Fuel Card Guide: Compare Cards, Save Money, and Avoid Hidden Fees
Fuel is your biggest variable expense — $60,000-$90,000 a year for most owner-operators. The right fuel card saves you $3,000-$8,000 annually. The wrong one quietly costs you money in fees you never notice. Here's how they actually work.
How Fuel Card Discounts Actually Work
Fuel card "discounts" sound great, but the way they're calculated determines whether you actually save money.
How it works: You pay the posted pump price minus a fixed discount per gallon.
Example: Pump price $3.89/gal, card discount $0.08/gal = you pay $3.81/gal
Easy to verify. You can compare against the pump price and confirm your savings instantly.
How it works: You pay a wholesale cost (like OPIS rack price) plus a fixed margin.
Example: OPIS rack $3.40 + $0.19 margin = you pay $3.59/gal (vs $3.89 retail)
Bigger savings, but harder to verify. You need to know the rack price to confirm.
How it works: The card company negotiates chain-specific discounts. Savings vary by location.
Example: TA/Petro might be $0.12/gal off, but Pilot might be $0.03/gal off on the same card.
Can be excellent, but check your actual statements. Some "optimized" prices are barely discounts.
Fuel Card Comparison
| Card | Network | Discount Type | Typical Savings | Fees | Best For |
|---|---|---|---|---|---|
| RTS Fuel Card | All major + independents | Cost-plus (OPIS) | $0.15–$0.40/gal | No annual fee | O/Os, small fleets |
| TCS Fuel Card | All major + independents | Cost-plus (OPIS) | $0.10–$0.35/gal | No annual fee | O/Os using TCS factoring |
| Comdata | All major chains | Optimized network | $0.05–$0.25/gal | $2-$5/mo per card | Fleets needing controls |
| WEX / EFS | 90% of truck stops | Optimized network | $0.05–$0.20/gal | $2-$4/mo per card | Established fleets |
| Pilot Flying J | Pilot/FJ only | Retail discount | $0.03–$0.08/gal | No fee | Drivers on Pilot routes |
| Loves | Loves only | Retail discount | $0.03–$0.08/gal | No fee | Drivers on Loves routes |
| Mudflap | Independents + some chains | Cost-plus (OPIS) | $0.15–$0.50/gal | No fee (app-based) | Drivers near independents |
Hidden Fees That Eat Your Savings
The discount is the headline. The fees are the fine print. Here's what to watch for:
Transaction Fees
$0.50-$2.00 per fuel transaction. At 4 fill-ups per week, that's $100-$400/year eating into your discount.
Out-of-Network Fees
$1-$5 per transaction when you fuel outside the card's preferred network. Some cards charge $5+ for non-partner stops.
Monthly/Annual Fees
$2-$10/month per card. Small for one card, but fleets with 10+ cards pay $240-$1,200/year in fees alone.
Inactivity Fees
$3-$10/month if you don't use the card for 30-60 days. Forgot about a spare card? It's quietly billing you.
Cash Advance Fees
5-15% of the withdrawal amount. A $200 cash advance could cost you $10-$30 in fees.
Maintenance Purchase Markup
Some cards allow non-fuel purchases (tires, oil) but mark them up 2-10% over retail price.
IFTA Tracking and Tax Benefits
Automatic IFTA Tracking
Most fuel cards automatically record gallons, price, and location by state. This data feeds directly into your IFTA reporting — saving hours of manual record-keeping every quarter.
- Gallons by state (automatic)
- Total fuel spend by period
- Exportable reports for your accountant
- Backup documentation for IFTA audits
Tax Deduction Documentation
Fuel is your biggest deductible expense. Fuel card statements provide the documentation the IRS requires — date, amount, location, gallons for every transaction.
- Itemized statements replace receipt boxes
- Year-end summary for tax prep
- Audit-ready documentation (3 years)
- Separate from personal expenses automatically
Fuel Tax Savings Strategy
Some states have significantly lower fuel taxes. Planning your fuel stops strategically can save $500-$2,000/year.
- Low tax: SC, NJ, MS, VA, OK
- High tax: CA, PA, WA, IN, IL
- Your fuel card statement shows exactly where you fueled
- IFTA refunds you for overpaid state taxes
Fuel Card Security Controls
Fuel theft is a real problem — both external skimming and internal misuse. Good fuel cards offer controls:
The Insurance Connection
Need help understanding how your operating costs affect your insurance premiums?
Call RMS: 208-800-0640Frequently Asked Questions
Can I use a personal credit card for fuel instead?
You can, but you'll miss out on trucking-specific discounts ($0.10-$0.40/gal), IFTA auto-tracking, and the ability to separate business from personal expenses. Even a 2% cash-back credit card only saves $0.06-$0.08/gal at $3.50 diesel — far less than most fuel cards. Use a fuel card for fuel, a business credit card for everything else.
Do I need good credit to get a fuel card?
Most trucking fuel cards don't require a credit check because they're prepaid or billed weekly. Cards like RTS, TCS, and Mudflap are available to new owner-operators with no credit requirements. Comdata and WEX may check credit for net-billing terms. If your credit is thin, start with a no-credit-check card and upgrade later.
Should I get a chain-specific card or a universal card?
Both. Get a universal card (RTS, TCS, Mudflap) for the best per-gallon savings across all locations. Then add a free chain-specific loyalty card (Pilot, Loves) for points and perks at the stops you visit most. The universal card handles cost savings; the loyalty card handles showers, parking priority, and points.
How do factoring companies interact with fuel cards?
Some factoring companies (like TCS) offer fuel cards as part of their service — your load payments go to the factoring account and you fuel from the same account. This can be convenient but watch for stacked fees. Make sure the combined factoring fee + fuel card fee doesn't exceed what you'd pay separately. Compare the total cost, not just the fuel discount.