POS vs payment gateway: What's the difference? (2026 guide)

Key takeaways

• A point-of-sale (POS) system is the hardware and software that completes an in-person sale; a payment gateway is the software layer that securely routes payment data between your checkout and the banking network.

• Most Singapore businesses that sell both in-store and online need both, but many modern platforms bundle them into one.

• With Airwallex Payments, you get a payment gateway and POS solution on one platform, so you can manage online and in-store payments without stitching together separate systems.

The difference between a POS system vs a payment gateway confuses a lot of Singapore merchants, and for good reason. The two terms are often used interchangeably, but they refer to different things.

This article breaks down what each one does, how they work together, and what your business actually needs depending on how you sell.

Whether you run a physical store, an online shop, or both, this guide gives you a clear picture before you commit to a provider.

What is a POS system?

A point-of-sale (POS) system is the combination of hardware and software a business uses to make and manage sales in person. It covers what happens at the counter, from scanning an item to issuing a receipt.

A POS system typically has two parts:

1. POS hardware

This is the equipment you use at the checkout, such as:

• Card reader or payment terminal

• Barcode scanner

• Cash drawer

• Receipt printer

• QR codes for PayNow and SGQR

• Tablet-based POS systems, which are common among smaller retailers and F&B businesses

In Singapore, your setup may also include a NETS terminal or other equipment for accepting local payment methods.

2. POS software

The software keeps track of what happens when a customer makes a purchase. Depending on the system, it can:

• Record sales transactions

• Update inventory

• Generate sales reports

• Keep a record of purchase history

• Connect with accounting software

• Integrate with loyalty or membership programmes

Your POS keeps track of what was sold, when it was sold and how much the customer paid.

But it isn't necessarily what actually processes the payment or moves the money. For that, it needs to connect to a payment gateway or payment processor.

What is a payment gateway?

A payment gateway is the software layer that captures, encrypts, and routes payment data from the point of entry to the banking network and back. It sits between your customer's payment method and your bank account.

Unlike a POS system, a payment gateway is a software function rather than a physical device. For online payments, it's part of the checkout process. In a physical store, it works behind the scenes through the payment terminal or POS system.

For a deeper look at how payment gateways work, see our guide to payment gateways.

What is the difference between a POS vs payment gateway?

The easiest way to think about it is: a POS system manages the sale, while a payment gateway processes the payment. They often work together, but they do different jobs.

A POS and payment gateway can work as separate systems, but having them bundled together generally makes things simpler. With fewer systems to connect and manage, there's less complexity behind the scenes.

For example, Airwallex offers both payment gateway and POS solutions on the same platform, so businesses can manage online and in-store payments without having to piece together separate providers.

Do Singapore merchants need both a POS and payment gateway?

If you sell 100% online or 100% offline, the choice is pretty simple. The setup gets more complicated when you sell through both channels.

If you sell both online and in-store, using separate systems for each channel isn’t ideal. You’ll have different dashboards, reports and settlement records to keep track of.

Instead, use a platform like Airwallex Payments, which lets you manage online and in-store payments through the same platform.

Costs to know: POS fees vs gateway fees

It’s common to pay for both a POS system and a payment gateway, sometimes from different providers. Understanding what you’re paying for at each layer makes it easier to compare the true cost of different setups.

POS system costs typically include:

• Hardware: A one-off purchase or rental fee for your terminal, card reader or tablet setup

• Software: A monthly subscription for the POS platform. Basic plans may be free, while more advanced systems with inventory and reporting features can cost S$50 to S$200 or more per month

• Support and maintenance: Some providers charge additional fees for ongoing support or maintenance

Payment gateway costs typically include:

• Transaction fees: Usually a percentage of each transaction, sometimes with an additional fixed fee. Local payment methods such as PayNow tend to be cheaper, while card payments typically come with higher processing fees. The exact rate depends on the provider and your transaction volume.

• Monthly fees: Some providers charge a monthly platform fee on top of transaction fees

If your POS includes payment gateway functionality, you may pay a single transaction rate rather than separate fees for the POS and gateway.

How Airwallex brings your POS and payments together

If you sell both online and in-store, managing a separate POS and payment gateway can add unnecessary complexity. Airwallex brings both together on one platform to make things easier for you.

One POS solution across multiple markets

Airwallex supports POS payments across Singapore, Hong Kong, Malaysia, the UK, Europe and New Zealand, so you can work with a single provider instead of having to integrate a different provider in each market.

Frequently asked questions (FAQs)

Is a POS system the same as a payment gateway?

No. A POS system is the hardware and software that manages an in-person sale. A payment gateway is the software layer that encrypts and routes payment data to the banking network. Every POS system that accepts non-cash payments needs a gateway to process them, but the two are distinct tools that serve different functions.

Do I need a separate payment gateway if I already have a POS system?

Not necessarily. Most modern POS systems, including bank-issued terminals and tablet-based platforms, bundle gateway functionality as part of the package. Where a separate gateway becomes relevant is when you also sell online, or when your bundled gateway does not support the payment methods or settlement options your business needs.

Can one provider give me both a POS system and a payment gateway in Singapore?

Yes. Several providers in Singapore offer platforms that cover both in-store and online payments, including Airwallex. When evaluating options, check that the provider holds a valid MAS licence under the Payment Services Act, supports local payment methods like PayNow and GrabPay, and offers settlement speeds that suit your cash flow needs.

What happens to my PayNow payments at a POS terminal?

When a customer scans your SGQR code or PayNow QR at the counter, the gateway processes the transaction and sends a confirmation to your POS. For domestic PayNow transactions, most Singapore providers settle funds to your account the next business day. Settlement timelines for other payment methods may differ.

How is a payment gateway different from a payment processor?

A payment gateway captures and encrypts payment data at the point of entry, whether that is an online checkout or a POS terminal. A payment processor is the company that takes that data and moves it between the card network and the relevant banks to complete the transfer of funds. The two work together on every transaction. For a full breakdown, see our guide to payment gateways vs payment processors.

Do I need an MAS licence to accept payments in Singapore?

No, merchants do not need their own licence. The licence requirement applies to the payment service provider processing your transactions. Before signing up with any gateway or POS platform, check that the provider holds a valid licence under the Payment Services Act on the MAS Financial Institutions Directory.