Multi-State IFTA Fuel Tax Estimator

Enter miles driven and fuel purchased in each state to see your estimated net IFTA tax or credit, fleet MPG, and fuel cost per mile.

Your Quarter

Miles & fuel by state

Example values shown

Gallons = diesel purchased in that state (tax-paid). Fuel $ is optional and is only used for cost per mile.

Estimated Net IFTA Tax

$0.00

Sum of each state's net taxable gallons × that state's diesel rate

Fleet MPG

—

Total miles ÷ total gallons

Total Miles / Gallons

0 mi · 0 gal

Fuel Cost per Mile

—

Total fuel $ ÷ total miles

Net IFTA Tax per Mile

—

Net tax (or credit) ÷ total miles

Share of miles by state

State-by-State Breakdown

A positive net means tax owed to that state. A credit means you bought more fuel there than you burned.

State Miles Gallons bought Taxable gal Net gal Rate / gal Tax owed / (credit)

Sources & notes

Arkansas clear diesel rate of $0.285/gal also published by the Arkansas Department of Finance and Administration (Motor Fuel Tax Rates).

  • U.S. jurisdictions only. Canadian provinces are not included. Oregon uses a weight-mile tax instead of an IFTA fuel tax and is not listed.
  • Kentucky and Virginia rates shown include their surcharges ($0.105 and $0.143). Indiana reports a surcharge line on the return, so check Indiana against the official matrix.
  • Assumes all purchased fuel was tax-paid and used in trucks reported on your IFTA license. Temporary rate changes and tax holidays are noted in each quarter's official footnotes.
  • Rates change every quarter. Estimates only, not tax advice. Confirm rates and your return with your base jurisdiction before filing.

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