7 Common IFTA Reporting Mistakes (and How to Avoid Them)

The International Fuel Tax Agreement (IFTA) requires interstate carriers to report fuel purchases and miles driven in each jurisdiction. While the concept is straightforward, the execution is where many carriers run into trouble.

Mistake 1: Rounding Miles. IFTA requires exact mileage by jurisdiction. Rounding up or down, or estimating miles rather than tracking them precisely, leads to incorrect tax calculations. GPS-based tracking eliminates this issue entirely.

Mistake 2: Missing Fuel Receipts. Every fuel purchase must be documented with date, seller name, seller address, number of gallons, fuel type, unit number or plate, and purchaser name. Missing receipts can result in lost fuel tax credits. Always use fleet fuel cards for automatic documentation.

Mistake 3: Incorrect Jurisdiction Assignment. Miles driven on toll roads, non-IFTA jurisdictions, or during deadhead operations must be properly categorized. Automated GPS tracking assigns jurisdiction correctly based on actual vehicle position, not driver estimates.

Mistake 4: Late Filing. IFTA returns are due quarterly — April 30, July 31, October 31, and January 31. Late filing triggers penalties and interest in every jurisdiction where you owe taxes. Set calendar reminders or use automated filing services.

Mistake 5: Forgetting Non-Revenue Miles. All miles count for IFTA purposes, including deadhead miles, maintenance trips, and repositioning. Some carriers only track loaded miles, which understates their total distance and skews per-mile fuel consumption calculations.

Mistake 6: Not Reconciling with Fuel Card Data. Your fuel card statements should match your IFTA records. Discrepancies suggest either missing transactions or incorrect mileage data. Monthly reconciliation catches errors before they compound into quarterly filing problems.

Mistake 7: Manual Data Entry. Spreadsheets and paper logs are error-prone by nature. Transposing numbers, miscategorizing states, or forgetting to enter data entirely are common mistakes that automated IFTA reporting systems prevent. FleetVision's IFTA module uses GPS data to automatically calculate miles by jurisdiction and match them with fuel purchases for accurate, audit-ready quarterly reports.