IFTA Calculator

IFTA CALCULATOR Fuel Tax Filing Use: quarterly totals + clean summaries

IFTA Fuel Tax Calculator: miles + purchases → quarterly totals you can trust.

Enter jurisdiction miles and fuel purchases to estimate IFTA totals using quarterly rates. Built for owner-operators and fleets that want a faster workflow than spreadsheets — with clear summaries you can review before you file.

Calculator How it works Quarterly rates Examples FAQ
Start Free IFTA Calculation How It Works Tools Hub
  • Track miles by state/province and purchases by fuel type for the quarter.
  • Apply quarter-specific rates (avoid “last year’s table” mistakes).
  • See net tax due/credit by jurisdiction with a clean rollup.
  • Save time on review: totals, averages, and quick sanity checks.
Best practice
Quarter-specific rates
Common mistake
Missing jurisdictions
Time saver
Clean rollups
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Desktop-only tool

The Truck Ledger — IFTA Calculator

This IFTA calculator is available on desktop & laptop computers only (not mobile). For accuracy and easier filing, please open this page on a larger screen.

Tip: If you need help reconciling miles or fuel receipts, email your quarter totals + jurisdiction breakdown and we’ll sanity-check it.
Open on Desktop to Use Calculator Email Support
If you’re on a tablet with a keyboard, try “Desktop site” in your browser settings.

IFTA Calculator — Quarter Filing (US Miles & US Gallons)

Calculates IFTA tax due / credit by jurisdiction using your selected quarter’s rate table. All entries are in US miles and US gallons.

Autosave on this device Rates: loading…

Step 1 — Quarter totals (required)

US miles + US gallons

Tip: Enter quarter totals first. Fleet MPG = Total Miles ÷ Total Gallons. Jurisdiction taxable gallons are derived from that.

Step 2 — Jurisdiction line items

0 lines

Add one line per jurisdiction: miles traveled there + gallons purchased there (optional, used for credits).

Jurisdiction Miles Purchased Gal Fuel Unit Notes Remove
Add a line to begin…

Behind the scenes, this creates your rollups: taxable gallons, net gallons, and tax due/credit.

Step 3 — Summary (Tax Due / Credit)

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Formula: Fleet MPG = Total Miles ÷ Total Gallons. Taxable Gal = Jur Miles ÷ Fleet MPG. Net Gal = Taxable − Purchased. Tax = Net × Rate (negative = credit).

Jurisdiction Miles Purchased Taxable Net Gal Rate Tax
Add at least one jurisdiction line to see tax due/credit.

* If jurisdiction miles/gallons don’t reconcile to quarter totals, the Running Totals notice will warn you.