What Is an EPOS System?
If you have shopped for a till system lately, you will have run into the term EPOS, often without anyone explaining what it actually means. An EPOS system is the modern, digital version of a cash register, but it does far more than ring up a sale. This guide explains what an EPOS system is, what it includes, how it differs from a plain card machine, the main types, and what it costs, so you can work out whether your business needs one.
What is an EPOS system?
An EPOS system is an Electronic Point of Sale: a digital till that combines hardware and software to process sales and run the wider business, from stock to staff to reporting.
Where a traditional till simply records that a sale happened, an EPOS system records the sale and everything around it. It updates stock in real time, logs who served the customer, captures sales data and feeds it all into reports you can actually use. To put the trend in context, the UK point-of-sale market is projected to reach around £1.11 billion by 2030, as more businesses move from basic tills to connected systems.
What does EPOS stand for?
EPOS stands for Electronic Point of Sale. The "point of sale" is simply the moment and place a customer pays, and the "electronic" part is what separates it from a mechanical cash till.
You will sometimes see it written as POS, which means the same thing. The key idea is that it is a digital platform rather than a standalone drawer that just opens and totals up cash.
EPOS system vs a traditional till: what is the difference?
A till records a sale. An EPOS system records the sale and manages stock, staff, customers and reporting around it, acting as the central hub of the business.
| Feature | Traditional till | EPOS system |
|---|---|---|
| Records a sale | Yes | Yes |
| Tracks stock in real time | No | Yes |
| Staff and performance reporting | No | Yes |
| Sales analytics and trends | No | Yes |
| Customer data and loyalty | No | Yes |
| Links to accounting and online sales | No | Yes |
What hardware and software make up an EPOS system?
An EPOS system is a combination of hardware you can see and software doing the work behind it. The software is the brain, the hardware is the interface.
On the hardware side, a typical setup includes a touchscreen terminal, a connected card reader, a receipt printer, and often a cash drawer and barcode scanner. On the software side, the system processes transactions, tracks stock as it sells, manages staff access and shifts, produces sales and performance reports, and can store customer details for a loyalty scheme. It is the software that justifies the upgrade from a till, because that is where the useful business insight lives.
How does an EPOS system work?
At checkout the system pulls the price, calculates the total, takes the payment through a connected card machine and updates everything automatically in the background.
A typical sale runs like this:
- Staff scan the barcode or tap the item on the touchscreen.
- The system pulls up the correct price and product details.
- It calculates the total, including any tax or discount.
- The customer pays by card, contactless or cash through the connected card machine.
- The receipt prints or is sent by email or text.
- Stock levels update in real time and the sale is logged in your reports.
Because the price passes straight from the system to the card machine, there is no manual typing and far less risk of miskeying an amount.
EPOS system vs card machine: are they the same?
No. A card machine takes the payment. An EPOS system runs the whole sale around it, and the two usually connect so the amount transfers automatically.
This is the distinction that trips most people up. The card machine is the device that processes the card. The EPOS system pulls the price, updates the stock, prints the receipt and records the sale, then hands the amount to the card machine to take payment. Many setups integrate the two directly. Importantly, if you already have an EPOS system, you do not have to accept whatever card processing it bundles in. You can often integrate a separate card machine on a better rate, which is well worth checking. Our guide to the best card machine for small businesses and our overview of how to accept card payments cover the options.
What types of EPOS system are there?
The three common formats are countertop, tablet and mobile. The right one depends on your space, your volume and how you serve.
| Type | What it is | Best for |
|---|---|---|
| Countertop | A fixed touchscreen terminal at the till | Established shops and busy counters |
| Tablet | EPOS software running on a tablet | Cafes, restaurants and table service |
| Mobile | An EPOS app on a smartphone with a card reader | Market stalls, pop-ups and sole traders |
What does an EPOS system cost?
Usually three things: a monthly software fee, an upfront or leased hardware cost, and separate card processing fees on every transaction.
Software is typically a monthly subscription, hardware can be bought outright or leased to spread the cost, and then there are the card processing fees, which are a separate matter entirely. Those processing fees are often where businesses quietly overpay, so they are worth comparing in their own right. As a benchmark, debit rates start from around 0.35% and consumer credit from around 0.65%, with PCI around £6 a month. Our guide to card machine fees and our cash vs card breakdown show how the numbers add up.
Does my business need an EPOS system?
Not every business does, but it earns its place once you carry stock, employ staff, or want real data on what is selling. Retail and hospitality benefit most.
A market stall or sole trader may be perfectly served by a simple card reader. A shop, cafe, restaurant or salon with stock to manage and staff to oversee will usually get far more from a connected EPOS system, both in time saved and in the insight it provides. The honest test is whether you are losing time to manual stock counts and guesswork, because that is exactly what an EPOS system removes.
EPOS systems: FAQs
What does EPOS stand for?
Electronic Point of Sale. It is the digital, upgraded version of a traditional till, combining hardware and software to process sales and manage stock, staff and customer data.
What is the difference between an EPOS system and a card machine?
A card machine takes the payment. An EPOS system runs the whole sale around it, pulling prices, updating stock and logging the transaction, and usually connects to a card machine so the amount transfers automatically.
What does an EPOS system include?
Typically a touchscreen terminal, a connected card reader, a receipt printer, and often a cash drawer and barcode scanner, all run by software that handles sales, stock, reporting and loyalty.
How much does an EPOS system cost?
Usually a monthly software fee, an upfront or leased hardware cost, and separate card processing fees. The processing fees are worth comparing, as they are often where businesses overpay.
Do I need an EPOS system for a small business?
Not always, but it helps once you carry stock, have staff, or want real sales data. Retail and hospitality benefit most, while a very small operation may manage with just a card reader.
Can I use my own card machine with an EPOS system?
Often yes. Many EPOS systems integrate with a separate card machine, so you are not locked into the processing rate bundled with the software. It is worth checking whether a better rate is available.
Already have an EPOS system, or planning one? You do not have to accept the card rate it comes with. Get a free, no-obligation statement review and we will show you whether a better-integrated deal is available.
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