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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →A virtual card number gives an online merchant an alternate payment number instead of your physical card number. You can get one through an eligible card issuer or a third-party service, but the two options may use different funding sources and controls. Check eligibility, merchant acceptance, and whether the number suits one-time or recurring payments before relying on it.
What is a disposable credit card number, and how does it work?
A disposable credit card number—often called a virtual card number—is an alternate payment credential with its own number, security code, and expiration date. It is linked either to an existing card account or to a funding source through a service. The merchant receives the virtual number rather than your underlying card number.
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The main security benefit is compartmentalization: if a merchant’s stored payment data is exposed, the virtual number may limit exposure of your physical card number. Depending on the provider, a number may be restricted to a particular merchant, subject to a spending limit, paused or closed, or set to close after a qualifying transaction. These controls vary; a virtual number does not make a payment anonymous or make online shopping fraud-proof.
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| Option | How it is funded | What to check |
|---|---|---|
| Issuer-provided virtual number | Linked to an eligible card account. Capital One, for example, says its virtual card numbers are tied to its credit-card accounts. | Whether your specific card and account user qualify, how to access the number, and which checkout flows it supports. Capital One says eligible users can access numbers through an online account or mobile app and use autofill in Chrome or Android apps; availability is not universal. Capital One virtual cards and Capital One help. |
| Third-party virtual-card service | Linked to a funding source specified by the service. Privacy says transactions are debited from the linked funding source. | Eligibility, funding, pricing and data practices, as well as merchant and network acceptance and available controls. Privacy says its cards work online with merchants accepting US debit or credit cards; it does not currently offer physical cards or virtual wallet cards. Privacy: How it works and Privacy: How to use a card. |
Before choosing either route, confirm current terms with the provider. Access, supported transactions, and acceptance can depend on the account, location, card network, and checkout flow.
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How do I get and use a disposable number?
- Check your existing card account first. Sign in to the issuer’s app or website and look for its virtual-card feature or help page. Confirm that your card and account are eligible; do not assume the feature is available to every cardholder.
- Review the service’s terms if using a third party. Verify eligibility, funding method, fees, supported locations and networks, and how the provider handles personal and payment information.
- Create or select a number. Check whether it is merchant-locked or single-use and whether you can set a spending limit, pause it, or close it.
- Use it at checkout. Enter the virtual number, security code, and expiration date in the merchant’s payment form, or use a supported autofill option. The merchant must accept that type of card and transaction.
- Keep track of its purpose. Note which merchant or purchase the number is for and any limit or closure rule you set. This makes later charges easier to recognize.
- Monitor the linked account. Review transactions and contact the issuer promptly about anything you did not authorize.
Can I use a virtual card for subscriptions or trials?
Possibly, but check the card’s rules and the merchant’s billing flow first. A subscription may require recurring charges, and a trial may turn into a paid plan. A single-use number is not necessarily closed at the instant you click “Pay,” either.
For example, Privacy says a single-use card closes after a successful initial authorization greater than $1. If the first authorization is successful at $0, or is declined, the card closes automatically 24 hours later. That timing means a merchant’s verification and authorization process can affect when the number closes. Privacy: How single-use cards work.
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For subscriptions, free trials, hotel or rental holds, deposits, refunds, and later adjustments, make sure the number’s controls allow the expected payment pattern. A virtual number does not cancel an underlying subscription. Cancel with the merchant, understand its renewal terms, and check your statements; the FTC advises consumers to dispute billing that continues after cancellation. FTC guidance on subscriptions and free trials.
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Using an alternate number can reduce how often merchants receive your underlying card number. It does not prevent a merchant from committing fraud, protect you if you enter your details on a phishing site, secure a virtual-card account whose login is compromised, or guarantee that a merchant will accept the number. Use strong authentication for issuer or service accounts where available, protect those logins, and review transactions.
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Virtual numbers supplement, rather than replace, your existing card protections and account monitoring. The FTC says federal law limits responsibility for unauthorized credit-card charges to $50 and treats unauthorized charges as billing errors you can dispute. Contact your issuer promptly and follow its reporting and dispute process. FTC: Lost or stolen credit, ATM, and debit cards and FTC: Credit card billing disputes.
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