Montana IFTA Fuel Tax Rate, 3rd Quarter 2024
Montana's IFTA diesel rate for the 3rd quarter of 2024 is $0.2975 per gallon, unchanged from Q2 2024.
Montana rate for Q3 2024
Special diesel, Q3 2024
$0.2975
per US gallon, unchanged from Q2 2024
- Diesel tax rate
- $0.2975/gal
- Surcharge
- None listed
- Quarter
- Q3 2024, from Jul 1, 2024
- Change vs last quarter
- unchanged
Notes from the source
Matrix footnote #9 (MONTANA): Montana no longer requires gasoline, gasohol and ethanol to be reported on the IFTA tax return.
Worked example: the Montana 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 Montana, and 100 gallons bought there.
Montana vs. its neighbors, Q3 2024
| Jurisdiction | Diesel + surcharge | vs. MT |
|---|---|---|
| British Columbia | $0.9837 | +$0.6862 |
| Saskatchewan | $0.4129 | +$0.1154 |
| Alberta | $0.3578 | +$0.0603 |
| Idaho | $0.3200 | +$0.0225 |
| Montana | $0.2975 | — |
| South Dakota | $0.2800 | −$0.0175 |
| Wyoming | $0.2400 | −$0.0575 |
| North Dakota | $0.2300 | −$0.0675 |
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.
Montana rate, last 3 quarters
Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2024 · Effective Jul 1, 2024 · Last verified Sep 28, 2026
IFTA, Inc. publishes the rates each member jurisdiction reports. Montana'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.