it has four items that are real money. None of them gets invoiced, which is why they have to be worked out by hand, once.
| Item | How to estimate it | What to watch |
|---|---|---|
| Counting time | Minutes a day × days × hourly wage | Handing out the opening float counts too |
| Till differences | Total of the month's differences | Only measurable if you close per shift |
| Tied-up float | Average amount kept in the drawer | That money isn't working, it's just sitting there |
| Trip to the bank | Travel plus any deposit charge | The time is often worth more than the fee |
The fourth item is the uncomfortable one: security risk. You cannot put a number on it until something happens — and after that, one incident costs more than a year of fees. We mention it not to frighten you, but because it is routinely left out of the comparison.
Where is the tipping point?
There isn't a single tipping point, but there are two places where the decision genuinely matters.
- 1ON SMALL BASKETS: here the question is the fixed per-transaction fee, not the percentage. If your contract has a fixed item and you have a lot of small sales, a purely percentage-based deal may be meaningfully cheaper — worth asking your provider about.
- 2ON LARGE BASKETS: here the percentage matters, but handling a large amount of cash is more expensive too (more counting, more risk, more frequent trips to the bank).
- 3AT PEAK TIME: a card is faster than counting out change. A minute's difference in a queue is worth more than the fee — but you only know that if you have measured how long the queue is.
What not to do
- Don't add a surcharge for paying by card. EU rules prohibit it for consumer card payments, and your card scheme contract almost certainly rules it out too.
- Don't set a minimum spend without reading your own acquiring contract — many contracts explicitly forbid it, and it reads badly to the customer.
- Don't calculate with an average found online. Your own number comes out of a single statement, and it is usually different.
- Don't leave the terminal rental and monthly minimum out of the sum: that is what turns “0.8%” into one and a half.
- Don't decide on one month. The card share moves seasonally — look at three months at least.
- Don't compare the fee to turnover. Compare it to margin: that is what pays it.
The monthly ten minutes
Once you have worked it out, ten minutes a month keeps it current. Look at the card share (card turnover ÷ total turnover), the actual fee rate, and the monthly total of till differences. If any of them moves meaningfully, there is something to look at: your customer mix shifted, your pricing changed, or something is slipping around shift close.
In summary
- Card costs are visible and cash costs are not — which is not the same as cash being free.
- Your own fee rate comes from one monthly statement: charges ÷ card turnover.
- Compare the fee to your margin, not to your turnover.
- Cash costs: time, differences, tied-up float, trips to the bank — plus risk.
- Fixed fees matter on small baskets, percentages on large ones.
- Never surcharge, and only set a minimum if your own contract allows it.
Frequently asked questions
What does accepting cards cost a small shop?
There is no general answer: it differs by bank, by card type and by contract, and it changes over time. Here is how to get yours: take the total charges on your last monthly statement and divide them by that month's card turnover. That number is yours — an average read in an article is not.
Is cash really cheaper?
Not automatically. Cash has no merchant fee, but it has four real costs: the time spent counting, till differences, the money tied up as float, and the trip to the bank. None of them gets invoiced, which is why they drop out of the comparison — they are still money.
Can I add a surcharge for card payments?
For consumer card payments EU rules prohibit it, and card scheme contracts generally rule it out as well. So the practical answer is no. For the details of your own contract, ask your provider.
Can I set a minimum spend for card payments?
That depends on your acquiring contract — many explicitly forbid it. Read yours before you put up a sign. And weigh the other side too: a minimum mostly keeps away the customer who was only popping in for one thing.
When do I get the money from card payments?
Typically one to three working days, depending on your provider. That isn't a cost, it's timing — but it matters to your day-to-day cash flow, especially if you pay suppliers in cash.
How do I find out my card share?
From shift close: if the close asks for cash and card takings separately, the split assembles itself. If you only record one daily total, that number doesn't exist — and without it this article can't be applied to your shop.
Is a terminal worth it in a low-turnover shop?
Do the sum this way: how many sales' worth of margin does the monthly terminal cost (rental plus minimum) take? Then estimate how many customers leave when there is no card option. You can't measure the second number, only estimate it — but leaving it out is the biggest mistake, because a lost customer leaves no trace anywhere.
See how much came in as cash and how much on card, every shift.
Boltom App asks for cash and card takings separately at every shift close, and works out the difference. Those two numbers are what make this article applicable to your shop at all.
- Cash and card separately at shift close — not one daily total.
- The difference belongs to a shift and a person, not to the whole day.
- The monthly report shows how the split moves from month to month.
No card needed · 2 minutes
