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A virtual card number is a digital payment credential linked to a card or funding account. You use it instead of entering the account’s underlying card number at supported checkouts. The merchant receives the virtual number, while the payment is authorized against the linked account. Exactly how the number works—and what security or spending controls it offers—depends on the issuer or platform.
How does a virtual card number work?
- Get or enroll in a credential. You request or activate a virtual number through an eligible card issuer or payment platform. The number is associated with an underlying card or funding account; it is not a separate source of funds.
- Use it at a supported checkout. Enter the virtual number in the merchant’s card fields, or use a supported browser or app feature that fills in the payment details. The merchant is given the virtual credential rather than the underlying number.
- The linked account is charged. The transaction is submitted for authorization against the associated account. If the product has limits or other controls, those may also apply. The exact authorization and checkout flow differs by product.
For commercial cards, Mastercard describes a workflow in which a business requests a number through an issuing bank or integrated platform, applies controls, and can deactivate the credential after use or expiration. That is an example of a business product, not a universal process for consumer virtual cards. Mastercard’s business virtual card overview explains that model.
How virtual cards are used for online shopping
At an online store that accepts the relevant card network and credential, a virtual number can stand in for the number printed on the physical card. This can reduce how often you disclose the underlying card number to merchants. Some offerings create or use a number for a particular merchant; others may provide a reusable credential. Check the issuer’s terms rather than assuming one behavior.
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Consumer and business virtual cards are not the same
Consumer checkout features
Consumer features generally focus on using a digital number for online purchases without giving the merchant the physical card number. Availability can be limited by card eligibility, country, device, browser, or app. American Express, for example, describes use with Chrome on desktop or Android and, where available, Android apps, subject to eligible U.S. card rules. Those requirements apply to that feature, not to all virtual cards.
Business payment credentials
Businesses may issue virtual cards for suppliers, employees, contractors, projects, or other expenses. Depending on the provider, each credential may have its own number, expiration date, and security code, and may be tied to a business funding account. Business products may also offer spend, time, merchant, or category controls. These capabilities should not be assumed for a consumer virtual number. See Visa’s business virtual card overview and Mastercard’s commercial card explanation.
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What security does a virtual card number provide?
Using a virtual number can limit disclosure of the underlying card number to a merchant. Some products also let a user or business restrict where, when, or how much can be charged to a credential. Those protections may reduce exposure if the virtual number is misused, but they do not make transactions fraud-proof or guarantee that the linked account cannot be accessed by other means. Security depends on the issuer’s implementation, the checkout context, and the controls actually enabled.
Before relying on a virtual card, check whether it is single-use or reusable, what happens to recurring payments and refunds, and whether you can lock, delete, or change the number. Also confirm supported merchants, devices, browsers, or apps. The product’s terms determine the details.
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What to compare when choosing a virtual card service
There is no universal virtual card design. Compare the actual issuer or platform offering on these points:
Quick Recap
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- Eligibility and access: Which cards or accounts qualify, whether enrollment is required, and which countries or account types are supported.
- Where it works: Supported browsers, apps, online merchants, mobile wallets, and any in-person payment use.
- Number behavior: Whether the credential is merchant-specific or reusable, how security codes work, when it expires, and whether single-use numbers are available.
- Controls: Whether you can set amount, time-period, merchant, or category limits, and whether the number can be frozen, adjusted, or deleted.
- Account handling: Which underlying card or account is charged and how transactions appear in the account’s records.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
