For owner-operators & fleets under 20 trucks
Quarterly fuel tax, done in ten minutes
No ELD. No GPS tracker. No spreadsheet to rebuild every quarter. Enter miles and gallons by state and get a filing-ready IFTA worksheet, plus an email reminder before the deadline so you never eat a late penalty.
No signup for the calculator. Diesel, all 58 IFTA jurisdictions.
Free IFTA calculator
Everything recalculates as you type. Nothing leaves your browser.
Quarterly fuel tax worksheet
Enter miles driven and gallons bought in each state. Diesel, official 3rd Quarter 2026 rates.
Add miles and gallons for at least one state to see your numbers.
Estimate only. Rates are the official IFTA, Inc. Special Diesel rates for 3rd Quarter 2026 in U.S. dollars per gallon, including the Kentucky and Virginia surcharges on taxable gallons. You remain the filer of record with your base jurisdiction — always check the numbers against your own records before filing.
How it works
Log the trip
Enter miles per state and fuel receipts as you go, or paste a whole quarter at once.
We do the math
Fleet MPG, taxable gallons, net gallons and tax per jurisdiction — recalculated every time you type.
File and file it away
Print the quarterly worksheet, key it into your base state's portal, keep the audit trail for four years.
Built for the carrier without an ELD
Fleet suites assume you already bought hardware. Cheap calculators leave you to rebuild the worksheet every quarter. FuelTaxDesk is the workflow in between.
Cheap IFTA calculators
One-off math, no memory. You start from scratch next quarter.
- ›Free one-time use
- ›No saved records
- ›No deadline reminders
- ›No audit archive
FuelTaxDesk ›
The worksheet you file from, stored and reminded every quarter.
- ›No ELD or GPS required
- ›Saved trucks, trips & receipts
- ›Deadline reminders at 14 & 3 days
- ›4-year audit archive
Fleet management suites
Bundled with ELD hardware and per-truck pricing for larger fleets.
- ›Requires ELD/GPS hardware
- ›Per-truck or per-mile fees
- ›Built for dispatch offices
- ›Overkill under 20 trucks
Who this is for
- ›Owner-operators and fleets with 1–20 trucks.
- ›Carriers who file on paper trip sheets and fuel receipts.
- ›Anyone tired of rebuilding the same spreadsheet four times a year.
- ›Operators who want a four-year audit trail without thinking about it.
Who this is not for
- ×Fleets that already have an ELD-bundled suite and a dispatcher handling IFTA.
- ×Companies looking for a tax preparer to file the return for them.
- ×Anyone who wants a one-time free calculation with no saved records.
Straight answers
Do you file the return for me?
No. You file with your base jurisdiction — that keeps you in control and keeps this a low-cost tool. FuelTaxDesk produces the worksheet with every number the return asks for, in the order it asks for them.
I don't have an ELD or GPS. Can I still use it?
That's exactly who this is built for. Paper trip sheets and a shoebox of receipts are fine — you type the totals, we handle the arithmetic.
What happens if I file late?
Base jurisdictions charge a penalty plus interest per jurisdiction and can suspend your IFTA license, which parks your truck. The quarterly reminder is the cheapest part of this product.
Are the tax rates current?
Rates change every quarter. The rate table is updated from the official IFTA tax-rate matrix each quarter, and the quarter it came from is shown on your worksheet so you can verify it.
Ready for the whole quarter?
Saved trucks, saved trips, deadline reminders and printable worksheets.
See plans