Indiana IFTA Fuel Tax Rate, 3rd Quarter 2026
Indiana's IFTA diesel rate for the 3rd quarter of 2026 is $0.6300 per gallon, unchanged from Q2 2026.
Indiana rate for Q3 2026
Special diesel, Q3 2026
$0.6300
per US gallon, unchanged from Q2 2026
- Diesel tax rate
- $0.6300/gal
- Surcharge
- None listed
- Quarter
- Q3 2026, from Jul 1, 2026
- Change vs last quarter
- unchanged
Notes from the source
Matrix footnote #31 (INDIANA): Effective January 1, 2024, Indiana has adopted fuel tax rates for newly recognized fuel types: Electricity (EV), Hydrogen(HD), and Hythane (HT). Indiana’s fuel tax rate for these fuel types is based on the taxable distance traveled on Indiana Roads. The tax due for these fuel types is calculated by multiplying Indiana taxable distance traveled by the Indiana tax rate (D x R = T). Changed rates from 0.3400 to .03500 and from 0.5700 to 0.5900 Changed Rate changed from Gasoline 35 to 36 Sp Fuel from 59 to 61 Changed Rates for Gasoline from 0.3600 to 0.3700 & Special Fuel from 0.6100 to 0.6300 Indiana has issued a “gas tax holiday” on gasoline and gasohol fuel types. Effective July 1, 2026 – September 5, 2026 the fuel tax rate for gasoline and gasohol will be $0.00 per gallon. All other fuel types are unaffected. The matrix has a surcharge row for this jurisdiction but lists no Special Diesel surcharge.
Worked example: the Indiana line of your IFTA return
Change the numbers to match your quarter. Prefilled with 10,000 total miles on 1,550 gallons, 1,200 of those miles in Indiana, and 100 gallons bought there.
Indiana vs. its neighbors, Q3 2026
| Jurisdiction | Diesel + surcharge | vs. IN |
|---|---|---|
| Illinois | $0.7380 | +$0.1080 |
| Indiana | $0.6300 | — |
| Michigan | $0.5240 | −$0.1060 |
| Ohio | $0.4700 | −$0.1600 |
| Kentucky | $0.3250 | −$0.3050 |
On an IFTA return, a higher rate doesn't mean you pay more overall. Fuel you buy in a high-rate state earns a bigger credit. What matters is where you burn the fuel versus where you buy it.
Indiana rate, last 4 quarters
Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2026 · Effective Jul 1, 2026 · Last verified Sep 28, 2026
IFTA, Inc. publishes the rates each member jurisdiction reports. Indiana's tax agency is the final word on its rate.
Estimates for planning. Confirm with your tax pro or your base jurisdiction's IFTA office before filing.