New Brunswick IFTA Fuel Tax Rate, 3rd Quarter 2025
New Brunswick's IFTA diesel rate for the 3rd quarter of 2025 is $0.4314 per gallon (C$0.1545 per litre), up $0.0224 from Q2 2025.
New Brunswick rate for Q3 2025
Special diesel, Q3 2025
$0.4314
per US gallon, up $0.0224 from Q2 2025
- Diesel tax rate
- $0.4314/gal
- Surcharge
- None listed
- Native rate
- C$0.1545/litre
- IFTA exchange rate
- 1 USD = 1.3556 CAD
- Quarter
- Q3 2025, from Jul 1, 2025
- Change vs last quarter
- up $0.0224
New Brunswick taxes fuel by the litre in Canadian dollars. The IFTA matrix shows C$0.1545 per litre as $0.4314 per US gallon, using that quarter's exchange rate of 1.3556 CAD to the US dollar.
Worked example: the New Brunswick 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 New Brunswick, and 100 gallons bought there.
New Brunswick vs. its neighbors, Q3 2025
| Jurisdiction | Diesel + surcharge | vs. NB |
|---|---|---|
| Quebec | $0.5640 | +$0.1326 |
| New Brunswick | $0.4314 | — |
| Nova Scotia | $0.4300 | −$0.0014 |
| Prince Edward Island | $0.3951 | −$0.0363 |
| Maine | $0.3120 | −$0.1194 |
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.
New Brunswick 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. New Brunswick'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.