Indiana IFTA Fuel Tax Rate, 3rd Quarter 2025
Indiana's IFTA diesel rate for the 3rd quarter of 2025 is $0.6100 per gallon, up $0.0200 from Q2 2025.
Indiana rate for Q3 2025
Special diesel, Q3 2025
$0.6100
per US gallon, up $0.0200 from Q2 2025
- Diesel tax rate
- $0.6100/gal
- Surcharge
- None listed
- Quarter
- Q3 2025, from Jul 1, 2025
- Change vs last quarter
- up $0.0200
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 to36 Sp Fuel from 59 to 61 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 2025
| Jurisdiction | Diesel + surcharge | vs. IN |
|---|---|---|
| Illinois | $0.7490 | +$0.1390 |
| Indiana | $0.6100 | — |
| Michigan | $0.5070 | −$0.1030 |
| Ohio | $0.4700 | −$0.1400 |
| Kentucky | $0.3250 | −$0.2850 |
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 2025 · Effective Jul 1, 2025 · 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.