Fuel Card Fraud: How Fleets Lose Money and How to Stop It

Fuel is the second-largest expense for most fleets, right behind labor. What a lot of fleet managers miss is how much of that fuel spend quietly walks out the door through fraud. A skimmed card here, a personal fill-up on the company account there, a fake receipt that never gets checked against the mileage. None of it looks like much on a single transaction. Added up over a year across a fleet of trucks, it becomes real money.

The frustrating part is that most fuel card fraud is preventable. The tools to stop it already live inside a well-run fuel card program.

This guide breaks down:

• The main types of fuel card fraud
• The warning signs worth watching for
• The specific controls that keep your fuel budget where it belongs

Fuel card fraud is any unauthorized or dishonest use of a fleet fuel card, whether it comes from inside your company or outside of it. It falls into three broad categories, and most fleets deal with more than one.

This one is the most common. This includes:

It also covers softer forms of theft, like padding mileage reports so the numbers don’t raise flags.

This comes from people outside your company. The classic version is card skimming at the pump, but it also includes:

These are the hardest to catch because they involve coordination. Think a station employee colluding with a driver, or fake transactions run through a compromised terminal. These are less common than the first two, but they tend to cost more when they happen.

Understanding the common ways fuel gets stolen is the first step, because you can’t build controls against a threat you haven’t named.

Card skimming is when criminals install a hidden device on a fuel pump that captures your card data as it’s swiped. The stolen information is then used to make unauthorized purchases, often within hours, until someone notices and deactivates the card.

Truck stops and unattended fuel islands are frequent targets because pumps sit outdoors, get heavy traffic, and aren’t always monitored closely. A skimmer can be installed in seconds and can sit collecting data for days before anyone spots it.

Here’s the shift worth knowing about. As payment technology improves and physical skimming gets harder to pull off, criminals are moving toward the account itself. According to reporting from Transport Topics, fraud is increasingly aimed at credential theft and social engineering rather than the pump.

Attackers use AI to build more convincing phishing messages, sometimes impersonating a manager or the fuel card company to pressure an employee into sharing a login or a verification code.

For drivers, a few habits cut the risk significantly:

Fraud almost always leaves a trail in your transaction data. The problem is that nobody looks until the statement arrives and something is already wrong. If you know what to watch for, you can catch most of it early.

One of the most reliable checks is comparing fuel purchased against miles actually driven. If a truck is buying far more fuel than its mileage can account for, the fuel is being diverted, resold, or logged incorrectly.

This is the same reconciliation that keeps your tax reporting clean, and it’s why fuel card data pairs so well with an IFTA reporting process that flags mismatches automatically instead of leaving them for a year-end scramble.

Prevention isn’t one silver bullet. It’s a stack of layers, and each one closes off a different avenue. The good news is that a modern fuel card program gives you most of these tools out of the box. You just have to turn them on and use them.

Card controls are your first and strongest line of defense, and they stop fraud before it happens rather than catching it after. Here are some of the controls we highly recommend you set if able to:

Controls set the guardrails; a policy sets the expectations. A written driver fuel card policy spells out what the card can and can’t be used for, who is responsible for what, and what happens when the rules are broken.

It removes the “I didn’t know” defense and gives you a clear basis for action when something goes wrong. Every driver should sign it, and it should be part of onboarding, not a document that lives forgotten in a drawer.

The faster you see a problem, the less it costs you. Set up real-time alerts so an unusual transaction pings you the moment it clears instead of weeks later.

On top of that, run regular audits comparing receipts to mileage and transactions to assigned routes.

A monthly review catches slow leaks that alerts might not trip, and it signals to drivers that someone is actually watching, which is a deterrent in itself.

Secure card technology matters, but so does the company standing behind the card. When a transaction looks wrong, you want to reach a person who can freeze or reissue a card immediately, not sit in a support queue while the charges pile up.

One fleet administrator who manages a C NRG account put it simply: the online portal is straightforward to use, and card changes take effect right away, so a problem doesn’t turn into a business interruption. That responsiveness is the difference between a five-minute fix and a five-figure loss.

The controls and reporting themselves come with any fuel card program. You can see exactly how the top fuel cards handle fraud in our: Fuel Card Fraud Coverage Comparison. 

Yes, and a good one is central to the whole effort. The card controls, spending limits, merchant restrictions, real-time alerts, and reporting that catch fraud all live inside the fuel card program. A capable provider gives you those tools and helps you configure them for how your fleet actually operates.

The other half is response speed. Industry security experts speaking at a recent NAFA session stressed that limiting exposure comes down to tight controls plus fast action when something slips through. When you suspect fraud, every minute a compromised card stays active is money at risk. A provider who answers the phone and can shut a card down on the spot contains the damage. A provider who makes you wait lets it grow.

This is where working with a smaller, hands-on fuel card company tends to beat a large corporate one. You’re not a ticket number. You get someone who knows your account and can act, which matters far more in a fraud situation than any feature list.

Fuel card fraud is common, but it isn’t inevitable. It comes from Three directions:

• Drivers
• Outside criminals
• Organized schemes

The fleets that lose the least are the ones that combine strong card controls, a clear written policy, real-time monitoring, and a provider who moves fast when something looks off.

Start with the controls you already have access to, put a policy in writing, and build a habit of reviewing your transactions. Those three steps alone will stop the large majority of fraud before it costs you.

If you want help setting up card controls or reviewing where your fleet might be exposed, talk to our team. We’ll walk through it with you.