What a POS system does and why the choice matters

A point of sale system is the hardware and software that rings up sales, tracks inventory, and records customer payments in your business. It replaces the old cash register and receipt book. The system you pick affects how fast you can serve customers, what data you can see about your business, how much you pay per month, and whether you can run your shop from anywhere or only from one location.

The choice is not between one obvious winner and bad alternatives. It is between different trade-offs: cloud-based systems cost less upfront but charge monthly fees; on-premise systems cost more to buy but have no recurring charge. Some systems work on tablets and smartphones; others need a dedicated terminal. Some integrate with accounting software; others do not. Picking the wrong one can mean paying for features you do not use, or missing features you need later.

Key Takeaways

  • POS systems fall into three categories: cloud-based (pay monthly, work anywhere), on-premise (buy once, work at one location), and hybrid (both options available).
  • Monthly costs typically range from $0 to $300 depending on features, but most systems also charge per transaction or per payment method, which adds up quickly.
  • The system you choose determines what data you can track about sales, inventory, and customers, so think about what reports matter to your business before you decide.
  • Integration with your accounting software, inventory system, or payroll matters more than it sounds — manual data entry between systems costs time and creates errors.
  • Most systems require a contract, so read the cancellation terms and whether you own the hardware or lease it before you commit.

Cloud-based systems versus on-premise systems

A cloud-based POS stores all your data on the vendor's servers. You access it through a web browser or app on a tablet or phone. You pay a monthly subscription, usually $30 to $100, plus a per-transaction fee (often 2 to 3 percent of each sale). Examples include Square, Toast, Clover, and Shopify POS. The main advantage is that you can run your business from anywhere — if you have internet, you can ring up a sale. The system updates automatically, so you always have the latest features. The main disadvantage is that you have no data if the internet goes down, and you pay forever; after five years you have paid $1,800 to $6,000 in subscription fees alone.

An on-premise POS runs on hardware you own, usually a terminal or computer at your checkout counter. Your data stays on your machine. You pay once to buy the system, typically $1,000 to $5,000, and then you own it. Examples include NCR, Micros (now Oracle), and some versions of Lightspeed. The main advantage is that you have no monthly bill and your data is yours. The main disadvantage is that you are stuck at that one location, updates are manual and sometimes cost extra, and if the hardware breaks you have to replace it yourself. You also need someone to maintain the system.

A hybrid system lets you choose. Lightspeed, Toast, and some others sell both a cloud version and an on-premise version. This matters if you think you might expand or change how you work later.

What you actually pay: subscription, transaction fees, and hardware

The advertised price is rarely what you pay. Most cloud systems quote a monthly fee but do not mention that you also pay per transaction. Square charges $0 per month but takes 2.6 percent plus $0.30 per card transaction. Toast charges $69 per month but also takes 2.99 percent plus $0.30 per card. If you do $10,000 in sales per month, that $0 monthly fee becomes $260 to $300 in transaction fees. On-premise systems have no transaction fees but may charge for support, updates, or additional terminals.

Hardware costs vary. Cloud systems often work on equipment you already own — a tablet or smartphone — so hardware can be free. Some vendors sell their own terminals for $200 to $500. On-premise systems usually require a dedicated terminal, which costs $500 to $3,000 depending on features. If you need multiple registers, the cost multiplies.

Read the contract for what happens if you cancel. Some systems charge an early termination fee. Some require you to return hardware or pay a restocking fee. Some lock you into a two-year contract. These terms can cost hundreds of dollars if you change your mind.

Integration with your other business software

Your POS system does not work alone. It needs to talk to your accounting software (QuickBooks, Xero), your inventory system, your payroll, and possibly your email marketing or customer loyalty program. If the POS does not integrate with these systems, you have to enter the same data twice — once in the POS and once in accounting. This costs time and creates errors.

Before you choose a system, list the software you already use or plan to use. Then check whether the POS integrates with it. Some systems integrate with dozens of programs; others integrate with only a few. Square integrates with QuickBooks Online, Xero, and many others. Toast integrates with different programs depending on your industry. Shopify POS integrates tightly with Shopify accounting but less tightly with outside software. If you use specialized software for your industry — restaurant management, salon booking, retail inventory — check whether the POS you are considering works with it.

Integration can be direct (the two systems talk to each other automatically) or through a third-party connector like Zapier. Direct integration is faster and more reliable. Third-party connectors are slower and sometimes break when one of the systems updates.

What data you can track and report

Different POS systems track different things. All of them track total sales and payment method. Beyond that, the options vary. Some track inventory in real time; others do not track inventory at all. Some show you which employees are selling the most; others do not track by employee. Some let you see which menu items or products are most popular; others do not. Some track customer data and let you build a mailing list; others do not.

Think about what you need to know about your business. If you run a restaurant, you probably need to know which dishes sell best and which are most profitable. If you run a retail store, you need to know which products are moving and which are sitting. If you run a service business like a salon, you need to know which services are booked most and which employees are busiest. Not every system gives you this data, and some charge extra for advanced reporting.

Most systems let you export data to a spreadsheet so you can analyze it yourself. Some have built-in dashboards that show you the numbers without extra work. The difference matters if you want to understand your business without spending hours in Excel.

Industry-specific features you might need

A POS system for a coffee shop does not need the same features as one for a hair salon or a retail boutique. Before you choose, think about what your business actually does.

Restaurants need systems that handle split checks, send orders to the kitchen, track food costs, and manage table reservations. Toast, Square for Restaurants, and Clover all do this. Retail stores need systems that track inventory across multiple locations, handle returns, and manage barcodes. Shopify POS, Lightspeed, and Square do this. Salons and spas need systems that book appointments, track client history, and manage staff schedules. Toast, Vagaro, and Mindbody do this. Service businesses like plumbing or landscaping need systems that track jobs, dispatch technicians, and invoice customers. Square, Toast, and Jobber do this.

If you use a system built for a different industry, you will pay for features you do not need and miss features you do. Spend time looking at systems designed for your type of business.

Security and payment processing

Your POS system handles customer payment information, which means it has to meet security standards set by credit card companies. This is called PCI compliance. If your system is not compliant, you can be fined or lose the ability to accept cards.

Most modern cloud-based systems handle PCI compliance for you — it is built in. On-premise systems vary. Some are compliant out of the box; others require you to maintain compliance yourself, which means keeping the software updated and the hardware find. If you are not sure, ask the vendor directly whether the system is PCI compliant and what you have to do to maintain compliance.

Also ask whether the system encrypts data in transit (when it travels from your register to the company's servers) and at rest (when it sits on their servers). Ask whether they back up your data and how often. Ask what happens to your data if the company goes out of business. These questions matter more than they sound.

Frequently Asked Questions

Can I switch POS systems later if I do not like the one I choose?

Yes, but it costs time and sometimes money. You will have to export your data from the old system, import it into the new one, retrain your staff, and possibly pay an early termination fee on your contract. Most systems let you export sales history and customer data, but not all. Before you sign up, ask whether you can export your data in a standard format if you leave.

Do I need a separate payment processor or does the POS system handle that?

Most cloud-based systems include payment processing — Square processes payments, Toast processes payments, Clover processes payments. You do not need a separate processor. Some on-premise systems require you to choose a payment processor separately, which adds another vendor and another contract. Check whether the system you are considering includes payment processing or whether you have to set it up yourself.

What happens to my data if the POS company goes out of business?

Cloud-based systems are riskier because your data lives on their servers. Ask the vendor what happens to your data if they shut down. Some promise to give you a copy; others do not. On-premise systems are safer because your data is on your own hardware, but you lose access to updates and support. This is a real risk — several POS companies have closed in recent years.

Do I need to buy a special terminal or can I use my own tablet?

Most cloud-based systems work on your own tablet or smartphone using their app. Square, Toast, and Clover all do this. Some vendors sell their own terminals for extra features like a built-in receipt printer or card reader. You do not have to buy their hardware, but some features may not work on your own device. Check the system's requirements before you assume you can use what you already own.

How long does it take to set up a POS system?

Cloud-based systems can be set up in hours — you read the app, enter your business information, connect a payment method, and you are running. On-premise systems take longer because hardware has to be delivered and installed, and staff has to be trained. Budget at least a few days for on-premise setup and a few hours for cloud-based setup. Most vendors offer onboarding support, but read the contract to see whether it is free or costs extra.