Purchasing cards are designed to make low-dollar procurement faster and more efficient. But in government and higher education, p-card programs often grow quickly — sometimes faster than the controls designed to manage them.

When issues surface, they usually appear during a p-card audit. And while audits may uncover the problems, most p-card policy violations originate long before an auditor gets involved.

For P-card Administrators, Procurement Directors, and Finance Directors, understanding the most common violations is the first step toward preventing them — and reducing audit findings before they happen.

Below are the most common p-card policy violations that consistently show up in audits, along with practical guidance for preventing them.

1. Merchant Category Code (MCC) Violations

What auditors see:
Transactions at merchants that are explicitly prohibited by p-card policy.

Common examples:

• Restaurants or bars
• Gift cards
• Big-box retailers selling mixed-use items
• Online marketplaces with weak item-level controls

MCC violations are one of the easiest findings for auditors to identify, especially when card programs rely on manual reviews. Even a single prohibited merchant can raise questions about the effectiveness of program controls.

Why this happens:

• MCC blocks are outdated or incomplete
• Exceptions are granted but not monitored
• Reviews focus on receipts, not merchant risk patterns

How to prevent it:

• Regularly review MCC block lists
• Monitor transactions by MCC, not just by cardholder
• Flag first-time or unusual merchants for follow-up

2. Personal or Non-Business Purchases

What auditors see:
Purchases that appear personal, mixed-use, or unrelated to official business.

Common examples:

• Clothing
• Electronics with no business justification
• Household items
• Subscriptions tied to personal accounts

Even when dollar amounts are small, personal purchases create outsized risk. They raise concerns about training, enforcement, and tone at the top — especially in public sector environments.

Why this happens:

• Cardholders misunderstand allowable purchases
• Supervisors approve transactions without scrutiny
• Policies are vague or outdated

How to prevent it:

• Require clear business purpose descriptions
• Train supervisors on what approval actually means
• Review repeat purchases by the same cardholder

3. After-Hours, Weekend, or Holiday Spending

What auditors see:
Transactions occurring outside normal business hours, often without additional documentation.

These purchases aren’t always improper — but they frequently trigger audit scrutiny because they fall outside expected purchasing behavior.

Common red flags:

• Late-night transactions
• Weekend purchases at retail stores
• Holiday spending without explanation

Why this happens:

• No monitoring based on transaction timing
• Reviews focus only on receipts, not patterns
• After-hours access is not restricted

How to prevent it:

• Flag transactions occurring outside business hours
• Require justification for after-hours spending
• Look for repeated timing patterns, not one-offs

4. Lack of Supervisor Review or Approval

What auditors see:
Transactions that were:

• Not reviewed
• Auto-approved
• Approved by someone without proper authority

This is one of the most common and most preventable p-card audit findings.

From an audit perspective, missing or weak approvals signal a breakdown in internal controls — regardless of whether the purchases themselves were appropriate.

Why this happens:

• Approval workflows are unclear
• Supervisors are overloaded
• Reviews become “rubber-stamp” exercises

How to prevent it:

• Enforce timely review requirements
• Monitor approval rates and turnaround time
• Identify supervisors approving unusually high volumes

5. Split Transactions to Avoid Limits

What auditors see:
Multiple transactions to the same vendor, on the same day, just under approval or dollar thresholds.

Split transactions are a classic audit red flag and are often interpreted as intentional circumvention of controls.

Why this happens:

• Cardholders are unaware of limits
• Pressure to complete purchases quickly
• Lack of transaction-level pattern analysis

How to prevent it:

• Monitor same-day, same-vendor transactions
• Educate cardholders on thresholds
• Escalate repeated patterns, not isolated incidents

6. Missing or Inadequate Documentation

What auditors see:
Receipts that are:

• Missing
• Illegible
• Incomplete
• Uploaded late

Even when purchases are valid, poor documentation almost always results in audit findings.

Why this happens:

• Manual receipt collection
• No follow-up on missing documentation
• Over-reliance on cardholders to self-correct

How to prevent it:

• Track missing receipts in real time
• Follow up before the review period closes
• Identify habitual late submitters

7. Dormant or Inactive Cards Remaining Open

What auditors see:
Active cards assigned to employees who:

• Changed roles
• Transferred departments
• No longer require purchasing authority

Dormant cards represent latent risk — they may not show activity, but they weaken overall program governance.

Why this happens:

• Card lifecycle reviews are infrequent
• HR and procurement processes aren’t aligned
• No periodic cardholder validation

How to prevent it:

• Conduct periodic cardholder reviews
• Monitor inactivity thresholds
• Automatically flag cards with long periods of inactivity

Why These Issues Keep Showing Up in P-Card Audits

The common thread across these violations is visibility.

Most p-card administrators aren’t lacking policy. They’re lacking:

• Time
• Tools
• Ongoing insight into transaction patterns

As a result, issues accumulate quietly — until a p-card audit brings them to light.

The Takeaway for P-Card Administrators and Finance Leaders

A clean p-card audit rarely comes from last-minute cleanup. It comes from ongoing oversight, clear accountability, and timely visibility into how cards are actually being used.

By focusing on the most common policy violations — and addressing them as part of regular program management — procurement and finance teams can:

• Reduce audit findings
• Strengthen compliance
• Spend less time reacting and more time governing

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