IFTA Tax Calculator
Estimate your quarterly IFTA fuel tax across every state you ran. Enter your miles per state and your truck's MPG.
Miles by state
Estimated tax owed
$165.13
6.50 MPG fleet average across 2,200 miles.
| State | Gallons | Rate/gal | Tax |
|---|---|---|---|
| Arkansas | 61.5 | $0.2620 | $16.12 |
| Oklahoma | 92.3 | $0.5039 | $46.51 |
| Texas | 184.6 | $0.5552 | $102.50 |
Gross estimate before fuel tax you already paid at the pump. Confirm official rates with your base jurisdiction before filing.
How this is calculated
IFTA settles fuel tax across state lines. Instead of paying each state at the pump, you file one quarterly return and it redistributes what you owe based on where you actually drove.
The math runs in three steps. First, your fleet miles per gallon: total miles divided by total gallons burned. Second, the taxable gallons for each state: the miles you ran there divided by that fleet MPG. Third, the tax: those gallons times the state's rate per gallon. Indiana, Kentucky, and Virginia add a surcharge with no pump credit, so it shows as its own line.
The rate table here loads current-quarter numbers for reference. Rates change every quarter, so this is an estimate to sanity-check against, not a filing document. Confirm the official rate with your base jurisdiction before you submit a return. iTrucked keeps the rates current and assembles the whole return from the trips you already logged.
Common questions
What is IFTA and who has to file?
How is the tax actually worked out?
Why do Indiana, Kentucky, and Virginia show a surcharge?
When is the IFTA return due?
Is this exact enough to file with?
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