Paying for something once meant handing over cash, writing a cheque, or physically swiping a card and signing a receipt. From the 1990s onward, contactless payment technology began to change that process, allowing payment information to be exchanged simply by bringing a card close to a terminal. Since then, contactless payments have expanded from bank cards to smartphones, smartwatches and digital wallets such as Apple Pay and Google Pay.
Contactless payments have since become a standard part of everyday spending worldwide. As of 2026, tap to pay accounts for more than 60% of in-person Visa transactions in the US and roughly 80% internationally, while contactless payments make up around 81% of in-person card payments in Europe.
In this article, we will explore what a contactless payment actually is, how the technology works under the hood, how it is secured, real-world use cases, the benefits and limitations of contactless payments, and the emerging technologies shaping what comes next.
What Are Contactless Payments?
Contactless payments are proximity transactions, meaning the buyer’s card, phone, or wearable only needs to be brought within a short distance of the point-of-sale (POS) terminal. The two devices do not need to physically touch. Instead, they communicate wirelessly at close range, usually using near-field communication (NFC) technology. This allows the payment to be completed by holding or tapping the device near a card reader, self-checkout, ticket machine, or smartphone configured to accept payments, without inserting the card or, for many transactions, signing a receipt or entering a personal identification number (PIN).
Contactless Payments vs Mobile Payments
It is important to distinguish contactless payments from the broader category of mobile payments. The term is sometimes used loosely to describe any payment made without cash or inserting a card, but technically it refers to short-range proximity payments, usually using NFC. Mobile payment systems such as QR codes, BLIK in Poland, Bizum in Spain, TWINT in Switzerland and UPI in India can support in-person or phone-based payments without necessarily being contactless in the NFC sense. Some of these systems, however, also support separate NFC-based contactless functionality alongside their other payment methods.
To understand what happens during a contactless payment, it helps to break the process down into seven layers, from the NFC connection at the terminal to the payment infrastructure that processes and authorises the transaction.
| Level / Layer | What It Represents | Standard Contactless Example |
|---|---|---|
| Product / programme | What the customer thinks they are using | Bank card, Apple Pay, Google Pay |
| 1. Contactless interface | How the payment reaches the terminal | NFC |
| 2. Customer device | What is tapped | Physical card, iPhone, Android phone, smartwatch |
| 3. Payment credential | What payment credential is presented | EMV card credential, or a tokenised card credential through a digital wallet |
| 4. Payment network | Network carrying the card transaction | Visa, Mastercard, American Express, Discover or another card network |
| 5. Funding source | Value ultimately funding the purchase | Account balance or credit line |
| 6. Account / wallet | Where that value sits before spending | Current/checking account, credit card account or digital wallet linked to an underlying card |
| 7. Card/payment infrastructure | Who enables card issuance, authorisation, processing and settlement | Merchant acquirer/processor, card network, issuing bank and other payment infrastructure providers |
How Do Contactless Payments Work?
Contactless payments are enabled by short-range communication that uses NFC, a technology based on radio-frequency identification (RFID). When the payment device is brought within a few centimetres of the terminal, their antennas communicate using electromagnetic fields. In a contactless card, an embedded chip processes the payment information, while the antenna allows that information to be exchanged with the terminal.
NFC explains how the card and terminal communicate, but another standard governs how the payment itself is carried out. Most modern contactless card payments follow Europay, Mastercard and Visa (EMV) guidelines. These specifications are developed and maintained by EMVCo, the organisation responsible for standards used in chip-based and contactless card payments.
How Are Contactless Payments Secured?
Contactless payments use several layers of security to protect card details and make intercepted payment data difficult to reuse. The exact protections depend on whether you are tapping a physical card or using a digital wallet.
| Security Feature | How It Works | Why It Matters |
|---|---|---|
| EMV Cryptography | Modern contactless cards generally follow EMV security standards. Instead of transmitting exactly the same payment data each time, the chip uses cryptography to generate transaction-specific data, including a unique cryptogram for each payment. EMV can use both symmetric cryptography, where the card and issuer share secret keys, and public-key cryptography to help authenticate the card to the terminal. | The cryptogram helps the issuer verify that the transaction came from a genuine card and makes it much harder to reuse payment data captured from an earlier transaction. |
| Tokenisation | Digital wallets such as Apple Pay and Google Pay can replace the underlying card number with a separate payment credential, or token, associated with the device. When the user taps their device, this tokenised credential is used instead of simply exposing the cardholder's underlying card number to the merchant. | If payment data is intercepted or exposed, the merchant does not receive the user's actual card number. The payment network and issuer can still associate the token with the correct account when processing the transaction. |
| Device Authentication | Mobile wallets can require Face ID, fingerprint recognition, a security code, or another form of device authentication before a transaction is completed. | This allows the device itself to provide evidence that the person using the payment credential has already been authenticated, making a mobile-wallet payment different from simply tapping a physical card. |
| Short NFC Communication Range | NFC normally operates over a very short distance, typically only a few centimetres, meaning the contactless payment method must be held close to the payment terminal. | The limited range reduces the chance of accidental communication with distant readers. However, relay attacks remain possible, where specialised equipment forwards communication between a legitimate contactless payment method and a terminal over a greater distance. |
| Contactless EMV vs. Magnetic Stripe Data (MSD) | Earlier contactless systems could use Magnetic stripe data (MSD), which transmitted payment information wirelessly in a format similar to traditional magnetic-stripe transactions. Modern contactless payments predominantly use contactless EMV, which incorporates chip-based cryptography and transaction-specific security data. | Contactless EMV provides stronger protection against cloning and the reuse of captured payment information than older MSD-based contactless systems. |
Contactless Payment Examples and Solutions
Contactless payments rely on technology at both ends of the transaction. Merchants need a compatible terminal or mobile device to accept them, while customers need a contactless-enabled card or device.
The following sections look at both sides of this process and how these technologies are used in practice, with a specific emphasis on the customer aspect.
Merchants: Contactless Payment Systems
- Square – Accept in-person payments through portable readers, terminals, or Tap to Pay, making it especially accessible for small businesses and independent sellers.
- Stripe Terminal – Connect online and in-person payments through the same Stripe infrastructure, with flexible APIs and developer-focused integrations.
- Adyen POS – Manage payments across multiple stores, markets, and channels through one centralised platform built for larger international merchants.
- PayPal Point of Sale – Accept card, wallet, and QR payments through PayPal’s wider payments ecosystem, including PayPal and Venmo.
- Worldpay – Turn compatible smartphones into payment terminals with Tap to Pay, supporting mobile use cases such as restaurants, events, deliveries, and field sales.
- SumUp – Simple, portable payment hardware and smartphone-based acceptance aimed primarily at small merchants and mobile businesses.
- Clover – Combine payment acceptance with POS software for managing orders, inventory, receipts, employees, and other day-to-day business operations.
Customers: Contactless Payment Solutions
Apple Pay
Users can store payment credentials on an Apple device and authenticate purchases with Face ID, Touch ID, or a passcode before tapping the device at an NFC terminal.
Google Wallet / Google Pay
Google Wallet provides the Android equivalent, allowing supported cards to be stored on NFC-enabled devices.
Alipay+
Alipay+ shows how mobile wallets originally built around QR and account-based payments can also connect to conventional NFC acceptance. Through its partnership with Mastercard, participating wallets can enable users to tap their phones at compatible Mastercard terminals without necessarily issuing them a traditional payment card first. This allows QR-based and mobile-wallet ecosystems to use the same contactless infrastructure already available to conventional cards and digital wallets.
Venmo
Venmo operates on both sides of the checkout. Consumers can pay merchants using Venmo, while businesses can also use compatible smartphones as Tap to Pay terminals capable of accepting cards and digital wallets from customers who may not use Venmo at all.
Cash App
Cash App offers both virtual and physical Cash App Cards, with the physical card supporting contactless Visa payments. In 2026, Cash App also introduced Cash App Tags, NFC-enabled physical accessories linked to a Cash App Card that can be tapped directly at compatible contactless terminals.
Benefits and Limitations of Contactless Payments
Benefits
- Fast and convenient – Payments can usually be completed in seconds by tapping a payment card or NFC-enabled device, making checkout quicker than cash or chip-and-PIN transactions.
- Strong payment security – Modern contactless payments use security features such as EMV cryptography, which helps protect against card cloning and replay attacks.
- Additional protection with digital wallets – Mobile wallets can add tokenisation and device authentication.
- Works across different devices – Contactless payments can be made on a wide variety of compatible devices.
- Widely accepted – Contactless payments are commonly accepted in shops, restaurants, transport systems, vending machines and other in-person payment environments.
Limitations and Risks
- Cardholder verification method (CVM) and transaction limits – Some contactless payments are subject to transaction or cumulative spending limits, after which the user may need to enter a PIN or use another verification method.
- Lost or stolen card fraud – If a physical contactless card is lost or stolen, it may be misused for low-value purchases before the card is blocked.
- Relay attacks – Attackers may attempt to relay communication between a legitimate card or device and a payment terminal to facilitate unauthorised payments.
- Technology dependence – Contactless payments rely on compatible terminals, while phones and wearables can also depend on battery power and, in some cases, network connectivity.
- Privacy concerns – Some users may be concerned about data sharing, transaction tracking, or the possibility of payment-related data being accessed without their knowledge.
How Contactless Payments Are Evolving
In reference to the seven-layer structure outlined earlier, the contactless interface itself has changed relatively little: NFC remains the main technology used to communicate between a card or device and a payment terminal. However, changes deeper in the payment stack are altering what happens before and after that tap. Neobanks, stablecoin cards, self-custodial wallets and newer card infrastructure providers are changing how contactless payments are funded, where users hold their money, and how transactions are processed behind the scenes.
The table below shows where these developments fit within a contactless payment.
| Level / Layer | What It Represents | Examples |
|---|---|---|
| Product / programme | What the customer thinks they are using | Plasma One, Kolo, COCA, ether.fi |
| 1. Contactless interface | How the payment reaches the terminal | NFC |
| 2. Customer device | What is tapped | Physical card, iPhone, Android phone, smartwatch |
| 3. Payment credential | What payment credential is presented | Visa/Mastercard card credential, tokenised Apple Pay/Google Pay credential |
| 4. Payment network | Network carrying the card transaction | Visa, Mastercard |
| 5. Funding source | Value ultimately funding the purchase | EUR/USD balance, credit, USDC, USDT, other crypto |
| 6. Account / wallet | Where that value sits before spending | Bank/e-money account, custodial wallet, self-custodial wallet |
| 7. Card/payment infrastructure | Who enables card issuance, authorisation, processing and settlement | Rain, Kulipa, Wirex BaaS, Bridge and similar infrastructure providers |
As the table illustrates, many of the newer developments in contactless payments are taking place deeper in the stack, particularly across the funding, account and infrastructure layers. The NFC interaction at the terminal can remain almost identical while the source of the funds, the way they are held and the infrastructure connecting them to the card network can be very different.
Take the Plasma One card as an example. From the customer's perspective, the process looks familiar: they use a physical Plasma One card or a compatible device and tap it against an NFC terminal. The card operates over the Visa network, so the merchant can accept it through existing contactless infrastructure. Behind that familiar tap, however, Plasma One uses a substantially different financial stack.
Users can deposit assets including USDT, USDC and XPL across supported blockchain networks. USDT deposits are supported across networks including Plasma, Ethereum, Solana, Tron, Optimism, Polygon, BNB Smart Chain, Arbitrum and HyperEVM, while USDC can be deposited through supported networks including Ethereum, Solana, Base, Optimism, Polygon and Arbitrum. XPL can also be deposited through the Plasma network.
Users can additionally fund their account using conventional payment rails through Bridge-powered account infrastructure, including USD through ACH or domestic wire transfers, EUR through SEPA, GBP through Faster Payments and MXN through SPEI. Plasma describes Plasma One as non-custodial: Plasma does not custody users' stablecoin assets, which remain owned and custodied by the user. The Plasma One card itself is issued by Rain, a Visa Principal Member, while its global account services are powered by Bridge.
For the customer, the significance is that the tap does not have to change for the financial system behind it to change considerably. A merchant can receive a familiar Visa contactless transaction while the customer funds their spending from stablecoins, holds assets through a different custody model, or moves money into the account using both blockchain and conventional banking rails. This allows newer financial products to use the acceptance infrastructure consumers and merchants already rely on, rather than requiring an entirely new way to pay at the checkout.