IFTA fuel tax and cost-per-mile math, without the guesswork.
Official quarterly IFTA rates for 48 U.S. states and 10 Canadian provinces, plus the two numbers that decide whether a load is worth taking. No signup, no spreadsheet, no fluff.
Open the IFTA calculator →Three tools, one job: know your numbers
Every calculator runs entirely in your browser. Your mileage and cost data never leaves your device.
IFTA Fuel Tax Calculator
Enter miles and gallons by jurisdiction. Get your net amount due — or your refund — for the quarter, with the per-jurisdiction breakdown.
Cost Per Mile Calculator
Separate fixed costs from variable costs and find out what each mile actually costs you to run.
IFTA Tax Rate Tables
The full quarterly rate matrix for diesel and gasoline, every jurisdiction, sourced from the official state filing form.
Where the rates come from
Fuel tax rates are set jurisdiction by jurisdiction, every quarter, and they change more often than most drivers expect. This site reads them from the published state filing form and republishes them with the quarter and the source date attached.
Quarterly, not "current"
IFTA rates are fixed for a calendar quarter. Every rate on this site is labelled with the exact quarter it applies to, so you never file against a stale number.
Sourced, not estimated
Rates come straight from the official IFTA, Inc. tax rate matrix for the quarter, with the matrix's own update date shown alongside. If a jurisdiction reports no rate, this site shows that instead of inventing one.
Who this is for
Owner-operators
One truck, one authority, one quarterly return. You need the answer in two minutes, not a fleet platform.
Small fleets
Two to twenty trucks. Check your carrier's settlement numbers before you sign the return.
New authorities
Just got your own authority and nobody explained how the quarterly fuel tax actually works. Start here.