The introduction of QR codes has transformed how we make payments, allowing us to complete transactions in just a few clicks. From restaurants to retail stores- QR codes have become ubiquitous, offering a seamless, contactless payment experience.

Buckle up and get ready to scan, because we’re about to unravel the secrets behind those pixelated wonders that have taken the world by storm.

So, let’s jump right in!

What is a QR Code?

You’ve likely come across those square patterns composed of smaller black and white squares known as QR codes.

But what exactly are QR codes?

Originating from a Japanese automotive company in the 1990s, these two-dimensional barcodes swiftly infiltrated our digital landscape. They serve as digital gateways, housing information within their intricate designs.

Data is encoded using a grid of black and white squares. Each square represents a binary digit, combining to form the encoded data. With the aid of a smartphone and a QR code scanning app, scanning a QR code unveils its hidden content within seconds. It could be a text message, website URL, contact details, or even a link to download an application.

According to a recent Juniper Research estimate, worldwide spending on QR code payments would exceed $3 trillion by 2025.

They have permeated various industries, simplifying our lives. Businesses and marketers have eagerly adopted QR codes as an innovative tool for engaging with customers. Whether found on product packaging, offering additional information or loyalty rewards, or enabling interactive experiences like augmented reality, QR codes have revolutionized customer interaction.

QR codes have become an integral part of our digital ecosystem, seamlessly connecting the physical and digital realms. By simply scanning these codes, we unlock a world of information and experiences, making our lives more convenient and engaging.

With QR codes, the possibilities are endless, and they continue to evolve, finding new applications in our connected society.

How Does QR Code Payment Work?

Still wondering how to pay with QR code!

Imagine you’re at a bustling café, ready to pay for your delicious cup of coffee. Instead of rummaging through your wallet for cash or handing over your credit card, you notice a small QR code displayed near the counter.

Here’s how the process unfolds to pay with a QR code:

1. Find a QR Code

When you’re ready to make a payment, look for a QR code for payment displayed at the point of sale, either on a screen or printed on a receipt. Many invoices or stores display QR codes accessibly.

It may contain the merchant’s information, payment details, or a link to a payment gateway.

2. Open a QR Code Scanner

To scan a QR code, you’ll need a QR code scanning app installed on your smartphone. Many smartphones have built-in QR code scanners in their camera apps, while others require you to download a dedicated QR code scanner from your device’s app store. Open the scanning app and get ready to scan.

3. Scan the QR Code

Position your smartphone’s camera in front of the QR code for payment, ensuring that the entire code fits within the scanning frame.

4. Choose a Payment Method

After scanning the QR code, you’ll be directed to a payment gateway or a specific payment app associated with the merchant. Here, you’ll have the option to select your preferred payment method.

It could be a credit or debit card, a digital wallet, or even a mobile banking app.

5. Authenticate and Confirm

Depending on the payment app or gateway, you may need to authenticate the transaction using a PIN, fingerprint, or facial recognition.

6. Complete the Transaction

Once you’re satisfied with the payment details, simply tap the “Pay” or “Confirm” button to initiate the transaction. The payment app or gateway will securely process the transaction in real-time.

7. Payment Confirmation

Once the payment is processed successfully, you’ll receive a confirmation notification on your smartphone screen. This notification acts as a digital receipt, providing you with proof of payment.

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Examples of How QR Codes Can be Used for Payments

By enabling quick and secure transactions, QR codes have transformed the way we handle payments, making financial interactions more efficient, hygienic, and user-friendly.

These examples illustrate the versatility and convenience of QR code payments in various real-life scenarios.

  1. Retail Stores and Supermarkets: Customers can scan QR codes at the POS system checkout counter to make quick and contactless QR code payments, eliminating the need for cash or cards.
  2. Restaurants and Cafés: Display QR codes on tables or bills allow customers to access digital payment interfaces, review bills, and complete transactions seamlessly.
  3. Online Shopping: QR code payments are used during online checkout processes, directing customers to payment gateways or QR code mobile payment apps for secure transactions.
  4. Peer-to-Peer Payments: Personalized QR codes enable users to transfer funds instantly between individuals, simplifying bill splitting and peer-to-peer transactions.
  5. Transportation and Ticketing: QR codes are used for ticketing in transportation systems, allowing commuters to scan QR codes for easy access and reducing paper waste.
  6. Charitable Donations: QR codes on promotional materials and websites enable users to scan qr code to pay and donate to non-profit organizations or fundraising campaigns with their preferred payment methods.

Benefits of Using QR Code

QR has truly revolutionized the way we interact with information, payments, and marketing campaigns. Their versatility, ease of use, and a wide range of benefits have made them an indispensable tool in our increasingly digital world.

1. Convenience

With a simple scan using a smartphone, users can quickly retrieve data, make QR code payments, or access exclusive content. This eliminates the need for manual entry of lengthy URLs or dealing with physical cards or cash, making transactions faster and more streamlined.

2. Contactless and Hygienic

Especially in a world concerned with hygiene after the hit of the global Covid pandemic, QR offers a touchless solution. Users can complete transactions or access information without handing over cards or touching shared surfaces like payment terminals or menus.

3. Speed and Efficiency

QRs enable rapid transactions and information retrieval. With a quick scan, users can instantly access websites, make payments, or transfer data. This saves time for both customers and businesses, reducing queues and enhancing the overall efficiency of processes.

4. Cost-Effective

Generating and distributing QRs is relatively inexpensive, especially compared to traditional methods like printing physical tickets or marketing materials.

5. Enhanced Tracking and Analytics

By tracking the usage and scans of QR codes, companies can gather insights into customer behavior, preferences, and campaign effectiveness.

6. Improved User Experience

QR codes enhance the user experience by simplifying processes and reducing friction. Whether it’s accessing content, making payments, or joining loyalty programs, QR codes provide a seamless and user-friendly interface. They eliminate the need for manual input, reducing errors and creating a smoother experience for customers.

7. Security

QR codes offer enhanced security features for payments and data transfers. The encryption and secure protocols used in QR code-based transactions protect sensitive information, minimizing the risk of fraud or unauthorized access. Additionally, QR codes can be time-limited or dynamically generated, adding an extra layer of security and preventing misuse.

8. Easy Implementation

QR codes are easy to generate, distribute, and implement across various platforms and media. Businesses can quickly integrate QR codes into their existing systems, websites, or mobile apps without extensive technical expertise.

9. Offline Accessibility

One of the remarkable advantages of QR codes is their ability to function in offline environments. Unlike traditional barcodes that require an internet connection to retrieve information, QR codes can store data directly within the code itself.

10. Error Reduction

QR codes reduce the potential of errors. Whether it’s entering a lengthy URL, contact details, or payment information, typing mistakes can happen.

11. Eco-Friendly

QR codes contribute to environmental sustainability by replacing physical tickets, brochures, menus, and loyalty cards, there is a significant reduction in paper waste.

12. Global Compatibility

QR codes have global compatibility, meaning they can be scanned and read by smartphones and devices worldwide. This universality makes QR codes accessible to a vast range of users, irrespective of their location or device type.

13. Scalability and Flexibility

QR codes can be scaled effortlessly to accommodate various business needs. Whether it’s a small-scale promotional campaign or a large-scale e-commerce operation, QR codes can handle the demand.

Types of QR Codes

  1. URL QR Codes: Contact details including name, phone number, email address, and company information are stored in vCard QR codes. When scanned, the unique QR code automatically opens the designated website or landing page on the user’s device, providing quick access to relevant information, promotions, or online resources.
  2. vCard QR Codes: vCard QR codes store contact information such as name, phone number, email address, and business details. Scanning this type of QR code allows users to quickly save the contact details directly into their address book without the need for manual entry. vCard QR codes are commonly used on business cards, brochures, or websites for seamless contact sharing.
  3. SMS QR Codes: These QR codes are designed to send predefined text messages when scanned. They are often used in marketing campaigns to encourage users to send a specific message or join SMS subscription lists.
  4. Email QR Codes: Email QR codes enable users to compose and send preformatted emails by simply scanning the code. These QR codes are commonly used in marketing materials or on websites to encourage users to contact a specific email address without the need to manually enter the recipient’s email details.
  5. WiFi QR Codes: WiFi QR codes facilitate quick and easy connectivity to a specific wireless network. When scanned, these codes automatically configure the device’s WiFi settings, allowing users to connect to a WiFi network without the need to manually enter the network name (SSID) and password. WiFi QR codes are commonly used in cafes, hotels, or public spaces to simplify the WiFi login process.
  6. Event QR Codes: Event QR codes provide attendees with access to event details, ticketing, or registration information. Scanning these codes grants entry to events, concerts, conferences, or exhibitions. Event QR codes may also include personalized information, such as seat numbers or event schedules, allowing organizers to streamline event management processes.
  7. App Store QR Codes: App Store QR codes simplify the process of downloading mobile applications. Scanning these codes directs users to the respective app stores (such as Apple App Store or Google Play Store) where they can download and install the desired mobile app directly to their devices.

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Pros and Cons of QR Code


  • Convenience: A quick and simple way to communicate with businesses, get information, and make payments is through QR codes. With a simple scan using a smartphone, users can quickly retrieve data or complete transactions, eliminating the need for manual input or physical interactions.
  • Contactless and Hygienic: QR codes offer a touchless solution, which is especially valuable in today’s world. Users can make payments, access menus, or retrieve information without physical contact.
  • Versatility: QR codes can carry a variety of data, such as website URLs, contact information, payment information, and more. This versatility allows businesses to use QR codes creatively in marketing campaigns, product packaging, or event tickets, enhancing customer engagement and interaction.
  • Enhanced Tracking and Analytics: Businesses can benefit from important data and analytics provided by QR codes. Companies can acquire information from customer behaviour, preferences, and campaign performance by tracking scans and user interactions. This information can be utilised to improve marketing campaigns, personalise customer interactions, and make data-driven business decisions.


  • Smartphone Dependency: QR codes rely on users having a smartphone with a QR code scanning app. While smartphones are prevalent, there may still be some individuals who do not own or use smartphones regularly, limiting their ability to interact with QR codes.
  • Technical Barriers: Scanning QR codes requires users to have a QR code scanning app installed on their smartphones. Although many devices come with built-in scanning capabilities, some users may need to download and learn how to use a separate app, which can be a barrier for less tech-savvy individuals.
  • Internet Connectivity: QR codes often require an internet connection to access online resources or complete transactions. If users are in areas with limited or no internet connectivity, the functionality of QR codes may be hindered, preventing them from accessing the intended information or services.

How to Pay Invoice Via QR Code?

To pay an invoice received from a seller using a QR code, follow these steps:

  1. Upon receiving the invoice from the seller, carefully review and verify the details mentioned in the invoice. Confirm that the payment amount, due date, and any other relevant information are accurate.
  2. Ensure that you have a mobile banking or payment app installed on your smartphone or tablet that supports QR code scanning. This app should allow you to make payments using your associated bank account or digital wallet.
  3. Once you have verified the invoice, locate the QR code provided by the seller. It could be in printed or digital form, such as a PDF or picture file.
  4. You can securely and conveniently pay the invoice received from a seller using the attached QR code to receive money. Always ensure that you review and verify the invoice details before proceeding with the payment to ensure a smooth and accurate transaction.
  5. As discussed earlier, QR code payments work in a similar manner when it comes to paying invoices. Clients can follow the mentioned steps to complete the payment process seamlessly.

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How Does Moon Invoice Help in QR Code Payment?

Moon Invoice payment processing software is a comprehensive invoicing and billing tool streamlines payment processes, including QR code payments. With Moon Invoice, you can generate professional invoices and include QR codes for convenient and secure payments.

Here’s how Moon Invoice assists in QR code payments:

1. QR Code Generation

Moon Invoice allows you to generate customized invoices with embedded QR codes. The QR code contains payment details linked to your preferred payment gateway or qr code payment app.

2. Seamless Payment Experience

By integrating Moon Invoice with a compatible payment gateway, businesses can accept payments and customers can simply scan the QR code on the invoice and complete the payment process effortlessly.

3. Invoice Management

Moon Invoice helps you track and manage your invoices efficiently. You can monitor payment status, send reminders, and easily reconcile payments received through QR code transactions.

4. Data Security

Moon Invoice prioritizes the security of your payment data. It uses encryption and adheres to industry-standard security procedures to guarantee the confidentiality and integrity of your financial data.

QR codes have become a revolutionary force in the payments landscape, introducing speed, convenience, and heightened security. From retail transactions to restaurant bills and invoice management, QR codes have transformed traditional payment methods, reshaping how we exchange money in our digital world.

With the help of Moon Invoice, businesses can seamlessly generate personalized QR codes connected to their payment details, enabling customers to scan, pay, and swiftly complete transactions.

Embrace the future of payments today by harnessing the power of QR codes and Moon Invoice!


Jayanti Katariya
Jayanti Katariya About the author

Jayanti Katariya is the founder & CEO of Moon Invoice, with over a decade of experience in developing SaaS products and the fintech industry. He holds a degree in engineering. Since 2011, Jayanti's expertise has helped thousands of businesses, from small startups to large enterprises, streamline invoicing, estimation, and accounting operations. His vision is to deliver top-tier financial solutions globally, ensuring efficient financial management for all business owners.