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IFTA Quarterly Tax Calculator

For owner-operators and small fleets. Enter your miles by state and fuel purchases — get a complete IFTA report ready to file. No software subscription. No bookkeeper needed.

Quarter info

Total miles divided by total gallons. Average truck: 5.5-7.5 MPG.

Miles by jurisdiction

State / ProvinceMiles

Fuel purchased by jurisdiction

State / ProvinceGallons

Your IFTA Report

$0.00
Total tax due (or refund)
Total miles 0
Total gallons purchased 0.0
Taxable gallons used 0.0
Tax already paid at pump $0.00
Tax owed total $0.00
Per-state breakdown
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How this works

IFTA (International Fuel Tax Agreement) requires interstate truckers to file quarterly fuel tax based on miles driven in each jurisdiction. We use 2026 IFTA rates — but rates change quarterly. Always verify with the current IFTA-101 rate sheet from your base state's DOT before filing.

What you enter

Miles driven in each state/province this quarter, plus total gallons purchased in each. Two simple tables.

What we calculate

Fleet MPG, taxable gallons per state, tax owed per state at that state's rate, minus tax you already paid at the pump.

What you get

A downloadable PDF report formatted by state — ready to use as a worksheet when filing through your base state's IFTA portal.

Important note

This is a worksheet, not a filing service. Always reconcile against your base state's IFTA quarterly return form. Rates updated 2026 Q3.