IFTA calculator — Q2 2026, official rates
Enter miles and fuel purchases by jurisdiction. Fleet MPG, taxable gallons, IN/KY/VA surcharges and the total you owe — computed the way your base state does it. Q2 2026 return due July 31, 2026.
- Official Q2 2026 rate matrix
- All 58 US + Canada jurisdictions
- IN/KY/VA surcharges handled
- $14.99 per quarter — no subscription
How the IFTA calculation works
Four steps, straight from the IFTA governing documents:
- Fleet MPG = total miles in ALL jurisdictions ÷ total gallons purchased everywhere. One number for the whole quarter.
- Taxable gallons per jurisdiction = miles in that jurisdiction ÷ fleet MPG (what you burned there).
- Net taxable gallons = taxable gallons − gallons you purchased there (tax you already paid at the pump is credited).
- Tax = net gallons × that jurisdiction's rate. Indiana, Kentucky and Virginia add a surcharge on taxable gallons that purchases never offset — the classic trap that makes fuel-buying strategy in those states counterintuitive.
Negative totals are normal: buy more fuel than you burn in a high-tax state and that credit offsets tax owed elsewhere. The worksheet handles all of it with the official Q2 2026 rates.
Why not just use my ELD's IFTA module?
| iftawiz | ELD platforms (Motive, Samsara) | ExpressIFTA | |
|---|---|---|---|
| Price | $14.99 / quarter | $25-45 /truck /month + hardware + annual contract | $24.95 / report |
| Account | none | required | required |
| Data entry | your trip-sheet totals per state | automatic (GPS) | manual or import |
| Where data lives | your browser | their cloud | their cloud |
If you already run an ELD with IFTA reporting, use it. iftawiz is for owner-operators who keep trip sheets and don't want a $400+/year subscription to do fourth-grade division once a quarter.
Frequently asked questions
When is the Q2 2026 IFTA return due?
July 31, 2026. IFTA returns are due the last day of the month after each quarter ends: April 30, July 31, October 31 and January 31. File and pay through your base jurisdiction's portal even if you owe $0.
Which rates does the calculator use?
The official IFTA Inc. tax rate matrix for Q2 2026 (special diesel, U.S. dollars per gallon), including the Indiana / Kentucky / Virginia surcharge rows — see the full rate table page. Rates update every quarter and so does this site.
Does this file my return for me?
No — and that keeps it $14.99. You get a filing-ready worksheet with exactly the numbers your state portal asks for (taxable gallons, net gallons, tax by jurisdiction). Most base states have you type these into a web form; keep the worksheet and your receipts 4 years for audit.
Do Oregon miles count?
Yes. Oregon has no fuel tax for IFTA (it uses a weight-mile tax filed separately), but Oregon miles still count in total miles and therefore change your fleet MPG. Enter them with $0 rate — the calculator handles it.
What about Canadian provinces?
All ten IFTA member provinces are included at the official U.S.-dollar-per-gallon conversion from the matrix, so cross-border runs calculate correctly on one worksheet.