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🗓️ Last updated: May 2026·Calculation assumptions shown below
🚛 Owner-Operator Tool

🧾 IFTA Fuel Tax Calculator

Calculate your quarterly IFTA balance across all 48 states. Enter miles driven and fuel purchased per state — get your tax owed or refund estimate.

⚠️
Estimate Only — Not a Quote
IFTA tax rates change periodically. This calculator uses rates current as of early 2025 — verify current rates at your base state's IFTA portal before filing. This is a planning estimate, not a substitute for official IFTA filing software. Always get quotes from multiple providers before making financial decisions. Results here are for planning and budgeting purposes only.
⛽ Fuel & Miles Data
How IFTA works: You report total miles and gallons purchased in each state. IFTA calculates if you owe additional tax to states where you drove more than you bought fuel, or if you're owed a refund from states where you bought more than you used.
🗺️ Miles by State (top lanes)

Enter miles driven in each state this quarter. Fuel purchased in those states will be calculated from your total.

Estimated IFTA Balance
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Avg Fleet MPG
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Gallons Used
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Net Gallons
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Frequently Asked Questions

Is the IFTA Fuel Tax Calculator for Owner-Operators — All free to use?
Yes — completely free with no account required. All QuicklyFig calculators are funded by display advertising so you never pay to use them.
How accurate are these results?
Results are based on industry-standard formulas and current benchmarks. They are estimates for planning and decision-making purposes. Verify with professionals or suppliers for binding commitments.
Can I save or share my calculation results?
Use the 'Email My Results' button to send your calculation directly to your inbox. You can also print any page from your browser with Ctrl+P (Windows) or Cmd+P (Mac).

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