# Stateline IFTA

> IFTA fuel tax math for owner-operators. Free calculators and the current IFTA diesel rate table, plus a printable trip pack that unlocks the Stateline app.

Status: template. Domain, Etsy listing and price are not final.

## Free tools
- [IFTA calculator](/ifta-calculator): miles and gallons bought by state in, tax owed or credited by state out. 4th quarter 2026 rates.
- [IFTA fuel tax rates](/ifta-fuel-tax-rates): all 58 IFTA diesel rates for the 4th quarter 2026, with the Kentucky and Virginia surcharges.
- [Load checker](/load-checker): after-fuel profit per mile for a load, graded take it, thin, or walk.
- [Cost per mile](/cost-per-mile): fixed, fuel and per-mile costs to a cost per mile.

## How the math works
- Fleet MPG is total miles divided by total gallons, rounded to two decimals.
- Taxable gallons per state are state miles divided by fleet MPG, rounded to the nearest gallon.
- Net tax per state is taxable gallons minus tax-paid gallons, times the rate, plus any surcharge on taxable gallons.
- [How we test it](/how-we-test): checked against a Tennessee sample return, Penske, Argo and 2026 worked examples, rounding examples from four state manuals, the official rate table, and 10,000 random returns solved a second way with whole-number math.

## Trip pack codes
- Each trip pack PDF has a code printed under the QR code on page 1, formatted SL-XXXX-XXXX-XXXX. Scanning the QR or typing the code at /unlock opens the app.
- Buy once. When IFTA posts new quarterly rates, the app updates itself the next time the phone has signal. No new PDF or code is needed.

## Offline
- The Stateline app is a web app you add to your home screen. After the first open with signal it works with no signal, and trips are saved on the phone.

## More
- [IFTA basics](/guides)
- [FAQ](/faq)
- [Support](/support)

Stateline does not file returns and is not tax advice.