Let's be honest, choosing a POS system for your UK small business can feel overwhelming. You've probably stumbled across SumUp, Epos Now, and Shopify POS in your research, and now you're wondering which one actually deserves your money (and your trust).
Here's the thing: there's no single "best" system. Each of these platforms excels in different scenarios, and picking the wrong one could mean paying for features you'll never use or, worse, missing out on functionality you desperately need.
So let's cut through the marketing fluff and figure out which POS system actually works for your business in 2026.
The Quick Verdict
Before we dive deep, here's the TL;DR version:
SumUp POS is brilliant if you're running a mobile business, pop-up shop, or food stall. It's simple, affordable, and gets you up and running in minutes.
Epos Now is the winner for established retail shops, restaurants, and multi-location businesses that need proper inventory management and reporting. It's the most comprehensive option here.
Shopify POS only makes sense if you're already running a Shopify online store and want seamless integration between your physical and digital operations.
Got it? Good. Now let's break down why.
SumUp POS: Simple, Mobile, and Zero Monthly Fees
SumUp has made quite a name for itself as the go-to option for market traders, mobile businesses, and anyone who needs to take payments on the move. And to be fair, it does that job brilliantly.
What Makes SumUp Stand Out
The beauty of SumUp is its simplicity. You can be taking payments within 10 minutes of opening the box. There's no complicated setup, no lengthy contracts, and, here's the kicker, no monthly fees whatsoever.
You pay 2.75% per transaction for in-person payments, and that's it. For a small coffee stall at a farmers market or a mobile beauty therapist, that's a pretty sweet deal. According to Capterra, SumUp enjoys a 90% user satisfaction rating, which is genuinely excellent.
The hardware is affordable too. Their card readers are portable, accept chip and pin, contactless, and mobile payments. Everything you'd expect from a modern payment system.
Where SumUp Falls Short
Here's where it gets tricky. SumUp is basic. If you're running anything more complex than a simple sales operation, you'll hit its limitations pretty quickly.
The inventory management is rudimentary at best. There's limited multi-site support, so forget about managing multiple locations from a central dashboard. And if you need detailed reporting, purchase order management, or staff scheduling? You're out of luck.
It's a brilliant entry-level solution, but it's not built for growth. If you're planning to expand beyond a single location or need sophisticated stock control, you'll outgrow SumUp faster than you think.
Epos Now: The Heavyweight Champion for Serious Businesses
Right, let's talk about Epos Now. This is where things get interesting if you're running a proper retail or hospitality operation.
Why Epos Now Dominates for Growing Businesses
Epos Now isn't messing around. It's built for businesses that need actual functionality, not just basic payment processing. We're talking robust inventory management, multi-location support, detailed reporting, and customizable dashboards that actually tell you what's happening in your business.
The back-office system is award-winning for a reason. You can track stock across multiple locations, set up automatic reordering, manage suppliers, create detailed reports, and even integrate with accounting software like Xero and Sage.
For restaurants, there's table management, kitchen display systems, and menu customization. For retailers, there's barcode scanning, customer loyalty programs, and advanced stock control. It's properly comprehensive stuff.
The hardware bundles are affordable too, packages start from around £399, which is competitive considering what you're getting. And the system is genuinely cloud-based, so you can check your sales and stock levels from anywhere.
We've written a detailed Epos Now review if you want to dig deeper into the features and pricing.
The Epos Now Trade-Offs
Nothing's perfect, and Epos Now isn't an exception. The main sticking point is contracts. You're typically locked into 1-3 year agreements, which isn't ideal if you like flexibility.
There are also add-on fees for certain advanced features. The base system is solid, but if you want specific integrations or premium support, those costs can add up. It's worth getting a proper quote so you know exactly what you're paying.
That said, user satisfaction sits around 74%, which is decent if not spectacular. Most complaints center around customer support response times rather than the actual software, which tells you the system itself works well.
Shopify POS: Only for Shopify Store Owners
Let's be clear about Shopify POS from the start: this is not a standalone solution. It's designed specifically for businesses that already run a Shopify online store.
When Shopify POS Makes Perfect Sense
If you're already on Shopify and want to add a physical retail presence, Shopify POS is absolutely brilliant. The integration between your online store and physical till is seamless, probably the best ecommerce-to-POS integration available in 2026.
Your inventory syncs automatically across both channels. Customer data flows between online and offline. And you manage everything from a single dashboard. For omnichannel retail, it's genuinely impressive.
The inventory management is standard (better than SumUp, not as robust as Epos Now), and it handles the basics well enough for most small to medium retailers.
Why Most Businesses Should Skip It
Here's the problem: you must pay for a Shopify subscription on top of the POS plan. Even if you're only using the physical POS system, you're paying for the full ecommerce platform.
That makes it significantly more expensive than alternatives unless you're actually using both the online store and physical till. And if you don't have a Shopify store, you'd be mad to choose this over dedicated POS systems like Epos Now or even SumUp.
The Pricing Reality Check
Let's talk money, because that's what actually matters.
SumUp charges 2.75% per transaction with zero monthly fees. Simple and transparent. Great for low-volume businesses, but those transaction fees add up quickly if you're doing serious revenue.
Epos Now uses contract-based pricing with upfront hardware costs and monthly software fees. The exact price depends on your business type and features needed, but you're looking at affordable hardware bundles from £399 plus monthly subscription costs. Yes, there's a commitment, but you get proper business software in return. Check current Epos Now pricing for specific quotes.
Shopify POS requires a Shopify subscription (starting around £29/month for Basic) plus POS fees. Unless you're using the online store, it's poor value.
Which System Should You Actually Choose?
Let's make this dead simple.
Choose SumUp if:
- You're a startup, sole trader, or market stall operator
- You run a mobile business or pop-up shop
- You need simplicity above everything else
- You have straightforward payment needs
- You want zero monthly commitments
Choose Epos Now if:
- You run a proper retail shop or restaurant
- You have (or plan to have) multiple locations
- You need sophisticated inventory management
- You want detailed reporting and business insights
- You're serious about growth and professional systems
The best POS systems for UK businesses really do depend on your specific situation, but Epos Now consistently ranks at the top for established businesses.
Choose Shopify POS if:
- You already run a Shopify online store
- You need seamless omnichannel integration
- You want unified inventory and customer management
That's it. That's the decision tree.
Final Thoughts
Look, in 2026, you've got solid options regardless of your business size. SumUp has democratized payment processing for tiny businesses. Shopify POS has made omnichannel retail accessible. And Epos Now continues to provide professional-grade systems for growing businesses.
But here's my honest take: if you're running anything more than a basic mobile operation, Epos Now is worth the investment. Yes, it costs more upfront. Yes, there are contracts involved. But you're getting a system that'll grow with your business instead of one you'll outgrow in six months.
For restaurants specifically, we've covered the cheapest POS systems for restaurants in another guide, which might help if you're in hospitality.
The smartest move? Get demos of both SumUp and Epos Now, see them in action, and make your decision based on actual hands-on experience rather than just spec sheets. Your business deserves a POS system that works for you, not one that holds you back.