Online Payment

Electronic payment transactions processed through internet-based platforms where customers enter their payment information on a website or mobile app to purchase goods or services, classified as card-not-present transactions.

Online payments enable merchants to accept electronic payments through digital channels including e-commerce websites, mobile applications, online invoicing systems, and payment links sent via email or text message. These transactions are processed without the physical card being present, with customers manually entering their card number, expiration date, CVV code, and billing information into a payment form. The payment information is transmitted securely (via SSL/TLS encryption) to a payment gateway, which routes the authorization request through the card network to the issuing bank for approval.

The online payment process involves several key components. The payment gateway serves as the technology that securely captures and transmits payment information from the merchant's website to the payment processor. The payment processor connects to card networks and issuing banks to obtain authorization and settlement. The merchant's e-commerce platform or website integrates with the gateway through APIs, hosted payment pages, or embedded payment forms. Additional security layers include Address Verification Service (AVS) to verify the billing address matches bank records, CVV verification to confirm the customer has the physical card, 3D Secure authentication (Visa Secure, Mastercard Identity Check) requiring customers to authenticate with their issuing bank, and fraud detection tools analyzing transactions for suspicious patterns.

Online payments carry higher processing costs than card-present transactions due to increased fraud risk and chargeback rates. Interchange rates for e-commerce transactions typically range from 2.3% + $0.10 to 3.5% + $0.10 depending on card type and whether enhanced security measures are implemented. Merchants accepting online payments face unique challenges including higher chargeback rates (average 0.6-1.0% for e-commerce vs. 0.1-0.2% for card-present), increased fraud liability under card network rules, international payment complexities including currency conversion and cross-border fees, and customer abandonment rates if checkout processes are too complex. Best practices for online payment acceptance include implementing guest checkout options to reduce friction, offering multiple payment methods (cards, digital wallets, PayPal), using tokenization to securely store customer payment information for repeat purchases, optimizing mobile checkout experiences, and providing clear security indicators to build customer trust.

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Related Terms

3D Secure

An authentication protocol for online card transactions that adds an additional verification layer between the cardholder and issuing bank, shifting fraud liability from merchants to card issuers when properly implemented.

ACH Payment

Automated Clearing House payment is an electronic bank-to-bank payment method that transfers funds directly between bank accounts through the ACH network, typically used for direct deposits, bill payments, and recurring transactions.

Acquirer

A financial institution that processes credit card payments on behalf of merchants, maintains merchant accounts, and facilitates the settlement of funds from card-issuing banks to merchant bank accounts.

Address Verification Service (AVS)

A fraud prevention tool that compares the numeric portions of a billing address provided during a transaction against the address registered with the card-issuing bank, returning match result codes to help merchants assess transaction risk.

Aggregator

A payment service provider that enables multiple merchants to process card transactions under a single master merchant account rather than each merchant having their own dedicated merchant account, common with services like Square, Stripe, and PayPal.