Free owner-operator tool

IFTA Fuel Tax Calculator

Estimate your quarterly IFTA fuel tax before you file. Enter the miles you ran and gallons you bought in each state, and we'll calculate your fleet MPG, taxable gallons, and what you owe or get credited — jurisdiction by jurisdiction.

Miles driven

Gallons bought

Tax rate $/gal

Miles driven

Gallons bought

Tax rate $/gal

Miles driven

Gallons bought

Tax rate $/gal

IFTA tax rates change every quarter and differ by state. The rates above are examples — replace each one with the current quarter's diesel rate for that jurisdiction from iftach.org.

1 free calculation — create a free account for unlimited use

Enter your states and hit Calculate to see your IFTA total.

Stop dreading quarterly filings

IFTA is just one piece. Create a free account for the 12-Step Business Foundation Guide — including how to set up ELD + IFTA the right way — plus a searchable glossary and readiness diagnostic.

Educational mentorship — not tax advice.

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