If you’re running a small business in the UK, you already know that the "old school" cash register just doesn't cut it anymore. Between managing stock, tracking sales, and keeping HMRC happy, you need a tool that does more than just hold coins. You need a reliable epos system.
But here’s the catch: the market is flooded with options. From sleek tablets to heavy-duty terminals, choosing the best pos system for your specific shop or cafe can feel like a full-time job in itself. We’ve spent years testing these systems, and we know that what works for a trendy London coffee shop might not work for a boutique in the Cotswolds.
In this guide, we’re going to break down the top 5 contenders for the title of the best pos system in the UK. We’ll look at the pros, the cons, and the real-world costs so you can make an informed decision and get back to what you do best, running your business.
What is an EPOS System and Why Do You Need One?
Before we dive into the comparison, let’s quickly clear up the jargon. You’ll hear "POS" (Point of Sale) and "EPOS" (Electronic Point of Sale) used interchangeably. While they both refer to where the transaction happens, an EPOS system is essentially a POS system on steroids, it’s connected to the internet, stores data in the cloud, and integrates with your accounting and inventory.
If you’re still a bit confused, you can check out our deep dive into what is the difference between pos and epos.
Essentially, a good system helps you:
- Speed up the checkout process.
- Manage inventory in real-time.
- Track staff performance and hours.
- Generate reports for tax and business growth.
Key Factors to Consider Before Buying
Choosing a system isn't just about the cheapest price (though that's important!). You need to consider how you’ll actually use it day-to-day.
- Ease of Use: If it takes three days to train a new staff member, the system is too complex. You want something intuitive.
- Hardware vs. Software: Do you want a dedicated terminal, or do you prefer using an iPad?
- Industry Specifics: A restaurant pos system needs table management and kitchen display features, while a retail pos system needs robust barcode scanning and stock tracking.
- Transaction Fees: Some companies charge a monthly fee, others take a bigger cut of every sale. You need to calculate which model fits your turnover.
The Top 5 EPOS Systems for UK Small Businesses
We’ve narrowed the field down to five heavy hitters. Each of these has a slightly different focus, so pay attention to where your business fits.
1. Epos Now: The Best All-Rounder
We’re going to start with our top pick: Epos Now. Why? Because it’s incredibly versatile. Whether you're running a busy pub or a high-street clothing store, Epos Now offers a level of customisation that’s hard to beat.
We’ve written a very detailed Epos Now review 2026 that goes into the nitty-gritty, but the highlights are the massive 15.6" HD display and the industry-leading inventory management. It’s excellent for businesses with large product catalogues because it lets you track profit margins per item, which is a game-changer for your bottom line.
Pros:
- Highly scalable hardware.
- Award-winning 24/7 support.
- Excellent inventory and reporting tools.
Cons:
- Can have a slightly steeper learning curve than basic tablet apps.
If you want the full breakdown of why we recommend them so highly, definitely take a look at our Epos Now till system review.
2. Square: The King of Flexibility
Square is a household name for a reason. They really pioneered the "plug and play" model. For many small boutiques or market traders, Square is often considered the best pos system because there are no monthly contracts. You just pay for the hardware and a percentage of your sales.
It’s incredibly easy to set up. If you can use a smartphone, you can use Square. However, as your business grows, those transaction fees (usually around 1.75%) can start to bite. It's also worth comparing how they stack up against the competition in our epos now vs sumup vs shopify pos guide.
3. SumUp: The Cheapest EPOS System for Micro-Businesses
If you are just starting out and every penny counts, SumUp pos is likely your best bet. It’s often cited as the cheapest pos system because you can get started with a simple card reader for under £30.
There are no monthly fees, which is perfect for businesses with seasonal or inconsistent sales. However, it is quite basic. If you need advanced features like detailed table mapping or complex multi-location stock transfers, you might find SumUp a bit limiting. It's a great "starter" system, but many businesses eventually migrate to something more robust like the epos now till system.
4. Shopify POS: Best for Multi-Channel Retail
Do you sell online as well as in-person? If so, Shopify POS is probably already on your radar. The main advantage here is that your online store and your physical shop share the same inventory. If you sell a t-shirt in your shop, it automatically updates the stock levels on your website.
It’s a fantastic retail pos system, but it can get expensive once you add in the monthly Shopify subscription plus the POS Pro features. If you're purely a brick-and-mortar business, you might be paying for features you don't actually need.
5. Toast: The Specialist Restaurant POS System
If you run a high-volume eatery, Toast pos is a strong contender. Unlike the others, Toast is built specifically for the hospitality industry. It handles things like split bills, kitchen display systems (KDS), and online ordering with ease.
While it's a powerful restaurant pos system, it’s worth noting that it can be more expensive than general-purpose systems. For a UK-based comparison of hospitality costs, check out our guide on the cheapest pos systems for restaurants.
Comparing the Costs: What Will You Actually Pay?
Pricing in the EPOS world can be intentionally confusing. You usually have to balance three different costs:
- Hardware: The physical screen, drawer, and printer.
- Software: The monthly "licence" fee to use the programme.
- Payment Processing: The percentage taken by the bank/provider on every card tap.
According to data from TechRadar, the average small business can expect to pay anywhere from £0 to £60 per month for software, with hardware bundles starting around £300-£500 for a professional setup.
| System | Monthly Fee | Transaction Fee | Best For |
|---|---|---|---|
| Epos Now | From £25 | From 1.3% | Growing Retail & Hospitality |
| Square | £0 (Free plan) | 1.75% | Small Cafes & Boutiques |
| SumUp | £0 | 1.69% | Market Stalls & Mobile |
| Shopify | From £25 + Sub | Varies | Multi-channel Retail |
| Toast | Varies | Varies | High-volume Restaurants |
For a more in-depth look at the top performer, we highly recommend reading the Epos Now till system review. It breaks down exactly how their pricing structure works for UK businesses.
Which System is Right for You?
Still undecided? Let's simplify it based on your business type.
If you are a Retail Shop…
You need stock management. Look for a system that handles barcodes, variants (size/colour), and purchase orders. We believe Epos Now offers the best balance here, especially for shops with hundreds of SKUs. You can read more about it in our epos now review 2026.
If you are a Cafe or Restaurant…
You need speed and reliability. A system like Toast or Epos Now is designed for the "heat of the kitchen." You want features like "multiple choice products" (e.g., how would you like your steak cooked?). For more on this, see our guide on how to add upsell products in epos now.
If you are a Mobile Trader…
Go with SumUp pos or Square. The portability and lack of monthly fees make these the cheapest pos system options for when you're on the move.
Final Thoughts from What EPOS
Choosing an epos system is a big step, but it’s one that will ultimately save you hours of admin and help you grow your business. Don't just look at the upfront cost; think about where you want your business to be in two or three years.
If you want a system that grows with you, offers incredible UK-based support, and provides the best data insights, we consistently find that Epos Now is the top choice for most UK small businesses. Their hardware is robust, their software is frequently updated, and they understand the UK market better than almost anyone else.
Ready to take the next step?
Check out our full, unbiased Epos Now till system review to see if it's the right fit for your shop or restaurant. It's definitely worth getting a demo and seeing the system in action before you commit.
Good luck with your choice, and if you have any questions, feel free to browse our other reviews!