South Dakota IFTA Fuel Tax Rate, 2nd Quarter 2025
South Dakota's IFTA diesel rate for the 2nd quarter of 2025 is $0.2800 per gallon, unchanged from Q1 2025.
South Dakota rate for Q2 2025
Special diesel, Q2 2025
$0.2800
per US gallon, unchanged from Q1 2025
- Diesel tax rate
- $0.2800/gal
- Surcharge
- None listed
- Quarter
- Q2 2025, from Apr 1, 2025
- Change vs last quarter
- unchanged
Worked example: the South Dakota 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 South Dakota, and 100 gallons bought there.
South Dakota vs. its neighbors, Q2 2025
| Jurisdiction | Diesel + surcharge | vs. SD |
|---|---|---|
| Iowa | $0.3250 | +$0.0450 |
| Minnesota | $0.3180 | +$0.0380 |
| Nebraska | $0.3040 | +$0.0240 |
| Montana | $0.2975 | +$0.0175 |
| South Dakota | $0.2800 | — |
| Wyoming | $0.2400 | −$0.0400 |
| North Dakota | $0.2300 | −$0.0500 |
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.
South Dakota rate, last 4 quarters
Source: IFTA, Inc. Fuel Tax Rate Matrix, 2nd Quarter 2025 · Effective Apr 1, 2025 · Last verified Sep 28, 2026
IFTA, Inc. publishes the rates each member jurisdiction reports. South Dakota'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.