Purchasing Card

A purchasing card, often called a p-card or procurement card, is a payment card issued by a bank to an organisation so that authorised employees can buy goods and services on its behalf. It is used for routine, relatively low-value purchases such as office supplies, maintenance parts, subscriptions and small services, replacing the slower cycle of purchase orders, invoices and cheques. The organisation, not the employee, is liable for the spending and pays the card issuer directly.

Purchasing cards are one type of commercial card, alongside travel and entertainment cards, fleet cards and virtual cards for supplier payments. They are distinct from a corporate card used mainly for employee travel, although some issuers combine the two in one programme. Public bodies, universities, hospitals and large companies are heavy users, and many government purchasing programmes run on p-cards.

An organisation signs a programme agreement with an issuing bank, which sets a total credit limit, billing cycle and reporting tools. A programme administrator in the finance or procurement team then issues cards to named employees, each with its own controls. Employees use the card like any other credit card at suppliers that accept the relevant network, and transactions flow through the usual issuer and acquirer system.

Instead of reimbursing individuals, the organisation receives a consolidated statement and pays the issuer in a single payment, often monthly. Cardholders or their managers review and approve transactions, attach receipts and assign accounting codes, usually in the issuer's online platform or an expense system linked to the company's accounting software.

Controls are the main reason organisations accept the risk of putting cards in many hands. Typical settings include:

• Transaction and cycle limits. A maximum value per purchase and per month for each card.
• Merchant category blocks. Allowing or blocking supplier types by merchant category code, for example preventing use at casinos, cash outlets or travel providers.
• Approval workflows. Requiring managerial sign-off for transactions above a threshold, or after the fact during monthly reconciliation.
• Restrictions on splitting. Policies forbidding employees from breaking a large purchase into several smaller ones to avoid limits, with monitoring to detect it.

Newer programmes add real-time controls, such as single-purchase virtual cards generated for a specific supplier and amount.

A feature that distinguishes purchasing cards from consumer cards is enhanced transaction data. Card networks support several levels of detail. Basic level 1 data includes the merchant, date and amount. Level 2 adds information such as sales tax, a customer reference and the merchant's tax identifier. Level 3 adds line-item detail, such as product codes, quantities, unit prices and freight. Suppliers that pass level 2 or level 3 data on eligible commercial cards can qualify for lower interchange fees than they would otherwise pay, and buyers gain richer data for spend analysis and tax recovery.

Organisations adopt p-cards mainly to cut the cost of processing small purchases. Each purchase order and invoice requires handling by procurement and accounts payable staff, and studies by industry groups have long found that the administrative cost of a paper purchase can exceed the value of the goods. Other benefits include faster delivery from suppliers, which are paid within days, consolidated data on spending by supplier and category, and rebates paid by issuers based on programme volume.

Suppliers gain quick payment and lower collection risk, but pay acceptance fees, which can be higher for commercial cards than for consumer cards because commercial card interchange is not capped in many markets.

The main risks are misuse by employees, such as personal purchases or buying from related suppliers, and external fraud on lost or compromised cards. Purchasing card misuse is a recurring topic in public sector audit reports, so programmes rely on internal controls such as separation of duties between cardholders and approvers, regular statement review, analytics that flag weekend or unusual-merchant spending, and periodic audits. Card issuers also apply fraud detection to unusual transactions and can block cards instantly. Programme agreements usually set out liability for unauthorised use, and some issuers offer insurance against employee misuse.

Purchasing cards cover the high-volume, low-value end of business purchasing. Large recurring supplier invoices are still typically paid by bank transfer or ACH, which carries no card fee for the supplier. Between the two, many organisations now use virtual card programmes run from accounts payable, in which the buyer pays existing invoices with a card number sent to the supplier, combining card rebates with invoice-based control.