When a fleet doesn’t have strict spending rules, fuel costs can quietly get out of hand. Fuel costs make up 25–30% of all operating costs, and that number goes up even more when spending isn’t kept in check. Studies show that fleets that aren’t properly managed lose 2–5% of their fuel budget each year to fraud or misuse.
It may not seem like a big deal at first to fill up a few extra times, go to the wrong station, or make small purchases without permission, but over time, they can add up. That’s why it’s so important for growing fleets to have fuel card controls. A good setup does more than just stop fraud. It helps fleet managers keep an eye on costs, give drivers directions, and make sure that fuel use matches up with real work.
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What Are Fuel Card Controls?
Fuel card controls are rules you put on a card that decide when, where, how much, and what a driver can purchase. Without them, a fuel card works like a regular debit card, wide open for misuse, personal purchases, and unauthorized transactions.
With controls in place, you turn that card into a tightly managed tool that serves one purpose: keeping your fleet fueled efficiently and within budget.
5 Fuel Card Controls Every Fleet Should Use
1. Transaction and Spending Limits
This is the most straightforward control. You set a cap on how much can be spent per transaction, per day, or per week, and anything above that cap is automatically blocked.
Start with your vehicle’s tank size. Multiply the gallon capacity by the average fuel price in your area, then add a small buffer for price spikes. That becomes your per-transaction limit. If you also fuel equipment, factor in those tank sizes.
Without this control, a driver can fill up at an overpriced station or, in worst cases, fuel a personal vehicle on the company card. Spending limits stop both problems without any manual effort on your end.
2. Time-Based Restrictions
If your drivers work set hours, your fuel cards should match. Time-based controls let you lock cards to specific days and hours so they only work during authorized shifts.
A driver who drives from 7 AM to 5 PM doesn’t need a fuel card that is still active at 10 PM. Limiting card use to work hours is one of the easiest ways to stop people from using their personal vehicles to fill up and misuse them after hours.
When you set your hours, leave a little extra time on either side, about an hour, for jobs that run late, early starts, or traffic delays. This keeps the card off during non-work hours while still allowing real transactions to go through.
3. Location and Merchant Restrictions
You can limit cards to approved fuel stations or specific states where your fleet actually operates. This does two things: it keeps spending within your negotiated rates and network, and it reduces fraud.
Compromised cards are often used out of state. If your fleet only operates in three states, there is no reason a card should work anywhere else. Setting state restrictions adds a layer of protection that quickly catches fraudulent activity.
Merchant restrictions also help with reporting. When all transactions happen at approved stations, reconciliation is cleaner and easier to audit.
4. Product-Level Controls
This one often gets overlooked. Without product-level controls, a driver can swipe a fuel card for snacks, drinks, or any other items sold at the gas station. Small purchases add up quickly across a large fleet, making monthly accounting a headache.
Product-level controls lock the card to fuel purchases only, or to fuel plus approved maintenance items, such as oil changes or roadside assistance. Every swipe goes toward something that actually moves your business forward.
Some cardlock fuel cards take this even further. They let you restrict the specific type of fuel a driver can purchase at the pump. This prevents drivers from accidentally putting the wrong fuel in a vehicle, which is an expensive mistake that product controls can easily prevent.
5. Driver and Vehicle Card Mapping
Every card should be tied to a specific driver or vehicle. When a transaction happens, you know exactly who made it. No guessing, no shared cards, no gray areas.
You have two options here. Driver cards stay with one person and require their PIN every time they fuel. Vehicle cards stay in the truck, but each purchase is activated with the driver’s own ID, so even when drivers switch vehicles, every transaction is still traceable.
Shared cards kill accountability. If three drivers share one card and something looks off, you have no way to track it back to the right person. Card mapping solves that completely.
Hard Limits vs. Soft Limits
Most fuel card programs let you choose between hard and soft limits. A hard limit strictly blocks any transaction that exceeds your set parameters, no exceptions. A soft limit allows the purchase to go through, but flags it and sends you an alert for review.
Neither is better across the board. Hard limits work well for tightly controlled fleets where exceptions to the rules are rare. Soft limits give you flexibility for drivers who occasionally encounter legitimate edge cases, such as a price spike in a remote area.
Many fleet managers use hard limits for core rules and soft limits for secondary controls, so drivers are not left stranded while oversight remains in place.
Using Alerts and Your Fuel Card Portal
Step one is to set up controls. Step two is to keep an eye on activity.
Most fuel card companies have an online portal where you can see all of your transactions, see how much each driver or vehicle is using, and pull reports to find patterns. Make it a habit to check it often, at least once a week for smaller fleets and more often as you grow.
Three alert types are worth setting up from the start:
- Exception alerts notify you when a transaction occurs outside your set parameters, even if the purchase still goes through. These are useful when you want visibility without being too restrictive during an adjustment period.
- E-receipts send you an instant notification for every transaction. This works well for small fleets. For larger operations, the volume gets overwhelming fast.
- Fraud alerts flag suspicious activity automatically and can shut down a card before more damage is done. If you get a fraud alert, always verify the transaction with the driver before reactivating the card. Approving unverified charges can put your fraud coverage at risk.
Getting Your Controls Set Up Right
Before you go live, here are some useful tips:
- Check your controls in the first few weeks to see if any real transactions are being turned down. Your caps might be too tight if drivers are having trouble filling up normally. Change them and tell drivers to report problems right away instead of trying to get around the system.
- Make sure every driver has a unique PIN. Avoid obvious numbers like birthdays. A unique PIN per driver is one of the simplest accountability tools you have.
- Set your approved states based on where you actually operate. If your fleet expands into new areas, update the settings before drivers hit the road, not after they call in a declined card.
Keep Fuel Spending Under Control
Fuel card controls do not slow your fleet down. They protect your budget, improve accountability, and give you clear data on where your money is going. Fleets in the Asia Pacific region that adopted digital fuel cards and monitoring systems achieved 3–8% cost reductions through improved visibility and smarter purchasing decisions.
That kind of savings does not come from luck. It comes from putting the right controls in place and actually using them.
Start with spending limits and driver mapping. Add time and location restrictions once you have the basics dialed in. Then use your portal and alerts to stay on top of activity and refine your settings over time.
Visit getfuelcard.com, call +1 (905) 901-1601, or email hello@getfuelcard.com to learn how fuel card solutions can help your fleet control fuel expenses and operate more efficiently.