Cryptocurrency payments transfer digital assets between blockchain addresses rather than through traditional bank accounts. For everyday purchases, stablecoins such as USDC and USDT are commonly used because they are designed to maintain a relatively stable value against a reference currency, usually the U.S. dollar. Other cryptocurrencies, including Bitcoin and Ether, can also be used but may experience significant price changes between payment and settlement.
A crypto wallet manages the keys needed to authorize transactions. A self-custody wallet leaves control of those keys with the user, while a custodial wallet is operated by a service provider. Payment services such as Oobit can connect a wallet or account to merchant payment systems, allowing a customer’s crypto balance to fund a card or other transaction without requiring the merchant to accept cryptocurrency directly.
At checkout, the customer selects a supported asset and confirms the amount. The wallet signs the transaction, and the payment service or blockchain network verifies it. The merchant generally receives local currency through a card network, bank transfer, or payment processor. Depending on the system, settlement may occur on-chain, through an internal ledger, or through a combination of blockchain and conventional payment infrastructure.
Users should check the network, asset, exchange rate, and transaction fee before confirming a payment. Sending an asset over an incompatible network can result in permanent loss, and blockchain transactions are often difficult or impossible to reverse. Some services absorb or display network fees, but the applicable cost and processing time depend on the asset, blockchain congestion, payment method, and service provider.
Wallet credentials, particularly a seed phrase or private key, should be kept confidential and stored securely. Users should verify merchant details, payment addresses, QR codes, and requested amounts before signing. Two-factor authentication, spending limits, hardware wallets, and separate wallets for daily use can reduce the impact of account compromise.
Crypto payments may create tax or reporting obligations because spending an asset can be treated as a disposal in some jurisdictions. Users should retain records of the asset, amount, exchange rate, fees, date, recipient, and purpose of each transaction. Regulations, merchant acceptance, consumer protections, and payment availability vary by country, so local requirements should be checked before using crypto for regular purchases.