What are QR Code Payments?

What Are QR Code Payments?

QR code payments allow customers to make a payment by scanning a QR code (Quick Response code) with their smartphone camera. The QR code contains encoded information -- typically a payment link, a merchant identifier, or transaction details -- that directs the customer to a payment page or triggers a payment within a mobile app. The customer confirms the amount, authenticates the transaction, and the payment is processed.

You have probably seen QR codes on restaurant tables, invoices, charity collection boxes, and market stalls. They are those square, black-and-white patterns that smartphones can read instantly. While QR codes have been used for various purposes since the 1990s, their use for payments has surged in recent years, particularly in Asia where services like Alipay and WeChat Pay made QR code payments the dominant method of buying almost anything.

How QR Code Payments Work

There are two main models for QR code payments:

Customer-Scans-Merchant

The merchant displays a QR code -- on a screen, a printed card, or a sticker at the point of sale. The customer opens their phone camera or a payment app, scans the code, confirms the payment amount, and authorises the transaction. This model is popular with small merchants because it requires no electronic payment terminal -- just a printed QR code.

Merchant-Scans-Customer

The customer generates a QR code within their payment app, and the merchant scans it using a barcode reader or point-of-sale terminal. This is more common in structured retail environments and is similar to how loyalty cards work at supermarket checkouts.

Payment Links via QR Code

A third approach, increasingly common in the UK, uses QR codes simply as a convenient way to deliver a payment link. Scanning the code opens a web page where the customer can pay by card, bank transfer, or digital wallet. This is essentially a payment link encoded as an image, and it works with any smartphone -- no special app required.

Why Businesses Use QR Code Payments

QR code payments offer several practical advantages:

• Low cost for merchants -- unlike card terminals, a QR code can be printed on paper at essentially zero cost. There are no hardware fees, no connectivity requirements, and no terminal rental.
• Easy setup -- a sole trader or small business can start accepting QR code payments in minutes, without any technical expertise
• Versatility -- QR codes work on invoices, emails, websites, printed materials, and physical locations
• Touchless -- the customer uses their own device, which appeals to hygiene-conscious consumers
• Remote payment capability -- a QR code on an invoice or in an email allows payment from anywhere, not just at a physical till

In the UK, QR code payments have grown steadily but have not reached the dominance they enjoy in China and India. They occupy a useful middle ground between cash and card payments, particularly for small businesses, event vendors, and situations where traditional card terminals are impractical.

QR Code Payments and Telephone Payments

QR code payments and telephone payments intersect in a practical and increasingly common way. During a phone call, an agent can send the customer a QR code via email, SMS, or messaging app. The customer scans the code on their phone, which opens a secure payment page, and completes the payment while still on the line with the agent.

This approach has some genuine advantages for telephone payment scenarios:

• The customer never needs to share card details verbally or via their phone keypad
• The payment page can offer multiple payment methods -- card, bank transfer, digital wallet
• The agent can confirm payment completion in real time
• The process creates a clear audit trail with a digital receipt

However, there are limitations. The customer needs a smartphone to scan the QR code, which excludes some callers. The process requires the agent to have the customer's email address or phone number to send the code. And some customers may find the multi-step process less convenient than simply entering their card details on their phone keypad during the call.

For businesses that handle a high volume of phone payments, QR codes work best as one option among several rather than the sole payment method. They complement rather than replace secure DTMF-based payment solutions.

Practical Considerations

• Ensure your QR code payment links use HTTPS and are hosted on a PCI DSS compliant payment page. The security of the payment depends on the page the code links to, not the code itself.
• Include clear instructions with any QR code. Not all customers know how to scan one, and confusion leads to abandoned transactions.
• Set expiry times on payment QR codes. A code that remains active indefinitely is a security risk if the underlying link can be reused or manipulated.
• Test across different devices and payment apps. QR code compatibility can vary between iPhone and Android, and between different camera and scanning apps.
• Track conversion rates. If customers are scanning the code but not completing the payment, the payment page may need improvement.

QR code payments are a flexible, low-cost payment method that works well in specific scenarios. They are not a replacement for traditional card payments or established telephone payment methods, but they are a valuable addition to a business's payment options -- particularly for bridging the gap between phone conversations and digital payment completion.