To choose a POS system, write down how your business actually sells, test each candidate against those must-haves during a real shift, and compare the total three-year cost including hardware, add-ons and payment fees.
The right POS system is the one that fits the way your business already sells, costs what you expect over several years, and gives you numbers you will actually read. Most bad choices come from picking on the monthly price or a long feature list and discovering the gaps on a busy Saturday. This guide walks through a method that works whatever you sell and wherever you are: describe your selling, turn it into a short list of must-haves, test them properly, and compare the full cost.
Step 1: Describe how you actually sell
Before looking at any product, write one page about a normal day. Who stands at the till, and how many people are serving at the peak? Do customers pay at a counter, at a table, after an appointment, or when they collect an order? How many items are in your catalogue, and do you need to know how many of each you have left? Do some customers pay later? Do you take cash, card, mobile money, or all three?
The answers sort businesses into a few shapes. A café needs speed, modifiers or notes, and held orders. A retail shop needs barcode scanning and accurate stock. A salon or clinic needs a calendar more than a fast item grid. A bar needs customer tabs. A business with several staff needs permissions so that not everyone can void a sale or give a discount. Your page of notes becomes the test plan for every system you look at.
Step 2: Turn it into must-haves and nice-to-haves
Separate what you cannot trade without from what would be pleasant. A must-have is something that would force a workaround every day if it were missing. Keep the must-have list short — usually six to ten items — so it is easy to test. The table below lists requirements most small businesses share, why each matters, and how to check it during a trial.
| Requirement | Why it matters | How to test it |
|---|---|---|
| Fast item entry | Every extra tap is multiplied by every sale | Ring up your ten best sellers; time it |
| Cash handling and change | Wrong change is the most common cash error | Take a cash payment with an odd amount and check the change shown |
| Stock that updates on sale | Manual stock counts drift within days | Sell an item and confirm its quantity dropped |
| Payment methods you use | Reports are only useful if they match your bank | Record a cash, card and mobile sale; check the day’s payment mix |
| Staff permissions | Voids and discounts are where money goes missing | Log in as a staff user and try to void a sale |
| Works when the internet drops | A dead till at the peak costs real sales | Turn off Wi-Fi mid-shift and ring up a sale |
| Data export | You may need to leave one day | Export items and sales to a spreadsheet |
| Reports you understand | You will read them every evening | Ask yourself what the dashboard says about today |
Nice-to-haves might include an online store, appointment booking, loyalty features or multi-location support. They can tip a close decision, but they should not outweigh a must-have that is missing. If you expect to need one of them within a year, move it up: switching systems later is more disruptive than choosing well now.
Step 3: Compare the total cost, not the monthly price
POS pricing is usually built from several parts: a software subscription (sometimes per device or per user), paid add-ons for features such as inventory or online ordering, hardware, and card-processing fees if the POS company also handles your payments. The fair comparison is the total over three years, because that is roughly how long a business keeps a till before reviewing it.
Here is a worked example with illustrative figures — not quotes from any vendor. A shop with two tills compares two options. Option A charges $60 per device per month, plus $30 per month for an inventory add-on, and requires its own terminal hardware at $800 per till. Option B is browser-based software at no monthly charge running on two tablets the owner buys for $300 each.
| Cost line | Option A | Option B |
|---|---|---|
| Software (36 months) | 2 × $60 × 36 = $4,320 | $0 |
| Add-ons (36 months) | $30 × 36 = $1,080 | $0 |
| Hardware | 2 × $800 = $1,600 | 2 × $300 = $600 |
| Three-year total | $7,000 | $600 |
Your numbers will differ, but the method holds in any currency: multiply every monthly charge by 36, add one-off costs, and compare totals. Then look at payment terms separately. If a POS requires you to use its own card processing, compare its rate with what you could get elsewhere. On $20,000 of card sales a month, a rate difference of 0.3 percentage points is 0.003 × $20,000 = $60 a month, or $2,160 over three years — more than many software subscriptions.
Step 4: Run a real trial
A demo shows a system at its best. A trial shows it on your counter. Most software can be tried for free; use the trial to rehearse a real day rather than to click around. A useful trial takes one or two hours of setup and one real or simulated shift.
- Enter your 20–30 best-selling items with real prices, and set stock for a few of them.
- Ring up a typical morning: ten to twenty sales across cash, card and any other method you take.
- Try the awkward cases: a customer who changes their mind, an item that is not in the catalogue, two customers at once, a refund.
- Create a staff login and check what it can and cannot do.
- Disconnect the internet and keep selling; reconnect and confirm nothing was lost or duplicated.
- Close the day: count the cash against what the system expects, and read the day’s report.
- Export the sales and items to a spreadsheet to confirm you can get your data out.
Score each must-have as pass, workaround or fail. One fail on a must-have usually rules a system out; several workarounds should make you cautious, because workarounds are what staff skip when it gets busy.
Step 5: Look past the counter
The till is only half of what a POS does. The other half is telling you what happened: takings, profit, best sellers, slow hours, cash differences, and stock that needs reordering. A system with a fast till and confusing reports leaves you back in a spreadsheet. During the trial, ask whether the report answers the questions you ask every evening — did today pay, what sold, is the cash right — without exporting anything.
Also consider where your business is heading. If you take bookings, sell online or run customer credit, a system that keeps those in the same records as your till avoids typing the same sale twice. If you might open a second location, check how multiple businesses or branches are handled under one login.
Red flags during evaluation
- Pricing that is only available after a sales call.
- No way to export your own data, or export only in a format nothing else reads.
- Hardware that will not work if you change provider.
- Features you need are listed as “coming soon” with no date.
- The till stops completely when the internet drops.
- Staff permissions are all-or-nothing.
Doing this in SageBizet
SageBizet is one option worth putting through the same test. It is a browser-based system that combines a point of sale, inventory, sales reports, appointment booking, an online store, a cash drawer and customer tabs, and it is free during early access with no per-device or per-user fees. It runs on a computer, tablet or phone you already own, keeps taking sales if the internet drops, and lets you build staff roles from granular permissions. Sales, inventory, expenses and customers export to CSV, so the data-export test is easy to run.
It is also honest about what it is not: it does not process card payments (you keep your existing terminal and record the sale as Card), it does not split one sale across two payment methods yet, and it is not accounting software. If any of those is a must-have for you, the method above will show it quickly — which is the point of testing before you commit. See pricing or create a free account to run your trial.