Meta Description: Avoid costly errors when picking your next till. From retail to restaurants, we reveal the 7 mistakes people make when hunting for the best POS system and how to get it right first time.
Choosing a new epos system for your business is a bit like choosing a new car. On the surface, they all look like they do the same thing, they get you from A to B (or in this case, take a payment and pop the till drawer). But once you get under the bonnet, you realise that some are built for the motorway, some are made for off-roading, and some are just barely holding together with duct tape and a prayer.
At What EPOS, we’ve spoken to hundreds of business owners who’ve been burnt by choosing the wrong kit. Whether you’re opening a brand-new boutique or looking for a more efficient restaurant pos system, the pressure to get it right is real. A bad choice doesn't just cost you money; it costs you time, sanity, and potentially customers.
To help you navigate the minefield, we’ve put together the seven most common mistakes we see people making when hunting for the best pos system. More importantly, we’ve got the fixes to make sure you don't fall into the same traps.
1. Letting the Upfront Price Tag Blind You
We get it. When you’re starting out or trying to cut costs, searching for the cheapest pos system feels like the most sensible thing to do. You see an advert for a free terminal or a £0-per-month software deal and think you’ve hit the jackpot.
The mistake here is ignoring the "hidden" costs. Often, those "free" systems make their money back through sky-high transaction fees or by charging you for every single "add-on" that you actually need to run a business. We’ve seen businesses choose a sumup pos because of the low entry cost, only to realise later that as their volume grows, those transaction fees start eating their profits alive. You can see more about this in our breakdown of how much SumUp charges per transaction.
How to Fix It: Look at the Total Cost of Ownership (TCO) over three years. Factor in the hardware, the monthly software subscription, and, crucially, the payment processing fees. Sometimes, paying a bit more upfront for an Epos Now till system can save you thousands in the long run because of their competitive fixed rates and robust features.
2. Buying a System That Can't Grow With You
A mistake we see far too often is the "it'll do for now" approach. You might only have one coffee shop today, but what happens when you want to open a second? Or when you decide to start selling your roasted beans online?
If you choose a basic pos system that lacks scalability, you’ll find yourself having to rip the whole thing out and start again in 18 months. That means retraining staff, re-entering inventory, and potentially losing all your historical sales data. It’s a massive headache that we’d love for you to avoid.
How to Fix It: Ask the provider about multi-site management and e-commerce integrations. Even if you don't need them today, you want to know they’re available. A platform like Shopify POS is brilliant for this because it connects your physical shop and online store seamlessly from day one.
Alt Text: A business owner looking at multiple shop locations on a tablet interface.
3. Ignoring Industry-Specific Features
Not all businesses are created equal. A retail pos system needs great inventory tracking and barcode scanning, whereas a restaurant pos system needs table management, kitchen display integration, and the ability to split bills easily.
If you try to force a retail-focused system into a busy bistro, your staff will hate you. We’ve seen it happen! They end up doing "workarounds" that lead to mistakes and slow service. On the flip side, using a hospitality system for a clothing store often means you lack the granular size/colour/style tracking you need to manage stock properly.
How to Fix It: Don't settle for a generic "all-rounder" if your needs are specific. If you’re in hospitality, you should be looking at something like Toast POS, which is built specifically for that environment. If you’re a general retailer, make sure the system handles returns, promotions, and stocktakes exactly how you need it to.
4. Skipping the "Integration" Check
In 2026, your epos system shouldn't be an island. It needs to talk to your accounting software (like Xero or QuickBooks), your email marketing tools, and your staff scheduling apps.
The mistake many make is assuming that "modern" systems all talk to each other. They don't. We’ve seen business owners spend hours every Sunday manually typing sales data into spreadsheets because their "best pos system" doesn't sync with their accounts. It’s a waste of your valuable time as an owner.
How to Fix It: Before you sign anything, check the "App Store" or integration list of the provider. For example, Epos Now integrations are some of the most extensive in the UK market, covering everything from loyalty programs to advanced reporting. If you want to see why we rate them so highly for connectivity, check out our full Epos Now review.
5. Overlooking the "User Experience" (For Your Staff)
You might be the one buying the system, but your staff are the ones using it for 8 hours a day. If the interface is clunky, slow, or requires ten taps to do a simple task, it’s going to frustrate them. Frustrated staff lead to mistakes, and mistakes lead to unhappy customers.
We often see owners get swayed by fancy back-office reporting (which is important!) while ignoring the fact that the front-end till interface looks like it was designed in 1995.
How to Fix It: Get a demo. And don't just watch the salesperson do it, grab the tablet or touch the screen yourself. Is it intuitive? Could you train a new seasonal staff member to use it in 15 minutes? If the answer is no, keep looking. A user-friendly system like the Epos Now till is popular because it’s incredibly straightforward for staff to pick up.
Alt Text: Staff member smiling while using a modern, sleek EPOS terminal to serve a customer.
6. Falling for the Hardware Lock-In
Some providers give you the software for a bargain but then charge you triple the market rate for a receipt printer or a cash drawer. Even worse, some systems use "proprietary" hardware, meaning if your screen breaks, you can only buy a replacement from them at whatever price they decide to charge.
It’s a classic trap. You think you’re getting a deal on the epos system, but you’re actually signing up for an expensive hardware subscription.
How to Fix It: Ask if the software can run on standard hardware (like iPads or Android tablets) or if you’re locked into their specific machines. While we love the sleek look of dedicated terminals, it’s always worth knowing if you have options. When opening a shop in the UK, keeping your hardware costs flexible can be a lifesaver for your initial cash flow.
7. Failing to Plan for When Things Go Wrong (Support)
Imagine it’s 7:00 PM on a Saturday. Your restaurant is packed, the queue is out the door, and suddenly… the till freezes. This is when you find out if you’ve chosen the best pos system or just the cheapest one.
Many business owners forget to check what kind of support is included. Is it 24/7? Is it based in the UK? Do you have to wait three days for an email reply, or can you get someone on the phone in two minutes? If your business relies on that till to take money, "email-only" support is a massive risk.
How to Fix It: Read the reviews specifically regarding customer service. We always suggest choosing a provider that offers 24/7 phone support as part of their package. It’s the kind of insurance you hope you never need, but you’ll be so glad you have it when things go south.
Alt Text: A busy retail environment showing why reliable EPOS support is essential.
The Ultimate Fix: Doing Your Homework
It’s easy to feel overwhelmed by the choices. Between epos now, toast, and shopify, there’s a lot of noise out there. But if you avoid these seven mistakes, you’re already ahead of 90% of other business owners.
If you’re looking for a solid starting point that balances cost, features, and reliability, we almost always recommend starting with a look at Epos Now. It’s a very versatile system that works well for both retail and hospitality, and their support is top-notch.
Ready to find your perfect match?
Check out our in-depth Epos Now till system review to see if it’s the right fit for your business. It might just be the best decision you make for your shop this year.
Quick Summary Checklist:
- Don't just look at the upfront price: Check the transaction fees!
- Think 2 years ahead: Can the system handle a second location?
- Industry matters: Does it have the specific "niche" features you need?
- Integrations: Does it talk to your accounting software?
- Test drive: Is the interface easy for your staff to use?
- Hardware: Are you locked into overpriced proprietary kit?
- Support: Can you call someone at 8 PM on a Friday?
Choosing the right epos system is a big step, but by taking your time and asking the right questions, you'll find a partner that helps your business thrive rather than a tool that holds it back. If you're still stuck, feel free to browse our blog for more comparisons and guides!