Virtual cards
Virtual cards are payment card credentials (a card number, CVV, and expiry date) that exist digitally rather than as physical plastic. They let businesses make online or contactless payments with added control, security, and programmable spend rules.
Virtual cards are issued instantly through API calls and can be configured with a range of controls impractical with traditional plastic cards. A virtual card can be created as single-use (valid for one transaction only), merchant-locked (only authorizing at a specified merchant), amount-capped (declining any transaction above a set limit), or time-limited (expiring automatically after a defined period).
These controls make virtual cards the preferred instrument for B2B payment use cases where spend governance is critical: employee expense management, corporate travel booking, vendor payment, advertising spend, and supplier disbursements. Each card can be associated with a specific cost center, project, or budget, creating an audit trail that traditional payment methods cannot match.
In payout use cases, virtual cards enable platforms to push funds to recipients instantly, without requiring a bank account. The recipient activates the virtual card and spends directly, or transfers to a bank account via an ATM or linked account.
Virtual cards close the governance gap in corporate payments. Every virtual card creates a discrete, auditable payment instrument with built-in controls, replacing the open-ended risk of shared physical cards or unrestricted bank transfers with programmable spend policies enforced at the transaction level.
- Not all merchants and payment terminals accept virtual card credentials
- Single-use cards require operational processes to generate and distribute at scale
- Integration with expense management systems requires custom workflow design
- Cross-border virtual card programs must comply with local card scheme rules
- Card credential security requires tokenization and secure distribution mechanisms
A global consulting firm issues project-specific virtual cards to 2,000 consultants for client-related expenses. Each card is pre-loaded with the approved project budget, locked to relevant merchant categories, and linked to the client project code in the firm's ERP. End-of-month expense reconciliation time drops from 5 days to 4 hours, and out-of-policy spending drops by 91%.
Related Concepts
Nium's card issuing API enables businesses to generate virtual cards in real time across 30+ markets. Virtual cards issued through Nium can be configured with merchant restrictions, spend limits, validity windows, and real-time transaction notifications, all managed programmatically under Visa and Mastercard schemes.
Answers you didn't know you needed.
What is a single-use virtual card?
A single-use virtual card is generated for one specific transaction and becomes invalid after that payment is made. It is commonly used for B2B supplier payments and online purchases where credential security is a priority.
Can virtual cards be used internationally?
Yes. Virtual cards on major schemes (Visa, Mastercard) are accepted wherever those networks are supported globally. Cross-currency transactions are handled by the issuer's FX rates at point of authorization.
How are virtual cards more secure than physical cards?
Virtual cards eliminate physical theft risk. With single-use or merchant-locked configurations, even if credentials are intercepted, they cannot be reused or used at alternative merchants.
How quickly can virtual cards be issued?
Through Nium's card issuing API, virtual card credentials can be generated in milliseconds, making programmatic, at-scale issuance practical for per-transaction supplier cards or instant employee expense cards.
How do I issue virtual cards through Nium?
Nium's Card Issuing API enables programmatic virtual card creation, specifying card controls, funding amounts, and validity periods in a single API call. Virtual cards are returned with card credentials immediately, ready for use. Contact Nium to set up a card issuing program.