Choosing the right point of sale (POS) system for your business can feel like a bit of a minefield. Whether you’re just starting out or you’re looking to upgrade an ageing till, the sheer amount of choice in 2026 is enough to make anyone’s head spin.
We’ve seen so many business owners get stuck with a system that doesn't quite fit their needs, simply because they didn't know what to look for at the start. It’s not just about taking payments anymore; the best POS system should act as the brain of your entire operation.
At What EPOS, we’ve spent years testing everything from the cheapest POS systems for restaurants to high-end enterprise retail setups. To help you avoid a costly mistake, we’ve put together the 10 most important things you need to know before you sign on the dotted line.
1. Industry-Specific Features Are a Game Changer
One of the biggest mistakes we see is a business owner buying a "generic" POS system. While some systems claim to do everything, a restaurant POS system needs vastly different features compared to a retail POS system.
If you're running a busy bistro, you need table management, split billing, and kitchen display integrations. If you’re in retail, you’re likely more focused on stock levels, barcode scanning, and perhaps an e-commerce sync.
For instance, if you’re a Shopify user online, the Shopify POS review shows how seamless it is to merge your worlds. However, for a dedicated hospitality powerhouse, we often suggest looking at the Epos Now till system review because they offer specific modules tailored to your exact sector.
2. Don’t Get Blinded by "Free" Hardware
We all love a bargain, but in the world of EPOS, "free" often comes with a catch. Some providers will offer you a shiny new tablet or terminal for £0 upfront, but they’ll lock you into a long-term contract with higher-than-average processing fees.
Over a three-year period, that "free" terminal could end up costing you thousands more than if you’d bought it outright. It's always worth doing the maths on the total cost of ownership. We think it’s usually better to pay a fair price for your hardware upfront to keep your monthly overheads predictable.
3. Understand Payment Processing Fees
This is where things can get a bit "maths-heavy," but stay with us. There are generally two ways you’ll be charged: a flat rate (like you’ll see in our SumUp POS system review) or "interchange-plus" pricing.
Flat rates are great for small businesses or those with lower turnover because they are simple to understand. However, as your business grows, those small percentages really start to add up. If you're processing a high volume of transactions, a system like the Epos Now till system often allows you to integrate with various payment providers to find the most competitive rates for your specific turnover.
4. Integration is Your New Best Friend
In 2026, your POS system shouldn't live on an island. It needs to talk to your accounting software (like Xero or Sage), your marketing tools, and your staff scheduling apps.
The goal here is to reduce "double entry." You don't want to be manually typing your daily takings into a spreadsheet at 11 PM. A system with a strong app ecosystem, like Epos Now integrations, can save you hours of admin every week. On top of this, using tools like Zapier POS integrations can connect your till to almost any other piece of software you use.
5. Inventory Management Should Be Real-Time
Whether you’re selling coffee beans or designer jeans, knowing exactly what you have in stock is vital. The best POS system for your business will track inventory in real-time across all your sales channels.
If you sell your last blue jumper in-store, your website should update instantly to show it’s out of stock. This prevents the awkward "sorry, we don't actually have that" phone call to a customer. Many modern systems even offer automated reordering, so when you hit a certain level, the system automatically drafts a purchase order for your supplier. It’s a huge time-saver.
6. Consider the Reliability of Offline Mode
The UK’s internet isn't always as reliable as we’d like. If your Wi-Fi goes down on a busy Saturday afternoon, can your POS system still take card payments?
Some "cloud-based" systems become expensive paperweights the moment they lose connection. We always recommend checking if a system has a robust "offline mode." This allows you to continue taking payments which then sync up to the cloud once you're back online. It’s definitely worth asking about this during a demo.
7. Ease of Use and Staff Training
You might be a tech wizard, but is your newest weekend staff member? A complicated interface leads to mistakes, slow queues, and frustrated customers.
When you're looking at a pos system, ask for a demo and see how many "taps" it takes to complete a standard sale. The interface should be intuitive enough that a new hire can learn the basics in under ten back-office minutes. We've found that the Epos Now till system is particularly user-friendly, which is a major plus for high-turnover industries like hospitality.
8. Customer Support That Actually Answers
When your till stops working at 7 PM on a Friday, you don't want to be talking to a chatbot or waiting 48 hours for an email reply.
We always look for providers that offer UK-based, 24/7 support. It's one of those things you don't think you need until you really need it. Some of the cheapest POS systems cut costs by offering minimal support, so be sure to check the reviews and see what current users are saying about their help desk.
9. Hidden Contract Terms
We’ve heard some horror stories about business owners getting stuck in five-year hardware leases that are impossible to break. Before you sign anything, check for:
- Contract length: Is it month-to-month or a multi-year commitment?
- Cancellation fees: What happens if your business changes direction?
- Hardware ownership: Do you own the kit, or are you just renting it?
The UK Government provides guidance on the types of records you need to keep, and a good POS system will make this compliance easy, but only if you aren't fighting with the provider over contract terms.
10. Scalability for Your Future Growth
You might only have one shop or cafe now, but what about three years from now? You want an epos system that can grow with you. Adding a second or third location should be a simple process of "plug and play," with a central "head office" dashboard where you can see how all your sites are performing at a glance.
Systems like Toast POS are great for growing food businesses, but for a solid all-rounder that handles scaling brilliantly, we often point people toward our Epos Now review. They make it very easy to add new terminals and locations as your empire expands.
Summary: Making the Right Choice
Choosing the best pos system doesn't have to be a headache if you know the right questions to ask. Focus on your industry needs, watch out for hidden processing fees, and ensure the system can grow alongside your ambitions.
If you're feeling overwhelmed, we highly recommend checking out our comprehensive guide on what is the best EPOS system in the UK for a side-by-side comparison.
Our Top Recommendation: Epos Now
If you’re looking for a system that ticks almost all these boxes: industry-specific features, great integrations, and solid UK support: then Epos Now is a fantastic place to start. They offer a versatile range of hardware and software that suits everything from a small pop-up to a busy high-street chain.
Ready to upgrade your business?
Check out our full Epos Now till system review to see if it's the right fit for you, or head over to their site to book a demo today. Don't leave your business success to chance: get a system that works as hard as you do!
Still unsure? Feel free to browse our other reviews, such as the SumUp POS review or our deep dive into Shopify POS to find the perfect match for your business.