Expert article

The hidden costs of government P-cards: How to keep convenience from overruling control.

Picture a typical month inside your agency.

  1. A program manager swipes a P-card to buy office supplies from a marketplace.
  2. A field supervisor uses theirs for safety gear on a weekend.
  3. A clerk pays an urgent invoice by card instead of routing a purchase order.

The payments go through, the work continues and, on the surface, nothing looks broken. Then Finance tries to reconcile statements against grants, object codes and contracts.

  • Some receipts are missing; a handful of charges sit just under your single-purchase threshold.
  • More spend than you expected has drifted to non-contract suppliers.
  • Internal auditors or your inspector general asks for detail on certain transactions.

That’s when it starts to dawn on you how much of your purchasing has slid into a gray zone.

P-cards are designed to simplify low-dollar buys. Used well, they reduce paperwork and speed up small, legitimate purchases. Used as an all-purpose workaround, they create exactly the kind of hidden costs and risks you’ve been trying to eliminate in your broader procurement strategy.

P-cards solve small problems fast. But unmanaged, they quietly create much bigger ones.

Why P-cards are so attractive to agencies.

P-cards exist for good reasons, and most government teams feel those benefits every day.

When your program staff members use P-cards appropriately, your agency gets:

  • Faster purchasing for true micro-transactions, especially when a full requisition and PO would take longer than the purchase itself.
  • Reduced paperwork and fewer low-value POs and invoices for Accounts Payable to process.
  • Flexibility in emergencies or when staff are in the field and need to act quickly.

At the federal level, charge card programs process tens of billions in annual spend, with an average transaction amount of around $400.1 At the state and local level, large counties and cities run P-card programs that handle tens of millions of dollars per year and hundreds of thousands of transactions. It’s clear that card-based purchasing isn’t going away.

The problem isn’t that P-cards exist. It’s when the line blurs between “small, controlled card buys” and “everyday purchasing”. Put simply, the issue occurs when card programs expand faster than the policies, controls and analytics meant to keep them in check.

P-cards should speed up micro-purchases. Not become the default way your agency buys everything.