The basic rule: business purpose only
A corporate card draws on company credit, so its use should be limited to expenses that are directly tied to your work -- client meetings, business travel, supplies, and similar costs. Personal meals, spending on family members, personal shopping, or a pattern of charges at odd hours unrelated to work are the classic cases that are hard to justify if the card statement is ever reviewed. Before using the card, it's worth quickly asking yourself whether the charge is clearly business-related and would look reasonable to someone reviewing it later.
What's typically allowed versus restricted
Commonly approved categories include client meals, office and business supplies, travel costs like transportation and lodging, and work-related subscriptions or reference materials. Categories that are commonly restricted or banned outright include gift cards, adult entertainment venues, personal life-event gifts, and personal travel. Since the exact list varies by company policy -- often enforced through merchant-category blocking on the card itself -- checking your organization's written policy when you're unsure beats guessing.
Keep more than just the card receipt
A card receipt alone often isn't sufficient support after the fact. For a client meal, note who attended and the business purpose; for anything that could be read as entertainment, note the counterpart's organization and the purpose of the meeting. This documentation is what lets you explain the charge convincingly during an internal audit or a tax review, and most companies require it to be attached to an expense report within a set number of business days of the charge.
Spending limits and approval requirements
A corporate card isn't issued freely the way a personal card is -- it typically requires manager sign-off and finance department review before issuance. Monthly and per-transaction limits often vary by role or department, and any purchase above those limits, such as a large team event, usually needs pre-approval through a purchase request rather than being charged first and explained later.
Settlement deadlines and the cost of missing them
Most companies require charges to be reported and documented within a set window -- often within a week of the charge, or by a fixed date the following month. Missing that deadline typically triggers a system warning, and repeated lateness can lead to the card being suspended, forcing you to pay out of pocket and seek reimbursement afterward. Chronic late settlement can also affect the company's own accounting and tax filing schedule, which is one reason it often factors into a manager's assessment of an employee.
The real risk behind personal misuse
Confirmed personal use of a corporate card is treated as more than a policy violation in many jurisdictions -- depending on the amount and pattern, it can be classified as embezzlement or a breach of fiduciary duty, potentially leading to internal discipline, a requirement to repay the amount, and in serious or repeated cases, criminal referral. When a charge is genuinely ambiguous, checking with a manager or the finance team before making the purchase is the safest option by a wide margin.